JP2022087224A - Management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contribute to a reduction in installation burden on a power generating unit using a renewable energy in a complex user facility.

SOLUTION: A management device 10 manages a power receiving system 11. The power receiving system 11 has a trunk 21, a plurality of branches 22, a first wattmeter 23, and a plurality of second wattmeters. The first wattmeter 23 detects a reception power amount that the entire collective user facility 12 receives from a power network 18 and the amount of power generated by a distributed power supply 14 and supplied to the power network 18. The complex user facility 12 includes a plurality of user facilities 13. The second wattmeters 24 each detect an individual power consumption of the user facility 13. The management device 10 calculates an individual amount charged by subtracting, for every user facility, an individual benefit to a user of each of the plurality of user facilities from an individual electricity charge.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a management device.

Due to the decrease in the amount of fossil fuel used, it is desired to popularize power generation equipment using renewable energy such as solar cell devices. Further, from the viewpoint of transmission stability and reduction of transmission loss, it is desired to consume the electric power generated by the renewable energy in the facility where the power generation is performed. For example, it is desired to popularize a net zero energy house (ZEH: net Zero Energy House) that makes the balance of primary energy consumption in a house zero. Under such circumstances, power generation facilities using renewable energy are becoming widespread in detached houses and the like.

In order to further popularize power generation facilities using renewable energy, it is also required to install them in complex consumer facilities such as apartment houses, which are composed of multiple consumer facilities. Therefore, a power supply system that enables installation of a power generation facility using renewable energy in a complex consumer facility has also been proposed (see Patent Document 1).

JP-A-2017-017779

However, in complex consumer facilities such as rental apartments, the direct benefit of the power generation facility may increase the installation burden on the owner of the power generation facility, and it is becoming more widespread in complex consumer facilities. It can be an obstacle. Therefore, it was difficult to popularize the Net Zero Energy House for complex consumer facilities.

Therefore, an object of the present disclosure made in view of the above-mentioned problems of the prior art is to provide a management device that contributes to reducing the installation burden of the owner of the power generation facility by the energy that can be generated in the complex consumer facility. It is in.

In order to solve the above-mentioned problems, the management device from the first viewpoint is
A main trunk connected to a distributed power source including a renewable energy power generation facility and a power network, and a plurality of branch trunks branching from the main trunk and connected to each of a plurality of consumer facilities included in the complex consumer facility, and the composite. A first watt-hour meter that detects the amount of power received from the power network and the amount of power generated by the distributed power source to the power network in the entire consumer facility, and the individual power consumption of each of the plurality of consumer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters for detecting an amount.
Obtaining the received power amount and the power supply power amount detected by the first watt-hour meter,
The individual power consumption amount detected by each of the plurality of second watt-hour meters is acquired, and the individual power consumption amount is acquired.
The received power amount, the power supply amount, the individual power consumption amount, the first rule for determining the charge for the received power amount, the second rule for determining the charge for the individual power consumption amount, and the charge for the power supply amount. Based on the third agreement that stipulates, the individual billing charges for each of the multiple consumer facilities are calculated.
Based on the received power amount and the first rule, the total power charge for the entire complex consumer facility is calculated.
Based on the power supply amount and the third rule, the sales price of the power generated by the distributed power source to the power grid is calculated.
Based on the individual power consumption amount and the second rule, the individual power charges for each of the plurality of consumer facilities are calculated.
The total beneficiary is calculated by subtracting the total power charge from all the individual power charges and adding the sales price.
Calculate the individual beneficiaries to the users of each of the plurality of consumer facilities to be distributed from the total beneficiaries.
The individual billing charge is calculated by subtracting the individual beneficiary to the user of each of the plurality of consumer facilities from the individual electric power charge for each customer facility.

For example, the management device according to the second aspect of the present disclosure is
A main trunk connected to a distributed power source including a renewable energy power generation facility and a power network, and a plurality of branch trunks branching from the main trunk and connected to each of a plurality of consumer facilities included in the complex consumer facility, and the composite. A first watt-hour meter that detects the amount of power received from the power network and the amount of power generated by the distributed power source to the power network in the entire consumer facility, and the individual power consumption of each of the plurality of consumer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters for detecting an amount.
Obtaining the received power amount and the power supply power amount detected by the first watt-hour meter,
The individual power consumption amount detected by each of the plurality of second watt-hour meters is acquired, and the individual power consumption amount is acquired.
The received power amount, the power supply amount, the individual power consumption amount, the first rule for determining the charge for the received power amount, the second rule for determining the charge for the individual power consumption amount, and the charge for the power supply amount. Based on the third agreement that stipulates, the individual billing charges for each of the multiple consumer facilities are calculated.
Based on the received power amount and the first rule, the total power charge for the entire complex consumer facility is calculated.
Based on the power supply amount and the third rule, the sales price of the power generated by the distributed power source to the power grid is calculated.
Based on the individual power consumption amount and the second rule, the individual power charges for each of the plurality of consumer facilities are calculated.
The total beneficiary is calculated by subtracting the total power charge from all the individual power charges and adding the sales price.
Multiply the total beneficiary by a coefficient of 1 or less to calculate the individual beneficiary of all consumer facilities.
The balance obtained by subtracting the individual beneficiaries of all the consumer facilities from the total beneficiaries is distributed to the first individual beneficiaries and the second individual beneficiaries according to a predetermined rule.

