JP2005124341A - Electric energy saving control system - Google Patents

Electric energy saving control system Download PDF

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Publication number
JP2005124341A
JP2005124341A JP2003358675A JP2003358675A JP2005124341A JP 2005124341 A JP2005124341 A JP 2005124341A JP 2003358675 A JP2003358675 A JP 2003358675A JP 2003358675 A JP2003358675 A JP 2003358675A JP 2005124341 A JP2005124341 A JP 2005124341A
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Prior art keywords
power
control
device
unit
control system
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JP2003358675A
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Japanese (ja)
Inventor
Kazuaki Iyasaka
Koji Kasai
一昭 弥栄
孝二 笠井
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Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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Priority to JP2003358675A priority Critical patent/JP2005124341A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of electrical power generation, transmission or distribution, i.e. smart grids as climate change mitigation technology in the energy generation sector
    • Y02E40/76Computing methods or systems for efficient or low carbon management or operation of electric power systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy
    • Y02P80/11Efficient use of energy of electric energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/54Management of operational aspects
    • Y04S10/545Computing methods or systems for efficient or low carbon management or operation of electric power systems

Abstract

An object of the present invention is to provide an electric power energy saving control system that is inexpensive and simple and easy to operate, and an apparatus related thereto.
A power measurement device (WHM) that measures and acquires electric energy, a control device adapter that outputs a control signal to control the corresponding electric device, and an operation based on the electric energy acquired by the WHM A control terminal device that performs communication with the WHM, the control device adapter, and the control terminal device via a power line, and controls the control device adapter from the amount of power acquired by the WHM. It is comprised so that it may do.
[Selection] Figure 1

Description

  The present invention relates to a power management apparatus and system capable of remotely monitoring, controlling and operating a power operation state / situation in a facility in a small / medium factory or a tenant building.

  Many systems and devices that implement power monitoring and control for small and medium-sized factories, tenant buildings, and facilities have been introduced and are effective in power management centering on energy conservation.

  Many of these supervisory control systems and devices have the role of reducing unnecessary energy consumption or managing demand power by setting and executing various controls using a computer. .

  Furthermore, for air conditioners, it is considered desirable from the viewpoint of energy conservation to raise the room temperature setting several times (summer) or lower (winter) only during peak hours in order to equalize power demand. Some have a set value schedule management function that allows the air conditioning temperature to be preset in each season, and further in units of days and hours (for example, Patent Document 1).

  However, when constructing such a power management system / device, it is generally necessary to systematize each device in conformity with RS485 and various communication protocols, and in any case, as a communication medium, a 2.4-core shielded cable or an optical cable. It is necessary to construct and lay communication media.

In addition, setting value control for performing schedule management as described above is complicated in control setting, especially when setting using a computer or the like, the setting operation is complicated, and only for a limited setter. Settings are made. Or there is a problem that it is not used because it is complicated.
JP 2001-54176 A (FIG. 1)

  As described above, when constructing a power management system / device by the conventional technology, generally, it is necessary to construct a new communication medium such as a 2.4-core shielded cable or an optical cable as a communication medium. In constructing the system, considering the construction cost as well as the equipment cost, the system / device becomes very expensive.

  In addition, the operation of the power management system / device has a great effect on the leveling effect of energy saving / demand power as described above. Therefore, the power management / control system and the device can be operated by simple and easy operation. Development of a power management system and a power energy saving control system that can perform the above is required.

  The present invention has been made based on such a background, and uses an existing power line as a communication medium necessary for constructing a power management system and apparatus. In addition, in the component equipment required for the system construction, the system was constructed by configuring functions capable of power line communication. In addition, the system configuration has a control terminal device, and this device can be displayed and set by simple operation, so that an electric power energy saving control system and related devices that are inexpensive and simple and easy to operate. It is intended to provide.

  In order to achieve the above object, the power energy saving control system of the present invention obtains the power amount of the power system section and connects it from the power measurement device that transmits to the outside and the calculation result by the power amount received from the power measurement device. A control device adapter having a control output unit for controlling an electric device is provided, and the power measurement device and the control device adapter are communicated with each other via a power line.

  Further, the power energy saving control system of the present invention acquires a power amount of a power system section, and transmits a power measurement device to transmit and a control output for controlling an electric device to be connected based on a calculation result by the power amount received from the power measurement device. A control device adapter having a control unit and a control terminal device having a display unit for displaying the amount of power acquired by the power measurement device, the power measurement device, the control device adapter and the control terminal device being connected via a power line. Communication is performed.

