JP5411183B2 - Community energy management system and method - Google Patents

Description

  The present invention relates to a community energy management system and a community energy management method for managing energy of a community which is a set of consumers.

Nowadays, there is an increasing demand for a system that performs energy management of the entire community to realize CO ₂ saving and energy saving.

  For example, in Patent Document 1, based on a power generation plan of a power supply company, an environmental contribution ratio is calculated based on a ratio of electric power derived from new energy, nuclear power, hydropower, etc., and demand is induced in a time zone when the environmental contribution ratio is high. A power demand inducing method that gives such an incentive has been proposed.

  Further, in Patent Document 2, a distributed control device that creates an operation plan of a distributed power source and a power storage device included in a consumer group based on a control amount that is a time-series power price pattern, and adjusts supply power A distributed energy community control system consisting of a central controller has been proposed.

JP 2010-28879 A Japanese Patent No. 3980541

  In the power demand inducing method described in Patent Document 1, it is shown that power demand is induced in a time zone having a high contribution to the environment in power generation by a power supplier, but for reducing the total energy amount of demand. There was a problem that it was not possible to guide. In addition, there is a problem that energy sources and power storage devices owned by consumers are not utilized.

  Further, in the distributed energy community control system described in Patent Document 2, a customer group makes an optimal operation plan for a plurality of power price patterns, and compares the results of superimposing the plans to compare the entire community. Set the best price pattern for. Therefore, it is necessary to exchange information between the devices, and the calculation amount of the central control device also increases. Therefore, there is a problem that it is difficult to change the operation plan in accordance with fluctuations in demand within the customer group and fluctuations in output of natural energy.

The present invention has been made to solve the above-described problems, and community energy that realizes energy saving of the entire community including CO ₂ saving by inducing autonomous energy management of consumers. The purpose is to provide a management system and a community energy management method.

  The present invention is a community energy management system for performing energy management of a community formed by a plurality of consumers having a consumer energy management system, the communication unit communicating with the consumer energy management system, and the consumer And a target value setting unit for setting a first target value based on the exchanged power exchanged with the power system and a second target value based on the generated electric power generated by the consumer, A unit transmits the first and second target values to the consumer energy management system, and further receives a result value for the first and second target values from the consumer energy management system; An evaluation unit that calculates an evaluation value based on the result value is further provided.

  Moreover, the community energy management method concerning this invention is a community energy management system which performs energy management of the community formed by the some consumer which has a consumer energy management system, (a) The said consumer energy management system and A communication step; and (b) a first target value based on the exchanged power exchanged between the consumer and the power system, and a second target value based on the generated power generated by the consumer, respectively. And the step (a) transmits the first and second target values to the customer energy management system, and further from the consumer energy management system, the first and second target values. A step of receiving a result value, and (c) a step of calculating an evaluation value based on the result value of the consumer Characterized in that it comprises the al.

According to the present invention, a community energy management system that performs energy management of a community formed by a plurality of consumers having a consumer energy management system, the communication unit communicating with the consumer energy management system, A target value setting unit configured to set a first target value based on the power exchanged by the consumer with the power grid and a second target value based on the generated power generated by the consumer; The communication unit transmits the first and second target values to the consumer energy management system, and further receives a result value for the first and second target values from the consumer energy management system, and the demand By further providing an evaluation unit that calculates an evaluation value based on the result value of the house, the autonomous energy management of the consumer is induced. It is possible to realize energy saving of the entire community, including saving CO _2.

According to the community energy management method of the present invention, in the community energy management system for managing energy of a community formed by a plurality of consumers having a consumer energy management system, (a) the consumer energy management A step of communicating with the system; and (b) a first target value based on the exchanged power exchanged between the consumer and the power system, and a second target value based on the generated electric power generated by the consumer, Each of which is set, wherein the step (a) transmits the first and second target values to the consumer energy management system, and further from the consumer energy management system, the first and second targets. (C) calculating an evaluation value based on the result value of the consumer. By degree further comprising, induce autonomous energy management consumer, it is possible to realize energy saving of the entire community, including saving CO _2.

It is a figure which shows the whole structure of the community energy management containing the community energy management system and customer side energy management system by Embodiment 1 of this invention. It is a flowchart which shows the community energy management method by the community energy management system by Embodiment 1 of this invention. According to the first embodiment of the present invention, it is a diagram showing an example of a function for determining the CO ₂ emission amount evaluation value for customers of CO ₂ emissions performance community energy management system. It is a flowchart which shows the periodic process part in the community energy management method of the community energy management system by Embodiment 1 of this invention. It is a figure which shows the whole community energy management structure including the community energy management system and customer side energy management system by Embodiment 2 of this invention. It is a flowchart which shows the periodic process part in the community energy management method of the community energy management system by Embodiment 2 of this invention.

