WO2017199298A1 - Air conditioning system - Google Patents
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- WO2017199298A1 WO2017199298A1 PCT/JP2016/064502 JP2016064502W WO2017199298A1 WO 2017199298 A1 WO2017199298 A1 WO 2017199298A1 JP 2016064502 W JP2016064502 W JP 2016064502W WO 2017199298 A1 WO2017199298 A1 WO 2017199298A1
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- air conditioning
- power
- unit
- air conditioner
- heat source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
Definitions
- the present invention relates to an air conditioning system that performs demand control that suppresses the amount of power used by an air conditioner to a constant amount.
- an air conditioning system includes a controller that performs demand control so that the amount of power used does not exceed a certain amount and manages the air conditioning apparatus (see, for example, Patent Document 1).
- the air conditioner of Patent Document 1 is a compression / expansion type air conditioner configured by an outdoor unit including a compressor and an indoor unit including an indoor fan.
- the controller of patent document 1 restrict
- a plurality of air-conditioning target spaces are often air-conditioned using a central type air conditioner using a heat source machine such as a chiller.
- a central type air conditioner may become inefficient due to the division of the air-conditioning target space or the like, it is often used together with the compression / expansion type air conditioner.
- the controller in order to perform demand control, has an air conditioning capacity for each of the compressor and the heat source machine. It is necessary to make restrictions. In order to prevent the total power consumption of the compression / expansion air conditioner and the central air conditioner from exceeding a certain value, an administrator who sets demand control is permitted. The total amount of electric power needs to be distributed and set between the compression / expansion type air conditioner and the central type air conditioner.
- the demand control by the controller of Patent Document 1 is controlled by a compression / expansion air conditioner and cannot be applied to a central air conditioner. That is, the air conditioning system of Patent Document 1 has a problem that it cannot perform demand control in which a compression / expansion air conditioning apparatus and a central air conditioning apparatus are linked.
- the present invention has been made to solve the above-described problems, and provides an air conditioning system that realizes demand control in which a compression / expansion air conditioning apparatus and a central air conditioning apparatus are linked. For the purpose.
- the air conditioning system includes a first air conditioner in which an indoor unit and an outdoor unit are connected by a refrigerant pipe to circulate the refrigerant, and a heat source unit and a heat source indoor unit are connected by a heat medium pipe to generate heat.
- a second air conditioner that circulates the medium, and a management device that collects and manages the operation information indicating the operation state of the first air conditioner and the second air conditioner and the energy information indicating the power consumption. Then, the management device is based on the operation information and the electric energy information so that the total power consumption of the first air conditioner and the second air conditioner within a certain period does not exceed the power target value.
- Demand control is performed to limit the air conditioning capability of the air conditioner and the second air conditioner.
- the present invention controls the total power consumption of the first air conditioner and the second air conditioner within a certain period so as not to exceed the power target value. Since it is not necessary to distribute between the conditioning apparatus and the second air conditioning apparatus, the demand control can be realized by linking the compression-expansion first air conditioning apparatus and the central second air conditioning apparatus.
- FIG. 1 is a schematic diagram showing a configuration of an air conditioning system according to an embodiment of the present invention. With reference to FIG. 1, it demonstrates centering on the structure which concerns on the system of the communication system of the air conditioning system 100, and a control system. As shown in FIG. 1, the air conditioning system 100 includes a management device 10, a first air conditioning device 20, and a second air conditioning device 30.
- the first air conditioner 20 includes an outdoor unit 21, an indoor unit 22a, and an indoor unit 22b.
- the outdoor unit 21, the indoor unit 22a, and the indoor unit 22b are connected by a refrigerant pipe and configured to circulate the refrigerant.
- the outdoor unit 21 includes a compressor that compresses the refrigerant, a heat source side heat exchanger composed of, for example, a fin-and-tube heat exchanger, a heat source side fan that blows air to the heat source side heat exchanger, have.
- Each of the indoor units 22a and 22b includes an expansion valve made of, for example, an electromagnetic valve, a load-side heat exchanger made of, for example, a fin-and-tube heat exchanger, a load-side fan for blowing air to the load-side heat exchanger, have.
- the first air conditioner 20 has a refrigerant circuit in which a compressor, a heat source side heat exchanger, an expansion valve, and a load side heat exchanger are connected via a refrigerant pipe.
- the 1st air conditioning apparatus 20 performs the air conditioning of the space for air conditioning by changing the pressure of the refrigerant
- the second air conditioner 30 includes a heat source unit 31, a heat source indoor unit 32a, and a heat source indoor unit 32b.
- the heat source unit 31, the heat source indoor unit 32a, and the heat source indoor unit 32b are connected by a heat medium pipe, and the heat medium is circulated.
- the second air conditioner 30 in the present embodiment circulates water as a heat medium. That is, the heat source device 31 is made of, for example, a chiller, and produces hot water or cold water. Hereinafter, hot water or cold water is referred to as hot / cold water.
- the heat source indoor units 32a and 32b are made of, for example, a fan coil unit, and perform heat exchange using the heat of hot / cold water produced by the heat source unit 31 to perform air conditioning of the air-conditioning target space.
- the heat source unit 31 is configured to keep the water in the heat storage tank at a constant temperature according to the set temperature regardless of the operation state of the heat source indoor units 32a and 32b.
- the outdoor unit 21, the indoor units 22a and 22b, the heat source unit 31, and the heat source indoor units 32a and 32b are devices to be managed by the management apparatus 10. Therefore, hereinafter, the outdoor unit 21, the indoor units 22a and 22b, the heat source unit 31, and the heat source indoor units 32a and 32b are collectively referred to as devices to be managed or simply as devices.
- each device to be managed is operated by a different power source instead of a uniform AC power source. That is, each device to be managed corresponds to different power supply standards such as AC200V single phase, AC200V3 phase, AC400V3 phase, etc., and is connected to different power supply lines.
- the outdoor unit 21 is connected to a power source 300a via an outdoor unit power line 210, and the indoor units 22a and 22b are connected to a power source 300b via an indoor unit power line 220.
- the heat source unit 31 is connected to the power source 300c via the heat source unit power line 230, and the heat source indoor units 32a and 32b are connected to the power source 300d via the heat source indoor unit power line 240.
- the air conditioning system 100 includes watt-hour meters 40a to 40b, a pulse input device 50a, and a pulse input device 50b.
- the watt hour meter 40 a is connected to the outdoor unit power line 210, and the watt hour meter 40 b is connected to the indoor unit power line 220.
- the watt hour meter 40c is connected to the heat source unit power line 230, and the watt hour meter 40d is connected to the heat source indoor unit power line 240.
- the watt-hour meter 40a is connected to the pulse input device 50a by a pulse signal line 250a.
- the watt hour meter 40b is connected to the pulse input device 50a by a pulse signal line 250b.
- the watt-hour meter 40c is connected to the pulse input device 50b by a pulse signal line 250c.
- the watt-hour meter 40d is connected to the pulse input device 50b by a pulse signal line 250d.
- the watt-hour meters 40a to 40b have a pulse transmission function for transmitting a pulse signal indicating the electric energy.
- the watt-hour meter 40a and the watt-hour meter 40b output a pulse signal to the pulse input device 50a when the power amount exceeds a reference value set to, for example, 1 kWh.
- the watt-hour meter 40c and the watt-hour meter 40d output a pulse signal to the pulse input device 50b when the power amount exceeds a reference value.
- Each of the pulse input device 50a and the pulse input device 50b has a plurality of input ports (not shown) for inputting pulse signals.
- each of the pulse input device 50a and the pulse input device 50b has at least two input ports. Therefore, the pulse input device 50a can take in the pulse signals output from the watt-hour meter 40a and the watt-hour meter 40b. Further, the pulse input device 50b can take in pulse signals output from the watt-hour meter 40c and the watt-hour meter 40d.
- the pulse input device 50a counts the pulse signals output from the watt-hour meter 40a and the watt-hour meter 40b, thereby integrating the power consumption of the indoor units 22a and 22b and the like.
- the pulse input device 50b counts the pulse signals output from the watt hour meter 40c and the watt hour meter 40d, and thereby integrates the power consumption amount of the heat source unit 31 and the like. That is, the pulse input device 50a and the pulse input device 50b integrate the pulse signals from the watt hour meters 40a to 40d to calculate the power consumption amount of each device.
- the management device 10, the outdoor unit 21, the indoor unit 22a, the indoor unit 22b, the heat source unit 31, the heat source indoor unit 32a, the heat source indoor unit 32b, the pulse input device 50a, and the pulse input device 50b are connected by a transmission line 200.
- the transmission line 200 is a dedicated transmission line for the air conditioning system 100.
- Each device connected by the transmission line 200 can communicate signals including various data via the transmission line 200.
- the management device 10 transmits an operation command signal or the like based on the content of the setting operation to each device to be managed.
- each device connected by the transmission line 200 has, for example, a unique number and address in communication and is distinguished.
- each device connected by the transmission line 200 transmits a signal including data of a transmission destination and a transmission source address when performing communication.
- the outdoor unit 21 is connected to the power source 300a through the outdoor unit power line 210 and the watt hour meter 40a.
- the outdoor unit 21 is operated by electric power supplied from the power supply 300a.
- the indoor unit 22a and the indoor unit 22b are connected to the power source 300b through the indoor unit power line 220 and the watt hour meter 40b.
- the indoor unit 22a and the indoor unit 22b are operated by electric power supplied from the power supply 300b.
- the heat source unit 31 is connected to the power source 300c through the heat source unit power line 230 and the watt hour meter 40c.
- the heat source device 31 is operated by electric power supplied from the power source 300c.
- the heat source indoor unit 32a and the heat source indoor unit 32b are connected to the power source 300d through the heat source indoor unit power line 240 and the watt hour meter 40d.
- the heat source indoor unit 32a and the heat source indoor unit 32b are operated by electric power supplied from the power supply 300d.
- the management device 10 has an input unit 10A that accepts a setting operation by an administrator or the like.
- the input unit 10A may include an operation button or the like, and may be a mouse or a keyboard.
- the input unit 10A may be configured with a touch panel or the like.
- the input unit 10A is configured to have a communication function for communicating with a mobile terminal such as a mobile phone, a smartphone, a tablet PC, or a notebook PC, and configured to accept a setting operation from the mobile terminal. May be.
- the management device 10 performs setting processing such as initial setting processing in response to an operation by an administrator or the like. Moreover, the management apparatus 10 collects and manages the operation information which shows the operation state of the 1st air conditioning apparatus 20 and the 2nd air conditioning apparatus 30, and the electric energy information which shows power consumption. That is, the management apparatus 10 acquires the operation information and power consumption of the outdoor unit 21, the indoor unit 22a, and the indoor unit 22b from the pulse input device 50a via the transmission line 200. In addition, the management device 10 acquires operation information and power consumption of the heat source unit 31, the heat source indoor unit 32a, and the heat source indoor unit 32b from the pulse input device 50b via the transmission line 200.
- the management apparatus 10 predicts the power consumption amount of each device to be managed from the operation information and power amount information of each device to be managed. And the management apparatus 10 calculates
- FIG. 2 is a block diagram showing a functional configuration of the management apparatus 10 of FIG.
- the management apparatus 10 is a centralized controller that can individually control the outdoor unit 21, the indoor units 22a and 22b, the heat source unit 31, and the heat source indoor units 32a and 32b.
- the management apparatus 10 monitors each managed device and accepts an operation on each managed device.
- the management apparatus 10 has a schedule management function and a function for managing data such as an operation state and power amount information of each device to be managed.
- the management apparatus 10 includes a communication unit 101, an operation information collection unit 102, an operation information storage unit 103, an operation information setting unit 104, and an operation information processing unit 105. .
- the management apparatus 10 includes a power amount information collecting unit 106, a power amount information storage unit 107, a power amount information setting unit 108, and a power amount information processing unit 109.
- the management device 10 includes a control content setting unit 110, a control content processing unit 111, a control content storage unit 112, an operation information change unit 113, and a change storage unit 114.
- the communication unit 101 is for connecting the management apparatus 10 to the transmission line 200.
- the communication unit 101 receives a signal flowing through the transmission line 200 and extracts data necessary for demand control. That is, the communication unit 101 has a function of analyzing a general voltage signal flowing through the transmission line 200 and capturing it as a communication signal.
- the communication unit 101 has a function of converting a communication signal into a voltage.
- the driving information collection unit 102 performs processing for collecting data related to the driving state as driving information from the data extracted by the communication unit 101, and stores the collected driving information in the driving information storage unit 103.
- the driving information collecting means 102 has time measuring means such as a timer in order to perform driving information collecting processing at regular time intervals.
- the data relating to the operation state is data indicating, for example, the start / stop of each device to be managed, the operation mode, the set wind speed, the set wind direction, the set temperature, and the save operation information.
- the operation information collection unit 102 collects information indicating the operation state of each managed device as operation information.
- the operation information collection unit 102 collects data such as operation state and set temperature for each device to be managed.
- the operation information collecting means 102 collects data such as the start / stop of the heat source unit 31 and the set water temperature and the data such as the start / stop of the heat source indoor units 32a and 32b and the set temperature as operation information.
- the driving information storage means 103 stores and saves the driving information collected by the driving information collection means 102 individually.
- the operation information setting unit 104 is a setting unit for operating each device to be managed, and performs a setting process regarding the operation content in the input unit 10A.
- the operation information setting means 104 receives and sets an input operation relating to the start / stop of each device to be managed or a set temperature.
- the administrator or the like can operate the start / stop of each device to be managed, the set temperature, and the like via the operation information setting unit 104 by operating the input unit 10A.
- the driving information setting unit 104 has a function of setting management information for associating the driving information collected by the driving information collecting unit 102 with each device to be managed.