The management device according to the present disclosure configured as described above contributes to the reduction of the installation burden of the power generation facility by the renewable energy in the complex consumer facility.

It is a functional block diagram which shows the schematic structure of the complex consumer facility including the power receiving system managed by the management apparatus which concerns on this disclosure. It is an appearance example figure of the complex consumer facility of FIG. It is a flowchart for demonstrating the power consumption rate calculation process executed by the management part in this disclosure. It is a flowchart for demonstrating the power consumption rate averaging process executed by the management part in this disclosure. It is a flowchart for demonstrating the individual billing charge calculation process executed by the management part in this disclosure.

Hereinafter, embodiments of the management device to which the present disclosure is applied will be described with reference to the drawings.

As shown in FIG. 1, the complex consumer facility 12 provided with the power receiving system 11 managed by the management device 10 according to the first embodiment of the present disclosure includes a plurality of consumer facilities 13, a power receiving system 11, and a distributed type. Includes power supply 14. Further, the complex consumer facility 12 may include a common facility 15, a control device 16, and a third electric energy meter 17. In the present embodiment, the complex consumer facility 12 includes a common facility 15, a control device 16, and a third electric energy meter 17. In the following figures, the solid line connecting each functional block indicates the flow of electric power. Further, in FIG. 1, the broken line connecting each functional block indicates the flow of the control signal or the information to be communicated. The communication indicated by the broken line may be wired communication or wireless communication.

The complex consumer facility 12 is a building including a plurality of consumer facilities 13, such as an apartment house. In particular, the complex consumer facility 12 may be a low-rise building having a relatively small number of floors, such as a one-story building to a three-story building. The complex consumer facility 12 is owned by the owner and may be managed by the owner or a manager entrusted to the owner. The number of owners and managers may be singular or plural. Also, the owner and manager may be a natural person or a legal entity. Any electric power company may conclude a contract to collectively receive electric power to the entire complex consumer facility 12 with an electric power company that supplies electric power through the electric power grid 18. Any electric power company may be, for example, the owner and manager of the complex consumer facility 12, and the owner of the distributed power source 14 in the complex consumer facility 12.

The consumer facility 13 is a partial structure separately divided in the complex consumer facility 12, for example, each house in an apartment house. The consumer facility 13 is used by each user of the consumer facility 13. The user of each of the plurality of consumer facilities 13 may be, for example, the owner of the complex consumer facility 12, the lessee who has rented the consumer facility 13 from the owner, and the like. The user may be a natural person or a corporation. In the consumer facility 13, the door-to-door load 19 can receive electric power. The door-to-door load 19 includes, for example, a lighting fixture, a refrigerator, a television, an air conditioner, and the like used in each house of an apartment house.

The common facility 15 is a partial structure separated from the consumer facility 13 in the complex consumer facility 12, such as a corridor or stairs in an apartment house. The shared facility 15 is used by a person involved in the complex consumer facility 12, such as an owner, a manager, and a user of the complex consumer facility 12. In the shared facility 15, the shared load 20 can receive electric power. The shared load 20 includes, for example, a lighting fixture, an outdoor lamp, a septic tank blower power supply, and the like provided in the shared facility 15.

The power receiving system 11 may be, for example, a drop-in board. The power receiving system 11 includes a main trunk 21, a plurality of branch trunks 22, a first electric energy meter 23, and a plurality of second electric energy meters 24.

The main trunk 21 is directly or indirectly connected to the power grid 18 and the distributed power source 14, and can receive power from the power grid 18 and the distributed power source 14. Each of the plurality of branch trunks 22 is connected in series to the main trunk 21 and in parallel with each other. Therefore, the electric power received by the main trunk 21 can be distributed via a plurality of branch trunks 22 branched from the main trunk 21. Each of the plurality of branch branches 22 is connected to each of the plurality of consumer facilities 13. Further, a part of the plurality of branch trunks 22 may be connected to the common facility 15. In the present embodiment, a part of the plurality of branch trunks 22 is connected to the common facility 15. Each of the plurality of branch branches 22 may supply the distributed electric power to each consumer facility 13 and the common facility 15.

The first watt hour meter 23 is provided between the power grid 18 and the main trunk 21. The first electric energy meter 23 detects the amount of electric power purchased from the electric power network 18 by the complex consumer facility 12, that is, the amount of electric power received from the electric power grid 18 in the entire complex consumer facility 12. Further, the first watt-hour meter 23 may detect the amount of power supplied by the complex consumer facility 12 to sell the generated power of the distributed power source 14 to the power grid 18.

The first watt-hour meter 23 may detect the amount of received power and the amount of power supplied for each unit time such as 30 minutes. The first watt-hour meter 23 notifies an external device such as a control device 16 which will be described later of the detected power received power amount and power supply power amount. The notification to the external device by the first watt-hour meter 23 may be an output from the first watt-hour meter 23 to the external device. Alternatively, the notification to the external device by the first watt-hour meter 23 may be read by the external device from the first watt-hour meter 23 that stores the received power amount and the power supply power amount.