<A. Embodiment 1>
<A-1. Configuration>
FIG. 1 is a diagram showing an overall configuration of community energy management including a community energy management system 101 according to Embodiment 1 of the present invention, a customer 2000, and a customer 2001.

  The community energy management system 101 manages the energy of a plurality of consumers 2000 and 2001. Here, the consumer may be one in which each house is a unit, or one that is a collective house or a group of houses in a region. Or, it may be a facility such as an office building, factory, hotel, station, hospital, charging station for electric vehicles, etc., and has a customer energy management system 102 that manages energy for each unit. And The number of customers to be managed is not particularly limited to that shown in the figure.

  A set of these consumers is a community. This community may be a set of all consumers in a certain area, or a set of consumers who have concluded a contract with a business operator who operates the community energy management system 102.

  Moreover, all the consumers who belong to these communities may be connected by the distribution line of the electric power company, a private line, etc., and may be disperse | distributed to the distant point. However, it is assumed that the contract is made with one specific power supply company and belongs to the supply area of the power supply company.

  First, the consumer energy management system 102 installed on the consumer 2000 and the consumer 2001 side will be described. The customer 2000 and the customer 2001 include a power generation facility 1000 that generates power, a power storage facility 1001, and a load 1002. The customer energy management system 102 can have at least one of functions for controlling them. Moreover, it can have the meter 1003 which measures generation | occurrence | production and consumption of energy in a consumer.

  The consumer energy management system 102 has a planning function for creating an energy generation / consumption plan for the consumer, a display function for presenting energy information to the consumer, and a communication function for communicating with the community energy management system 101. It may be.

  Here, as the power generation equipment 1000 provided to the consumer, there are things such as a solar cell, a wind power generator, a fuel cell, and a diesel generator, and any one or a plurality of combinations may be used.

  In addition, the power storage facility 1001 is a facility that temporarily stores power, such as a storage battery or an electric vehicle, and that can supply power to the demand of a consumer, either of these facilities, or A plurality of combinations may be used. The generated power generated in the power generation facility 1000 and the exchanged power exchanged with the electric power system 2002 can be stored.

  The consumer energy management system 102 performs energy management by consuming and storing generated power and exchanged power.

  Furthermore, with regard to the control of the load 1002, for example, a function for performing on / off switching of a home appliance such as a water heater, an air conditioner, an audiovisual device, a lighting fixture, a mode change for changing a power consumption, a setting change or the like Corresponds.

  The meter 1003 having a measurement function includes a power generation amount generated by the power generation facility 1000 in the consumer, a power storage amount to the power storage facility 1001, a discharge amount, a load 1002 in the customer, a power reception amount from the connected power system 2002, and a power system. This is a function for measuring the amount of power transmitted to 2002 and receiving data.

  In addition, the planning function is a function for creating an adjustment plan for the operation of the power generation facility 1000 and the power storage facility 1001 and the load 1002 that minimizes the cost, for example, with respect to the assumed demand in a predetermined period. .

Next, the configuration of the community energy management system 101 will be described. The community energy management system 101 includes an operation setting management unit 111 that performs community energy operation setting management, a customer communication unit 112 that communicates with a plurality of customer energy management systems 101, and community energy that monitors the energy status of the entire community. Monitoring unit 113, consumer evaluation unit 114 that calculates an evaluation value based on the result value indicating the control result of the customer, demand for setting a first target value based on the received power and a second target value based on the generated power House CO ₂ emission target value setting unit 115, customer reward setting unit 116 for calculating rewards for consumers based on customer evaluation, input device 131 for setting data for each of these units, and displaying data A display device 132 for storing data and a database 133 for storing data.

<A-2. Operation>
FIG. 2 is a flowchart showing a community energy management method by the community energy management system 101.

  First, in the operation setting management unit 111, the operator of the community energy management system 101 sets an operation target and stores the operation target in the database 133 (step ST11).

Here, the operation target is, for example, a reduction amount of CO ₂ emission amount for a certain period of the entire community or a target value E _target of CO ₂ emission amount.

For example, when the average value E _ave of daily CO ₂ emissions in the community is used as the reference value E _{base for} reduction, first, the average value E _ave is calculated from data accumulated in the past. Then, the target value E _target of CO ₂ emission amount = average value E _{ave −reduction} amount E _reduction can be obtained by using the reduction amount E _reduction set by the operator.

