JP7274642B2 - Management device - Google Patents

Description

The present invention relates to a management device.

In order to reduce the amount of fossil fuels used, there is a demand for widespread use of power generation facilities using renewable energy such as solar cell devices. In addition, from the viewpoint of stability of power transmission and reduction of power transmission loss, it is desired that power generated by renewable energy be consumed at the facility where the power is generated. For example, there is a demand for the popularization of net zero energy houses (ZEHs) that make the balance of primary energy consumption in houses zero. Under these circumstances, power generation equipment using renewable energy is becoming popular in detached houses and the like.

For the further spread of power generation facilities using renewable energy, there is a demand for installation in complex consumer facilities such as collective housing, which are composed of a plurality of consumer facilities. Therefore, a power supply system has also been proposed that makes it possible to install power generation equipment using renewable energy in complex consumer facilities (see Patent Literature 1).

JP 2017-017779 A

However, in multi-user facilities such as rental-type collective housing, the installation burden on the owner of the power generation facility may become large for the direct benefit of the power generation facility, and the spread of multi-user facilities in the multi-user facility can be an obstacle. Therefore, it has been difficult to popularize the net zero energy house for complex consumer facilities.

Therefore, an object of the present disclosure, which has been made in view of the problems of the conventional technology as described above, is to provide a management device that contributes to reducing the installation burden on owners of power generation equipment using generatable energy in a complex consumer facility. It is in.

In order to solve the above-mentioned problems, the management device according to the first aspect is
A main trunk connected to a distributed power source including renewable energy power generation equipment and a power network, a plurality of branch trunks branching from the main trunk and connected to each of a plurality of customer facilities included in the complex customer facility, and the complex a first watt-hour meter for detecting the amount of power received from the power network in the entire consumer facility and the amount of power supplied to the power network from the power generated by the distributed power supply; and individual power consumption of each of the plurality of customer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters that detect the amount of
Acquiring the received power amount and the supplied power amount detected by the first watt-hour meter,
acquiring the individual power consumption detected by each of the plurality of second watt-hour meters;
the received power amount, the supplied power amount, the individual power consumption amount, a first rule that determines a charge for the received power amount, a second rule that determines a charge for the individual power consumption amount, and a charge for the supplied power amount Calculate the individual billing fee for each of the plurality of consumer facilities based on the third rule that stipulates
calculating an overall power charge for the entire complex consumer facility based on the received power amount and the first rule;
Based on the power supply amount and the third rule, calculate the sales price of the power generated by the distributed power source to the power network,
calculating an individual power rate for each of the plurality of consumer facilities based on the individual power consumption and the second rule;
Calculate the overall benefit by subtracting the overall power rate from all the individual power rates and adding the sales price,
calculating individual benefits to users of each of the plurality of consumer facilities, which are distributed from the overall benefits;
For each of the customer facilities, the individual billed charge is calculated by subtracting the individual benefit to the user of each of the plurality of customer facilities from the individual power charge.

For example, the management device according to the second aspect of the present disclosure
A main trunk connected to a distributed power source including renewable energy power generation equipment and a power network, a plurality of branch trunks branching from the main trunk and connected to each of a plurality of customer facilities included in the complex customer facility, and the complex a first watt-hour meter for detecting the amount of power received from the power network in the entire consumer facility and the amount of power supplied to the power network from the power generated by the distributed power supply; and individual power consumption of each of the plurality of customer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters that detect the amount of
Acquiring the received power amount and the supplied power amount detected by the first watt-hour meter,
acquiring the individual power consumption detected by each of the plurality of second watt-hour meters;
the received power amount, the supplied power amount, the individual power consumption amount, a first rule that determines a charge for the received power amount, a second rule that determines a charge for the individual power consumption amount, and a charge for the supplied power amount Calculate the individual billing fee for each of the plurality of consumer facilities based on the third rule that stipulates
calculating an overall power charge for the entire complex consumer facility based on the received power amount and the first rule;
Based on the power supply amount and the third rule, calculate the sales price of the power generated by the distributed power source to the power network,
calculating an individual power rate for each of the plurality of consumer facilities based on the individual power consumption and the second rule;
Calculate the overall benefit by subtracting the overall power rate from all the individual power rates and adding the sales price,
Multiplying the total benefit by a coefficient of 1 or less to calculate the individual benefit of all customer facilities,
The remainder obtained by subtracting the individual benefits of all the consumer facilities from the total benefit is distributed to the first individual benefit and the second individual benefit according to a predetermined rule.