The first wattmeter 23 may be a wattmeter with a certification. The first electric energy meter 23 may be managed by an electric power company. A first breaker 25 may be provided in series between the first watt-hour meter 23 and the main trunk 21.

The plurality of second electric energy meters 24 are provided in each of the plurality of branch trunks 22. The plurality of second electric energy meters 24 each detect the individual electric energy consumption consumed by the individual load 19 of the plurality of consumer facilities 13. A part of the plurality of second watt-hour meters 24 may detect the individual power consumption consumed by the shared load 20 of the shared facility 15.

The second watt-hour meter 24 may detect the individual power consumption for each unit time, for example, 30 minutes. The second watt-hour meter 24 notifies the external device such as the control device 16 of the detected individual power consumption amount. The notification to the external device by the second watt-hour meter 24 may be an output from the second watt-hour meter 24 to the external device. Alternatively, the notification to the external device by the second watt-hour meter 24 may be read by the external device from the second watt-hour meter 24 that stores the individual power consumption amount.

The second wattmeter 24 may be a wattmeter with a certification. The second electric energy meter 24 may be managed by an electric power company that has a collective power receiving contract with the electric power company. A second breaker 26 may be provided in series between the second electricity meter 24 and the consumer facility 13.

The distributed power source 14 includes at least a renewable energy power generation facility. Renewable energy power generation equipment is equipment that generates power using energy that is recognized as permanently available, such as solar power generation equipment and wind power generation equipment. In the present embodiment, the renewable energy power generation facility is a photovoltaic power generation facility. The distributed power source 14 is provided in the complex consumer facility 12. For example, as shown in FIG. 2, the distributed power source 14 may be provided on the roof of the complex consumer facility 12. The distributed power source 14 may include other power generation equipment. Further, the distributed power source 14 may include an inverter for adjusting the electric power supplied to the complex consumer facility 12.

The third watt hour meter 17 is provided between the distributed power source 14 and the power receiving system 11. The third electric energy meter 17 detects the amount of power generated by the distributed power source 14 to supply the main trunk 21. The third watt hour meter 17 may detect the amount of power generated for each unit time, for example, 30 minutes. The third electric energy meter 17 notifies an external device such as the control device 16 of the detected generated electric energy amount. The notification to the external device by the third watt-hour meter 17 may be an output from the third watt-hour meter 17 to the external device. Alternatively, the notification to the external device by the third watt-hour meter 17 may be read by the external device from the third watt-hour meter that stores the generated power amount.

The third electric energy meter 17 may be managed by an electric power company having a collective power receiving contract with the electric power company. A third breaker 27 may be provided in series between the third watt-hour meter 17 and the main trunk 21.

The control device 16 includes one or more processors and memory. The processor may include a general-purpose processor that loads a specific program and performs a specific function, and a dedicated processor specialized for a specific process. The dedicated processor may include an application specific integrated circuit (ASIC). The processor may include a programmable logic device (PLD). The PLD may include an FPGA (Field-Programmable Gate Array). The control device 16 may be either a System (System-on-a-Chip) in which one or a plurality of processors cooperate, and a SiP (System In a Package).

The control device 16 receives, receives power, feeds power, and generates power detected by the first watt-hour meter 23, the plurality of second watt-hour meters 24, and the third watt-hour meter 17, respectively. Get the quantity. The control device 16 communicates with the management device 10 via the communication network 28. The control device 16 notifies the management device 10 of, for example, the acquired power received power amount and power supply power amount, a plurality of individual power consumption amounts, and the generated power amount. The notification from the control device 16 to the management device 10 may be an output from the control device 16 to the management device 10. Alternatively, the notification from the control device 16 to the management device 10 may be read by the management device 10 from the control device 16 that stores the received power amount and the power supply power amount, the plurality of individual power consumption amounts, and the generated power amount. ..

The amount of received power and the amount of power supplied, the amount of individual power consumption, and the amount of generated power are determined by the first watt-hour meter 23, the plurality of second watt-hour meters 24, and the third power meter without going through the control device 16. The electric energy meter 17 may notify the management device 10 directly. In the configuration in which the management device 10 is directly notified, the control device 16 does not have to be provided in the complex consumer facility 12.

The control device 16 may control the distributed power source 14, the door-to-door load 19, and the shared load 20.

The management device 10 includes one or more processors and memory. The processor may include a general-purpose processor that loads a specific program and performs a specific function, and a dedicated processor specialized for a specific process. The dedicated processor may include an application specific integrated circuit (ASIC). The processor may include a programmable logic device (PLD). The PLD may include an FPGA. The management device 10 may be either a SoC or a SiP in which one or a plurality of processors cooperate.

The management device 10 manages the power receiving system 11. The management device 10 acquires the received power amount and the power supply power amount detected by the first watt-hour meter 23. The management device 10 acquires individual power consumption detected by each of the plurality of second watt-hour meters 24. The management device 10 stores the first rule, the second rule, and the third rule in advance. The first rule defines the total power charge for the amount of power received. The second agreement stipulates individual power charges for individual power consumption. The third agreement stipulates the selling price for the amount of power supplied. The management device 10 for each of the plurality of consumer facilities 13 based on the acquired power received power amount, power supply power amount, and a plurality of individual power consumption amounts, the first rule, the second rule, and the third rule. Calculate the individual billing fee. The calculation of the individual billing fee by the management device 10 will be described in detail below.