- the driving information processing unit 105 assigns the driving information stored in the driving information storage unit 103 to each device to be managed based on the contents of the management information set by the driving information setting unit 104, and for each device to be managed. It asks for driving information.
- the driving information processing unit 105 stores the driving information for each managed device after the allocation process in the driving information storage unit 103 again.
- the driving information processing unit 105 compares the content set by the driving information setting unit 104 with the driving information indicating the driving state of each device that is actually managed and acquired by the driving information collecting unit 102. It is determined whether or not to change. More specifically, the operation information processing unit 105 determines, for example, whether to change the air volume of the fan to a weak wind, whether to forcibly stop the compressor, and the like.
- the operation information processing means 105 determines whether or not to increase the set temperature during the cooling operation, and determines whether or not to decrease the set temperature during the heating operation.
- the power amount information collecting unit 106 performs processing for collecting data output from the pulse input devices 50a and 50b included in the data extracted by the communication unit 101 as power amount information.
- the power amount information collecting unit 106 stores the collected power amount information in the power amount information storage unit 107.
- the electric energy information collecting means 106 has time measuring means such as a timer in order to perform the operation information collecting process at regular time intervals.
- the electric energy information storage means 107 is for individually storing and storing the operation information collected by the operation information collection means 102.
- the power amount information setting means 108 performs setting processing related to the operation content at the input unit 10A.
- the power amount information setting unit 108 sets allocation information indicating which device among the devices to be managed is the power amount information.
- the power amount information setting unit 108 can set information indicating whether the power amount information is used or not used, and can finely adjust the power amount information.
- the power amount information processing unit 109 performs processing for allocating the power amount information for each device to be managed based on the allocation information set by the power amount information setting unit 108. That is, the power amount information processing unit 109 assigns the power amount information acquired by the power amount information collection unit 106 to each management target device based on the contents set by the power amount information setting unit 108, and The power consumption for each device is obtained. The power amount information processing unit 109 stores the power consumption amount of each managed device in the power amount information storage unit 107.
- the control content setting means 110 performs processing for setting the priority of control content for each managed device and processing for setting a threshold value for demand control. Further, the control content setting means 110 sets the content of demand control such as changing the set temperature of each device to be managed or stopping the operation.
- the threshold for demand control includes a power target value that is a criterion for starting demand control.
- the control content setting unit 110 stores the setting content in the control content storage unit 112. The priority order may be set between the first air conditioner 20 and the second air conditioner 30, or may be set for each device to be managed.
- the priority is set in consideration of the operating capacity of the compressor, the fan capacity, the characteristics of the first air conditioner 20 that is the compression / expansion system, the characteristics of the second air conditioner 30 that is the central system, and the like. Good. For example, when the indoor unit 22a and the heat source indoor unit 32a air-condition the same air-conditioning target space, the indoor unit 22a and the heat source indoor unit are set according to the temperature difference ⁇ T between the temperature of the air-conditioning target space and the set temperature. You may make it change the priority with 32a.
- the priority of the demand control of the indoor unit 22a is increased, and when the temperature difference ⁇ T is larger than the certain temperature, the demand control of the heat source indoor unit 32a is performed. You may make it make a priority high.
- the temperature difference ⁇ T is smaller than a certain temperature, it is possible to perform demand control such as increasing the capacity limit of the indoor unit 22a while maintaining at least the current temperature by the heat source indoor unit 32a. it can.
- the temperature difference ⁇ T is larger than a certain temperature, it is possible to perform demand control such as increasing the limit of the capacity of the indoor unit for heat source 32a without limiting the capacity of the indoor unit 22a as much as possible. For this reason, according to the air conditioning system 100, energy saving can be achieved without impairing comfort.
- the control content setting unit 110 performs setting processing related to the operation content at the input unit 10A.
- the control content setting means 110 has a schedule management function for managing data related to demand control, for example, every hour, every day, and every day of the week. That is, the control content setting unit 110 has a function of registering the setting contents of the priority order and the power target value in association with at least one of each hour, each day, and each day of the week.
- the control content setting means 110 has a function of changing at least one of the priority order setting content and the power target value setting content according to at least one of every hour, every day, and every day of the week. is doing.
- the administrator or the like can set the priority order of each device to be managed by the control content setting means 110 according to the sunshine hours, working hours, working days, etc. of the air conditioning target space. Then, the content of demand control can be adjusted according to the priority order of each device set by the control content setting means 110.
- the control content setting unit 110 may have a function of changing various information related to demand control in association with at least one of time, date, and day of the week.
- the control content processing means 111 has a processing content procedure for realizing each function in advance as a program. That is, the control content processing unit 111 implements each function by executing a program.
- the control content processing unit 111 uses the driving information processed by the driving information processing unit 105, the power amount information processed by the power amount information processing unit 109, and the information set by the control content setting unit 110, as driving information. The control which changes is performed.
- the control content processing unit 111 stores the current control content in the control content storage unit 112.
- the control content processing unit 111 uses the operation information for each device to be managed and the data for the past several minutes of the power consumption of each device to be managed for each device when the same operation state continues.
- the power consumption after a certain period is predicted.
- the past several minutes corresponds to a demand time limit, and is set to, for example, 30 minutes.
- the certain period is set to one day, for example. Then, when the total predicted power value, which is the sum of the predicted power consumption values for each managed device, is likely to exceed the power amount target value set by the control content setting unit 110, the control content processing unit 111 Then, according to the content of the demand control set by the control content setting means 110, the demand control is performed on each device.
- the driving information changing unit 113 performs a process of changing the driving information based on the determination result in the control content processing unit 111 and stores the changed driving information in the change storage unit 114. And the management apparatus 10 transmits the content changed in the driving information change means 113 to the transmission line 200 via the communication means 101, and changes the driving
- the management apparatus 10 can also be realized by hardware such as a circuit device that realizes each of the functions described above, for example, a calculation device such as a microcomputer such as a DSP (Digital Signal Processor) or a CPU (Central Processing Unit). It can also be realized as software executed above.
- the operation information storage means 103, the electric energy information storage means 107, the control content storage means 112, and the change storage means 114 are configured by a PROM (Programmable Read Only Memory) such as a flash memory or a HDD (Hard Disk Drive). be able to.
- the operation information storage unit 103, the power amount information storage unit 107, the control content storage unit 112, and the change storage unit 114 may be configured by one storage unit.
- FIG. 3 is a flowchart showing an operation of demand control by the management apparatus 10 of FIG.
- the air conditioning system 100 configured as described above realizes demand control in cooperation with each device by the management device 10 collecting operation information and power amount information of each device.
- FIG. 3 a processing procedure of demand control performed by the management apparatus 10 will be described.
- the management apparatus 10 After the power is turned on, the management apparatus 10 receives an operation from an administrator or the like and performs an initial setting process (step S101). Then, after the initial setting is completed, the management apparatus 10 executes the following processing.
- the management apparatus 10 performs an operation information acquisition process for acquiring and storing the operation information of each device to be managed (step S102). Further, the management device 10 performs power amount information acquisition processing for acquiring and storing the power amount information of each device to be managed from the pulse input devices 50a and 50b (step S103).
- the management apparatus 10 predicts the power consumption amount of each device to be managed from the operation information acquired in step S102 and the power amount information acquired in step S103, and obtains a prediction result as a predicted value (Ste S104). And the management apparatus 10 calculates
- step S105 when the total predicted power value obtained in step S105 is smaller than the power target value set in step S101 (No in step S106), the management apparatus 10 maintains the current state and returns to step S102.
- step S106 / Yes when the total predicted power value is equal to or higher than the power target value (step S106 / Yes), the management apparatus 10 performs demand control on each device according to the priority set in step S101 (step S107). Then, the management apparatus 10 repeatedly performs a series of operations in steps S102 to S107.
- the control content setting unit 110 receives a setting operation related to demand control, and registers the received setting content.
- the control content setting unit 110 registers the devices to be managed, registers the pulse input devices 50a and 50b, and the amount of power acquired from the input ports of the pulse input devices 50a and 50b.
- the allocation information indicating whether or not is registered.
- the control content setting means 110 performs registration of a power target value that determines the timing for performing demand control, registration of priority between devices that perform demand control, and registration of demand control content.
- the power target value may be set and registered at regular intervals such as one hour, one day, one week, or one month.
- the control content setting unit 110 performs registration of date and time settings in the schedule management function.
- the management apparatus 10 monitors the state of each device adjacent to the management target and automatically performs demand control.
- the date and time setting in the schedule management function is not necessarily performed in the initial setting process. For this reason, when the date / time setting or the like in the schedule management function is not performed, the management apparatus 10 continues the demand control operation without changing the contents set in the initial setting process.
- step S101 each device that is a management target of the management device 10 transmits data indicating that the operation state has changed to the management device 10 when an operation such as start / stop or set temperature is performed. To do.
- the management device 10 acquires the driving information from the data received from each managed device by the driving information collecting unit 102 and stores the acquired driving information in the driving information storage unit 103.
- the power amount information collecting unit 106 periodically monitors the power amount for the pulse input devices 50a and 50b that are the management targets of the management device 10 in step S101. That is, the power amount information collecting unit 106 requests the pulse input devices 50a and 50b to output the power amount, for example, every minute. Then, the electric energy information collecting unit 106 collects response data regarding the electric energy from the pulse input devices 50a and 50b as electric energy information. Next, the power amount information processing unit 109 allocates the power amount information collected by the power amount information collecting unit 106 to each device to be managed in accordance with the allocation information set and registered in step S101, and uses it as the power amount information of each device. It is stored in the electric energy information storage means 107.
- step S104 the details of the processing procedure of the power consumption prediction process (step S104) of each managed device will be described.
- the control content processing unit 111 Based on the operation information acquired in step S102 and the power amount information of each device acquired in step S103, the control content processing unit 111 detects the change in the accumulated power amount over the past several minutes such as 30 minutes.
- the power consumption for each device to be managed is predicted. That is, the control content processing unit 111 determines how much power will be consumed by each managed device over a certain period in the future when the current operating state continues from the change in the accumulated amount of power over the past several minutes. As a predicted value.
- the certain period is set to one day, for example.
- the predicted value of the power consumption amount of each managed device is stored in the control content storage unit 112.
- the control content processing means 111 totals the predicted power consumption values for each device acquired in step S104, and predicts how much of the entire device will be consumed in a certain period in the future. That is, the control content processing unit 111 adds up the predicted power consumption values for each managed device to obtain a total predicted power value that is a predicted power consumption value for each device as a whole. Then, the control content processing unit 111 stores the obtained total predicted power value in the control content storage unit 112.
- control content processing unit 111 compares the total predicted power value obtained in step S105 with the power amount target value set in step S101 (step S106).
- control content processing means 111 can perform the comparison process in step S106 in combination with at least two of hourly prediction, daily prediction, and monthly prediction. That is, in the case of hourly prediction, the control content processing unit 111 performs a comparison process between the total predicted power value currently predicted and the power target value set in association with one hour. In addition, in the case of prediction in units of one day, the control content processing unit 111 adds the integrated value of the power amount from 0:00 to the present and the predicted value of the power consumption from the present to the next 0:00. Thus, the total predicted power value for each day is obtained. Then, the control content processing unit 111 performs a comparison process between the calculated total predicted power value for each day and the power target value set in association with the day.
- the control content processing unit 111 sets the settlement date in advance, the integrated value of the electric energy from the day after the settlement date to the present, and the power consumption from the present to the settlement date.
- the total predicted power value in units of one month is obtained by adding the predicted value of the quantity. Then, the control content processing unit 111 performs a comparison process between the obtained total predicted power value in units of one month and a power target value set in association with one month.
- Step S106 / No When the total predicted power value is less than the power target value (step S106 / No), the control content processing unit 111 returns to step S102 without performing demand control.
- the control content processing unit 111 performs demand control on each device according to the content set in Step S101. (Step S107). Then, the management apparatus 10 repeatedly performs a series of operations in steps S102 to S107, and when the total predicted power value becomes smaller than the power target value (step S106 / No), cancels demand control, and proceeds to step S102. Return. That is, the management apparatus 10 repeatedly performs a series of operations in steps S102 to S107.
- each process of the demand control by the management apparatus 10 was demonstrated in order of the code
- the driving information acquisition process (step S102) and the power amount information acquisition process (step S103) may be performed in parallel or in a reversed order.
- the management device 10 includes the first air conditioning device 20 and the second air conditioning device 30 within a certain period based on the operation information and the electric energy information.
- the total power consumption is controlled so as not to exceed the power target value. Therefore, since the air conditioning system 100 does not need to distribute the total amount of power allowed to the first air conditioner and the second air conditioner, the compression-expansion type first air conditioner and the central type first air conditioner Demand control can be realized in cooperation with two air conditioners.
- the air conditioning system 100 is configured to manage each device to be managed in a property such as a large-scale building in which the compression-expansion first air conditioner 20 and the central second air conditioner 30 are provided. Demand control that links them together can be realized.
- the management apparatus 10 has a function which receives and sets the priority setting operation regarding the demand control of the 1st air conditioning apparatus 20 and the 2nd air conditioning apparatus 30, and the setting operation of electric power target value. Yes.
- the management apparatus 10 can accept a priority setting operation and a power target value setting operation by the input unit 10A.
- the management apparatus 10 can perform setting registration regarding the operation content at the input unit 10 ⁇ / b> A by the control content setting unit 110. Therefore, the air conditioning system 100 can perform demand control according to the priority order in light of the set power target value for the total predicted power value.
- the air conditioning system 100 can set the priority order of each device in association with information on the presence or absence of a person for each air-conditioning target space.
- the air conditioning system 100 can adjust the balance that limits the air-conditioning capability such that the place where the person is present is not subjected to demand control and only the place where there is no person is centrally demand-controlled. . Therefore, according to the air conditioning system 100, energy saving can be achieved without losing comfort.
