JP2011193639A - Demand controller and demand control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To highly precisely predict a demand, to suppress influence to an apparatus and an existing person in a building and to efficiently and securely control the demand. <P>SOLUTION: A demand controller includes an event information storing part 41 acquiring and storing event information where increase/decrease of power consumption of the building being a monitoring target is predicted, a past data storing part 42 acquiring and storing environment information on the building when a demand value has exceeded contracted power in the past, a weather information acquiring part 43 acquiring weather information on a position of the building, a power control information acquiring part 44 acquiring power control information on the building, a demand value acquiring part 47 acquiring the latest command value on a facility apparatus in the building, a demand prediction calculating part 45 calculating demand prediction information based on acquired information and a facility apparatus control part 46 determining the facility apparatus controlling an operation based on calculated demand prediction information, informing the existing person of determination and controlling the facility apparatus for controlling the demand by including informed information. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a demand control device and a demand control method for controlling demand values in various plants, buildings, and the like.

  Conventionally, in buildings such as buildings and factories that receive electricity at a high voltage or extra high voltage, the amount of electricity used is measured every 30 minutes by a 30-minute maximum demand power meter (demand meter), and a demand value that is the average power consumption is calculated. Is done.

  The contracted power is determined based on the calculated demand value, and the electricity charge is calculated based on the basic charge determined by the contracted power and the amount of power used, so the demanded power should not exceed the determined contracted power. It is necessary to control.

  As a technique related to this demand control, there is a demand control support method described in Patent Document 1.

  In this demand control support method, it is possible to set an appropriate target power according to the acquired seasonal forecast, and to achieve both minimum environmental maintenance and power charge minimization based on this target power.

Japanese Patent No. 3564605

  Although the demand control according to the demand control described in Patent Document 1 can perform demand control according to the outdoor environment, the demand prediction with higher accuracy affects the equipment in the building and the people in the room. Therefore, it has been desired to perform demand control with as little as possible.

  In addition, the conventional demand prediction is often performed immediately before the prediction target time, and the time from when it is determined that the demand value exceeds the upper limit value until the control target of the equipment in the building is determined based on the demand value is determined. There was a problem that the device could not be controlled efficiently because of the short time.

  For example, if it is predicted that the contract power will exceed the demand measurement target for 30 minutes immediately before (several minutes ago), it is determined which device is to be stopped so that the contract power does not exceed. Since there is only a few minutes to perform, there is a problem that it is difficult to perform reliable demand control because the devices that can be stopped are limited.

  The present invention has been made in view of the above circumstances, demand control capable of performing demand prediction with high accuracy, suppressing the influence on equipment in the building and occupants, and performing efficient and reliable demand control. An object is to provide an apparatus and a demand control method.

  The demand control device of the present invention for achieving the above object is obtained by a power consumption related information acquisition unit that acquires power consumption related information that affects demand control in a monitored building, and the power consumption related information acquisition unit A demand prediction calculation unit that calculates demand prediction information based on power consumption related information, and a facility device that controls operation based on the demand prediction information calculated by the demand prediction calculation unit, and the connected building The building information management server browsed by a user is provided with a facility device control unit that transmits the control content of the facility device.

  In addition, the power consumption related information acquisition unit of the demand control device acquires and stores event information for which increase or decrease of power consumption of the building to be monitored is predicted, and the demand value has exceeded the contract power in the past. A past data storage unit that acquires and stores environmental information related to the building at the time, a weather information acquisition unit that acquires weather condition forecast information related to the location of the building, and power regulation information acquisition that acquires power regulation information related to the building At least one of the parts may be included.

  The demand control method of the present invention includes a power consumption related information acquisition step in which the demand control device acquires power consumption related information that affects demand control in a monitored building, and the power acquired in the power consumption related information acquisition step. A demand prediction calculation step for calculating demand prediction information based on consumption-related information, and a facility device for controlling operation based on the demand prediction information calculated in the demand prediction calculation step. The building information management server that the user browses has a facility device control step of transmitting the control content of the facility device.

  Further, in the power consumption related information acquisition step of the demand control method, a step of acquiring event information for which an increase or decrease in power consumption of the building to be monitored is predicted, the building when the demand value has exceeded the contract power in the past Any one of a step of acquiring environmental information regarding the building, a step of acquiring forecast information of weather conditions regarding the position of the building, and a step of acquiring power regulation information regarding the building may be included.

  According to the demand control device and the demand control method of the present invention, it is possible to perform demand prediction with high accuracy, suppress the influence on equipment in the building and occupants, and perform efficient and reliable demand control.