The first rule is defined by, for example, an electric power company that supplies electric power via the electric power grid 18. As described above, the electric power company that concludes a collective power receiving contract with the electric power company may conclude a contract to collectively receive electric power to the entire complex consumer facility 12 with the electric power company. The first agreement may be set forth by the contract. Further, the first agreement may be based on a low voltage collective power receiving contract. The first agreement defines, for example, a basic charge and a unit charge per amount of power consumed.

The second agreement is, for example, defined by an electric power company that concludes a collective power receiving contract with an electric power company. Each user of the plurality of consumer facilities 13 may conclude a contract with an electric power company to receive electric power to the consumer facility 13 to be used. The second agreement may be stipulated by the contract. The second agreement may be the same for all users of the plurality of consumer facilities 13. Alternatively, the second convention may differ depending on the consumption pattern of the user. Alternatively, the second agreement may be the same as the charge agreement applied when the user independently concludes a power receiving contract with the electric power company.

The third agreement is defined by, for example, an electric power company that takes in electric power via the electric power grid 18. An electric power company that concludes a collective power receiving contract with an electric power company may conclude a contract with the electric power company to sell the electric power generated by the renewable energy power generation facility. The third agreement may be stipulated by the contract.

The management device 10 calculates the total power charge of the entire complex consumer facility 12 based on the amount of power received and the first rule. The management device 10 calculates individual power charges for each of the plurality of consumer facilities 13 and the common facility 15 based on the individual power consumption of the plurality of consumer facilities 13 and the common facility 15 and the second rule. The management device 10 calculates the sales price of the power generated by the distributed power source 14 to the power grid 18 based on the power supply amount and the third rule. The management device 10 calculates the total benefit by subtracting the calculated total power charge from the calculated total value of the individual power charges of all the consumer facilities 13 and the common facility 15 and adding the calculated sales price.

The management device 10 may add a reward determined for the reduction of the power consumption in the complex consumer facility 12 based on the demand response request to the total beneficiary. In the complex consumer facility 12, a demand response request may be received from an electric power company (supplier) that supplies electric power via the electric power network 18. The demand response is a power consumption reduction target set for each consumer facility 13 for the purpose of peak shift of power demand and the like. The management device 10 acquires, for example, from the electric power company via the communication network 28, and stores it in the built-in memory. When the management device 10 receives the notification indicating that the power consumption has been reduced, the management device 10 adds the reward determined for the demand response request to the total beneficiary. The reward for the demand response request may be determined by, for example, the electric power company.

By distributing the total beneficiary, the management device 10 calculates the individual beneficiary to each user of the electric power company (first beneficiary) and the plurality of consumer facilities 13 who conclude a collective power receiving contract with the electric power company. .. The management device 10 may calculate the individual beneficiary to the second beneficiary to be distributed from the total beneficiary. In the present embodiment, the management device 10 calculates the individual beneficiary to the second beneficiary. The second beneficiary is, for example, the owner of the complex consumer facility 12 when the owner of the distributed power source 14 is different from the owner of the complex consumer facility 12. In the present embodiment, the individual beneficiary of the second beneficiary may be the usage fee of the complex consumer facility 12 for installing the distributed power source 14.

The management device 10 distributes the total beneficiary to the individual beneficiary of the electric power company, the individual beneficiary of the second beneficiary, and the individual beneficiary of all the consumer facilities 13 according to various methods including the methods exemplified below. do. The individual beneficiary of all the consumer facilities 13 is the total of the individual beneficiaries of each user of all the consumer facilities 13. Further, the individual beneficiary of all the consumer facilities 13 may include the individual beneficiary to the owner of the common facility 15.

For example, the individual beneficiary of an electric power company may be based on which of the plurality of price ranges in which the individual beneficiary of the electric power company is set for each includes the total beneficiary. In addition, the individual beneficiary of the electric power company may be set to a fixed amount. Furthermore, the individual beneficiary of the electric power company may be zero. Further, the individual beneficiary of the electric power company may be the balance obtained by subtracting the individual beneficiary of the second beneficiary and the individual beneficiary of all the consumer facilities 13 from the total beneficiary. Further, the individual beneficiary of the electric power company may be a value obtained by multiplying the total beneficiary by a coefficient of 1 or less. The coefficient may be constant. Alternatively, the coefficient may decrease as the power consumption rate of the entire complex consumer facility 12 increases. When the coefficient is changed, an upper limit and a lower limit may be set.