Alternatively, the target value may be set by specifying a ratio such as X% reduction with respect to the reference value _Ebase . In that case, it can be calculated as target value E _target = reference value E _base × (1−X / 100).

Also here, it showed CO ₂ emission amount target value of 1 day as an example, to set a combination of such CO ₂ emission target value for certain times and CO ₂ emission amount target value of 1 day or several days May be.

In the following description, it is assumed that the target value E _{target of the} daily CO ₂ emission amount is determined by the operator.

When the operation target is set, the operation setting management unit 111 sets the evaluation function F (x) of the CO ₂ emission amount with respect to the actual CO ₂ emission amount of the consumer (step ST12).

  For example, in the case of the evaluation function as shown in FIG. 3, the parameters x1, x2, x3, x4, y1, a1, a2, a3, a4 are set. This evaluation function may be uniform in the community, or may be set for each consumer or according to the scale of the consumer.

The consumer communication unit 112 of the community energy management system 101 periodically communicates with the customer energy management system 102 using the operation target and the evaluation function set by the operation setting management unit 111 (step ST13). Through this operation, a target value for energy use of a consumer can be set in each consumer energy management system 102, and a cooperation request can be made for energy saving and CO ₂ saving for the entire community.

  FIG. 4 is a flowchart showing in detail the periodic process (step ST13) of FIG. Below, the said periodic process is demonstrated.

  First, the customer communication unit 112 is connected to each customer energy management system 102 via a communication line. Note that this communication line does not depend on a wired or wireless medium.

  The consumer communication part 112 receives the real-time energy information in each consumer from each consumer energy management system 102 with a fixed period (step ST20).

Specifically, the current value of the amount of power exchanged with the power system at the customer i at the current time s in the period Δs that is equal to or less than the target value transmission period Δt (hereinafter referred to as the power system transmission / reception power amount). P _tmpsys (i, s) is received.

The received data can be stored in the database 133. At the same time, the result of adding the current value P _tmpsys (i, s) received from time t−Δt to the current time s is added to the sum P _sumtmpsys (i) of the power grid transmission / reception power amount of the _customer i. Can be stored as These values are positive in the direction of receiving power from the power system 2002.

Further, as the power information in the consumer, the CO ₂ emissions generated when generating the unit power amount (CO ₂ emissions per unit power amount) are classified by type, and the CO at the time t of the consumer i _{2 Receives and stores} the current value P _tmpg (i, j, s) of the generated power amount for the emission type j. At the same time, the result of adding the current value P _tmpg (i, j, s) received from time t−Δt to the current time s is used as the type j of the CO ₂ emission amount at time t of the customer i. _Is stored as an added value P _sumtmpg (i, j, s) of the amount of generated power for.

At this time, since the CO ₂ emission amount per unit power amount is classified, for example, the power generation amount of the solar battery and the power generation amount of the wind power generator may be added together or may be handled separately. Note that the amount of electricity generated in the consumer does not include the amount of electricity discharged in the power storage facility.

At time t of the target value calculation timing, the addition results of the current value P _tmpsys (i, s) and the current value P _tmpg (i, j, s) received between time t−Δt and time t are respectively added values. Since P _sumtmpsys (i) and addition value P _sumtmpg (i, j, s) are stored, these are used as current energy information, and the power grid transmission / reception power amount P _sys (i, t), set as the amount of generated power P _g (i, j, t) for the type j of the CO ₂ emission amount at time t of the customer i (step ST21).

  Further, the consumer communication unit 112 receives the scheduled energy value and the adjustable amount at time t + Δt by time t from each consumer energy management system 102 (step ST41).

Specifically, similar to the above-described current energy information, for each type of CO ₂ emission amount per unit electric energy, the generated power planned amount P _gplan (for consumer i's CO ₂ emission amount (type j)) i, j, t + Δt) and an adjustable amount C _gup (i, j, t + Δt) that can be adjusted in the increasing direction of the power generation amount with respect to the generated power generation amount P _gplan (i, j, t + Δt). An adjustable amount C _gdown (i, j, t + Δt) in the decreasing direction is received. Here, the adjustable amount C _gup (i, j, t + Δt) is a non-negative number, and the adjustable amount C _gdown (i, j, t + Δt) is a non-positive number.

Further, the demand increases as an adjustable amount based on the planned power transmission / reception power P _sysplan (i, t + Δt) of the customer i and the control function and load control function of the power storage facility 1001 of each consumer energy management system 102 The direction adjustable amount C _lup (i, t + Δt) and the demand decreasing direction adjustable amount C _ldown (i, t + Δt) are received.