- the management device 10 has a function of changing the priority set and registered by the schedule management function according to at least one of hourly, daily and day of week. That is, the management apparatus 10 can adjust the content of demand control according to the priority order of each device set according to the sunshine hours, working hours, working days, etc. of the air conditioning target space. For this reason, according to the air conditioning system 100, energy saving can be promoted while maintaining comfort.
- the air conditioning system 100 when used for a property such as a large-scale building, for example, the compression-expansion type first air conditioner 20 is used for air conditioning of an individual room or the like, and an entrance or a common space or the like A central second air conditioner 30 is used for air conditioning in a salon or the like.
- the air conditioning system 100 performs demand control on the first air conditioner 20 corresponding to an individual room or the like, and does not perform demand control on the second air conditioner 30 corresponding to a shared space or the like.
- the target area for demand control can be adjusted.
- the air conditioning system 100 can set a demand level for each target area for demand control.
- the air conditioning system 100 can perform the demand control of the second air conditioning apparatus 30 according to the set demand level when the demand over occurs only by the demand control of the first air conditioning apparatus 20.
- the management device 10 may execute the schedule management function in combination with the setting function of the target area for demand control.
- the air conditioning system 100 preferentially performs demand control on the first air conditioning apparatus 20 corresponding to an individual room or the like on a weekday when people gather in a common space or the like, and a specific room.
- demand control may be preferentially performed on the second air conditioner 30 corresponding to a shared space or the like. That is, the air conditioning system 100 may adjust the target area for demand control according to the calendar information.
- the management device 10 may determine whether to perform demand control for each air-conditioning target space such as an individual room. In addition, the management device 10 recognizes an air-conditioning target space such as a shared space by dividing it into a plurality of areas, sets individual demand levels for each area, and performs demand control for each area according to the set demand level. You may make it perform. That is, the air conditioning system 100 designates an area or the like for which demand control is to be performed by a single management device 10, and demand control based on the total electric energy of the first air conditioning device 20 and the second air conditioning device 30. It can be performed.
- the embodiment described above is a preferred specific example in the air conditioning system, and the technical scope of the present invention is not limited to these embodiments.
- the content of demand control may be set in the management device 10 in a plurality of stages instead of only one stage.
- the management apparatus 10 is good to enable it to set the electric power target value according to each step.
- the management apparatus 10 has four levels of power target values A to D (A ⁇ B ⁇ C ⁇ D) depending on the amount of electric power, and four levels of demand control P to S (based on the limit of the air conditioning capacity). Assume that P ⁇ Q ⁇ R ⁇ S) is set and registered.
- the management apparatus 10 may select and execute the demand controls P to S according to the magnitude relationship between the total predicted power value and the power target values A to D. That is, the management apparatus 10 executes demand control P if A ⁇ total predicted power value ⁇ B, executes demand control Q if B ⁇ total predicted power value ⁇ C, and C ⁇ total predicted power value ⁇ If D, demand control R may be implemented, and if D ⁇ total predicted power value, demand control S may be implemented. If it does in this way, flexible demand control in consideration of a user's comfort can be performed. In addition, since demand control with less limitation of air conditioning capability can be performed at a relatively early stage, it is possible to reduce the risk of occurrence of demand over and to save energy.
- FIG. 1 illustrates the case where the air conditioning system 100 includes two pulse input devices, but is not limited thereto.
- the air conditioning system 100 may include one pulse input device that functions in the same manner as the pulse input device 50a and the pulse input device 50b.
- One pulse input device may have at least four input ports, and may be configured to capture pulse signals output from the watt-hour meters 40a to 40d.
- FIG. 1 illustrates the case where the air conditioning system 100 includes one outdoor unit and two indoor units, but is not limited thereto. That is, the air conditioning system 100 may have two or more outdoor units. In addition, the air conditioning system 100 may have one or three or more indoor units.
- FIG. 1 illustrates the case where the air-conditioning system 100 has one heat source unit and two heat source indoor units, but is not limited thereto. That is, the air conditioning system 100 may have two or more heat source units. In addition, the air conditioning system 100 may include one or three or more heat source indoor units.
- the management apparatus 10 may include a communication unit that receives a remote operation by communication such as XML (Extensible Markup Language), for example.
- the communication unit may receive a demand control change command from the outside and perform a demand control change process in conjunction with another internal configuration of the management apparatus 10. In this way, for example, when there is a shortage of power or when a disaster occurs, the administrator etc. can change the content of demand control from the outside via the communication unit of the management device 10 even if he / she is not at the site. can do.
- the present invention in the present embodiment, the case where the second air conditioner 30 circulates water has been exemplified.
- the present invention is not limited thereto, and the second air conditioner 30 may be configured to circulate brine or the like as a heat medium. Good.
- the air-conditioning system 100 provided with the compression-expansion-type air conditioning apparatus and the central-type air conditioning apparatus using a heat source machine was demonstrated, it is not limited to this.
- the air conditioning system 100 may include a compression / expansion air conditioning apparatus and an air conditioning apparatus using a refrigerator, a boiler, or the like.
- 10 management device 10A input unit, 20 first air conditioner, 21 outdoor unit, 22a, 22b indoor unit, 30 second air conditioner, 31 heat source unit, 32a, 32b heat source indoor unit, 40a-40d watt hour meter , 50a, 50b, pulse input device, 100 air conditioning system, 101 communication means, 102 operation information collection means, 103 operation information storage means, 104 operation information setting means, 105 operation information setting means, 106 electric energy information collection means, 107 electric power Amount information storage means, 108 power amount information setting means, 109 power amount information processing means, 110 control content setting means, 111 control content processing means, 112 control content storage means, 113 operation information change means, 114 change storage means, 200 transmission Line, 210 power supply line for outdoor unit, 220 power supply for indoor unit Line 230 heat source machine power line, the power line for 240 heat the indoor unit, 250a ⁇ 250d pulse signal lines, 300a ⁇ 300d supply.
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Abstract
Provided is an air conditioning system comprising: a first air conditioning device in which an indoor unit and an outdoor unit are connected by refrigerant piping through which a refrigerant is circulated; a second air conditioning device in which a heat source unit and an indoor unit for the heat source are connected by heating medium piping through which a heating medium is circulated; and a management device that collects and manages operation information indicating an operation state of the first air conditioning device and the second air conditioning device and power amount information indicating the amount of power consumed. On the basis of the operation information and the power amount information, the management device performs demand control to control the air conditioning capacity of the first air conditioning device and the second air conditioning device so that the total amount of power consumption of the first air conditioning device and the second air conditioning device within a fixed time period does not exceed a power target value.
Description
本発明は、空気調和装置による電力使用量を一定量に抑えるデマンド制御を行う空気調和システムに関する。
The present invention relates to an air conditioning system that performs demand control that suppresses the amount of power used by an air conditioner to a constant amount.
従来から、空気調和システムは、電力使用量が一定量を超えないようにデマンド制御を行い、空気調和装置を管理するコントローラを備えている(例えば特許文献1参照)。特許文献1の空気調和装置は、圧縮機を含む室外機と室内ファンを備えた室内機とにより構成された圧縮膨張式の空気調和装置である。そして、特許文献1のコントローラは、エネルギー使用量が目標エネルギー量を超過しないように、省エネルギー契約に従って空気調和装置の空調能力を制限するものである。
Conventionally, an air conditioning system includes a controller that performs demand control so that the amount of power used does not exceed a certain amount and manages the air conditioning apparatus (see, for example, Patent Document 1). The air conditioner of Patent Document 1 is a compression / expansion type air conditioner configured by an outdoor unit including a compressor and an indoor unit including an indoor fan. And the controller of patent document 1 restrict | limits the air-conditioning capability of an air conditioning apparatus according to an energy saving contract so that energy consumption may not exceed target energy amount.
一方、大規模なビル等では、チラーなどの熱源機によるセントラル方式の空気調和装置を用いて、複数の空調対象空間を空調することが多い。ただし、セントラル方式の空気調和装置は、空調対象空間の区割り等の影響で非効率となる場合があるため、圧縮膨張式の空気調和装置と併用されることも多い。
On the other hand, in a large-scale building or the like, a plurality of air-conditioning target spaces are often air-conditioned using a central type air conditioner using a heat source machine such as a chiller. However, since the central type air conditioner may become inefficient due to the division of the air-conditioning target space or the like, it is often used together with the compression / expansion type air conditioner.
ここで、圧縮膨張式の空気調和装置とセントラル方式の空気調和装置とが併用されている建物において、デマンド制御を行うためには、コントローラが、圧縮機と熱源機とのそれぞれに対して空調能力の制限を行う必要がある。そして、圧縮膨張式の空気調和装置とセントラル方式の空気調和装置との合計の消費電力量が一定の値を超えないようにするためには、デマンド制御を設定する管理者等が、許容される合計の電力量を、圧縮膨張式の空気調和装置とセントラル方式の空気調和装置とに配分して設定する必要がある。
Here, in a building where a compression / expansion air conditioner and a central air conditioner are used together, in order to perform demand control, the controller has an air conditioning capacity for each of the compressor and the heat source machine. It is necessary to make restrictions. In order to prevent the total power consumption of the compression / expansion air conditioner and the central air conditioner from exceeding a certain value, an administrator who sets demand control is permitted. The total amount of electric power needs to be distributed and set between the compression / expansion type air conditioner and the central type air conditioner.
しかしながら、特許文献1のコントローラによるデマンド制御は、圧縮膨張方式の空気調和装置が制御対象となっており、セントラル方式の空気調和装置には適用することができない。すなわち、特許文献1の空気調和システムは、圧縮膨張方式の空気調和装置とセントラル方式の空気調和装置とを連携させたデマンド制御を行うことができないという課題がある。
However, the demand control by the controller of Patent Document 1 is controlled by a compression / expansion air conditioner and cannot be applied to a central air conditioner. That is, the air conditioning system of Patent Document 1 has a problem that it cannot perform demand control in which a compression / expansion air conditioning apparatus and a central air conditioning apparatus are linked.
本発明は、上記のような課題を解決するためになされたものであり、圧縮膨張方式の空気調和装置とセントラル方式の空気調和装置とを連携させたデマンド制御を実現する空気調和システムを提供することを目的とする。
The present invention has been made to solve the above-described problems, and provides an air conditioning system that realizes demand control in which a compression / expansion air conditioning apparatus and a central air conditioning apparatus are linked. For the purpose.
本発明に係る空気調和システムは、室内機と室外機とが冷媒配管で接続されて冷媒を循環させる第1空気調和装置と、熱源機と熱源用室内機とが熱媒体配管で接続されて熱媒体を循環させる第2空気調和装置と、第1空気調和装置及び第2空気調和装置の運転状態を示す運転情報と消費電力量を示す電力量情報を収集して管理する管理装置と、を有し、管理装置は、運転情報及び電力量情報をもとに、一定期間内における第1空気調和装置と第2空気調和装置との合計の消費電力が電力目標値を超えないように、第1空気調和装置及び第2空気調和装置の空調能力を制限するデマンド制御を行うものである。
The air conditioning system according to the present invention includes a first air conditioner in which an indoor unit and an outdoor unit are connected by a refrigerant pipe to circulate the refrigerant, and a heat source unit and a heat source indoor unit are connected by a heat medium pipe to generate heat. A second air conditioner that circulates the medium, and a management device that collects and manages the operation information indicating the operation state of the first air conditioner and the second air conditioner and the energy information indicating the power consumption. Then, the management device is based on the operation information and the electric energy information so that the total power consumption of the first air conditioner and the second air conditioner within a certain period does not exceed the power target value. Demand control is performed to limit the air conditioning capability of the air conditioner and the second air conditioner.
本発明は、一定期間内における第1空気調和装置と第2空気調和装置との合計の消費電力が電力目標値を超えないように制御することから、許容される合計の電力量を第1空気調和装置と第2空気調和装置とに配分する必要がないため、圧縮膨張方式の第1空気調和装置とセントラル方式の第2空気調和装置とを連携させてデマンド制御を実現することができる。
The present invention controls the total power consumption of the first air conditioner and the second air conditioner within a certain period so as not to exceed the power target value. Since it is not necessary to distribute between the conditioning apparatus and the second air conditioning apparatus, the demand control can be realized by linking the compression-expansion first air conditioning apparatus and the central second air conditioning apparatus.
実施の形態.
図1は、本発明の実施の形態における空気調和システムの構成を示す模式図である。図1を参照して、空気調和システム100の通信系及び制御系のシステムに係る構成を中心に説明する。図1に示すように、空気調和システム100は、管理装置10と、第1空気調和装置20と、第2空気調和装置30と、を有している。 Embodiment.
FIG. 1 is a schematic diagram showing a configuration of an air conditioning system according to an embodiment of the present invention. With reference to FIG. 1, it demonstrates centering on the structure which concerns on the system of the communication system of theair conditioning system 100, and a control system. As shown in FIG. 1, the air conditioning system 100 includes a management device 10, a first air conditioning device 20, and a second air conditioning device 30.
図1は、本発明の実施の形態における空気調和システムの構成を示す模式図である。図1を参照して、空気調和システム100の通信系及び制御系のシステムに係る構成を中心に説明する。図1に示すように、空気調和システム100は、管理装置10と、第1空気調和装置20と、第2空気調和装置30と、を有している。 Embodiment.