The electric power consumption rate of the entire complex consumer facility 12 is the ratio of the electric energy consumed by using the electric power generated by the distributed power source 14 to the electric energy consumed by the entire complex consumer facility 12. The amount of power consumed by the entire complex consumer facility 12 is the total amount of individual power consumption detected by each of the plurality of second watt-hour meters 24. The amount of electric power consumed by the entire complex consumer facility 12 of the electric power generated by the distributed power source 14 is the individual electric energy detected by each of the plurality of second watt-hour meters 24 when the electric power is supplied to the electric power network 18. It is the total amount itself. Further, the amount of electric energy consumed by the entire complex consumer facility 12 of the electric energy generated by the distributed power source 14 is individually detected by each of the plurality of second watt-hour meters 24 when the electric energy is received from the electric energy network 18. It is a value obtained by subtracting the amount of received power from the amount of power consumed, or the amount of power generated detected by the third watt-hour meter 17. The management device 10 detects whether the power is being received from the power grid 18 or is being supplied to the power grid 18, and whether the first electric energy meter 23 is detecting the amount of received power or the amount of power to be supplied. Determine based on whether or not.

The management device 10 may calculate the power consumption rate every unit time of detection of the first watt-hour meter 23 and the second watt-hour meter 24.

When the unit time for calculating the power consumption rate is shorter than the target time for calculating the electricity rate, the management device 10 stores the calculated power consumption rate in the built-in memory and calculates all during the target time for calculating the electricity rate. The coefficient may be calculated using the value obtained by averaging the power consumption rates.

Alternatively, the management device 10 calculates the amount of electric power consumed by the entire complex consumer facility 12 of the electric power generated by the distributed power source 14 for each unit time of detection of the first electric energy meter 23 and the second electric energy meter 24. You can do it. Further, the management device 10 may calculate the amount of electric power consumed by using the electric power generated by the distributed power source 14 during the target time for calculating the electricity charge by accumulating the calculated electric energy. Further, the management device 10 consumes the electric energy generated by the distributed power source 14 in the target time for calculating the electricity charge and the electric energy consumed in the entire complex consumer facility 12 in the target time for calculating the electricity charge. The power consumption rate may be calculated based on the quantity, and the coefficient may be calculated based on the power consumption rate.

Further, for example, the individual beneficiary of the second beneficiary may be set to a fixed amount. Further, the individual beneficiary of the second beneficiary may be zero. Further, the individual beneficiary of the second beneficiary may be a value obtained by multiplying the total beneficiary by a coefficient of 1 or less and loading the fixed amount.

Further, for example, the individual beneficiary of all consumer facilities 13 may be based on which of the plurality of price ranges in which the individual beneficiaries of all consumer facilities 13 are defined for each include the total beneficiary. In addition, the individual beneficiary of all consumer facilities 13 may be set to a fixed amount. Further, the individual beneficiary of all the consumer facilities 13 may be the balance obtained by subtracting the individual beneficiary of the electric power company and the individual beneficiary of the second beneficiary from the total beneficiary. Further, the individual beneficiary of all the consumer facilities 13 may be a value obtained by multiplying the total beneficiary by a coefficient of 1 or less. The coefficient may be constant. Alternatively, the coefficient may increase as the power consumption rate of the entire complex consumer facility 12 increases. When the coefficient is changed, an upper limit and a lower limit may be set.

When the management device 10 calculates the individual beneficiaries of all the consumer facilities 13, the individual beneficiaries of all the consumer facilities 13 are distributed to calculate the individual beneficiaries of each of the plurality of consumer facilities 13. The management device 10 distributes the individual beneficiaries of all the consumer facilities 13 to the individual beneficiaries of each of the plurality of consumer facilities 13 according to various methods including the methods exemplified below.

For example, the individual beneficiary of each user of the plurality of consumer facilities 13 may be calculated by dividing the individual beneficiary of all the consumer facilities 13 by the number of all the consumer facilities 13. When the individual beneficiary is given to the owner of the shared facility 15, the individual beneficiary of each user of the plurality of consumer facilities 13 and the owner of the shared facility 15 is the individual beneficiary of all the consumer facilities 13. It may be calculated by dividing by the number of all customer facilities 13 and shared facilities 15. Further, the individual beneficiary of each user of the plurality of consumer facilities 13 may be calculated according to the floor area of each consumer facility 13. Further, the individual beneficiary of each user of the plurality of consumer facilities 13 may be calculated according to the power consumption rate of each consumer facility 13. For example, the individual benefits of the users of each of the plurality of consumer facilities 13 may be distributed so as to increase as the power consumption rate increases. Further, the individual beneficiary of each user of the plurality of consumer facilities 13 may be a value obtained by multiplying each individual electric power charge by a first coefficient (for example, 5%) of 1 or less. However, if the total value of the individual beneficiaries of each user of the plurality of consumer facilities 13 is larger than the total beneficiary, the value obtained by multiplying the second coefficient (for example, 3%) smaller than the first coefficient is used again. It may be calculated.

The electric power consumption rate in the consumer facility 13 is the ratio of the electric energy consumed by using the electric power generated by the distributed power source 14 to the electric energy consumed in the consumer facility 13. The amount of power consumed by the consumer facility 13 is the amount of individual power consumption detected by the second watt-hour meter 24. The amount of electric power consumed by the consumer facility 13 of the electric power generated by the distributed power source 14 is the individual electric energy amount detected by the second watt-hour meter 24 when the electric power is supplied to the electric power network 18. On the other hand, the amount of electric power consumed by the consumer facility 13 of the electric power generated by the distributed power source 14 is calculated by the following equation (1) when the electric power is received from the electric power grid 18.