Here, when the power generation amount of the power generation facility 1000 in the consumer is not changed, and the amount of power stored in the customer's load 1002 and the power storage facility 1001 increases by the adjustable amount C _lup (i, t + Δt), the power grid 2002 _Therefore , the adjustable amount C _lup (i, t + Δt) and the adjustable amount C _ldown (i, t + Δt) are respectively increased from the power system 2002. This may be considered as an adjustment amount in the direction of increasing or decreasing the amount of power received. Here, the adjustable amount C _lup (i, j, t + Δt) is a non-negative number, and the adjustable amount C _ldown (i, j, t + Δt) is a non-positive number.

In addition, the consumer communication unit 112 sends and receives a target value D _sys (i, t + Δt) of CO ₂ emissions for power transmission / reception with the power system 2002, and a target value D _{g for} CO ₂ emissions for power generation facilities in the consumer. (I, t + Δt) is transmitted to each consumer (step ST46). Here, a target value based on power exchange with the electric power system 2002 is a first target value, and a target value based on power generation in the customer is a second target value.

Next, the community energy monitoring unit 113 _adds the current energy information of each customer received by the customer communication unit 112, and transmits and _{receives the} amount of power P _comsys (t) transmitted to and received from the power system 2002 in the entire community and unit power. The amount of generated power P _comg (j, t) for each type of CO ₂ emission per unit is calculated (step ST22). Here, these values are calculated by the following equations 1 and 2. These calculation results may be stored in the database 133 or may be temporarily stored on a memory.

Next, the CO ₂ emission amount E _com (t) of the entire community at time t is calculated (step ST23). For the amount of power transmitted and received from the power system 2002, the emission factor of the power supplier is used. In addition, when an emission coefficient changes with time, it calculates using the emission coefficient _EFsys (t) of the said time. If the emission coefficient of the CO ₂ emission amount (type j) per unit electric energy is defined as the emission coefficient EF (j), it can be calculated as shown in Equation 3.

However, when the power generation amount in the community is larger than the load, that is, when the transmission / reception power amount P _comsys (t) is negative, the number of CO ₂ emissions due to this surplus is It is calculated by the emission factor and passed on to the power supplier.

From the perspective of the power supplier, the amount of power generation will be reduced by that amount, so the CO ₂ emissions will not change when considering the entire system of power suppliers and consumers, and the supply and demand of the community will not change. Since the electric power system 2002 can remove the imbalance, the motivation for efficiently utilizing the energy generated in the community cannot be obtained.

Therefore, in order to consume the energy generated in the community as much as possible in the community, the CO ₂ emission amount E _com (t) of the entire community at time t is calculated as shown in Equation 4. Note that max (A, B) means the larger of A and B.

As a result, the amount of CO ₂ emissions transmitted to the electric power system 2002 is not deducted. Therefore, if surplus is generated in the community, the result is that the power is stored in the community or consumed. The energy generated within can be guided to be consumed within the community.

Next, the total CO ₂ emission amount E _comtotal (t) from the start time of the day to the current time t is calculated using _Equation 5.

  Next, the customer evaluation unit 114 determines the evaluation of the time from the current energy information of each customer received by the customer communication unit 112.

First, the CO ₂ emission amount E (i, t) at the time t of the customer i is calculated as shown in Equation 6 (step ST31).

Further, at time t-Delta] t, the target value of the power transmitting and receiving partial CO ₂ emissions and power system 2002 at time t communicated to the customer _{i D sys (i, t)} , power plant component CO ₂ emissions demand wife Compared with the target value D _g (i, t) of the quantity, using Equations 7 and 8, the error G _sys (i, t) and the error G _g (i, t) with each target value are calculated. For example, the information is stored in an information storage device such as the database 133 (step ST32).

The target value D _sys CO ₂ emissions by transmitting and receiving the electric power system 2002 (i, t), demand wife, how to calculate the target value D _g of the power plant component CO ₂ emissions (i, t) Will be described later.

Furthermore, based on the operation setting management unit 111 in the set evaluation function F (x), the coefficient K _sys predetermined, by using the coefficient K _g, the evaluation value at time t of the customer i H (i, t) Is stored in an information storage device such as the database 133. The method for calculating the evaluation value is not limited to the following.

Next, the consumer CO ₂ emission target value setting unit 115 adds up the planned energy values at the time t + Δt of each consumer received by the consumer communication unit 112, and obtains the planned energy values at the time t + Δt for the entire community. Calculate (step ST42).