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

1 is a functional block diagram showing a schematic configuration of a complex consumer facility including a power receiving system managed by a management device according to the present disclosure; FIG. FIG. 2 is an exemplary external view of the complex consumer facility of FIG. 1; 6 is a flowchart for explaining power consumption rate calculation processing executed by a management unit according to the present disclosure; 6 is a flowchart for explaining power consumption rate averaging processing executed by a management unit according to the present disclosure; 6 is a flowchart for explaining individual billing charge calculation processing executed by a management unit according to the present disclosure;

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

As shown in FIG. 1 , a complex consumer facility 12 provided with a power receiving system 11 managed by a 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 A power supply 14 is included. The complex consumer facility 12 may also include a shared facility 15 , a control device 16 and a third watt-hour meter 17 . In this embodiment, the complex consumer facility 12 includes a shared facility 15 , a control device 16 and a third watt-hour meter 17 . In the subsequent figures, solid lines connecting functional blocks indicate the flow of electric power. In FIG. 1, broken lines connecting functional blocks indicate the flow of control signals or communicated information. Communication indicated by dashed lines may be wired communication or wireless communication.

A complex customer facility 12 is a building, such as an apartment complex, that includes a plurality of customer facilities 13 . In particular, the multi-customer facility 12 may be a low-rise building having relatively few floors, such as one to three stories. A multi-customer facility 12 may be owned by an owner and managed by the owner or an administrator entrusted to the owner. Note that the number of owners and administrators may be singular or plural. Also, owners and managers may be natural or legal persons. Any utility may enter into a contract to bundle power to the entire multi-customer facility 12 with a power company that supplies power via power grid 18 . Any power utility may be, for example, an owner, manager of multiple customer facility 12 , and owner of distributed power source 14 at multiple customer facility 12 .

The customer facility 13 is a partial structure divided separately within the complex customer facility 12, for example, like each unit in an apartment complex. The customer facility 13 is used by a user of each customer facility 13 . The user of each of the plurality of customer facilities 13 may be, for example, the owner of the complex customer facility 12, or a lessee who has borrowed or leased the customer facility 13 from the owner. Also, the user may be a natural person or a legal entity. In the consumer facility 13, a door-to-door load 19 may receive power. The door-to-door load 19 includes, for example, lighting fixtures, refrigerators, televisions, air conditioners, etc. used in each unit of the collective housing.

The common facility 15 is a partial structure separated from the customer facility 13 within the complex customer facility 12, such as a corridor or stairs in an apartment complex. Shared facility 15 is used by persons involved in complex consumer facility 12 , such as owners, administrators, and users of complex consumer facility 12 . At shared facility 15, shared load 20 may receive power. The shared load 20 includes, for example, lighting fixtures, outdoor lights, and a septic tank blower power source provided in the shared facility 15 .

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

Mains 21 are directly or indirectly connected to power grid 18 and distributed power sources 14 and may receive power from power grid 18 and distributed power sources 14 . Each of the multiple branches 22 is connected in series to the main trunk 21 and in parallel with each other. Therefore, power received by the main trunk 21 can be distributed via a plurality of branch trunks 22 branching off from the main trunk 21 . Each of the plurality of branches 22 is connected to each of the plurality of consumer facilities 13 . Further, some of the multiple trunks 22 may be connected to the shared facility 15 . In this embodiment, some of the multiple trunks 22 are connected to the shared facility 15 . Each of the plurality of branches 22 can feed the distributed electric power to each consumer facility 13 and shared facility 15 .

The first watt-hour meter 23 is provided between the power network 18 and the trunk 21 . The first watt-hour meter 23 detects the amount of power purchased from the power network 18 by the complex consumer facility 12 , that is, the amount of power received from the power network 18 by 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 power generated by the distributed power supply 14 to the power network 18 .