In the equation (1), _sconeWk is the amount of electric power generated by the distributed power source 14 and consumed by each consumer facility 13. Further, _wconWk is the amount of electric power consumed by each consumer facility 13, that is, the amount of electric power detected by the second watt-hour meter 24 corresponding to the consumer facility 13. n is the number of consumer facilities 13 possessed by the complex consumer facility 12. When the complex consumer facility 12 calculates the individual beneficiary of the shared facility 15, n is the total number of the consumer facility 13 and the shared facility 15 owned by the complex consumer facility 12. The genW is the amount of power generated by the distributed power source 14 and supplied to the main trunk 21, that is, the amount of power generated detected by the third watt-hour meter 17.

The management device 10 determines the amount of power generated by the distributed power source 14 as the individual power consumption detected by each of the plurality of second watt-hour meters 24 instead of the amount of power detected by the third watt-hour meter 17. It may be calculated by subtracting the amount of received power detected by the first watt-hour meter 23 from the total. According to such a configuration, the amount of electric power generated by the distributed power source 14 can be recognized even if the third electric energy meter 17 is not provided.

The management device 10 may calculate the power consumption rate of the consumer facility 13 every unit time of detection of the first watt-hour meter 23 and the second watt-hour meter 24.

When the unit time for calculating the power consumption rate is shorter than the target time for calculating the electricity rate, the management device 10 stores the calculated power consumption rate in the built-in memory and calculates all during the target time for calculating the electricity rate. The value obtained by averaging the power consumption rates may be used for calculating the individual beneficiary of the user of the consumer facility 13.

Alternatively, the management device 10 calculates the amount of electric power consumed by each consumer facility 13 of the electric power generated by the distributed power source 14 for each unit time of detection of the first electric energy meter 23 and the second electric energy meter 24. It's okay. Further, the management device 10 may calculate the amount of electric power consumed by using the electric power generated by the distributed power source 14 during the target time for calculating the electricity charge by accumulating the calculated electric energy. Further, the management device 10 determines the amount of power consumed by the distributed power source 14 during the target time for calculating the electricity charge and the amount of power consumed by the consumer facility 13 during the target time for calculating the electricity charge. The electric energy consumption rate may be calculated based on the above, and the electric energy consumption rate may be used for calculating the individual beneficiary of the user of the consumer facility 13.

When the management device 10 calculates the individual beneficiary of the user of the consumer facility 13, the individual billing fee is calculated by subtracting the individual beneficiary from the individual electric power charge calculated for the user for each consumer facility 13. do. The management device 10 can output the calculated individual billing fee. The individual billing fee may be output as an image on the display. Further, the individual billing fee may be output as a printed matter using a printer. Further, the individual billing fee may be output as data to a settlement business operator such as a bank.

The management device 10 may output at least one of the power consumption rate in each of the plurality of consumer facilities 13 and the amount of power consumed by the distributed power source 14. At least one of the power consumption rate and the electric energy may be output as an image on a display, for example. Further, at least one of the power consumption rate and the electric energy may be output as a printed matter by using a printer. For example, the power consumption rate and at least one of the electric energy may be printed on an invoice to the user of the consumer facility 13 and presented to the user. Further, the management device 10 may convert the electric power amount into an index showing the CO2 reduction effect and the petroleum use reduction effect and output the power amount.

Next, the power consumption rate calculation process executed by the management device 10 in the present embodiment will be described with reference to the flowchart of FIG. The management device 10 calculates the individual beneficiary of the electric power company based on a coefficient that changes according to the electric power consumption rate, and the management device 10 changes the individual beneficiary of each user of the plurality of consumer facilities 13 according to the electric power consumption rate. Do this in at least one of the cases. In the management device 10, when the first electric energy meter 23, the second electric energy meter 24, and the third electric energy meter 17 detect the received electric energy amount, the power supply amount, the individual power consumption amount, and the generated electric energy amount, respectively. The power consumption rate calculation process is started.

In step S100, the management device 10 acquires the received power amount, the power supply power amount, the individual power consumption amount, and the generated power amount from the control device 16. After acquisition, the process proceeds to step S101.

In step S101, the management device 10 calculates the power consumption rate based on the received power amount, the power supply power amount, the individual power consumption amount, and the generated power amount acquired in step S100. The calculated power consumption rate is the power consumption rate of the entire complex consumer facility 12 or at least one of the plurality of consumer facilities 13. After the calculation, the process proceeds to step S102.

In step S102, the management device 10 stores the power consumption rate calculated in step S101 in the memory. After storage, the power consumption rate calculation process ends.

Next, the power consumption rate averaging process executed by the management device 10 in the present embodiment will be described with reference to the flowchart of FIG. The management device 10 calculates the individual beneficiary of the electric power company based on a coefficient that changes according to the power consumption rate, and the management device 10 changes the individual beneficiary of each user of the plurality of consumer facilities 13 according to the power consumption rate. Do this in at least one of the cases. The management device 10 starts the power consumption rate averaging process after the end of the target time for calculating the electricity rate.

In step S200, the management device 10 reads out the total power consumption rate of the target date and time for calculating the individual billing charge from the built-in memory. After reading, the process proceeds to step S201.

In step S201, the management device 10 averages the power consumption rate read in step S200. After averaging, the process proceeds to step S202.