Specifically, the scheduled power transmission / reception power amount P _comsysplan (t + Δt) of the entire community at time t + Δt, and the planned power generation amount P _comgplan (t + Δt) for each CO ₂ emission type per unit power amount, Calculation is performed by the following equations 10 and 11, respectively.

Further, the CO ₂ emission scheduled amount E _complan (t + Δt) of the entire community at the time t + Δt is calculated as shown in the equation 12 similarly to the equation 4 (step ST43).

Next, the daily CO ₂ emission target value E _target set by the operation setting management unit 111 and the start time of the day at time t set by the community energy monitoring unit 113 to the current time t The distribution value E _nexttarget (t + Δt) is set using the total CO ₂ emission amount E _comtotal (t) (step ST44).

For example, the total CO ₂ emissions can be generated at time t + Delta] t later to achieve the target value E _target of CO ₂ emissions per day, the target value E _target - total CO ₂ emissions _E comtotal (t) Therefore, this is distributed to the subsequent time using the past history data, and the distribution value is set as the distribution value E _nexttarget (t + Δt).

Thus, as a community, the CO ₂ emission reduction amount E _comreduction (t + Δt) with respect to the plan at time t + Δt becomes the CO ₂ emission planned amount E _complan (t + Δt) _{−distributed} value E _nexttarget (t + Δt).

Here, the reduction amount E _comreduction (t + Δt) is not necessarily a positive value. For example, like the case where the customer is kept less CO ₂ emissions to meet the demands by using the electricity charged in the power storage, a negative value by suppressing CO ₂ emissions above the target value E _target May be.

Hereinafter, the target value D _sys (i, t + Δt) of the CO ₂ emission amount by power transmission / reception with respect to the time t + Δt of each consumer and the target value D _g (i of CO ₂ emission amount by the power generation facility in the consumer) , T + Δt) are calculated (step ST45).

First, CO ₂ emissions expected value _{E sysplan (i, t + Δt} ) by transmitting and receiving the electric power system 2002 at time t + Delta] t of each consumer and, CO ₂ emissions expected value according to the power generation facility 1000 demand cottage _E gplanmax (i, t + Δt ) Are calculated as shown in Equation 13 and Equation 14, respectively.

First, when the reduction amount E _comreduction (t + Δt) is a negative value, control is performed such that the CO ₂ emission amount at time t + Δt is increased from the planned amount.

The target value D _sys (i, t + Δt) of CO ₂ emissions for power transmission / reception with the power system 2002 at the time t + Δt of the customer i and the target value D _g (i, t + Δt) of CO ₂ emissions for the power generation equipment in the customer ) Is determined by, for example, equations 15 and 16.

When the reduction amount E _comreduction (t + Δt) is non-negative, control is performed to reduce the CO ₂ emission amount at the time t + Δt from the scheduled amount.

When the scheduled power transmission / reception power amount P _comsysplan (t + Δt) of the entire community at time t + Δt is positive, that is, when receiving power from the power system 2002 when the entire community is viewed, transmission / reception of power to / from the power system 2002 at time t + Δt of each consumer. min CO ₂ emissions target value _{D sys (i, t + Δt} ) and the target value _{D g (i, t + Δt} ) of the power plant component CO ₂ emissions demand wife and, for example, several 17, by the equation shown in formula 18 decide.

In addition, when the power transmission / reception planned power amount P _comsysplan (t + Δt) of the entire community at time t + Δt is negative, that is, when the entire community is transmitted to the power system 2002, the power system 2002 with respect to the time t + Δt of each consumer transmitting and receiving component CO ₂ emissions target value _{D sys (i, t + Δt} ) and shows the target value _{D g (i, t + Δt} ) of the power plant component CO ₂ emissions demand wife and, for example, several 19 to several 20 Determined by the formula.

The target value D _sys (i, t + Δt) as the first target value of the CO ₂ emission amount for transmission / reception with the electric power system 2002 and the _second target value of the CO ₂ emission amount for the power generation equipment in the consumer The customer communication unit 112 transmits the target value D _g (i, t + Δt) to each customer (step ST46).

The processes of the customer communication unit 112, the community energy monitoring unit 113, the customer evaluation unit 114, and the customer CO ₂ emission target value setting unit 115 described so far are repeated.

  When the above-described operation is finished, next, the customer reward calculation operation in the customer reward setting unit 116 is started (see step ST14, FIG. 2).

  When a certain period, for example, one day has passed, the evaluation values of the consumers stored in the information storage device are totaled, and reward points for each customer are set. Specifically, the reward point R (i) of the customer i is calculated by the formula shown in Equation 21.