  As described above, the present invention uses an existing power line as a communication medium. In addition, by making the power measurement device, the control device adapter, and the control terminal device constituting the power measurement device compatible with the power line communication specification, it is possible to provide a power energy-saving control system at a low cost and easily perform the same. It is possible to build a device. Furthermore, in the control terminal device, a plurality of display patterns and a simple operation / setting unit. Also, a control function based on the setting was provided. In addition, with regard to its control function, power saving energy control can be performed for each control device adapter and each control output terminal, so that optimum control can be realized with simple operation settings, and energy saving and power monitoring of the entire monitoring control target. In addition, it is possible to provide a system / apparatus that easily executes load leveling associated with peak cut by power control.

  Hereinafter, embodiments of the present invention will be described with reference to FIG. 1 and FIGS.

(Embodiment 1)
FIG. 1 is a configuration diagram showing the first embodiment, where 1 is a power measuring device (hereinafter referred to as WHM) for measuring and displaying various power information of a power supply system unit 20 to be measured, and 2 is a control signal from WHM 1. 3 is a control device adapter that executes load control based on the above, 3 is a blocking filter that prevents leakage of transmission signals propagating on the power line, and 100b is a power line (power system) used as a communication medium this time.

  FIG. 2 is a block diagram of the WHM 1. The configuration includes a current transformer (CT) 1a that is installed in the power circuit and measures current consumption of the circuit, and a transformer (PT) 1b that measures the voltage of the circuit. And a current signal processing unit 1c and a voltage signal processing unit 1d for converting the measurement signals from the CT1a and PT1b into circuit signal levels, respectively. Further, the WHM 1 is based on current and voltage measurement signals, an arithmetic processing unit 1f that calculates various power information based on a preset arithmetic expression, a setting unit 1i that sets various setting values, and the arithmetic processing unit described above. A memory unit 1g for storing various power information obtained by 1f and setting information set by the setting unit 1i. Further, the WHM 1 converts the power information obtained by the arithmetic processing unit 1f into a power line communication specification protocol, and outputs the communication information to the control device adapter 2 shown in FIG. 1 by the communication unit 1e.

  In FIG. 2, a display unit 1h is for displaying various types of power information obtained by the arithmetic processing unit 1f, and a power supply unit 1j is for supplying power to a circuit for operating the WHM1.

  On the other hand, FIG. 3 is a block diagram of the control device adapter 2 described above. A transmission signal according to the power line communication specification output from the WHM 1 is received by the communication unit 2a, and further this signal is received from the power line communication specification. It converts into the communication protocol which it has, and it is made to output to the calculating part 2b.

  The control device adapter 2 includes a setting unit 2c for setting a unique address for specifying a device and an output channel indicating a control output terminal to which a load to be controlled is connected, and a memory unit for storing the setting information. 2d.

  Further, the control device adapter 2 decodes the data from the communication unit 2a and outputs a control signal when the signal is a corresponding signal, and outputs a control signal based on the control signal from the calculation unit 2b, for example, a photocoupler And a control output unit 2e provided with a plurality of control output terminals constituted by the above. In this embodiment, the control output terminal possessed by the control device adapter 2 is a two-circuit output terminal, and two loads are controlled. However, the two-circuit output is not fixed.

  The power energy-saving control system according to the present embodiment configured as described above will be described including the functions and operations of main components.

  In FIG. 1, the WHM 1 calculates and calculates various power information of the corresponding power system unit with the above-described configuration, and compares the calculation information with various setting information set in advance, thereby sending the control signal to the corresponding control device adapter 2. Output. The power information mentioned above is the amount of power per unit time and the current power (current demand) / predicted power (predicted demand) based on the amount of power.

  Here, the setting information set in the WHM 1 will be described. In FIG. 2, the setting information set by the setting unit 1i of the WHM 1 includes the unique address of the control device adapter 2 to be controlled during the energy saving control / power control, the output channel set for each control output terminal, and Information to be set for each terminal, for example, a set value such as a target power (target deman) provided to execute the same control order as that of the cutoff control and the return control is set. When there is a possibility that the power information measured / calculated by the arithmetic processing unit 1f, for example, the predicted demand exceeds the target demand, the WHM 1 determines the corresponding control load based on various setting information set in advance in the setting unit 1i. A control signal including an address / control command is output from the communication unit 1e through the power line 100b to the control device adapter 2 to which is connected.

  At this time, on the power line 100b, as shown in FIG. 1, the blocking filter 3 installed at the sending part of the electric power system prevents the control signal from leaking to the outside and has an influence on interference with other electric power systems. It is preventing.

  On the other hand, as shown in FIG. 3, a load 100 c to be controlled during energy saving control / power control is connected to the control device adapter 2. In this embodiment, the control load is a load provided with a power control terminal, and has an interface configuration using a photocoupler or the like.

  As another form of the control output unit 2e, as shown in FIG. 4, for a load that can be directly controlled ("on / off") using a power relay 2e1, the load can be directly controlled based on the control signal. It is also possible to perform power supply control.