The first watt-hour meter 23 may detect the amount of power received and the amount of power supplied per unit time such as 30 minutes, for example. The first watt-hour meter 23 notifies an external device such as the control device 16 to be described later of the detected amount of received power and amount of supplied power. The notification from the first watt-hour meter 23 to the external device may be 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 reading by the external device from the first watt-hour meter 23 that stores the amount of power received and the amount of power supplied.

The first power meter 23 may be a certified power meter. Note that the first watt-hour 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 trunk 21 .

The plurality of second watt-hour meters 24 are provided on each of the plurality of branches 22 . The plurality of second watt-hour meters 24 detect the individual power consumption consumed by the individual loads 19 of the plurality of consumer facilities 13, respectively. Some of the plurality of second watt-hour meters 24 may detect individual power consumption consumed by the shared load 20 of the shared facility 15 .

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

The second power meter 24 may be a certified power meter. Note that the second watt-hour meter 24 may be managed by an electric power company that concludes a bulk power receiving contract with the electric power company. A second breaker 26 may be provided in series between the second watt-hour meter 24 and the consumer facility 13 .

Distributed power source 14 includes at least renewable energy power generation equipment. Renewable energy power generation facilities are facilities that generate power using energy recognized as being permanently available, such as solar power generation facilities and wind power generation facilities. In this embodiment, the renewable energy power generation facility is a photovoltaic power generation facility. The distributed power source 14 is provided within 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. FIG. Distributed power source 14 may include other power generation equipment. Distributed power sources 14 may also include inverters to regulate the power supplied to multi-customer facility 12 .

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

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

Controller 16 includes one or more processors and memory. The processor may include a general-purpose processor that loads a specific program to perform a specific function, and a dedicated processor that specializes in specific processing. A dedicated processor may include an Application Specific Integrated Circuit (ASIC). The processor may include a programmable logic device (PLD). A PLD may include an FPGA (Field-Programmable Gate Array). Controller 16 may be either a System-on-a-Chip (SoC) with one or more processors working together, or a System In a Package (SiP).

The control device 16 controls the amount of received power and the amount of power supplied detected by the first watt-hour meter 23, the plurality of second watt-hour meters 24, and the third watt-hour meter 17, the plurality of individual power consumptions, and the generated power. 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 amount of power received and supplied, a plurality of individual power consumptions, and the amount of generated power. The notification from the control device 16 to the management device 10 may be 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, the power supply amount, the plurality of individual power consumptions, and the generated power amount. .

It should be noted that the amount of power received, the amount of power supplied, the plurality of individual power consumptions, and the amount of power generated are not controlled by the control device 16, but are measured by the first watt-hour meter 23, the plurality of second watt-hour meters 24, and the third watt-hour meter. The management device 10 may be notified directly from the power rain gauge 17 . In the configuration in which the management device 10 is notified directly, the control device 16 may not be provided in the complex consumer facility 12 .

Controller 16 may control distributed power source 14 , individual load 19 , and shared load 20 .

Management device 10 includes one or more processors and memory. The processor may include a general-purpose processor that loads a specific program to execute a specific function, and a dedicated processor that specializes in specific processing. A dedicated processor may include an application specific integrated circuit (ASIC). A processor may include a programmable logic device (PLD). A PLD may include an FPGA. The management device 10 may be either an SoC or a SiP with which one or more processors cooperate.

The management device 10 manages the power receiving system 11 . The management device 10 acquires the received power amount and the supplied power amount detected by the first watt-hour meter 23 . The management device 10 acquires the individual power consumption detected by the plurality of second power meters 24 . The management device 10 stores in advance a first convention, a second convention, and a third convention. The first rule defines the overall power rate for the amount of power received. The second rule defines individual power charges for individual power consumption. The third contract establishes a sales charge for the amount of power supplied. Management device 10 for each of a plurality of consumer facilities 13 based on the acquired amount of received power, amount of power supplied, and a plurality of individual power consumptions, a first rule, a second rule, and a third rule Calculate individual billing charges. Calculation of individual billing charges by the management device 10 will be described in detail below.