FIG. 1 is a schematic diagram showing a configuration of an air conditioning system according to an embodiment of the present invention. With reference to FIG. 1, it demonstrates centering on the structure which concerns on the system of the communication system of the
第1空気調和装置20は、室外機21と、室内機22aと、室内機22bと、を有している。室外機21と室内機22aと室内機22bとは、冷媒配管により接続されており、冷媒が循環するように構成されている。図示はしていないが、室外機21は、冷媒を圧縮する圧縮機と、例えばフィンアンドチューブ型熱交換器からなる熱源側熱交換器と、熱源側熱交換器に送風する熱源側ファンと、を有している。また、室内機22a及び22bは、それぞれ、例えば電磁弁からなる膨張弁と、例えばフィンアンドチューブ型熱交換器からなる負荷側熱交換器と、負荷側熱交換器に送風する負荷側ファンと、を有している。そして、第1空気調和装置20は、圧縮機と、熱源側熱交換器と、膨張弁と、負荷側熱交換器とが冷媒配管を介して接続された冷媒回路を有している。第1空気調和装置20は、冷媒配管中を流れる冷媒の圧力を変化させ、冷媒に吸熱又は放熱させることにより、空調対象空間の空気調和を行うものである。
The first air conditioner 20 includes an outdoor unit 21, an indoor unit 22a, and an indoor unit 22b. The outdoor unit 21, the indoor unit 22a, and the indoor unit 22b are connected by a refrigerant pipe and configured to circulate the refrigerant. Although not shown, the outdoor unit 21 includes a compressor that compresses the refrigerant, a heat source side heat exchanger composed of, for example, a fin-and-tube heat exchanger, a heat source side fan that blows air to the heat source side heat exchanger, have. Each of the indoor units 22a and 22b includes an expansion valve made of, for example, an electromagnetic valve, a load-side heat exchanger made of, for example, a fin-and-tube heat exchanger, a load-side fan for blowing air to the load-side heat exchanger, have. The first air conditioner 20 has a refrigerant circuit in which a compressor, a heat source side heat exchanger, an expansion valve, and a load side heat exchanger are connected via a refrigerant pipe. The 1st air conditioning apparatus 20 performs the air conditioning of the space for air conditioning by changing the pressure of the refrigerant | coolant which flows in refrigerant | coolant piping, and making a refrigerant | coolant heat-absorb or heat-radiate.
第2空気調和装置30は、熱源機31と、熱源用室内機32aと、熱源用室内機32bと、を有している。熱源機31と熱源用室内機32aと熱源用室内機32bとは、熱媒体配管により接続されており、熱媒体が循環するように構成されている。本実施の形態における第2空気調和装置30は、水を熱媒体として循環させるものである。すなわち、熱源機31は、例えばチラーからなり、温水又は冷水を作り出すものである。以降では、温水又は冷水を温冷水という。熱源用室内機32a及び32bは、例えばファンコイルユニットからなり、熱源機31が作り出す温冷水の熱を利用して熱交換を行い、空調対象空間の空気調和を行うものである。なお、熱源機31は、熱源用室内機32a及び32bの運転状態にかかわらず、設定された温度に従って、蓄熱槽内の水を一定の温度に保ち続けるように構成されている。
The second air conditioner 30 includes a heat source unit 31, a heat source indoor unit 32a, and a heat source indoor unit 32b. The heat source unit 31, the heat source indoor unit 32a, and the heat source indoor unit 32b are connected by a heat medium pipe, and the heat medium is circulated. The second air conditioner 30 in the present embodiment circulates water as a heat medium. That is, the heat source device 31 is made of, for example, a chiller, and produces hot water or cold water. Hereinafter, hot water or cold water is referred to as hot / cold water. The heat source indoor units 32a and 32b are made of, for example, a fan coil unit, and perform heat exchange using the heat of hot / cold water produced by the heat source unit 31 to perform air conditioning of the air-conditioning target space. The heat source unit 31 is configured to keep the water in the heat storage tank at a constant temperature according to the set temperature regardless of the operation state of the heat source indoor units 32a and 32b.
本実施の形態において、室外機21と、室内機22a及び22bと、熱源機31と、熱源用室内機32a及び32bとは、管理装置10の管理対象となる機器である。このため、以降では、室外機21と、室内機22a及び22bと、熱源機31と、熱源用室内機32a及び32bとを合わせて管理対象の各機器又は単に各機器という。ここで、管理対象の各機器は、一律の交流電源ではなく、それぞれに異なった電源により動作する。つまり、管理対象の各機器は、それぞれ、例えば、AC200V単相、AC200V3相、又はAC400V3相等といった別々の電源規格に対応しているため、それぞれ異なる電源線に接続されている。
In the present embodiment, the outdoor unit 21, the indoor units 22a and 22b, the heat source unit 31, and the heat source indoor units 32a and 32b are devices to be managed by the management apparatus 10. Therefore, hereinafter, the outdoor unit 21, the indoor units 22a and 22b, the heat source unit 31, and the heat source indoor units 32a and 32b are collectively referred to as devices to be managed or simply as devices. Here, each device to be managed is operated by a different power source instead of a uniform AC power source. That is, each device to be managed corresponds to different power supply standards such as AC200V single phase, AC200V3 phase, AC400V3 phase, etc., and is connected to different power supply lines.
図1に示すように、室外機21は、室外機用電源線210を介して電源300aに接続されており、室内機22a及び22bは、室内機用電源線220を介して電源300bに接続されている。熱源機31は、熱源機用電源線230を介して電源300cに接続されており、熱源用室内機32a及び32bは、熱源室内機用電源線240を介して電源300dに接続されている。
As shown in FIG. 1, the outdoor unit 21 is connected to a power source 300a via an outdoor unit power line 210, and the indoor units 22a and 22b are connected to a power source 300b via an indoor unit power line 220. ing. The heat source unit 31 is connected to the power source 300c via the heat source unit power line 230, and the heat source indoor units 32a and 32b are connected to the power source 300d via the heat source indoor unit power line 240.
また、空気調和システム100は、電力量計40a~40bと、パルス入力装置50a及びパルス入力装置50bと、を有している。電力量計40aは室外機用電源線210に接続され、電力量計40bは室内機用電源線220に接続されている。電力量計40cは熱源機用電源線230に接続され、電力量計40dは熱源室内機用電源線240に接続されている。
Further, the air conditioning system 100 includes watt-hour meters 40a to 40b, a pulse input device 50a, and a pulse input device 50b. The watt hour meter 40 a is connected to the outdoor unit power line 210, and the watt hour meter 40 b is connected to the indoor unit power line 220. The watt hour meter 40c is connected to the heat source unit power line 230, and the watt hour meter 40d is connected to the heat source indoor unit power line 240.
電力量計40aは、パルス信号線250aによりパルス入力装置50aと接続されている。電力量計40bは、パルス信号線250bによりパルス入力装置50aと接続されている。電力量計40cは、パルス信号線250cによりパルス入力装置50bと接続されている。電力量計40dは、パルス信号線250dによりパルス入力装置50bと接続されている。
The watt-hour meter 40a is connected to the pulse input device 50a by a pulse signal line 250a. The watt hour meter 40b is connected to the pulse input device 50a by a pulse signal line 250b. The watt-hour meter 40c is connected to the pulse input device 50b by a pulse signal line 250c. The watt-hour meter 40d is connected to the pulse input device 50b by a pulse signal line 250d.
電力量計40a~40bは、電力量を示すパルス信号を発信するパルス発信機能を有している。電力量計40a及び電力量計40bは、電力量が例えば1kWhに設定される基準値を超えたときに、パルス信号をパルス入力装置50aへ出力するものである。電力量計40c及び電力量計40dは、電力量が基準値を超えたときに、パルス信号をパルス入力装置50bへ出力するものである。
The watt-hour meters 40a to 40b have a pulse transmission function for transmitting a pulse signal indicating the electric energy. The watt-hour meter 40a and the watt-hour meter 40b output a pulse signal to the pulse input device 50a when the power amount exceeds a reference value set to, for example, 1 kWh. The watt-hour meter 40c and the watt-hour meter 40d output a pulse signal to the pulse input device 50b when the power amount exceeds a reference value.
パルス入力装置50a及びパルス入力装置50bは、それぞれ、パルス信号を入力する複数の入力ポート(図示せず)を有している。本実施の形態において、パルス入力装置50a及びパルス入力装置50bは、それぞれ、少なくとも2つの入力ポートを有している。よって、パルス入力装置50aは、電力量計40a及び電力量計40bから出力されるパルス信号を取り込むことができる。また、パルス入力装置50bは、電力量計40c及び電力量計40dから出力されるパルス信号を取り込むことができる。
Each of the pulse input device 50a and the pulse input device 50b has a plurality of input ports (not shown) for inputting pulse signals. In the present embodiment, each of the pulse input device 50a and the pulse input device 50b has at least two input ports. Therefore, the pulse input device 50a can take in the pulse signals output from the watt-hour meter 40a and the watt-hour meter 40b. Further, the pulse input device 50b can take in pulse signals output from the watt-hour meter 40c and the watt-hour meter 40d.
パルス入力装置50aは、電力量計40a及び電力量計40bから出力されたパルス信号をカウントすることで、室内機22a及び22b等の消費電力量の積算を行うものである。パルス入力装置50bは、電力量計40c及び電力量計40dから出力されたパルス信号をカウントすることで、熱源機31等の消費電力量の積算を行うものである。すなわち、パルス入力装置50a及びパルス入力装置50bは、電力量計40a~40dからのパルス信号を積算して各機器それぞれの消費電力量を演算するものである。
The pulse input device 50a counts the pulse signals output from the watt-hour meter 40a and the watt-hour meter 40b, thereby integrating the power consumption of the indoor units 22a and 22b and the like. The pulse input device 50b counts the pulse signals output from the watt hour meter 40c and the watt hour meter 40d, and thereby integrates the power consumption amount of the heat source unit 31 and the like. That is, the pulse input device 50a and the pulse input device 50b integrate the pulse signals from the watt hour meters 40a to 40d to calculate the power consumption amount of each device.
管理装置10、室外機21、室内機22a、室内機22b、熱源機31、熱源用室内機32a、熱源用室内機32b、パルス入力装置50a、及びパルス入力装置50bは、伝送線200により接続されている。伝送線200は、空気調和システム100の専用の伝送線である。
The management device 10, the outdoor unit 21, the indoor unit 22a, the indoor unit 22b, the heat source unit 31, the heat source indoor unit 32a, the heat source indoor unit 32b, the pulse input device 50a, and the pulse input device 50b are connected by a transmission line 200. ing. The transmission line 200 is a dedicated transmission line for the air conditioning system 100.
伝送線200によって接続された各機器は、それぞれ、伝送線200を介して、各種のデータを含む信号の通信を行うことができる。例えば、管理装置10は、管理対象の各機器に対して、設定操作の内容に基づく操作指令の信号等を送信するものである。ここで、伝送線200によって接続された各機器は、例えば、通信における固有の番号及びアドレス等を有しており、区別されているものとする。また、伝送線200によって接続された各機器は、通信を行う際、送信先及び送信元のアドレスのデータを含めた信号を送信するものとする。
Each device connected by the transmission line 200 can communicate signals including various data via the transmission line 200. For example, the management device 10 transmits an operation command signal or the like based on the content of the setting operation to each device to be managed. Here, each device connected by the transmission line 200 has, for example, a unique number and address in communication and is distinguished. In addition, each device connected by the transmission line 200 transmits a signal including data of a transmission destination and a transmission source address when performing communication.
室外機21は、室外機用電源線210を通じ、電力量計40aを介して、電源300aに接続されている。室外機21は、電源300aから供給される電力により動作するものである。室内機22a及び室内機22bは、室内機用電源線220を通じ、電力量計40bを介して、電源300bに接続されている。室内機22a及び室内機22bは、電源300bから供給される電力により動作するものである。
The outdoor unit 21 is connected to the power source 300a through the outdoor unit power line 210 and the watt hour meter 40a. The outdoor unit 21 is operated by electric power supplied from the power supply 300a. The indoor unit 22a and the indoor unit 22b are connected to the power source 300b through the indoor unit power line 220 and the watt hour meter 40b. The indoor unit 22a and the indoor unit 22b are operated by electric power supplied from the power supply 300b.
熱源機31は、熱源機用電源線230を通じ、電力量計40cを介して、電源300cに接続されている。熱源機31は、電源300cから供給される電力により動作するものである。熱源用室内機32a及び熱源用室内機32bは、熱源室内機用電源線240を通じ、電力量計40dを介して、電源300dに接続されている。熱源用室内機32a及び熱源用室内機32bは、電源300dから供給される電力により動作するものである。
The heat source unit 31 is connected to the power source 300c through the heat source unit power line 230 and the watt hour meter 40c. The heat source device 31 is operated by electric power supplied from the power source 300c. The heat source indoor unit 32a and the heat source indoor unit 32b are connected to the power source 300d through the heat source indoor unit power line 240 and the watt hour meter 40d. The heat source indoor unit 32a and the heat source indoor unit 32b are operated by electric power supplied from the power supply 300d.
管理装置10は、管理者等による設定操作を受け付ける入力部10Aを有している。入力部10Aは、操作ボタン等を含んで構成してもよく、マウス又はキーボード等であってもよい。また、入力部10Aは、タッチパネル等によって構成してもよい。さらに、入力部10Aは、携帯電話、スマートフォン、タブレットPC、又はノートPC等のような携帯端末との通信を行う通信機能を有するように構成し、携帯端末からの設定操作を受け付けるように構成してもよい。
The management device 10 has an input unit 10A that accepts a setting operation by an administrator or the like. The input unit 10A may include an operation button or the like, and may be a mouse or a keyboard. The input unit 10A may be configured with a touch panel or the like. Further, the input unit 10A is configured to have a communication function for communicating with a mobile terminal such as a mobile phone, a smartphone, a tablet PC, or a notebook PC, and configured to accept a setting operation from the mobile terminal. May be.