  Further, the corresponding control device adapter 2 stores the address previously set by the setting unit 2c in the memory unit 2b, so that the received data is requested to be controlled by the control device adapter 2. Can be determined.

  Here, the operation of the control device adapter 2 in FIG. 3 will be described in more detail. The calculation unit 2b decodes the transmission signal received by the communication unit 2a via the power line 100b, and when there is a selection of a local address (matching with a memory address) and a load control command, the corresponding control output unit 2e is selected. Energy saving and power control are executed by controlling the state of the control output terminal to which the corresponding load is connected. When the load to be controlled is an air conditioner, for example, when the air conditioner is operating in summer, by controlling a power control (demand control) terminal provided in the air conditioner, +2 with respect to a preset temperature set in the air conditioner in advance ℃ set temperature rise control is executed and energy saving is possible.

  When this control is executed, it is generally said that it is possible to save approximately 10 to 15% of the power consumed by the air conditioner itself.

  As described above, according to the present embodiment, the WHM 1 and the control device adapter 2 are configured to be able to communicate and control via the existing power line, without laying a new communication medium. It is an object of the present invention to provide a configuration capable of reducing the construction cost and further reducing the communication medium so that the system can be easily constructed at low cost. In addition, by using an output control pattern that matches the control load state for each control device adapter 2 or for each control output terminal, optimal power control and energy saving control are executed, and energy saving of power energy and peak cutting of load are performed. This makes it possible to equalize the electric power.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS. In FIG. 5, reference numeral 4 denotes a control terminal device that displays various power information measured and calculated by the WHM 1 and a calculation result based on the power information. In this embodiment, the same parts as those in the first embodiment are described. 5 and 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, the difference from the first embodiment is that a control terminal device 4 capable of power line communication is configured as a terminal for displaying various power information, whereby in addition to the power control function, power monitoring・ It is possible to provide an energy-saving control system with improved measurement functions.

  Hereinafter, the operation and function of the power energy saving control system in the present embodiment will be described.

  6 is a block diagram showing the control terminal device 4 shown in FIG. 5, FIG. 7 is an external view seen from the front of the control terminal device 4, and FIG. 8 is a display pattern used in the present embodiment of the control terminal device 4. It is an example. In FIG. 6, 3a is a communication unit that receives a transmission signal according to the power line communication specification, converts the power line communication specification into a communication protocol possessed by this apparatus, and controls the interface with the calculation unit 3b. The calculation unit 3b is obtained from the WHM 1. Various power calculations and display calculations are performed from the obtained data. Reference numeral 3c denotes a memory unit that stores a calculation result calculated by the calculation unit 3b. Reference numeral 3d denotes a display unit that performs display output based on a display control signal from the calculation unit 3b.

  Reference numeral 3e is a time counter for counting a time limit for a 30-minute time period required for demand (power) calculation and a time for performing time calculation, and 3f is an operation / setting unit for selecting and determining a display pattern. The setting of the power amount information transmitted from the WHM 1 to the control terminal device 4 is set to output various power information data calculated and measured every unit time. In the present embodiment, data is output by communication every minute. According to this configuration, the control terminal device 4 receives various power information data output from the WHM 1 every minute.

  In the control terminal device 4, the received data is protocol-converted from the power line communication specification by the communication unit 3a based on the above-described configuration, and the converted received data is decoded by the arithmetic processing unit 3b. Then, the calculation unit 3b calculates various power information based on the preset calculation formula and the time limit data obtained from 3e, and once saves the calculation result in the memory unit 3c and selects and sets it by the operation / setting unit 3f. A display control signal is output to the display unit 3d in accordance with the displayed display pattern to control display.

  Here, a display example according to the present embodiment will be described. In FIG. 7, reference numerals 3g and 3h are operation buttons for performing operation setting, and constitute the above-described operation / setting unit 3f. 3h has an update function, 3g has a determination function, updates the display by 3i, determines at 3g, and displays and holds the display pattern in this state. Reference numeral 3i denotes a display unit 3d, which is composed of, for example, a liquid crystal.

  8A and 8B show display patterns for performing real-time display on the display unit of the control terminal device 4, and FIG. 8A shows demand information. Here, 81 a on the display screen is the current time, 81 b is the target demand, 81 c is the reference demand, and 81 d is the current demand, which are displayed on the display unit of the control terminal device 4.

  FIG. 8B shows the electric energy information, 82e indicates the integrated electric energy from 0:00 to the present day, and 82f indicates the integrated electric energy from the beginning of the current month to the present in real time.

  If there is a possibility that the demand value may exceed the target demand from the current demand, remaining time and target demand, the background color of the demand information display screen shown in FIG. 8A is changed from normal white to red. It is configured to display an alarm.