Note that the first convention is defined by, for example, an electric power company that supplies electric power via the electric power network 18 . An electric power company that concludes a bulk power supply contract with an electric power company can conclude a bulk power supply contract with the electric power company to collectively receive power to the entire complex consumer facility 12 as described above. The first contract may be defined by the contract. Further, the first contract may be based on a low voltage bulk power contract. The first rule defines, for example, a basic charge and a charge unit price per amount of power consumed.

Note that the second agreement is determined, for example, by an electric power company that concludes a bulk power receiving contract with the electric power company. Each user of a plurality of consumer facilities 13 can make a contract with an electric power company to receive power to the consumer facilities 13 that they use. A second contract may be defined by the contract. The second convention may be the same for all users of multiple customer facilities 13 . Alternatively, the second contract may be different depending on the consumption pattern of the user. Alternatively, the second contract may be the same as the charge contract that is applied when the user concludes a power receiving contract with an electric power company alone.

It should be noted that the third convention is determined by, for example, the electric power company that receives electric power through the electric power network 18 . An electric power company that concludes a bulk power supply 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. A third term may be defined by the contract.

The management device 10 calculates the overall power rate for the entire complex consumer facility 12 based on the received power amount and the first rule. Management device 10 calculates individual power rates for each of a plurality of consumer facilities 13 and shared facilities 15 based on the individual power consumption amounts and the second rule for the plurality of consumer facilities 13 and shared facilities 15 . The management device 10 calculates the sales price of the power generated by the distributed power source 14 to the power network 18 based on the power supply amount and the third rule. The management device 10 subtracts the calculated overall power charge from the calculated total value of the individual power charges of all the consumer facilities 13 and the common facility 15, and adds the calculated sales price to calculate the overall benefit.

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

By distributing the overall benefit, the management device 10 calculates the individual benefit to each user of the electric power company (first beneficiary) who concludes a lump-sum power receiving contract with the power company and the plurality of consumer facilities 13. . The management device 10 may calculate individual benefits to be distributed to the second beneficiaries from the overall benefit. In this embodiment, the management device 10 calculates the individual benefit 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 supply 14 is different from the owner of the complex consumer facility 12 . In this embodiment, the individual benefit of the second beneficiary may be the usage fee of the multi-customer facility 12 for installing the distributed power source 14 .

The management device 10 distributes the total benefit to the individual benefit of the electric power supplier, the individual benefit of the second beneficiary, and the individual benefit of all the customer facilities 13 according to various methods including the methods exemplified below. do. The individual benefit of all customer facilities 13 is the total individual benefit to each user of all customer facilities 13 . Further, individual benefits for all customer facilities 13 may include individual benefits for owners of shared facilities 15 .

For example, a utility's individual benefit may be based on which of a plurality of price ranges, each with a utility's individual benefit, includes the overall benefit. Also, the individual benefit of the electric power supplier may be set at a fixed amount. Furthermore, the individual benefit of the electric power supplier may be zero. Further, the individual benefit of the electric power supplier may be the remainder obtained by subtracting the individual benefit of the second beneficiary and the individual benefit of all the customer facilities 13 from the overall benefit. Also, the individual benefit of the electric power company may be a value obtained by multiplying the overall benefit by a coefficient of 1 or less. The factor may be constant. Alternatively, the coefficient may decrease as the power consumption rate of the entire complex consumer facility 12 increases. In addition, when changing the said coefficient, you may provide an upper limit and a lower limit.

The power consumption rate of the entire complex consumer facility 12 is the ratio of the amount of power consumed using the power generated by the distributed power supply 14 to the amount of power consumed by the entire complex consumer facility 12 . The amount of power consumed by the entire complex consumer facility 12 is the total of individual power consumption detected by each of the plurality of second watt-hour meters 24 . The amount of power consumed by the entire complex consumer facility 12 of the power generated by the distributed power supply 14 is the individual power consumption detected by each of the plurality of second watt-hour meters 24 when the power is supplied to the power network 18. It is the total amount itself. In addition, the amount of power consumed by the entire complex consumer facility 12 of the power generated by the distributed power supply 14 is the individual It is a value obtained by subtracting the amount of received power from the amount of power consumed, or the amount of generated power detected by the third watt-hour meter 17 . Note that the management device 10 detects whether power is being received from the power network 18 or is being supplied to the power network 18 by detecting whether the first watt-hour meter 23 detects the amount of power received or the amount of power supplied. determine based on whether

The management device 10 may calculate the power consumption rate for each unit time of detection by 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 apparatus 10 stores the calculated power consumption rate in the built-in memory, and stores the calculated power consumption rate in the internal memory. The coefficient may be calculated using the averaged power consumption rate.