管理装置10は、管理者等の操作を受けて初期設定処理等の設定処理を行うものである。また、管理装置10は、第1空気調和装置20及び第2空気調和装置30の運転状態を示す運転情報と消費電力量を示す電力量情報と収集して管理するものである。すなわち、管理装置10は、室外機21、室内機22a、及び室内機22bの運転情報及び消費電力量を、パルス入力装置50aから伝送線200を介して取得するものである。また、管理装置10は、熱源機31、熱源用室内機32a、及び熱源用室内機32bの運転情報及び消費電力量を、パルス入力装置50bから伝送線200を介して取得するものである。
The management device 10 performs setting processing such as initial setting processing in response to an operation by an administrator or the like. Moreover, the management apparatus 10 collects and manages the operation information which shows the operation state of the 1st air conditioning apparatus 20 and the 2nd air conditioning apparatus 30, and the electric energy information which shows power consumption. That is, the management apparatus 10 acquires the operation information and power consumption of the outdoor unit 21, the indoor unit 22a, and the indoor unit 22b from the pulse input device 50a via the transmission line 200. In addition, the management device 10 acquires operation information and power consumption of the heat source unit 31, the heat source indoor unit 32a, and the heat source indoor unit 32b from the pulse input device 50b via the transmission line 200.
さらに、管理装置10は、管理対象の各機器の運転情報及び電力量情報から、管理対象の各機器それぞれの消費電力量を予測するものである。そして、管理装置10は、管理対象の各機器それぞれの消費電力量を予測の結果をもとに、各機器全体での消費電力量の予測値である総予測電力値を求めるものである。また、管理装置10は、総予測電力値が電力目標値以上であれば、管理対象の各機器に対してデマンド制御を実施し、第1空気調和装置20及び第2空気調和装置30の空調能力を制限するものである。
Furthermore, the management apparatus 10 predicts the power consumption amount of each device to be managed from the operation information and power amount information of each device to be managed. And the management apparatus 10 calculates | requires the total prediction electric power value which is the predicted value of the electric energy consumption in each whole apparatus based on the result of prediction of the electric power consumption of each apparatus of management object. In addition, if the total predicted power value is equal to or greater than the power target value, the management device 10 performs demand control on each device to be managed, and the air conditioning capability of the first air conditioner 20 and the second air conditioner 30 This is a limitation.
図2は、図1の管理装置10の機能的構成を示すブロックである。管理装置10は、室外機21と、室内機22a及び22bと、熱源機31と、熱源用室内機32a及び32bとを個別に制御することができる集中コントローラである。管理装置10は、管理対象の各機器を監視すると共に、管理対象の各機器に対する操作を受け付けるものである。また、管理装置10は、スケジュール管理機能と、管理対象の各機器の運転状態及び電力量情報等のデータを管理する機能と、有している。
FIG. 2 is a block diagram showing a functional configuration of the management apparatus 10 of FIG. The management apparatus 10 is a centralized controller that can individually control the outdoor unit 21, the indoor units 22a and 22b, the heat source unit 31, and the heat source indoor units 32a and 32b. The management apparatus 10 monitors each managed device and accepts an operation on each managed device. Moreover, the management apparatus 10 has a schedule management function and a function for managing data such as an operation state and power amount information of each device to be managed.
図2に示すように、管理装置10は、通信手段101と、運転情報収集手段102と、運転情報記憶手段103と、運転情報設定手段104と、運転情報処理手段105と、を有している。また、管理装置10は、電力量情報収集手段106と、電力量情報記憶手段107と、電力量情報設定手段108と、電力量情報処理手段109と、を有している。さらに、管理装置10は、制御内容設定手段110と、制御内容処理手段111と、制御内容記憶手段112と、運転情報変更手段113と、変更記憶手段114と、を有している。
As illustrated in FIG. 2, the management apparatus 10 includes a communication unit 101, an operation information collection unit 102, an operation information storage unit 103, an operation information setting unit 104, and an operation information processing unit 105. . In addition, the management apparatus 10 includes a power amount information collecting unit 106, a power amount information storage unit 107, a power amount information setting unit 108, and a power amount information processing unit 109. Furthermore, the management device 10 includes a control content setting unit 110, a control content processing unit 111, a control content storage unit 112, an operation information change unit 113, and a change storage unit 114.
通信手段101は、管理装置10を伝送線200と接続するためのものである。通信手段101は、伝送線200に流れる信号を受信して、デマンド制御に必要なデータを抽出するものである。すなわち、通信手段101は、伝送線200に流れる一般的な電圧信号を解析して、通信信号として取り込む機能を有している。また、通信手段101は、通信信号を電圧に変換する機能等を有している。
The communication unit 101 is for connecting the management apparatus 10 to the transmission line 200. The communication unit 101 receives a signal flowing through the transmission line 200 and extracts data necessary for demand control. That is, the communication unit 101 has a function of analyzing a general voltage signal flowing through the transmission line 200 and capturing it as a communication signal. The communication unit 101 has a function of converting a communication signal into a voltage.
運転情報収集手段102は、通信手段101が抽出したデータから、運転状態に係わるデータを運転情報として収集する処理を行い、収集した運転情報を運転情報記憶手段103に記憶させるものである。運転情報収集手段102は、運転情報の収集処理を一定の時間間隔で行うために、タイマ等の計時手段を有している。ここで、運転状態に係わるデータは、例えば、管理対象の各機器の発停、運転モード、設定された風速、設定された風向、設定温度、及びセーブ運転情報等を示すデータである。つまり、運転情報収集手段102は、管理対象の各機器がどのような運転状態にあるかを示す情報を運転情報として収集するものである。運転情報収集手段102は、運転状態及び設定温度等のデータを管理対象の機器ごとに収集するものである。
The driving information collection unit 102 performs processing for collecting data related to the driving state as driving information from the data extracted by the communication unit 101, and stores the collected driving information in the driving information storage unit 103. The driving information collecting means 102 has time measuring means such as a timer in order to perform driving information collecting processing at regular time intervals. Here, the data relating to the operation state is data indicating, for example, the start / stop of each device to be managed, the operation mode, the set wind speed, the set wind direction, the set temperature, and the save operation information. In other words, the operation information collection unit 102 collects information indicating the operation state of each managed device as operation information. The operation information collection unit 102 collects data such as operation state and set temperature for each device to be managed.
また、運転情報収集手段102は、熱源機31の発停及び設定水温等のデータと、熱源用室内機32a及び32bの発停及び設定温度等のデータとを運転情報として収集するものである。運転情報記憶手段103は、運転情報収集手段102において収集された運転情報等を個別に記憶し保存するものである。
The operation information collecting means 102 collects data such as the start / stop of the heat source unit 31 and the set water temperature and the data such as the start / stop of the heat source indoor units 32a and 32b and the set temperature as operation information. The driving information storage means 103 stores and saves the driving information collected by the driving information collection means 102 individually.
運転情報設定手段104は、管理対象の各機器を操作するための設定手段であり、入力部10Aでの操作内容に関する設定処理を行うものである。運転情報設定手段104は、管理対象の各機器の発停又は設定温度等に関する入力操作を受け付けて設定するものである。管理者等は、入力部10Aを操作することにより、運転情報設定手段104を介して、管理対象の各機器の発停及び設定温度等を操作することができる。また、運転情報設定手段104は、運転情報収集手段102において収集された運転情報を管理対象の各機器に対応づけるための管理情報を設定する機能を有している。
The operation information setting unit 104 is a setting unit for operating each device to be managed, and performs a setting process regarding the operation content in the input unit 10A. The operation information setting means 104 receives and sets an input operation relating to the start / stop of each device to be managed or a set temperature. The administrator or the like can operate the start / stop of each device to be managed, the set temperature, and the like via the operation information setting unit 104 by operating the input unit 10A. The driving information setting unit 104 has a function of setting management information for associating the driving information collected by the driving information collecting unit 102 with each device to be managed.
運転情報処理手段105は、運転情報設定手段104において設定された管理情報の内容に基づき、運転情報記憶手段103に記憶されている運転情報を管理対象の各機器に割り当て、管理対象の機器ごとの運転情報を求めるものである。そして、運転情報処理手段105は、割り当て処理後における管理対象の機器ごとの運転情報を、再度運転情報記憶手段103に記憶させるものである。運転情報処理手段105は、運転情報設定手段104で設定された内容と、運転情報収集手段102において取得された実際の管理対象の各機器の運転状態等を示す運転情報とを比較し、運転情報を変更させるか否かを判断するものである。より具体的に、運転情報処理手段105は、例えば、ファンの風量を弱風に変更するか否か、強制的に圧縮機を停止させるか否か等を判断するものである。また、運転情報処理手段105は、冷房運転時において、設定温度を上げるか否かを判断し、暖房運転時において、設定温度を下げるか否かを判断するものである。
The driving information processing unit 105 assigns the driving information stored in the driving information storage unit 103 to each device to be managed based on the contents of the management information set by the driving information setting unit 104, and for each device to be managed. It asks for driving information. The driving information processing unit 105 stores the driving information for each managed device after the allocation process in the driving information storage unit 103 again. The driving information processing unit 105 compares the content set by the driving information setting unit 104 with the driving information indicating the driving state of each device that is actually managed and acquired by the driving information collecting unit 102. It is determined whether or not to change. More specifically, the operation information processing unit 105 determines, for example, whether to change the air volume of the fan to a weak wind, whether to forcibly stop the compressor, and the like. The operation information processing means 105 determines whether or not to increase the set temperature during the cooling operation, and determines whether or not to decrease the set temperature during the heating operation.
電力量情報収集手段106は、通信手段101が抽出したデータに含まれるパルス入力装置50a及び50bから出力されたデータを電力量情報として収集する処理を行うものである。そして、電力量情報収集手段106は、収集した電力量情報を電力量情報記憶手段107に記憶させるものである。電力量情報収集手段106は、運転情報の収集処理を一定の時間間隔で行うために、タイマ等の計時手段を有している。電力量情報記憶手段107は、運転情報収集手段102において収集された運転情報等を個別に記憶し保存するものである。
The power amount information collecting unit 106 performs processing for collecting data output from the pulse input devices 50a and 50b included in the data extracted by the communication unit 101 as power amount information. The power amount information collecting unit 106 stores the collected power amount information in the power amount information storage unit 107. The electric energy information collecting means 106 has time measuring means such as a timer in order to perform the operation information collecting process at regular time intervals. The electric energy information storage means 107 is for individually storing and storing the operation information collected by the operation information collection means 102.
電力量情報設定手段108は、入力部10Aでの操作内容に関する設定処理を行うものである。電力量情報設定手段108は、電力量情報が、管理対象の各機器のうちのどの機器の情報であるかを示す割当情報を設定するものである。また、電力量情報設定手段108は、電力量情報の使用又は未使用を示す情報を設定したり、電力量情報に対する微調整を行ったりすることができる。
The power amount information setting means 108 performs setting processing related to the operation content at the input unit 10A. The power amount information setting unit 108 sets allocation information indicating which device among the devices to be managed is the power amount information. In addition, the power amount information setting unit 108 can set information indicating whether the power amount information is used or not used, and can finely adjust the power amount information.
電力量情報処理手段109は、電力量情報設定手段108において設定された割当情報に基づいて、電力量情報を管理対象の機器ごとに割り当てる処理を行うものである。すなわち、電力量情報処理手段109は、電力量情報設定手段108において設定された内容をもとに、電力量情報収集手段106において取得された電力量情報を管理対象の各機器に割り当て、管理対象の機器ごとの消費電力量を求めるものである。そして、電力量情報処理手段109は、管理対象の各機器それぞれの消費電力量を電力量情報記憶手段107に記憶させるものである。
The power amount information processing unit 109 performs processing for allocating the power amount information for each device to be managed based on the allocation information set by the power amount information setting unit 108. That is, the power amount information processing unit 109 assigns the power amount information acquired by the power amount information collection unit 106 to each management target device based on the contents set by the power amount information setting unit 108, and The power consumption for each device is obtained. The power amount information processing unit 109 stores the power consumption amount of each managed device in the power amount information storage unit 107.
制御内容設定手段110は、管理対象の各機器への制御内容の優先順位を設定処理と、デマンド制御に関する閾値を設定処理とを行うものである。また、制御内容設定手段110は、管理対象の各機器の設定温度の変更又は運転停止等といったデマンド制御の内容を設定するものである。デマンド制御に関する閾値には、デマンド制御を開始する判定基準となる電力目標値等がある。そして、制御内容設定手段110は、設定内容を制御内容記憶手段112に記憶させるものである。優先順位は、第1空気調和装置20と第2空気調和装置30との間に設定してもよく、管理対象の機器ごとに設定してもよい。
The control content setting means 110 performs processing for setting the priority of control content for each managed device and processing for setting a threshold value for demand control. Further, the control content setting means 110 sets the content of demand control such as changing the set temperature of each device to be managed or stopping the operation. The threshold for demand control includes a power target value that is a criterion for starting demand control. The control content setting unit 110 stores the setting content in the control content storage unit 112. The priority order may be set between the first air conditioner 20 and the second air conditioner 30, or may be set for each device to be managed.