  The display pattern described above is configured to be updated and displayed in real time at each reception timing, in other words, every unit time. According to the present embodiment, the display is updated every minute, and one reference data is provided for power management within a time limit and daily.

  Next, display patterns for displaying data in a relative / comparison manner will be described with reference to FIGS.

  First, FIG. 9A shows a daily load curve by displaying the integrated electric energy in units of one hour with the vertical axis indicating the integrated electric energy and the horizontal axis indicating time, and is indicated by 91b in the figure. The display graph shows hourly integrated power amount data up to one hour before the current time, and 91c in the figure indicates the integrated power amount data within the current time limit. Thus, in the control terminal device 4 of this Embodiment, it is possible to compare the load condition for every time by the display on a display apparatus.

  FIG. 9B is a bar graph showing the monthly integrated electric energy on the vertical axis and the monthly integrated electric energy on the horizontal axis, and the graph indicated by 92d in the figure shows the past data of the year. 92e in the figure displays the data from the beginning of the current month to the present, and 92f in the figure displays the data for the corresponding month in the previous year as a reference display. For example, the data can be identified by the color of the bar graph.

  Further, FIG. 9C is a demand monthly report graph by demand display, and the monthly maximum demand value is displayed as a bar graph as data for the past 12 months based on the current date and time. The value is displayed. In addition, 93g in the figure digitally displays the maximum generated demand value for the current month.

  In this way, according to this display pattern, it is possible to grasp the monthly energy consumption transition, and to predict the transition of the energy consumption from the next month by displaying the data from the same month of the previous year as a reference. It is possible to provide one reference data for managing the amount of power after the next month.

  As described above, according to the present embodiment, the control terminal device 4 capable of power line communication is configured, and the display configuration of the control terminal device 4 is a display configuration capable of real-time display or relative comparison. In addition to providing control functions, it is possible to provide an energy-saving control system that improves power monitoring and measurement functions. In addition, since the flexibility of installation location is expanded, monitoring and measurement devices are installed near power managers such as offices. can do. Similarly, because of the power line communication, the control terminal device can be easily moved and moved, and the power usage state can be easily monitored over a wide range. Furthermore, with the display configuration as described above, it is possible to provide data necessary for power management on the display screen.

(Embodiment 3)
Embodiment 3 of the present invention will be described with reference to FIG. In FIG. 10, 10 is a power measurement device (WHM10) that measures and displays various power information of the power supply system unit 20 to be measured, and 11 is a protocol conversion of communication data of the WHM10 into a power line communication specification and communicates on the power line 100b. In this embodiment, the same reference numerals are assigned to the same parts as those in Embodiments 1 and 2, and the detailed description thereof is omitted.

  In the present embodiment, the difference from the second embodiment is that the connection adapter 11 that controls the interface with the WHM 10 is configured by converting the communication protocol of the apparatus into the power line communication specification.

  Here, although the configuration of the WHM 10 in the present embodiment is not particularly illustrated, it has a communication unit that does not support power line communication, and the power line communication function is provided from the communication unit 1e by the configuration of the WHM 1 shown in FIG. The configuration is abolished and reduced, and other components and functions of the components have the same functions. Further, as described above, the connection adapter 11 has a function for controlling the protocol conversion to the power line communication. The connection adapter 11 receives the communication output from the WHM 10, converts the protocol to the power line communication specification, and is connected to the power line 100b. It has a function of configuring an interface with the control device adapter 2 and the control terminal device 4.

  As described above, according to the present embodiment, by configuring the connection adapter 11, a power energy saving control system using a power line as a communication medium is provided even in a power measuring device that does not support the power line communication specification. It becomes possible to make effective use of existing / existing power measuring devices, and the device configuration can be made at low cost in configuring the power saving device.

(Embodiment 4)
A fourth embodiment of the present invention will be described with reference to FIG. In FIG. 11, 13 is a power measurement device (WHM13) that measures power information of a power circuit (power supply system) to be measured, 12 is a control terminal device, and this embodiment is the same as in the first and second embodiments. Parts are denoted by the same reference numerals, and detailed description thereof is omitted.

  In this embodiment, the difference from the second embodiment is that the control terminal device 12 executes the energy saving control / power control by expanding the functions of the control terminal device 4 used in the configuration of the power energy saving control system in the second embodiment. It is the point which constituted so.

  Here, although illustration and detailed explanation are omitted, the power measuring device (WHM 13) used in the present embodiment functions to measure the power amount of the power circuit (power supply system) to be measured and to perform communication output every minute. Although the reduction is intended, the functions and operations of the components related thereto are as described in FIG. 2 of the first embodiment.

  Next, the control terminal apparatus 12 in this Embodiment is demonstrated using FIG. 12 and FIG.