It is a block diagram which shows the structure of the demand control system using the demand control apparatus by one Embodiment of this invention. It is a sequence diagram which shows operation | movement of the demand control system using the demand control apparatus by one Embodiment of this invention.

  As one embodiment of the present invention, a future demand value is predicted based on various power consumption related information (event information, weather information, past and current demand status information, etc.) that affects demand control in a monitored building. A demand control system that performs demand control will be described.

<Configuration of demand control system according to one embodiment>
A configuration of a demand control system according to an embodiment of the present invention will be described with reference to FIG.

  The demand control system 1 according to the present embodiment includes a facility device 10 in a building to be monitored, a demand meter 20 connected to the facility device 10, an input / output device 30 connected to the facility device 10 and the demand meter 20, A server device 40 as a demand control device connected to the input / output device 30 and connected to the weather information server 2A, the power management server 2B, and the building information management server 2C, which are external Web servers, via the network 3. Have. Although FIG. 1 shows a case where there is one facility device 10 and one input / output device 30 connected to the server device 40 in order to simplify the explanation, a large number of facilities actually installed in the building to be monitored are shown. The device is connected.

  The demand meter 20 acquires the amount of power consumed by the facility device 10, and calculates a demand value every 30 minutes based on this amount of power consumption.

  The input / output device 30 acquires the demand value calculated by the demand meter 20 and transmits it to the server device 40, and transmits the operation instruction of the facility device 10 sent from the server device 40 to the facility device 10.

  The server device 40 includes an event information storage unit 41, a past data storage unit 42, a weather information acquisition unit 43, a power regulation information acquisition unit 44, a demand prediction calculation unit 45, an equipment device control unit 46, a demand value An acquisition unit 47.

  The event information storage unit 41 stores tenant event information in which an increase or decrease in the power consumption of the monitored building is predicted.

  The past data storage unit 42 stores environmental information such as weather conditions and the operation status of equipment in the building when the demand value exceeds the contract power in the past.

  The weather information acquisition unit 43 acquires weather condition forecast information regarding the position of the building from the weather information server 2A connected via the network 3.

  The power regulation information acquisition unit 44 acquires power regulation information related to the building from the power management server 2 </ b> B connected via the network 3.

  The demand prediction calculation unit 45 includes event information stored in the event information storage unit 41, environmental information when past demand values are exceeded stored in the past data storage unit 42, and weather conditions acquired by the weather information acquisition unit 43. Based on the forecast information and the power regulation information acquired by the power regulation information acquisition unit 44, demand prediction information is calculated.

  The equipment control unit 46 determines the operation content of the equipment to be notified in advance to the tenant or occupant of the building based on the demand prediction calculated by the demand prediction calculation unit 45, and the building equipment via the network 3. The information is transmitted to the building information management server 2C that provides information viewed by the tenant or occupant who is the user. Further, the equipment control unit 46 determines the equipment that controls the operation based on the operation content of the equipment notified to the tenant or the occupant and the demand value acquired by the demand value acquisition unit 47 described later, and performs control. Control is performed to reduce the energy consumption by stopping the operation of the target equipment or changing the equipment to reduce the energy consumption.

  The demand value acquisition unit 47 acquires the latest demand value calculated by the demand meter 20 via the input / output device 30.

<Operation of Demand Control System According to One Embodiment>
Next, the operation of the demand control system 1 in the present embodiment will be described.

  When the demand control system 1 in this embodiment is operated, the weather information acquisition unit 43 of the server device 40 receives weather condition forecast information from the weather information server 2A, which is an external Web server connected via the network 3. Obtained (S1). Further, the power regulation information acquisition unit 44 of the server device 40 acquires power regulation information from the power management server 2B, which is an external Web server connected via the network 3 (S2).

  Then, in the demand prediction calculation unit 45 of the server device 40, the event information stored in the event information storage unit 41, the environmental information when the past demand value is exceeded stored in the past data storage unit 42, and the weather information acquisition unit 43 Based on the acquired weather condition forecast information and the power regulation information obtained by the power regulation information obtaining unit 44, demand prediction information is calculated (S3).

  For example, when there is an event that power consumption is predicted to increase on the prediction target day, it is predicted that the demand value will increase based on this, and it is predicted that the outside air will increase due to the forecast information of the weather conditions on the prediction target day and time It is conceivable to calculate demand prediction information for predicting that the load on the air conditioner will increase and the demand value will increase based on this.