優先順位の設定は、圧縮機の運転容量、ファンの能力、圧縮膨張方式である第1空気調和装置20の特性、及びセントラル方式である第2空気調和装置30の特性などを考慮して設定するとよい。例えば、室内機22aと熱源用室内機32aとが同一の空調対象空間を空調するような場合、空調対象空間の温度と設定温度との温度差ΔTに応じて、室内機22aと熱源用室内機32aとの優先順位を変更するようにしてもよい。例えば、温度差ΔTが一定の温度よりも小さい場合は、室内機22aのデマンド制御の優先順位を高くし、温度差ΔTが一定の温度よりも大きい場合は、熱源用室内機32aのデマンド制御の優先順位を高くするようにしてもよい。このようにすれば、温度差ΔTが一定の温度よりも小さい場合、熱源用室内機32aによって現在の温度を少なくとも維持しながら、室内機22aの能力の制限を大きくするといったデマンド制御を行うことができる。また、温度差ΔTが一定の温度よりも大きい場合は、室内機22aの能力をなるべく制限せずに、熱源用室内機32aの能力の制限を大きくするといったデマンド制御を行うことができる。このため、空気調和システム100によれば、快適性を損なうことなく、省エネルギー化を図ることができる。
The priority is set in consideration of the operating capacity of the compressor, the fan capacity, the characteristics of the first air conditioner 20 that is the compression / expansion system, the characteristics of the second air conditioner 30 that is the central system, and the like. Good. For example, when the indoor unit 22a and the heat source indoor unit 32a air-condition the same air-conditioning target space, the indoor unit 22a and the heat source indoor unit are set according to the temperature difference ΔT between the temperature of the air-conditioning target space and the set temperature. You may make it change the priority with 32a. For example, when the temperature difference ΔT is smaller than a certain temperature, the priority of the demand control of the indoor unit 22a is increased, and when the temperature difference ΔT is larger than the certain temperature, the demand control of the heat source indoor unit 32a is performed. You may make it make a priority high. In this way, when the temperature difference ΔT is smaller than a certain temperature, it is possible to perform demand control such as increasing the capacity limit of the indoor unit 22a while maintaining at least the current temperature by the heat source indoor unit 32a. it can. Further, when the temperature difference ΔT is larger than a certain temperature, it is possible to perform demand control such as increasing the limit of the capacity of the indoor unit for heat source 32a without limiting the capacity of the indoor unit 22a as much as possible. For this reason, according to the air conditioning system 100, energy saving can be achieved without impairing comfort.
制御内容設定手段110は、入力部10Aでの操作内容に関する設定処理を行うものである。制御内容設定手段110は、例えば、時間毎、日にち毎、及び曜日毎に、デマンド制御に関するデータを管理するスケジュール管理機能を有している。すなわち、制御内容設定手段110は、時間毎、日にち毎、及び曜日毎の少なくとも1つに関連づけて優先順位及び電力目標値の設定内容を登録する機能を有している。また、制御内容設定手段110は、優先順位の設定内容及び電力目標値の設定内容のうちの少なくとも1つを、時間毎、日にち毎、及び曜日毎の少なくとも1つに応じて変更する機能を有している。したがって、管理者等は、制御内容設定手段110により、空調対象空間の日照時間、勤務時間、及び勤務日等に応じて、管理対象の各機器の優先順位を設定することができる。そして、制御内容設定手段110設定された各機器の優先順位に従って、デマンド制御の内容を調整することができる。もっとも、制御内容設定手段110は、デマンド制御に関する各種の情報を、時間毎、日にち毎、及び曜日毎の少なくとも1つに関連づけて変更する機能を有していてもよい。
The control content setting unit 110 performs setting processing related to the operation content at the input unit 10A. The control content setting means 110 has a schedule management function for managing data related to demand control, for example, every hour, every day, and every day of the week. That is, the control content setting unit 110 has a function of registering the setting contents of the priority order and the power target value in association with at least one of each hour, each day, and each day of the week. The control content setting means 110 has a function of changing at least one of the priority order setting content and the power target value setting content according to at least one of every hour, every day, and every day of the week. is doing. Therefore, the administrator or the like can set the priority order of each device to be managed by the control content setting means 110 according to the sunshine hours, working hours, working days, etc. of the air conditioning target space. Then, the content of demand control can be adjusted according to the priority order of each device set by the control content setting means 110. However, the control content setting unit 110 may have a function of changing various information related to demand control in association with at least one of time, date, and day of the week.
制御内容処理手段111は、各機能を実現させるための処理内容の手順をプログラムとして予め有している。すなわち、制御内容処理手段111は、プログラムを実行することで各機能を実現するものである。制御内容処理手段111は、運転情報処理手段105で処理された運転情報と、電力量情報処理手段109で処理された電力量情報と、制御内容設定手段110において設定された情報とにより、運転情報を変更する制御を行うものである。また、制御内容処理手段111は、現在の制御内容を制御内容記憶手段112に記憶させるものである。
The control content processing means 111 has a processing content procedure for realizing each function in advance as a program. That is, the control content processing unit 111 implements each function by executing a program. The control content processing unit 111 uses the driving information processed by the driving information processing unit 105, the power amount information processed by the power amount information processing unit 109, and the information set by the control content setting unit 110, as driving information. The control which changes is performed. The control content processing unit 111 stores the current control content in the control content storage unit 112.
例えば、制御内容処理手段111は、管理対象の各機器それぞれの運転情報、及び管理対象の各機器それぞれの消費電力量の過去数分間のデータから、同じ運転状態が続いた場合の各機器それぞれの一定期間後の消費電力量を予測するように構成する。ここで、過去数分間は、デマンド時限に相当し、例えば30分間に設定される。また、一定期間は、例えば1日に設定される。そして、制御内容処理手段111は、管理対象の機器ごとの消費電力量の予測値の合計である総予測電力値が、制御内容設定手段110で設定された電力量目標値を超えそうな場合に、制御内容設定手段110で設定されたデマンド制御の内容に従い、各機器に対してデマンド制御を実施する。
For example, the control content processing unit 111 uses the operation information for each device to be managed and the data for the past several minutes of the power consumption of each device to be managed for each device when the same operation state continues. The power consumption after a certain period is predicted. Here, the past several minutes corresponds to a demand time limit, and is set to, for example, 30 minutes. Further, the certain period is set to one day, for example. Then, when the total predicted power value, which is the sum of the predicted power consumption values for each managed device, is likely to exceed the power amount target value set by the control content setting unit 110, the control content processing unit 111 Then, according to the content of the demand control set by the control content setting means 110, the demand control is performed on each device.
実際には、運転情報変更手段113が、制御内容処理手段111における判定の結果をもとに、運転情報等を変更する処理を行い、変更した運転情報を変更記憶手段114に記憶させる。そして、管理装置10は、運転情報変更手段113において変更された内容を、通信手段101を介して伝送線200に送信し、管理対象の各機器の運転状態を変更する。
Actually, the driving information changing unit 113 performs a process of changing the driving information based on the determination result in the control content processing unit 111 and stores the changed driving information in the change storage unit 114. And the management apparatus 10 transmits the content changed in the driving information change means 113 to the transmission line 200 via the communication means 101, and changes the driving | running state of each apparatus of management object.
ここで、管理装置10は、上記の各機能を実現する回路デバイスなどのハードウェアで実現することもできるし、例えばDSP(Digital Signal Processor)等のマイコン又はCPU(Central Processing Unit)等の演算装置上で実行されるソフトウェアとして実現することもできる。また、運転情報記憶手段103、電力量情報記憶手段107、制御内容記憶手段112、及び変更記憶手段114は、フラッシュメモリ等のPROM(Programmable Read Only Memory)又はHDD(Hard Disk Drive)等により構成することができる。もっとも、運転情報記憶手段103、電力量情報記憶手段107、制御内容記憶手段112、及び変更記憶手段114は、1つの記憶手段により構成してもよい。
Here, the management apparatus 10 can also be realized by hardware such as a circuit device that realizes each of the functions described above, for example, a calculation device such as a microcomputer such as a DSP (Digital Signal Processor) or a CPU (Central Processing Unit). It can also be realized as software executed above. The operation information storage means 103, the electric energy information storage means 107, the control content storage means 112, and the change storage means 114 are configured by a PROM (Programmable Read Only Memory) such as a flash memory or a HDD (Hard Disk Drive). be able to. However, the operation information storage unit 103, the power amount information storage unit 107, the control content storage unit 112, and the change storage unit 114 may be configured by one storage unit.
図3は、図2の管理装置10によるデマンド制御の動作を示すフローチャートである。上記のように構成された空気調和システム100は、各機器の運転情報と電力量の情報とを管理装置10が収集することで、それぞれの機器に連携したデマンド制御を実現する。ここで、図3を参照して、管理装置10が行うデマンド制御の処理手順について説明する。
FIG. 3 is a flowchart showing an operation of demand control by the management apparatus 10 of FIG. The air conditioning system 100 configured as described above realizes demand control in cooperation with each device by the management device 10 collecting operation information and power amount information of each device. Here, with reference to FIG. 3, a processing procedure of demand control performed by the management apparatus 10 will be described.
まず、管理装置10によるデマンド制御の概要を説明する。管理装置10は、電源起動後、管理者等の操作を受けて、初期設定処理を行う(ステップS101)。そして、初期設定完了後、管理装置10は、以下の処理を実行する。
First, an outline of demand control by the management apparatus 10 will be described. After the power is turned on, the management apparatus 10 receives an operation from an administrator or the like and performs an initial setting process (step S101). Then, after the initial setting is completed, the management apparatus 10 executes the following processing.
管理装置10は、管理対象の各機器の運転情報を取得して記憶させる運転情報取得処理を行う(ステップS102)。また、管理装置10は、パルス入力装置50a及び50bから、管理対象の各機器の電力量情報を取得して記憶させる電力量情報取得処理を行う(ステップS103)。
The management apparatus 10 performs an operation information acquisition process for acquiring and storing the operation information of each device to be managed (step S102). Further, the management device 10 performs power amount information acquisition processing for acquiring and storing the power amount information of each device to be managed from the pulse input devices 50a and 50b (step S103).
次に、管理装置10は、ステップS102で取得した運転情報とステップS103で取得した電力量情報とから、管理対象の各機器それぞれの消費電力量を予測し、予測の結果を予測値として求める(ステップS104)。そして、管理装置10は、ステップS104で求めた予測値の合計から、各機器全体での消費電力量の予測値である総予測電力値を求める(ステップS105)。
Next, the management apparatus 10 predicts the power consumption amount of each device to be managed from the operation information acquired in step S102 and the power amount information acquired in step S103, and obtains a prediction result as a predicted value ( Step S104). And the management apparatus 10 calculates | requires the total prediction electric power value which is the prediction value of the power consumption amount in each whole apparatus from the sum total of the prediction value calculated | required by step S104 (step S105).
次いで、管理装置10は、ステップS105で求めた総予測電力値が、ステップS101で設定された電力目標値より小さい場合(ステップS106/No)、現状の状態を維持し、ステップS102へ戻る。一方、管理装置10は、総予測電力値が電力目標値以上の場合(ステップS106/Yes)、ステップS101で設定された優先順位に従って、各機器に対するデマンド制御を実施する(ステップS107)。そして、管理装置10は、ステップS102~S107の一連の動作を繰り返し実施する。
Next, when the total predicted power value obtained in step S105 is smaller than the power target value set in step S101 (No in step S106), the management apparatus 10 maintains the current state and returns to step S102. On the other hand, when the total predicted power value is equal to or higher than the power target value (step S106 / Yes), the management apparatus 10 performs demand control on each device according to the priority set in step S101 (step S107). Then, the management apparatus 10 repeatedly performs a series of operations in steps S102 to S107.
続いて、管理装置10によるデマンド制御を、図3に示すステップ毎に具体的に説明する。まず、初期設定処理(ステップS101)の処理手順の詳細について説明する。制御内容設定手段110は、初期設定処理において、デマンド制御に関する設定操作を受け付け、受け付けた設定内容を登録する。すなわち、制御内容設定手段110は、管理対象の各機器の登録と、パルス入力装置50a及び50bの登録と、パルス入力装置50a及び50bの入力ポートから取得した電力量がどの機器の電力量であるかを示す割当情報の登録と、を実施する。また、制御内容設定手段110は、デマンド制御を実施するタイミングを決める電力目標値の登録、デマンド制御を実施する各機器間の優先順位の登録、及びデマンド制御の内容の登録を実施する。電力目標値は、1時間、1日、1週間、又は1ヶ月といった一定期間ごとに設定登録できるようにするとよい。さらに、制御内容設定手段110は、スケジュール管理機能における日時設定の登録等を実施する。
Subsequently, the demand control by the management apparatus 10 will be specifically described for each step shown in FIG. First, details of the procedure of the initial setting process (step S101) will be described. In the initial setting process, the control content setting unit 110 receives a setting operation related to demand control, and registers the received setting content. In other words, the control content setting unit 110 registers the devices to be managed, registers the pulse input devices 50a and 50b, and the amount of power acquired from the input ports of the pulse input devices 50a and 50b. The allocation information indicating whether or not is registered. In addition, the control content setting means 110 performs registration of a power target value that determines the timing for performing demand control, registration of priority between devices that perform demand control, and registration of demand control content. The power target value may be set and registered at regular intervals such as one hour, one day, one week, or one month. Furthermore, the control content setting unit 110 performs registration of date and time settings in the schedule management function.
制御内容設定手段110が上記の設定登録を行うことにより、管理装置10は、管理対象隣る各機器の状態を監視し、デマンド制御を自動的に実施する。なお、スケジュール管理機能における日時設定等は、初期設定処理において必ず行われる処理ではない。このため、スケジュール管理機能における日時設定等が行われなかった場合、管理装置10は、初期設定処理で設定された内容を変更せずに、デマンド制御の動作を継続する。
When the control content setting means 110 performs the above setting registration, the management apparatus 10 monitors the state of each device adjacent to the management target and automatically performs demand control. The date and time setting in the schedule management function is not necessarily performed in the initial setting process. For this reason, when the date / time setting or the like in the schedule management function is not performed, the management apparatus 10 continues the demand control operation without changing the contents set in the initial setting process.
次に、運転情報取得処理(ステップS102)の処理手順の詳細ついて説明する。ステップS101において管理装置10の管理対象となった各機器は、運転操作すなわち発停又は設定温度等の操作が行われた場合、管理装置10に対して運転状態が変化したことを示すデータを送信する。管理装置10は、運転情報収集手段102により、管理対象の各機器から受信したデータから運転情報を取得し、取得した運転情報を運転情報記憶手段103に保存する。
Next, the details of the procedure of the operation information acquisition process (step S102) will be described. In step S101, each device that is a management target of the management device 10 transmits data indicating that the operation state has changed to the management device 10 when an operation such as start / stop or set temperature is performed. To do. The management device 10 acquires the driving information from the data received from each managed device by the driving information collecting unit 102 and stores the acquired driving information in the driving information storage unit 103.