  FIG. 12 is a configuration diagram of the control terminal device 12 used in the present embodiment, and FIG. 13 is an external view as viewed from the front.

  In FIG. 12, 12a is a communication unit 12a that performs protocol conversion of communication data and manages transmission and reception, and performs bidirectional communication. Reference numeral 12h denotes a control state setting unit that configures an operation control pattern of the load, and sets each control logic of an operation pattern and an operation mode that configure the operation control pattern. 12b is an arithmetic unit that executes various electric energy calculations and display calculations based on the electric energy data from the WHM 13, and the arithmetic unit 12b executes two types of arithmetic control based on the aforementioned electric energy calculation results, The display function shown in Embodiment Mode 2 is also used. An operation / setting unit 12f sets information necessary for various condition control and control. A signal control unit 12g is configured to be able to output a control signal via the communication unit 12a. The other display unit 3d, memory unit 3c, and time counter unit 3e have the same functions as those in the second embodiment.

  Hereinafter, an outline of the operation of the power saving control system according to the present embodiment will be described. The power amount information per unit time measured / communication output by the WHM 13 is once received by the terminal control device 12, and various power information based on the counter data of the timed counter unit 3 e by the arithmetic processing unit 12 b of the terminal device 12. Execute the operation. And the control terminal device 12 displays the calculation result by the calculation process part 12b on the display part 3d based on the display pattern to which various electric energy information was set similarly to Embodiment 2. FIG.

  On the other hand, the control terminal device 12 outputs a control signal to the control device adapter 2 based on two types of arithmetic control results. That is, one of the calculation controls is a control signal in accordance with the control logic of the operation control pattern that is operated by the operation / setting unit 12f in advance using the power calculation result and set by the control state setting unit 12h. It outputs via the communication part 12a. Another calculation control is a control control for shutting off / returning the control load. The demand is predicted from the current demand and the remaining time limit data obtained from the time limit counter unit 3e, and the predicted demand exceeds the target demand. If there is a risk of failure, a control signal for cutting off the load is output in the order of preset control loads. On the other hand, if it is determined that there is no risk that the predicted power exceeds the target power, a control signal is output so that the control load is restored in the reverse order of the cutoff control.

  Here, the operation / setting unit and the operation control pattern will be described with reference to FIGS. 13a-13d in FIG. 13 shows one element of the operation function which comprises the operation and setting part 12f of the control terminal device 12, and mainly has the operation target point movement on the screen, and a numerical value selection function. 13a is an upward movement and numerical value count-up button, 13b is a rightward movement button, 13c is a downward movement and numerical value countdown button, and 13d is a leftward movement button. Reference numeral 13e denotes a help button whose function will be described later. The decision button 3g and the update button 3f have the same functions as those in the second embodiment.

  FIG. 14 is a setting screen pattern diagram showing the control state setting I, which is a setting screen for setting an operation control pattern for each control device adapter 2 and each control output terminal of the device adapter 2. 14a is a point for setting a unique address set in the control device adapter 2 to be controlled, 14b is an output channel set for each control output terminal of the control device adapter 2, and 14c and 14d are respectively The operation mode and operation pattern constituting the operation control pattern are set at the point 14e for setting whether or not the load connected to the target output channel is effectively interrupted / returned. When the control execution is set, the interrupt control is performed. It is set as the structure which inputs a numerical value in order. When not set, the control is configured not to be performed, and all are determined by the operation buttons 13a to 13d, 3g, and 3f shown in FIG.

  Further, in the control terminal device, when the predicted power is determined to exceed the preset target power, the order of shutting down the electrical equipment to be shut down or the order of returning, that is, the priority order is stored, and the electrical equipment is stored in that order. Can be shut off and restored. Thereby, electric power energy saving control according to a user's actual use condition is performed.

  Here, the operation pattern which comprises an operation control pattern is demonstrated, referring the setting screen pattern figure of the control state setting II shown in FIG. 15, and FIG. 16 (a) (b). When the 14d operation pattern shown in FIG. 14 is selected and determined, the operation pattern setting screen shown in FIG. 15 is displayed. As shown in FIG. 15, the driving pattern is composed of two patterns, a forced pattern and an arbitrary pattern. 15a in FIG. 15 is a point for setting a forced pattern, and 15b is a point for setting an arbitrary pattern. As shown in the forced pattern in FIG. 16 (a), a preset operation mode is set as a pattern to be executed every hour. Yes. On the other hand, in the arbitrary pattern shown in FIG. 16 (b), the user sets three time zones when control is required, and the operation mode is executed only during the set time zones. For reference, FIG. 18A shows a setting display screen when setting an arbitrary pattern.