In step S202, the management device 10 stores the power consumption rate averaged in step S201 in the built-in memory. After storage, the power consumption rate averaging process ends.

Next, the individual billing charge calculation process executed by the management device 10 in the present embodiment will be described with reference to the flowchart of FIG. The management device 10 starts the individual billing charge calculation process periodically or based on the input of the operator.

In step S300, the management device 10 acquires from the control device 16 the amount of power sold and the amount of power supplied on the target date and time for calculating the individual billing charge. Further, the management device 10 acquires from the built-in memory whether or not the reduction of the power usage fee for the demand response (DR) request is correct or not. After acquisition, the process proceeds to step S301.

In step S301, the management device 10 calculates the total power charge based on the first rule and the amount of received power acquired in step S300. After the calculation, the process proceeds to step S302.

In step S302, the management device 10 acquires the individual power consumption amount of the target date and time for calculating the individual billing charge from the control device 16. After acquisition, the process proceeds to step S303.

In step S303, the management device 10 calculates the individual power charge based on the second rule and the individual power consumption acquired in step S302. After the calculation, the process proceeds to step S304.

In step S304, the management device 10 has a third rule, the correctness of the reduction of the power supply amount acquired in step S300 and the power usage fee for the DR request, the total power charge calculated in step S301, and the individual calculated in step S303. Calculate the total beneficiary based on the electricity charge. After the calculation, the process proceeds to step S305.

In step S305, the management device 10 distributes the total beneficiary calculated in step S304 to the electric power company, the second beneficiary, and the users of the plurality of consumer facilities 13, and calculates the individual beneficiary. After the calculation, the process proceeds to step S306.

In step S306, the management device 10 calculates the individual billing charge for each consumer facility 13 by subtracting the individual beneficiary calculated in step S305 from the individual power charge calculated in step S303. Further, the management device 10 stores or outputs the calculated individual charge in the built-in memory as needed. After calculating the individual billing charge, the individual billing charge calculation process ends.

The management device 10 according to the present embodiment having the above configuration has received electric energy and individual power consumption from each of the first electric energy meter 23 and the plurality of second electric energy meters 24 in the power receiving system 11 having the distributed power source 14. The amount is acquired, and the individual billing charge for each of the consumer facilities 13 is calculated based on the received power amount, the power supply amount, the individual power consumption amount, the first rule, the second rule, and the third rule. The amount of power generated by the distributed power source 14 installed in the complex consumer facility 12 is reflected in the combined consumer facility 12 between the amount of received power and the amount of individual power consumption. Therefore, according to the above configuration, the management device 10 reflects the consumption of the electric power generated by the distributed power source 14 in each consumer facility 13 in the individual billing fee to each consumer facility 13 in the complex consumer facility 12. obtain. Generally, the power generation cost of the distributed power generation 14 based on the renewable energy power generation facility is lower than the power purchase fee of the electric power from the electric company where the user of the consumer facility 13 can purchase the electric power. Therefore, in the management device 10, each consumer facility 13 reflects the consumption of the electric power generated by the distributed power source 14 in the consumer facility 13 and the sale of electric power to the power grid in the individual billing fee, so that each consumer facility 13 is a complex consumer facility 12. Although it is a part of the above, it can provide a reduction in power cost due to the power of the distributed power source 14. Therefore, the management device 10 can provide the user of the consumer facility 13, who is not necessarily the owner of the distributed power source 14, with the reduction of the power cost by the distributed power source 14. By granting a reduction in power cost, the management device 10 improves the selling point of the consumer facility 13 when renting the consumer facility 13, and the consumer facility 13 is not rented like a vacant room in an apartment house. The possibility can be reduced. By reducing the possibility of not being rented, the management device 10 can reduce the lost profit due to not being rented to the owner or the management trustee of the complex consumer facility 12. Further, the management device 10 can reduce the lost profit due to the decrease in the consumption of the generated power of the distributed power source 14 due to not being rented to the electric power company. Therefore, the management device 10 can contribute to reducing the installation burden on the owner of the distributed power source 14. As a result, the management device 10 can contribute to the spread of the net zero energy house for the complex consumer facility 12.

In addition, the management device 10 of the present embodiment also calculates individual beneficiaries to the second beneficiary to be distributed from the total beneficiary. With such a configuration, the management device 10 installs the distributed power source 14 for the owner of the complex consumer facility 12 even if the owner of the complex consumer facility 12 is not the electric power company. May be motivated.

Further, the management device 10 of the present embodiment calculates the individual beneficiary according to the power consumption rate in each of the plurality of consumer facilities 13. With such a configuration, the management device 10 increases the profit that the user of the consumer facility 13 increases the power consumption rate of the distributed power source 14. Due to the increase in profit according to the power consumption rate, the management device 10 urges the user of the consumer facility 13 to operate the door-to-door load 19 during power generation of the distributed power source 14, and as a result, the distributed power source 14 It is possible to further promote the consumption of the electric power generated by the power generation in the complex consumer facility 12.