次いで、電力量情報取得処理(ステップS103)の処理手順の詳細について説明する。ステップS101で管理装置10の管理対象となったパルス入力装置50a及び50bに対して、電力量情報収集手段106は、定期的に電力量のモニタを実施する。すなわち、電力量情報収集手段106は、例えば1分毎に、パルス入力装置50a及び50bへ電力量の出力を要求する。そして、電力量情報収集手段106は、パルス入力装置50a及び50bからの電力量に関する応答データを電力量情報として収集する。次に、電力量情報処理手段109は、ステップS101で設定登録された割当情報に従って、電力量情報収集手段106が収集した電力量情報を管理対象の各機器に割り当て、各機器の電力量情報として電力量情報記憶手段107に保存する。
Next, details of the processing procedure of the electric energy information acquisition processing (step S103) will be described. The power amount information collecting unit 106 periodically monitors the power amount for the pulse input devices 50a and 50b that are the management targets of the management device 10 in step S101. That is, the power amount information collecting unit 106 requests the pulse input devices 50a and 50b to output the power amount, for example, every minute. Then, the electric energy information collecting unit 106 collects response data regarding the electric energy from the pulse input devices 50a and 50b as electric energy information. Next, the power amount information processing unit 109 allocates the power amount information collected by the power amount information collecting unit 106 to each device to be managed in accordance with the allocation information set and registered in step S101, and uses it as the power amount information of each device. It is stored in the electric energy information storage means 107.
次に、管理対象の各機器の消費電力量予測処理(ステップS104)の処理手順の詳細について説明する。制御内容処理手段111は、ステップS102で取得された運転情報と、ステップS103で取得された各機器の電力量情報とをもとに、例えば30分間といった過去数分間の電力量の積算の変化から、管理対象となる機器ごとの消費電力量を予測する。すなわち、制御内容処理手段111は、過去数分間の電力量の積算の変化から、現在の運転状態が続いた場合に、今後の一定期間において管理対象の各機器がどれぐらいの電力を消費するかを予測値として求める。一定期間は、例えば1日に設定される。そして、管理対象の各機器それぞれの消費電力量の予測値を制御内容記憶手段112に保存する。
Next, the details of the processing procedure of the power consumption prediction process (step S104) of each managed device will be described. Based on the operation information acquired in step S102 and the power amount information of each device acquired in step S103, the control content processing unit 111 detects the change in the accumulated power amount over the past several minutes such as 30 minutes. The power consumption for each device to be managed is predicted. That is, the control content processing unit 111 determines how much power will be consumed by each managed device over a certain period in the future when the current operating state continues from the change in the accumulated amount of power over the past several minutes. As a predicted value. The certain period is set to one day, for example. Then, the predicted value of the power consumption amount of each managed device is stored in the control content storage unit 112.
次に、管理対象の各機器全体での消費電力量予測処理(ステップS105)の処理手順の詳細ついて説明する。制御内容処理手段111は、ステップS104で取得した各機器ごとの消費電力量の予測値を合計し、各機器全体での今後の一定期間でどれくらい消費するかを予測する。つまり、制御内容処理手段111は、管理対象の機器ごとの消費電力量の予測値を合算して、各機器全体での消費電力量の予測値である総予測電力値を求める。そして、制御内容処理手段111は、求めた総予測電力値を制御内容記憶手段112に保存する。
Next, the details of the processing procedure of the power consumption prediction process (step S105) for each managed device as a whole will be described. The control content processing means 111 totals the predicted power consumption values for each device acquired in step S104, and predicts how much of the entire device will be consumed in a certain period in the future. That is, the control content processing unit 111 adds up the predicted power consumption values for each managed device to obtain a total predicted power value that is a predicted power consumption value for each device as a whole. Then, the control content processing unit 111 stores the obtained total predicted power value in the control content storage unit 112.
次に、総予測電力値と設定された電力目標値との比較処理(ステップS106)、及び各機器に対するデマンド制御(ステップS107)の手順の詳細ついて説明する。制御内容処理手段111は、ステップS105で求めた総予測電力値と、ステップS101で設定された電力量目標値と比較する(ステップS106)。
Next, the details of the comparison process (step S106) between the total predicted power value and the set power target value and the demand control (step S107) for each device will be described. The control content processing unit 111 compares the total predicted power value obtained in step S105 with the power amount target value set in step S101 (step S106).
ここで、制御内容処理手段111は、ステップS106の比較処理を、1時間単位の予測、1日単位の予測、及び1ヶ月単位の予測のうちの少なくとも2つを組み合わせて行うことができる。すなわち、1時間単位の予測の場合、制御内容処理手段111は、現在において予測した総予測電力値と1時間に対応づけて設定された電力目標値との比較処理を実施する。また、1日単位の予測の場合、制御内容処理手段111は、0時00分から現在までの電力量の積算値と、現在から次の0時00分までの消費電力量の予測値と合算して、1日単位の総予測電力値を求める。そして、制御内容処理手段111は、求めた1日単位の総予測電力値と、1日に対応づけて設定された電力目標値との比較処理を実施する。さらに、1か月単位の予測の場合、制御内容処理手段111は、精算日をあらかじめ設定しておき、精算日の翌日から現在までの電力量の積算値と、現在から精算日までの消費電力量の予測値とを合算して1ヶ月単位の総予測電力値を求める。そして、制御内容処理手段111は、求めた1ヶ月単位の総予測電力値と、一ヶ月に対応づけて設定された電力目標値との比較処理を行う。
Here, the control content processing means 111 can perform the comparison process in step S106 in combination with at least two of hourly prediction, daily prediction, and monthly prediction. That is, in the case of hourly prediction, the control content processing unit 111 performs a comparison process between the total predicted power value currently predicted and the power target value set in association with one hour. In addition, in the case of prediction in units of one day, the control content processing unit 111 adds the integrated value of the power amount from 0:00 to the present and the predicted value of the power consumption from the present to the next 0:00. Thus, the total predicted power value for each day is obtained. Then, the control content processing unit 111 performs a comparison process between the calculated total predicted power value for each day and the power target value set in association with the day. Further, in the case of prediction in units of one month, the control content processing unit 111 sets the settlement date in advance, the integrated value of the electric energy from the day after the settlement date to the present, and the power consumption from the present to the settlement date. The total predicted power value in units of one month is obtained by adding the predicted value of the quantity. Then, the control content processing unit 111 performs a comparison process between the obtained total predicted power value in units of one month and a power target value set in association with one month.
制御内容処理手段111は、総予測電力値が電力目標値未満である場合(ステップS106/No)、デマンド制御を行わず、ステップS102に戻る。一方、制御内容処理手段111は、上記の比較処理において、総予測電力値が電力目標値以上である場合(ステップS106/Yes)、ステップS101で設定された内容に従い、各機器に対してデマンド制御を実施する(ステップS107)。そして、管理装置10は、ステップS102~S107の一連の動作を繰り返し実施し、総予測電力値が電力目標値より小さくなった場合に(ステップS106/No)、デマンド制御を解除し、ステップS102に戻る。すなわち、管理装置10は、ステップS102~S107の一連の動作を繰り返し実施する。
When the total predicted power value is less than the power target value (step S106 / No), the control content processing unit 111 returns to step S102 without performing demand control. On the other hand, if the total predicted power value is greater than or equal to the power target value in the above comparison processing (Step S106 / Yes), the control content processing unit 111 performs demand control on each device according to the content set in Step S101. (Step S107). Then, the management apparatus 10 repeatedly performs a series of operations in steps S102 to S107, and when the total predicted power value becomes smaller than the power target value (step S106 / No), cancels demand control, and proceeds to step S102. Return. That is, the management apparatus 10 repeatedly performs a series of operations in steps S102 to S107.
なお、管理装置10によるデマンド制御の各工程は、図3に示す符号の順に説明したが、これに限定されるものではない。例えば、運転情報取得処理(ステップS102)と電力量情報取得処理(ステップS103)とは、並行して行ってもよいし、順序を入れ替えて行ってもよい。
In addition, although each process of the demand control by the management apparatus 10 was demonstrated in order of the code | symbol shown in FIG. 3, it is not limited to this. For example, the driving information acquisition process (step S102) and the power amount information acquisition process (step S103) may be performed in parallel or in a reversed order.
以上のように、本実施の形態における空気調和システム100は、管理装置10が、運転情報及び電力量情報をもとに、一定期間内における第1空気調和装置20と第2空気調和装置30との合計の消費電力が電力目標値を超えないように制御する。よって、空気調和システム100は、許容される合計の電力量を第1空気調和装置と第2空気調和装置とに配分する必要がないため、圧縮膨張方式の第1空気調和装置とセントラル方式の第2空気調和装置とを連携させてデマンド制御を実現することができる。つまり、空気調和システム100は、圧縮膨張方式の第1空気調和装置20とセントラル方式の第2空気調和装置30とが併設されているような大規模ビル等の物件において、管理対象の各機器のそれぞれを連携させたデマンド制御を実現することができる。
As described above, in the air conditioning system 100 according to the present embodiment, the management device 10 includes the first air conditioning device 20 and the second air conditioning device 30 within a certain period based on the operation information and the electric energy information. The total power consumption is controlled so as not to exceed the power target value. Therefore, since the air conditioning system 100 does not need to distribute the total amount of power allowed to the first air conditioner and the second air conditioner, the compression-expansion type first air conditioner and the central type first air conditioner Demand control can be realized in cooperation with two air conditioners. In other words, the air conditioning system 100 is configured to manage each device to be managed in a property such as a large-scale building in which the compression-expansion first air conditioner 20 and the central second air conditioner 30 are provided. Demand control that links them together can be realized.
また、管理装置10は、第1空気調和装置20と第2空気調和装置30とのデマンド制御に関する優先順位の設定操作と、電力目標値の設定操作と、を受け付けて設定する機能を有している。つまり、管理装置10は、入力部10Aにより、優先順位の設定操作と電力目標値の設定操作とを受け付けることができる。また、管理装置10は、制御内容設定手段110により、入力部10Aでの操作内容に関する設定登録を行うことができる。したがって、空気調和システム100は、総予測電力値を設定された電力目標値に照らして、優先順位に応じたデマンド制御を行うことができる。また、空気調和システム100は、空調対象空間ごとの人の存否の情報に関連づけて各機器の優先順位を設定することができる。このため、空気調和システム100は、人が存在する場所はデマンド制御を実施せず、人がいないところだけを集中的にデマンド制御するといった具合に、空調能力を制限するバランスを調整することができる。よって、空気調和システム100によれば、快適性を失うことなく、省エネルギー化を図ることができる。
Moreover, the management apparatus 10 has a function which receives and sets the priority setting operation regarding the demand control of the 1st air conditioning apparatus 20 and the 2nd air conditioning apparatus 30, and the setting operation of electric power target value. Yes. In other words, the management apparatus 10 can accept a priority setting operation and a power target value setting operation by the input unit 10A. In addition, the management apparatus 10 can perform setting registration regarding the operation content at the input unit 10 </ b> A by the control content setting unit 110. Therefore, the air conditioning system 100 can perform demand control according to the priority order in light of the set power target value for the total predicted power value. In addition, the air conditioning system 100 can set the priority order of each device in association with information on the presence or absence of a person for each air-conditioning target space. For this reason, the air conditioning system 100 can adjust the balance that limits the air-conditioning capability such that the place where the person is present is not subjected to demand control and only the place where there is no person is centrally demand-controlled. . Therefore, according to the air conditioning system 100, energy saving can be achieved without losing comfort.
さらに、管理装置10は、スケジュール管理機能によって設定登録した優先順位を、時間毎、日にち毎、及び曜日毎の少なくとも1つに応じて変更する機能を有している。つまり、管理装置10は、空調対象空間の日照時間、勤務時間、及び勤務日等に応じて設定された各機器の優先順位に従って、デマンド制御の内容を調整することができる。このため、空気調和システム100によれば、快適性を保ったまま、省エネルギー化を促進することができる。
Furthermore, the management device 10 has a function of changing the priority set and registered by the schedule management function according to at least one of hourly, daily and day of week. That is, the management apparatus 10 can adjust the content of demand control according to the priority order of each device set according to the sunshine hours, working hours, working days, etc. of the air conditioning target space. For this reason, according to the air conditioning system 100, energy saving can be promoted while maintaining comfort.
ここで、空気調和システム100が大規模ビル等の物件に使用される場合、例えば、個別の部屋等の空調に、圧縮膨張方式の第1空気調和装置20が用いられ、共用スペース等のエントランス又は大広間などの空調に、セントラル方式の第2空気調和装置30が用いられる。このような場合、空気調和システム100は、個別の部屋等に対応する第1空気調和装置20にデマンド制御を実施し、共用スペース等に対応する第2空気調和装置30にはデマンド制御を行わないといった具合に、デマンド制御の対象エリアを調整することができる。
Here, when the air conditioning system 100 is used for a property such as a large-scale building, for example, the compression-expansion type first air conditioner 20 is used for air conditioning of an individual room or the like, and an entrance or a common space or the like A central second air conditioner 30 is used for air conditioning in a salon or the like. In such a case, the air conditioning system 100 performs demand control on the first air conditioner 20 corresponding to an individual room or the like, and does not perform demand control on the second air conditioner 30 corresponding to a shared space or the like. Thus, the target area for demand control can be adjusted.
また、空気調和システム100は、デマンド制御の対象エリアごとにデマンドレベルを設定することができる。例えば、空気調和システム100は、第1空気調和装置20のデマンド制御のみではデマンドオーバーが発生するような場合に、設定したデマンドレベルに従って第2空気調和装置30のデマンド制御を実施することができる。
In addition, the air conditioning system 100 can set a demand level for each target area for demand control. For example, the air conditioning system 100 can perform the demand control of the second air conditioning apparatus 30 according to the set demand level when the demand over occurs only by the demand control of the first air conditioning apparatus 20.