  In this way, it is possible to set the operation control state by a simple and easy operation for each control adapter and for each control output terminal held by the device 2. The above-described operation mode indicates the control output time per unit time. In the present embodiment, as shown in FIG. 17, the control output time per hour is shown. As can be seen, the L mode configured to output control for continuous t minutes per hour, the M mode configured to output control output for continuous t minutes every 30 minutes, and the control output for continuous t minutes every 20 minutes There are three output modes, H mode, configured to output to Of course, the operation pattern and the operation mode may be configured according to the effect, and it is not necessary to limit the number of patterns as in the present embodiment, and a plurality of patterns can be prepared and configured.

  In this embodiment, a help button having a help function for stopping the control even during the energy saving control / power control is configured as shown in 13e of FIG. 13 which is an external view of the apparatus. . When this help function is executed, it has a function of temporarily stopping control and automatically returning after one hour, and forcibly returning from the help state by executing the help button twice continuously. FIG. 18 shows a help display screen when help is executed. The point shown in FIG. 18 (a) indicates the status display, and during the execution of the help, “control stopped” is displayed. 18 (b) is configured to display the remaining time of help, and is configured to display the remaining time of 20 minutes when 40 minutes have elapsed since the normal help execution.

  As described above, according to the present embodiment, it is possible to easily set the power / energy saving control by configuring the control terminal device capable of power line communication and configuring the power calculation control function in addition to the display function. It becomes possible to set and monitor as necessary. Furthermore, since the power measuring device (WHM) can be configured more compactly, the degree of freedom of installation location is widened, and handling properties and the like can be improved.

(Embodiment 5)
This embodiment will be described with reference to FIG. In FIG. 19, reference numeral 14 denotes a control device adapter, 19b denotes a control state setting unit, 19d denotes a calculation unit, and the same parts as those in the first, second, and fourth embodiments are denoted by the same reference numerals and repeated detailed description thereof. Omitted.

  FIG. 19 is a configuration diagram showing the control device adapter 14 used in the present embodiment, and the control state setting unit 12h function configured in the control terminal device 12 in the fourth embodiment is configured in 19b of the control device adapter 14. The point that was done is different.

  In FIG. 19, 19 b is a control state setting unit in which each control logic of the operation pattern and operation mode that configures the operation control state of the load is set, and 19 d configures the load control state based on a signal from the control terminal device. -It is a calculation part to determine. In addition, the communication unit 2a that constitutes an interface between the control terminal device and the calculation unit 19d, a setting unit 2c that mainly sets an address, a memory unit 2b that stores the address, and a control signal from the calculation unit 19d The control output unit 2e is provided with a plurality of control output terminals configured by, for example, photocouplers for outputting control signals.

  Further, although illustration and detailed explanation are omitted, the control terminal device used in the present embodiment has a load operated / set by the operation / setting unit 12f from the configuration of the control terminal device 12 shown in FIG. Each parameter indicating the operation control state is configured to be output to the control device adapter 14, and the other functions are the same as those of the control terminal device 12 described in the fourth embodiment.

  The operation of the power energy saving control system configured as described above will be described.

  The control device adapter 14 determines an operation control state for each control terminal by the calculation unit 19d based on each parameter value indicating the operation control state of the load received from the control terminal device and the control state setting unit 19b. The computing unit 19d performs load control by outputting a control signal to the control output unit 2e based on the determined operating state. Thus, by providing the control device adapter 14 with the control state setting unit 19b, it is possible to suppress the amount of communication on the power line 100b serving as a communication medium, and thus more control device adapters that execute load control. It is possible to configure a large number of installed energy saving control systems.

  It should be noted that each value of demand and electric energy described in the present embodiment is obtained from the calculation result of the currently received data and the memory data stored in the memory unit by the calculation unit shown in each embodiment, and further from the time counter unit. The calculation is based on the remaining time limit data and time data, and is calculated by the following calculation formula. However, the principle and the like are already well-known techniques and are omitted in the description of the present application.

〇 Integrated power amount W (kWh) = data received from the power measuring device (WHM) 〇Current power Pt (kW) = 2 × (Wt−Wo)
Wt: current integrated electric energy, Wo: integrated electric energy at the start of demand period 〇 predicted electric power Pf (kW) = Pt + (30−Tt) × ΔP
ΔP: Increase in electric energy per unit time ΔT ΔT: Sampling time limit In this embodiment, the communication timing is 1 minute.