  The operator of the community energy management system 101 sets a reward for each customer i according to the reward point R (i). It should be noted that the contents of the reward and the setting method are preferably notified to the customer in advance.

  For example, if the content of the reward is an eco point, the setting method may be to give an eco point in proportion to the reward point, or to proportionally distribute the eco-point resources determined in advance according to the reward point. Alternatively, eco points may be set according to ranking by reward points.

  Moreover, although the form of this reward was shown as an eco point in the above example, it does not necessarily have to be money or money equivalent. Depending on the customer, the reward point R (i) may be negative, but it may be carried over to the next period or may be reset without giving a reward.

Incidentally, it is not essential to reward, the customer is autonomous with respect to evaluation value, saving CO ₂ for the entire community, induction may if implemented as aim to save energy.

By the community energy management system 101 as described above, the consumer energy management system 102 makes the above target value D _sys (i, t + Δt) of the power transmission / reception CO ₂ emission amount, and the target value D of the CO ₂ emission amount for the power generation equipment in the consumer. _The power generation equipment 1000, the power storage equipment 1001, and the load 1002 are controlled so that the evaluation value is increased based on _g (i, t + Δt) and a reward is obtained.

The target value transmitted to these consumers is set so as to approach the target value of CO ₂ emission of the entire community.

Therefore, because each consumer energy management system 102 suppress the CO ₂ emissions, for example, or perform control so as to effectively utilize natural energy less CO ₂ emissions, low CO ₂ emissions electricity is supplied It is possible to facilitate inducing the load 1002 during a certain time zone or performing charge / discharge control on the power storage facility 1001 in consideration of the loss of the power storage facility 1001.

Further, the consumer energy management system 102 notifies the consumer of the energy generation / consumption status of the consumer through a display terminal or the like, thereby prompting the consumer's living behavior to be changed to increase the evaluation value. As a result, the entire community has the effect of saving energy and reducing CO ₂ .

<A-3. Effect>
According to the first embodiment of the present invention, the first target value based on the power exchanged between the customer 2000 and the customer 2001 with the power system 2002, and the customer 2000 and the customer 2001 generate power. A consumer CO ₂ emission target value setting unit 115 as a target value setting unit for setting a second target value based on the generated electric power, and calculating an evaluation value based on the result values of the customers 2000 and 2001 By further providing a customer evaluation unit 114 as an evaluation unit that performs the energy management so that the customer 2000 and the customer 2001 autonomously approach the CO ₂ emission target value, CO ₂ and energy saving can be realized.

  Further, by evaluating the first target value and the second target value, there is an effect of making it easy to consume the power generated in the community within the community.

Moreover, according to Embodiment 1 concerning this invention, in the community energy management system, the customer evaluation part 114 as an evaluation part evaluates based on the difference with the 1st, 2nd target value of a result value. By calculating the value, it is possible to induce energy management so that the customer 2000 and the customer 2001 autonomously approach the CO ₂ emission target value in order to increase the evaluation value.

Further, according to the first embodiment of the present invention, in the community energy management system, the customer reward setting unit 116 as a reward setting unit that sets rewards for the customer 2000 and the customer 2001 according to the evaluation value is provided. In addition, in order to increase the reward, it is possible to induce energy management so that the customer 2000 and the customer 2001 autonomously approach the CO ₂ emission target value.

  Further, according to the first embodiment of the present invention, in the community energy management system, the customer 2000 and the customer 2001 include the power generation facility 1000 that generates power, the power generated by the power generation facility 1000, and the power system 2002. Power storage equipment 1001 that stores the power exchanged between them, and the consumer energy management system 102 consumes or stores the generated power and the received power based on the first and second target values, By performing energy management, it is possible to control the generated power generated in the community so that it can be easily consumed in the community, thereby realizing energy saving for the entire community.

In addition, according to the first embodiment of the present invention, (a) the step of communicating with the consumer energy management system 102, and (b) the exchange that the consumer 2000 and the consumer 2001 exchange with the power system 2002. A step of setting a first target value based on electric power and a second target value based on generated electric power generated by the customer 2000 and the customer 2001, wherein the step (a) includes the first and second targets. A value is transmitted to the customer energy management system 102, and further, a result value for the first and second target values is received from the customer energy management system 102. (c) Result values of the customers 2000 and 2001 to it, by further comprising the step of calculating an evaluation value, customer 2000, the energy management to customers 2001 approaches autonomously CO ₂ emission target value based on the Inducing the door, saving CO ₂ for the entire community, it is possible to realize energy saving.