さらに、管理装置10は、スケジュール管理機能を、デマンド制御の対象エリアの設定機能と組み合わせて実行するようにしてもよい。具体的には、例えば、空気調和システム100は、共用スペース等に人が集う平日には、個別の部屋等に対応する第1空気調和装置20に優先的にデマンド制御を実施し、特定の部屋のみに人が存在する休日等には、共用スペース等に対応する第2空気調和装置30に優先的にデマンド制御を実施するようにしてもよい。すなわち、空気調和システム100は、デマンド制御の対象エリアをカレンダー情報に応じて調整するようにしてもよい。
Furthermore, the management device 10 may execute the schedule management function in combination with the setting function of the target area for demand control. Specifically, for example, the air conditioning system 100 preferentially performs demand control on the first air conditioning apparatus 20 corresponding to an individual room or the like on a weekday when people gather in a common space or the like, and a specific room. On holidays where only people are present, demand control may be preferentially performed on the second air conditioner 30 corresponding to a shared space or the like. That is, the air conditioning system 100 may adjust the target area for demand control according to the calendar information.
また、管理装置10は、個別の部屋等の空調対象空間ごとに、デマンド制御を行うか否かを決定するようにしてもよい。加えて、管理装置10は、共用スペース等の空調対象空間を複数の領域に分けて認識すると共に、各領域に対して個々のデマンドレベルを設定し、設定したデマンドレベルに従って各領域のデマンド制御を行うようにしてもよい。つまり、空気調和システム100は、一台の管理装置10によって、デマンド制御を行いたいエリア等を指定し、第1空気調和装置20と第2空気調和装置30とのトータルの電力量に基づくデマンド制御を行うことができる。
Further, the management device 10 may determine whether to perform demand control for each air-conditioning target space such as an individual room. In addition, the management device 10 recognizes an air-conditioning target space such as a shared space by dividing it into a plurality of areas, sets individual demand levels for each area, and performs demand control for each area according to the set demand level. You may make it perform. That is, the air conditioning system 100 designates an area or the like for which demand control is to be performed by a single management device 10, and demand control based on the total electric energy of the first air conditioning device 20 and the second air conditioning device 30. It can be performed.
なお、上述した実施の形態は、空気調和システムにおける好適な具体例であり、本発明の技術的範囲は、これらの態様に限定されるものではない。例えば、デマンド制御の内容は、管理装置10において、1段階だけではなく、複数の段階に分けて設定できるようにしてもよい。そして、管理装置10は、各段階に応じた電力目標値を設定できるようにするとよい。例えば、管理装置10が、電力量の大きさによる4段階の電力目標値A~D(A<B<C<D)と、空調能力の制限の大きさによる4段階のデマンド制御P~S(P<Q<R<S)とを設定登録した場合を想定する。この場合、管理装置10は、総予測電力値と電力目標値A~Dとの大小関係に応じて、デマンド制御P~Sを選択して実施するようにするとよい。すなわち、管理装置10が、A≦総予測電力値<Bであればデマンド制御Pを実施し、B≦総予測電力値<Cであればデマンド制御Qを実施し、C≦総予測電力値<Dであればデマンド制御Rを実施し、D≦総予測電力値であればデマンド制御Sを実施するようにしてもよい。このようにすれば、ユーザの快適性を考慮した柔軟なデマンド制御を行うことができる。また、比較的早い段階で、空調能力の制限の少ないデマンド制御を実施することができるため、デマンドオーバーが発生するリスクを低減することができると共に、省エネルギー化を図ることができる。
The embodiment described above is a preferred specific example in the air conditioning system, and the technical scope of the present invention is not limited to these embodiments. For example, the content of demand control may be set in the management device 10 in a plurality of stages instead of only one stage. And the management apparatus 10 is good to enable it to set the electric power target value according to each step. For example, the management apparatus 10 has four levels of power target values A to D (A <B <C <D) depending on the amount of electric power, and four levels of demand control P to S (based on the limit of the air conditioning capacity). Assume that P <Q <R <S) is set and registered. In this case, the management apparatus 10 may select and execute the demand controls P to S according to the magnitude relationship between the total predicted power value and the power target values A to D. That is, the management apparatus 10 executes demand control P if A ≦ total predicted power value <B, executes demand control Q if B ≦ total predicted power value <C, and C ≦ total predicted power value < If D, demand control R may be implemented, and if D ≦ total predicted power value, demand control S may be implemented. If it does in this way, flexible demand control in consideration of a user's comfort can be performed. In addition, since demand control with less limitation of air conditioning capability can be performed at a relatively early stage, it is possible to reduce the risk of occurrence of demand over and to save energy.
図1では、空気調和システム100が2台のパルス入力装置を有する場合を例示しているが、これに限定されるものではない。例えば、空気調和システム100は、パルス入力装置50a及びパルス入力装置50bと同様に機能する1台のパルス入力装置を有するようにしてもよい。一台のパルス入力装置は、少なくとも4つの入力ポートを有し、電力量計40a~40dから出力されるパルス信号を取り込むように構成するとよい。
FIG. 1 illustrates the case where the air conditioning system 100 includes two pulse input devices, but is not limited thereto. For example, the air conditioning system 100 may include one pulse input device that functions in the same manner as the pulse input device 50a and the pulse input device 50b. One pulse input device may have at least four input ports, and may be configured to capture pulse signals output from the watt-hour meters 40a to 40d.
図1では、空気調和システム100が、1台の室外機と2台の室内機を有する場合を例示したが、これに限定されるものではない。すなわち、空気調和システム100は、2台以上の室外機を有するようにしてもよい。また、空気調和システム100は、1台又は3台以上の室内機を有するようにしてもよい。
FIG. 1 illustrates the case where the air conditioning system 100 includes one outdoor unit and two indoor units, but is not limited thereto. That is, the air conditioning system 100 may have two or more outdoor units. In addition, the air conditioning system 100 may have one or three or more indoor units.
図1では、空気調和システム100が、1台の熱源機と2台の熱源用室内機を有する場合を例示したが、これに限定されるものではない。すなわち、空気調和システム100は、2台以上の熱源機を有するようにしてもよい。また、空気調和システム100は、1台又は3台以上の熱源用室内機を有するようにしてもよい。
FIG. 1 illustrates the case where the air-conditioning system 100 has one heat source unit and two heat source indoor units, but is not limited thereto. That is, the air conditioning system 100 may have two or more heat source units. In addition, the air conditioning system 100 may include one or three or more heat source indoor units.
また、管理装置10が、例えばXML(Extensible Markup Language)等の通信による遠隔操作を受け付ける通信部を有するように構成してもよい。そして、通信部が、外部からのデマンド制御の変更指令を受け付けると共に、管理装置10の他の内部構成と連動して、デマンド制御の変更処理を行うようにしてもよい。このようにすれば、例えば、電力量不足又は災害が発生した場合等において、管理者等は、現地にいなくても、管理装置10の通信部を介して、デマンド制御の内容を外部から変更することができる。
Further, the management apparatus 10 may include a communication unit that receives a remote operation by communication such as XML (Extensible Markup Language), for example. The communication unit may receive a demand control change command from the outside and perform a demand control change process in conjunction with another internal configuration of the management apparatus 10. In this way, for example, when there is a shortage of power or when a disaster occurs, the administrator etc. can change the content of demand control from the outside via the communication unit of the management device 10 even if he / she is not at the site. can do.
本実施の形態では、第2空気調和装置30が水を循環させる場合を例示したが、これに限らず、第2空気調和装置30は、熱媒体としてブライン等を循環させるように構成してもよい。また、本実施の形態では、圧縮膨張式の空気調和装置と、熱源機を用いたセントラル方式の空気調和装置とが併設された空気調和システム100について説明したが、これに限定されるものではない。例えば、空気調和システム100は、圧縮膨張式の空気調和装置と、冷凍機又はボイラー等を用いた空気調和装置とが併設されたものであってもよい。
In the present embodiment, the case where the second air conditioner 30 circulates water has been exemplified. However, the present invention is not limited thereto, and the second air conditioner 30 may be configured to circulate brine or the like as a heat medium. Good. Moreover, in this Embodiment, although the air-conditioning system 100 provided with the compression-expansion-type air conditioning apparatus and the central-type air conditioning apparatus using a heat source machine was demonstrated, it is not limited to this. . For example, the air conditioning system 100 may include a compression / expansion air conditioning apparatus and an air conditioning apparatus using a refrigerator, a boiler, or the like.
10 管理装置、10A 入力部、20 第1空気調和装置、21 室外機、22a、22b 室内機、30 第2空気調和装置、31 熱源機、32a、32b 熱源用室内機、40a~40d 電力量計、50a、50b パルス入力装置、100 空気調和システム、101 通信手段、102 運転情報収集手段、103 運転情報記憶手段、104 運転情報設定手段、105 運転情報処理手段、106 電力量情報収集手段、107 電力量情報記憶手段、108 電力量情報設定手段、109 電力量情報処理手段、110 制御内容設定手段、111 制御内容処理手段、112 制御内容記憶手段、113 運転情報変更手段、114 変更記憶手段、200 伝送線、210 室外機用電源線、220 室内機用電源線、230 熱源機用電源線、240 熱源室内機用電源線、250a~250d パルス信号線、300a~300d 電源。
10 management device, 10A input unit, 20 first air conditioner, 21 outdoor unit, 22a, 22b indoor unit, 30 second air conditioner, 31 heat source unit, 32a, 32b heat source indoor unit, 40a-40d watt hour meter , 50a, 50b, pulse input device, 100 air conditioning system, 101 communication means, 102 operation information collection means, 103 operation information storage means, 104 operation information setting means, 105 operation information setting means, 106 electric energy information collection means, 107 electric power Amount information storage means, 108 power amount information setting means, 109 power amount information processing means, 110 control content setting means, 111 control content processing means, 112 control content storage means, 113 operation information change means, 114 change storage means, 200 transmission Line, 210 power supply line for outdoor unit, 220 power supply for indoor unit Line 230 heat source machine power line, the power line for 240 heat the indoor unit, 250a ~ 250d pulse signal lines, 300a ~ 300d supply.
Claims (4)
- 室内機と室外機とが冷媒配管で接続されて冷媒を循環させる第1空気調和装置と、
熱源機と熱源用室内機とが熱媒体配管で接続されて熱媒体を循環させる第2空気調和装置と、
前記第1空気調和装置及び前記第2空気調和装置の運転状態を示す運転情報と消費電力量を示す電力量情報とを収集して管理する管理装置と、を有し、
前記管理装置は、
前記運転情報及び前記電力量情報をもとに、一定期間内における前記第1空気調和装置と前記第2空気調和装置との合計の消費電力が電力目標値を超えないように、前記第1空気調和装置及び前記第2空気調和装置の空調能力を制限するデマンド制御を行うものである空気調和システム。 A first air conditioner in which the indoor unit and the outdoor unit are connected by a refrigerant pipe to circulate the refrigerant;
A second air conditioner in which the heat source unit and the heat source indoor unit are connected by a heat medium pipe to circulate the heat medium;
A management device that collects and manages operation information indicating an operation state of the first air conditioner and the second air conditioner and power amount information indicating a power consumption amount, and
The management device
Based on the operation information and the power amount information, the first air so that the total power consumption of the first air conditioner and the second air conditioner within a certain period does not exceed a power target value. An air conditioning system for performing demand control for limiting an air conditioning capability of the air conditioning device and the second air conditioning device. - 前記管理装置は、
前記第1空気調和装置と前記第2空気調和装置との前記デマンド制御に関する優先順位の設定操作と、前記電力目標値の設定操作と、を受け付ける入力部を有する請求項1に記載の空気調和システム。 The management device
2. The air conditioning system according to claim 1, further comprising: an input unit that receives a priority setting operation regarding the demand control of the first air conditioner and the second air conditioner and a setting operation of the power target value. . - 前記管理装置は、
時間毎、日にち毎、及び曜日毎の少なくとも1つに関連づけて前記優先順位及び前記電力目標値の設定内容を登録する機能を有すると共に、前記優先順位の設定内容及び前記電力目標値の設定内容のうちの少なくとも1つを、時間毎、日にち毎、及び曜日毎の少なくとも1つに応じて変更するものである請求項2に記載の空気調和システム。 The management device
A function of registering the setting contents of the priority order and the power target value in association with at least one of every hour, every day, and each day of the week, and the setting contents of the priority order and the setting contents of the power target value The air conditioning system according to claim 2, wherein at least one of them is changed according to at least one of every hour, every day, and every day of the week. - 前記室外機、前記室内機、前記熱源機、及び前記熱源用室内機の各機器に接続され、電力量を示すパルス信号を発信する電力量計と、
前記電力量計からのパルス信号を積算して前記各機器それぞれの消費電力量を演算するパルス入力装置と、を有し、
前記管理装置は、
前記パルス入力装置において演算された消費電力量から前記各機器それぞれの消費電力の予測値を求め、求めた各予測値を合算した総予測電力値が前記電力目標値以下である場合に、前記デマンド制御を実行するものである請求項1~3の何れか一項に記載の空気調和システム。 An watt-hour meter that is connected to each device of the outdoor unit, the indoor unit, the heat source unit, and the indoor unit for heat source and transmits a pulse signal indicating the amount of power;
A pulse input device that integrates pulse signals from the watt-hour meter to calculate the power consumption of each of the devices, and
The management device
When the predicted power consumption value of each device is determined from the power consumption calculated in the pulse input device, and the total predicted power value obtained by adding the calculated predicted values is equal to or less than the power target value, the demand The air conditioning system according to any one of claims 1 to 3, wherein the control is executed.
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