Tt: Demand elapsed time period ○ Reference power X (kW) = Pa × Tt ÷ 30
Pa: Target power (set value)

The block diagram of the electric energy saving control system in Embodiment 1 of this invention Configuration diagram of power measuring apparatus according to Embodiment 1 Configuration diagram of control device adapter in embodiment 1 Configuration diagram of control output unit of another configuration according to Embodiment 1 The block diagram of the electric energy saving control system in Embodiment 2 of this invention Configuration diagram of control terminal apparatus in embodiment 2 The external view seen from the front of the control terminal device in Embodiment 2 (A) Display pattern diagram of demand information (b) Display pattern diagram of various electric energy information (A) Display pattern diagram of daily load curve information (b) Display pattern diagram of monthly accumulated energy information (c) Display pattern diagram of demand monthly report information Configuration diagram of power energy saving control system in Embodiment 3 of the present invention Configuration diagram of power energy saving control system in Embodiment 4 of the present invention Configuration diagram of control terminal apparatus in embodiment 4 External view of control terminal device viewed from front in Embodiment 4 Setting screen pattern diagram for performing control state setting I Setting screen pattern diagram for control state setting II (A) Output pattern diagram showing control output state at forced pattern (b) Output pattern diagram showing control output state at arbitrary pattern Setting screen pattern diagram for setting the control output state for an arbitrary pattern (A) Output pattern diagram showing control output status at arbitrary pattern (b) Help status pattern diagram showing help status The block diagram of the control terminal device used for the electric power energy-saving control system in Embodiment 5 of this invention

Explanation of symbols

1, 10, 13 Electric power measurement device (WHM)
2, 14 Control device adapter 2e Control output unit 3 Blocking filter 3d Display unit 4, 12 Control terminal device 11 Connection adapter 12h, 19b Control state setting unit 20 Power system unit 100b Electric power line 100c Electric device (load)

Claims (18)

  1. A power measuring device that acquires the power amount of the power supply system unit and transmits it to the outside, and a control device adapter having a control output unit that controls the electrical device to be connected from the calculation result of the power amount received from the power measuring device A power energy-saving control system that communicates the power measuring device and the control device adapter via a power line.
  2. A power measuring device that acquires and transmits the power amount of the power supply system unit, and a control device adapter that has a control output unit that controls the electrical device to be connected, from the calculation result of the power amount received from the power measuring device, And a control terminal device having a display unit that displays the amount of power acquired by the power measurement device, and energy saving to communicate the power measurement device, the control device adapter, and the control terminal device via a power line. Control system.
  3. The power energy-saving control system according to claim 2, wherein the display unit of the control terminal device displays at least one of the integrated power amount and the current power in real time.
  4. The display unit of the control terminal device displays at least one of a graph of a daily load curve, a monthly integrated power amount, and a monthly maximum demand power obtained from the integrated power amount for each hour or unit time. Electric power saving control system.
  5. The power saving energy control system according to any one of claims 2 to 4, wherein the display unit of the control terminal device displays the monthly integrated power amount after the same month of the previous year as a bar graph and by color.
  6. The power terminal energy saving control system according to any one of claims 2 to 5, wherein the control terminal device includes a control state setting unit that sets an operation pattern in advance for each unit time so as to switch a magnitude of an output of an electric device to be connected.
  7. The control state setting unit of the control terminal device has a pattern switching unit that switches between a forced pattern controlled by a preset operation pattern and an arbitrary pattern controlled by a preset operation pattern only in a preset time zone every hour. 6. The electric energy saving control system according to 6.
  8. The control state setting unit of the control terminal device stores in advance an address for each electrical device connected to the control device adapter, and individually sets an operation pattern to be set for each electrical device. Electric power saving control system.
  9. The control terminal device calculates the predicted power from the amount of power measured by the power measuring unit, and determines that the predicted power has a risk of exceeding the preset target power, the electrical device connected to the control device adapter The power energy-saving control system according to any one of claims 2 to 8, further comprising means for outputting a control signal for shutting off the power.
  10. 10. The power saving control system according to claim 9, wherein the control terminal device has means for displaying an alarm when it is determined that there is a risk that the predicted power exceeds a preset target power.
  11. When it is determined that there is no risk that the predicted power exceeds the target power set by the predicted power, the control terminal device returns a control signal for returning the electric device connected to the control device adapter. The power energy saving control system according to claim 9 or 10, further comprising means for outputting.
  12. The control state setting unit of the control terminal device stores in advance an address for each electric device to be connected, and individually sets an electric device that shuts off or restores the electric device connected to the control device adapter by setting the address. The electric power energy saving control system according to any one of claims 9 to 11, which is configured as described above.
  13. The control state setting unit of the control terminal device stores the priority order of the electrical equipment to be shut off or restored, and shuts off or restores the electrical equipment connected to the control equipment adapter according to the priority order. An energy saving control system according to any one of the above.
  14. The electric power energy saving control system according to any one of claims 2 to 13, wherein the control terminal device has a help function that interrupts the control even during the operation control state and displays the state and the remaining time of the state.
  15. The power equipment energy saving control system according to claim 1, wherein the control device adapter includes a control state setting unit that controls an operation pattern in advance for each unit time so as to switch a magnitude of an output of an electric device to be connected.
  16. The control device adapter includes a control state setting unit configured by a forced pattern controlled by a preset operation pattern every hour and an arbitrary pattern controlled by a preset operation pattern only in a preset time zone. Electric energy saving control system.
  17. The power energy-saving control system according to any one of claims 1 to 16, wherein a blocking filter for preventing a communication signal from leaking to the outside is provided on a power line of a power supply system unit that measures the amount of power by a power measuring device.
  18. The power energy-saving control system according to any one of claims 1 to 17, further comprising a connection adapter that is connected to a power measurement device and transmits the amount of power received from the power measurement device to a power line communication specification.
JP2003358675A 2003-10-20 2003-10-20 Electric energy saving control system Pending JP2005124341A (en)