  In addition, there is an effect of making it easy to consume the power generated in the community within the community.

<B. Second Embodiment>
<B-1. Configuration>
FIG. 5 is a diagram showing an overall configuration of community energy management including the community energy management system 101a, the customer 2000, and the customer 2001 according to the second embodiment of the present invention. In FIG. 1 and FIG. 5, the same reference numerals indicate the same or corresponding parts, and thus detailed description thereof is omitted.

  Similar to the system described in the first embodiment, the community energy management system 101a according to the present invention transmits the first and second target values to the consumer 2000 and the consumer 2001 in the community to manage the community energy. However, the community energy management system 101a may include a community power storage facility 142 connected to the power grid 2002.

  Moreover, you may have the community power generation equipment 141 connected to the electric power grid | system 2002. FIG. Furthermore, a community facility monitoring control unit 117 for monitoring and controlling these can be provided.

  For example, the community power generation facility 141 is a solar battery and the community power storage facility 142 is a storage battery, but there may be a plurality of units. Community power generation facility 141 and community power storage facility 142 are collectively referred to as community facility 143.

  The community energy management method of the community energy management system 101a is substantially the same as that in FIG. 2 of the first embodiment, but the part of the periodic processing (step ST13) is partially different, and will be described below.

<B-2. Operation>
FIG. 6 is a flowchart showing in detail the periodic processing (step ST13) portion of the community energy management system 101a. In FIG. 4 and FIG. 6, the same reference numerals indicate the same or corresponding parts, and detailed description thereof will be omitted.

  The community facility monitoring control unit 117 is connected to the community facility 143, and receives the energy real-time information of the community facility 143 at a constant cycle (step ST50).

Specifically, the generated power W _tmplocalg (u) of the community power generation facility 141 and the community power storage facility 142 at the current time u at the target value transmission period Δt and the period Δu less than the consumer real-time information collection period Δs. The charge / discharge power W _tmplocalbat (u) is received and stored.

At the same time, the amount of power calculated by the generated power W _tmplocalg (u) and the charge / discharge power W _tmplocalbat (u) from the time t−Δt to the current time u, the generated power W _tmplocalg (u) × Δu, the discharge power _W tmplocalbat (u) × Δu added, generated power amount of the sum P _Sumtmplocalg community generation facility 141, and calculates the additional value P _{Sumtmplocalbat} of charging and discharging electric energy community power storage 142. In the community power storage facility 142, the power generation (discharge) is positive and the charge is negative.

Next, as described in the first embodiment, the energy communication real-time information that the customer communication unit 112 receives from each customer energy management system 102, specifically, the cycle Δs that is equal to or less than the target value transmission cycle Δt, at the current time s, the customer i in the power system transmitting and receiving electric energy by receiving the current value P _tmpsys (i, s), the current value P received during the period from the time t-Delta] t to the current time s _tmpsys (i, s ) _Is stored as an added value P _sumtmpsys (i) of the power transmission / reception power amount of the _customer i.

Therefore, the community facility monitoring control unit 117 calculates an added value P _{sumtmpsystotal} of the power system transmission / reception power amount of the entire community at the time (step ST51). Specifically, it can be calculated by Equation 22.

  Next, at the current time s, a command is sent to the community power storage facility 142 so that the power transmission / reception power amount approaches the first target value at time t (step ST52).

Specifically, the target value D _sys (i, t) of the amount of CO ₂ emissions transmitted and received with the electric power system 2002 at the time t, which is transmitted to the consumers in the community at the time t−Δt. Since the total sum of the entire community is Σ_i D _sys (i, t), the first target value of the power transmission / reception power amount from time t−Δt to time t is Σ_i D _sys (i, t) / EF _sys (t ) Therefore, the residual R _{es with} respect to the first target value at time s can be calculated by linear approximation as shown in Equation 23.

In addition, when the community power generation facility 141 is made of natural energy such as a solar cell, the command value V (s) is expressed by the following equation 24 using the power generation power W _tmplocalg (u) of the community power generation facility 141 obtained most recently. The command value V (s) is commanded to the community power storage facility 142.

Next, at time t of the target value calculation timing, the result of adding the generated power W _tmplocalg (u) and the charge / discharge power W _tmplocalbat (u) received between time t−Δt and time t is the added value P Since these values are stored as _sumtmplocalg and addition value P _{sumtmplocalbat} , the power generation amount P _localg (t) of the community power generation facility at time t and the power generation amount P _localbat ( t) is set (step ST53).