Further, the management device 10 of the present embodiment outputs the power consumption rate in each of the plurality of consumer facilities 13. With such a configuration, the management device 10 can make the user of the consumer facility 13 recognize the power consumption rate, and as a result, can further promote the consumption of the distributed power source 14. Further, the management device 10 of the present embodiment outputs the electric power consumed by the distributed power generation 14 in each of the plurality of consumer facilities 13, or an index converted from the electric energy. With such a configuration, the user of the consumer facility 13 can realize that it contributes to the reduction of the environmental load.

Further, the management device 10 of the present embodiment uses a reward determined for reducing the amount of electric power used for requesting a demand response in calculating the individual billing fee. With such a configuration, the management device 10 can also reflect the reward for reducing the power consumption by requesting the demand response in the calculation of the individual billing fee. Therefore, the management device 10 can make the user of the consumer facility 13 more aware of the benefits of the distributed power source 14.

Although the embodiments according to the present disclosure have been described based on various drawings and examples, it should be noted that those skilled in the art can easily make various modifications and modifications based on the present disclosure. Therefore, it should be noted that these modifications and modifications are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and a plurality of components can be combined or divided into one.

In the present disclosure, the description of "first", "second" and the like is an identifier for distinguishing the configuration. The configurations distinguished by the descriptions such as "first" and "second" in the present disclosure can exchange numbers in the configurations. For example, the first terminal can exchange the second terminal with the identifiers "first" and "second". The exchange of identifiers takes place at the same time. Even after exchanging identifiers, the configuration is distinguished. The identifier may be deleted. Configurations with the identifier removed are distinguished by a code. Based solely on the description of identifiers such as "1st" and "2nd" in the present disclosure, it shall not be used as an interpretation of the order of the configurations or as a basis for the existence of identifiers with smaller numbers.

10 Management device 11 Power receiving system 12 Complex consumer facility 13 Consumer facility 14 Distributed power source 15 Shared facility 16 Control device 17 Third watt-hour meter 18 Power grid 19 Household load 20 Shared load 21 Main trunk 22 Branch trunk 23 First watt-hour meter 24 2nd electricity meter 25 1st breaker 26 2nd breaker 27 3rd breaker 28 Communication network

Claims (2)

A main trunk connected to a distributed power source including a renewable energy power generation facility and a power network, and a plurality of branch trunks branching from the main trunk and connected to each of a plurality of consumer facilities included in the complex consumer facility, and the composite. A first watt-hour meter that detects the amount of power received from the power network and the amount of power generated by the distributed power source to the power network in the entire consumer facility, and the individual power consumption of each of the plurality of consumer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters for detecting an amount.
Obtaining the received power amount and the power supply power amount detected by the first watt-hour meter,
The individual power consumption amount detected by each of the plurality of second watt-hour meters is acquired, and the individual power consumption amount is acquired.
The received power amount, the power supply amount, the individual power consumption amount, the first rule for determining the charge for the received power amount, the second rule for determining the charge for the individual power consumption amount, and the charge for the power supply amount. Based on the third agreement that stipulates, the individual billing charges for each of the multiple consumer facilities are calculated.
Based on the received power amount and the first rule, the total power charge for the entire complex consumer facility is calculated.
Based on the power supply amount and the third rule, the sales price of the power generated by the distributed power source to the power grid is calculated.
Based on the individual power consumption amount and the second rule, the individual power charges for each of the plurality of consumer facilities are calculated.
The total beneficiary is calculated by subtracting the total power charge from all the individual power charges and adding the sales price.
Calculate the individual beneficiaries to the users of each of the plurality of consumer facilities to be distributed from the total beneficiaries.
A management device for calculating the individual billing charge by subtracting the individual beneficiary to the user of each of the plurality of consumer facilities from the individual electric power charge for each customer facility. A main trunk connected to a distributed power source including a renewable energy power generation facility and a power network, and a plurality of branch trunks branching from the main trunk and connected to each of a plurality of consumer facilities included in the complex consumer facility, and the composite. A first watt-hour meter that detects the amount of power received from the power network and the amount of power generated by the distributed power source to the power network in the entire consumer facility, and the individual power consumption of each of the plurality of consumer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters for detecting an amount.
Obtaining the received power amount and the power supply power amount detected by the first watt-hour meter,
The individual power consumption amount detected by each of the plurality of second watt-hour meters is acquired, and the individual power consumption amount is acquired.
The received power amount, the power supply amount, the individual power consumption amount, the first rule for determining the charge for the received power amount, the second rule for determining the charge for the individual power consumption amount, and the charge for the power supply amount. Based on the third agreement that stipulates, the individual billing charges for each of the multiple consumer facilities are calculated.
Based on the received power amount and the first rule, the total power charge for the entire complex consumer facility is calculated.
Based on the power supply amount and the third rule, the sales price of the power generated by the distributed power source to the power grid is calculated.
Based on the individual power consumption amount and the second rule, the individual power charges for each of the plurality of consumer facilities are calculated.
The total beneficiary is calculated by subtracting the total power charge from all the individual power charges and adding the sales price.
Multiply the total beneficiary by a coefficient of 1 or less to calculate the individual beneficiary of all consumer facilities.
A management device that distributes the balance obtained by subtracting the individual beneficiaries of all the consumer facilities to the first individual beneficiaries and the second individual beneficiaries according to a predetermined rule.

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