  Since this demand prediction information is calculated based on information stored in advance as described above or information that can be acquired in advance from a Web server, it is a relatively early time, such as several hours before or several days before the prediction target time. Can be calculated.

  As a result, demand prediction information is calculated at a relatively early point in time as described above, so that not only equipment that has little effect even if operation is suddenly stopped or changed, but also in advance for tenants and occupants of the building. By notifying the scheduled time or the like for stopping or changing the operation, controllable equipment can be determined as equipment to be controlled.

  Therefore, in the equipment device control unit 46, the operation contents of the equipment to be notified in advance to the tenant or occupant of this building (stopped or changed operation scheduled time, etc.) are generated, and the building information management server 2C is connected via the network 3. And provided by being viewed by tenants or occupants of the building (S4).

  As described above, the tenant or occupant of the building is notified in advance of the information on the equipment to be stopped or changed, the scheduled time, and the like. 10 is acquired (S5), and a demand value every 30 minutes is calculated based on this power consumption (S6).

  Next, the demand value calculated by the demand meter 20 is acquired by the input / output device 30 and sent to the server device 40 (S7).

  Then, based on the demand value calculated by the demand meter 20 and the operation content of the facility device generated in step S4 and notified to the tenant or occupant, the facility device that controls the operation is determined (S8).

  For the equipment determined in this way, a control signal for changing the operation to stop or reduce the energy consumption is generated (S9), and the target equipment is set to 10 via the input / output device 30. The demand control is executed by the transmission (S10).

  According to the above embodiment, based on the event information of the tenant of the building to be monitored, the past demand excess information, the weather information on the location of the building, and the power regulation information on the building, Since demand prediction information can be generated at a relatively early point in time, for example, demand prediction information is generated before the start of a tenant in one day, and equipment that stops or changes operation by demand control is determined and this is determined. Information can be notified to tenants and occupants, and the equipment to be subject to demand control can be expanded rather than performing the determination process immediately before.

  In addition, in the demand control every 30 minutes, in addition to the amount of power acquired by the demand meter, event information of the tenant of the monitored building, past demand excess information, weather information on the location of the building, and the building The demand value may be calculated using the power regulation information regarding. For example, when demand values are increasing and it is determined that the situation is similar to environmental information when past demand values are exceeded, the demand value can be predicted to increase, and efficient and reliable demand control is performed. Can do.

DESCRIPTION OF SYMBOLS 1 ... Demand control system 2A ... Weather information server 2B ... Building information management server 3 ... Network 10 ... Equipment 20 ... Demand meter 30 ... Input / output device 40 ... Server device 41 ... Event information storage part 42 ... Past data storage part 43 ... Weather information acquisition unit 44 ... Power regulation information acquisition unit 45 ... Demand value acquisition unit 46 ... Demand prediction calculation unit 47 ... Equipment control unit

Claims (4)

A power consumption related information acquisition unit that acquires power consumption related information that affects demand control in a monitored building;
A demand prediction calculation unit that calculates demand prediction information based on the power consumption related information acquired by the power consumption related information acquisition unit;
Based on the demand prediction information calculated by the demand prediction calculation unit, the equipment that controls the operation is determined, and the control contents of the equipment are transmitted to the building information management server that the user of the connected building browses. A demand control device comprising: an equipment device control unit. The power consumption related information acquisition unit is an event information storage unit that acquires and stores event information in which an increase or decrease in power consumption of a building to be monitored is predicted, and relates to the building when a demand value exceeds contract power in the past At least one of a past data storage unit that acquires and stores environmental information, a weather information acquisition unit that acquires forecast information of weather conditions related to the location of the building, and a power regulation information acquisition unit that acquires power regulation information about the building The demand control apparatus according to claim 1, further comprising: Demand control device
A power consumption related information acquisition step for acquiring power consumption related information that affects demand control in a monitored building;
A demand prediction calculating step for calculating demand prediction information based on the power consumption related information acquired in the power consumption related information acquiring step;
Based on the demand prediction information calculated in the demand prediction calculation step, the equipment that controls the operation is determined, and the control details of the equipment are transmitted to the building information management server that the user of the connected building browses. A demand control method characterized by comprising: In the power consumption related information acquisition step,
A step of acquiring event information for which an increase or decrease in power consumption of the monitored building is predicted, a step of acquiring environmental information regarding the building when the demand value exceeds the contracted power in the past, and a weather condition regarding the position of the building 4. The demand control method according to claim 3, comprising any one of a step of acquiring the forecast information and a step of acquiring the power regulation information related to the building.

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