Next, in the community energy monitoring unit 113a, the transmission / reception power amount P _comsys (t) with the power system 2002 in the entire community, and the generated power amount P _comg (j, t) for each CO ₂ emission type per unit power amount. ) Is the same as that described in the first embodiment (step ST22).

Next, the CO ₂ emission amount E _com (t) of the entire community at time t is calculated (step ST54). The amount of power transmitted to and received from the electric power system 2002 is obtained by subtracting the amount of power generated by the community facility 143 from the power generation portion of each consumer. Therefore, the CO ₂ emission amount E _com (t) of the entire community at time t is It can be calculated as 25. However, for the sake of simplicity, the community power generation facility 141 is assumed to be a power source having an emission coefficient of 0, and will be described below. In addition, when the emission coefficient of the community power generation equipment 141 is the emission coefficient EF _local , the following equation 26 is obtained.

Note that the total CO ₂ emission amount E _comtotal (t) from the start time of the day to the current time t can be calculated using the equation 5 shown in the first embodiment.

With the community energy management system 101a as described above, the control residual of the power exchanged with the power system 2002 can be controlled and suppressed with respect to the target value of the CO ₂ emission amount given to the consumer by the facility of the community. it can. Therefore, the energy generated in the community is easily consumed in the community.

<B-3. Effect>
According to the second embodiment of the present invention, in the community energy management system, a connection is made between the community power generation facility 141 that is connected to the power system 2002 and generates power, the power generated by the community power generation facility 141, and the power system 2002. By further comprising a community power storage facility 142 that stores the power to be exchanged in the community, a community power generation facility 141, and a community facility monitoring control unit 117 that controls the community power storage facility 142, the power generated in the community can be reduced. The amount sent to the electric power system 2002 can be reduced, and consumption within the community can be facilitated.

Further, according to the second embodiment of the present invention, in the community energy management system, the community facility monitoring control unit 117 performs the community power generation facility 141 and the community power storage based on the difference between the first target value and the result value. By controlling the facility 142, it is possible to induce energy management to autonomously approach the CO ₂ emission target value.

101, 101a Community energy management system, 102 Customer energy management system, 111 Operation setting management unit, 112 Customer communication unit, 113, 113a Community energy monitoring unit, 114 Customer evaluation unit, 115 Customer CO ₂ emission target value Setting unit 116 Customer reward setting unit 117 Community facility monitoring control unit 131 Input device 132 Display device 133 Database 141 Community power generation facility 142 Community power storage facility 143 Community facility 1000 Power generation facility 1001 Power storage Equipment, 1002 load, 1003 meter, 2000, 2001 Consumer, 2002 Power system.

Claims (7)

A community energy management system for managing energy of a community formed by a plurality of consumers having a consumer energy management system,
A communication unit communicating with the consumer energy management system;
A target value setting unit configured to set a first target value based on power exchanged between the customer and the power grid, and a second target value based on generated power generated by the consumer; ,
The communication unit transmits the first and second target values to the consumer energy management system, and further receives a result value for the first and second target values from the consumer energy management system,
Further comprising an evaluation unit that calculates an evaluation value based on the result value of the consumer,
Community energy management system. The evaluation unit calculates the evaluation value based on a difference between the result value and the first and second target values.
The community energy management system according to claim 1. According to the evaluation value, further comprising a reward setting unit for setting a reward for the consumer,
The community energy management system according to claim 1 or 2. A community power generation facility connected to the power system and generating power;
A community power storage facility for storing power generated by the community power generation facility and power exchanged with the power grid;
It further comprises a community facility control unit that controls the community power generation facility and the community power storage facility.
The community energy management system according to any one of claims 1 to 3. The community facility control unit controls the community power generation facility and the community power storage facility based on a difference between the first target value and the result value.
The community energy management system according to claim 4. The consumer is
Power generation equipment for generating power;
The power generated by the power generation facility, and a power storage facility for storing the power exchanged between the power system,
The consumer energy management system performs energy management by consuming or storing the exchanged power and the generated power based on the first and second target values,
The community energy management system according to any one of claims 1 to 5. In a community energy management system for managing energy of a community formed by a plurality of consumers having a consumer energy management system,
(A) communicating with the consumer energy management system;
(B) A step of setting each of a first target value based on the exchanged power exchanged with the power grid by the consumer and a second target value based on the generated power generated by the consumer. ,
The step (a) transmits the first and second target values to the consumer energy management system, and further receives a result value for the first and second target values from the consumer energy management system. And
(C) further comprising a step of calculating an evaluation value based on the result value of the consumer;
Community energy management method.

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