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Cited By (13)

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JP2009011100A (en) * 2007-06-28 2009-01-15 Mitsubishi Electric Corp Current limiting system
JP2009033880A (en) * 2007-07-27 2009-02-12 Kyuki:Kk Watt-hour meter having function for blocking electric power line communication signal
WO2009096421A1 (en) * 2008-01-28 2009-08-06 Panasonic Electric Works Co., Ltd. Communication system
JP2011205821A (en) * 2010-03-26 2011-10-13 Panasonic Corp Power control system
JP2011250621A (en) * 2010-05-28 2011-12-08 Panasonic Corp Power control system
KR101155864B1 (en) * 2010-12-23 2012-06-12 한전케이디엔주식회사 System and method for management of electric power consumption
JP2013004106A (en) * 2012-07-10 2013-01-07 Toshiba Corp Portable terminal and power saving control method by portable terminal
JP2013106380A (en) * 2011-11-10 2013-05-30 Toyota Home Kk Consumption monitoring system
JP2013118610A (en) * 2011-11-01 2013-06-13 Yamaguchi Prefectural Industrial Technology Institute Utility monitoring terminal and utility device control system employing the same
JP2014096106A (en) * 2012-11-12 2014-05-22 Tokyo Gas Co Ltd Energy consumption display device and energy consumption display method
WO2014088197A1 (en) * 2012-12-03 2014-06-12 (주)이젝스 Power management system and management method therefor
EP2784896A1 (en) * 2013-03-28 2014-10-01 Comwatt System for managing electricity production and consumption
JP2016533153A (en) * 2014-03-26 2016-10-20 イージーセイバー カンパニー リミテッドEasysaver Co., Ltd Electronic device operation control device

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009011100A (en) * 2007-06-28 2009-01-15 Mitsubishi Electric Corp Current limiting system
JP2009033880A (en) * 2007-07-27 2009-02-12 Kyuki:Kk Watt-hour meter having function for blocking electric power line communication signal
US8537698B2 (en) 2008-01-28 2013-09-17 Panasonic Corporation Communication system
WO2009096421A1 (en) * 2008-01-28 2009-08-06 Panasonic Electric Works Co., Ltd. Communication system
KR101136049B1 (en) * 2008-01-28 2012-04-18 파나소닉 전공 주식회사 Communication system
JP4996699B2 (en) * 2008-01-28 2012-08-08 パナソニック株式会社 Communications system
CN101971642A (en) * 2008-01-28 2011-02-09 松下电工株式会社 Communication system
JP2011205821A (en) * 2010-03-26 2011-10-13 Panasonic Corp Power control system
JP2011250621A (en) * 2010-05-28 2011-12-08 Panasonic Corp Power control system
KR101155864B1 (en) * 2010-12-23 2012-06-12 한전케이디엔주식회사 System and method for management of electric power consumption
JP2013118610A (en) * 2011-11-01 2013-06-13 Yamaguchi Prefectural Industrial Technology Institute Utility monitoring terminal and utility device control system employing the same
JP2013106380A (en) * 2011-11-10 2013-05-30 Toyota Home Kk Consumption monitoring system
JP2013004106A (en) * 2012-07-10 2013-01-07 Toshiba Corp Portable terminal and power saving control method by portable terminal
JP2014096106A (en) * 2012-11-12 2014-05-22 Tokyo Gas Co Ltd Energy consumption display device and energy consumption display method
WO2014088197A1 (en) * 2012-12-03 2014-06-12 (주)이젝스 Power management system and management method therefor
EP2784896A1 (en) * 2013-03-28 2014-10-01 Comwatt System for managing electricity production and consumption
FR3004023A1 (en) * 2013-03-28 2014-10-03 En Durable Automatic system for managing the production and consumption of electricity.
JP2016533153A (en) * 2014-03-26 2016-10-20 イージーセイバー カンパニー リミテッドEasysaver Co., Ltd Electronic device operation control device
US10019051B2 (en) 2014-03-26 2018-07-10 Easysaver Co., Ltd. Operation control device for electronic apparatus

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