Alternatively, the management device 10 calculates the amount of power generated by the distributed power supply 14 consumed by the entire complex consumer facility 12 for each unit time of detection by the first watt-hour meter 23 and the second watt-hour meter 24. You can Furthermore, the management device 10 may calculate the amount of power consumed using the power generated by the distributed power sources 14 during the target time for calculating the electricity rate by accumulating the calculated amounts of power. Furthermore, the management device 10 determines the amount of power consumed by using the power generated by the distributed power source 14 during the target time for calculating the electricity rate, and the power consumed by the entire complex consumer facility 12 during the target time for calculating the electricity rate. A power consumption rate may be calculated based on the amount, and a coefficient may be calculated based on the power consumption rate.

Also, for example, the individual benefit of the second beneficiary may be fixed at a fixed amount. Also, the individual benefit of the second beneficiary may be zero. Further, the individual benefit of the second beneficiary may be a value obtained by multiplying the overall benefit by a factor of 1 or less and loading the fixed amount.

Also, for example, the individual benefits of all customer premises 13 may be based on which of a plurality of price ranges for which the individual benefits of all customer premises 13 are defined, in which of which the overall benefit is included. Also, the individual benefits of all consumer facilities 13 may be set at a fixed amount. Also, the individual benefit of all consumer facilities 13 may be the remainder after subtracting the individual benefit of the electric power supplier and the individual benefit of the second beneficiary from the overall benefit. Further, the individual benefit of all consumer facilities 13 may be a value obtained by multiplying the overall benefit by a coefficient of 1 or less. The factor may be constant. Alternatively, the coefficient may increase as the power consumption rate of the entire complex consumer facility 12 increases. In addition, when changing the said coefficient, you may provide an upper limit and a lower limit.

After calculating the individual benefits of all the customer facilities 13 , the management device 10 distributes the individual benefits of all the customer facilities 13 to calculate the individual benefits to the respective users of the plurality of customer facilities 13 . The management device 10 distributes the individual benefits of all the customer facilities 13 to the individual benefits to the users of each of the plurality of customer facilities 13 according to various methods including the methods exemplified below.

For example, the individual benefits of each user of a plurality of customer facilities 13 may be calculated by dividing the individual benefits of all customer facilities 13 by the number of all customer facilities 13 . In addition, when giving individual benefits to the owner of the shared facility 15, the individual benefit of each user of the plurality of customer facilities 13 and the owner of the shared facility 15 is the individual benefit of all the customer facilities 13, It may be calculated by dividing by the number of all customer premises 13 and common premises 15 . Further, the individual benefit of each user of the plurality of customer facilities 13 may be calculated according to the floor area of each customer facility 13 . Further, the individual benefit of each user of the plurality of customer facilities 13 may be calculated according to the power consumption rate of each customer facility 13 . For example, the individual benefit of each user of the plurality of consumer facilities 13 may be distributed so as to increase as the power consumption rate increases. Furthermore, the individual benefit of each user of the plurality of consumer facilities 13 may be a value obtained by multiplying each individual power rate by a first coefficient of 1 or less (eg, 5%). However, if the total value of the individual benefits of each user of the plurality of consumer facilities 13 is greater than the total benefit, the value obtained by multiplying the second coefficient (for example, 3%) smaller than the first coefficient again, can be calculated.

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

In the expression (1), _sconWk is the amount of power consumed by each consumer facility 13 of the power generated by the distributed power source 14 . Also, _wconWk is the amount of power consumed by each consumer facility 13, that is, the amount of power detected by the second watt-hour meter 24 corresponding to the customer facility 13 in question. n is the number of customer facilities 13 that the complex customer facility 12 has. When the complex customer facility 12 calculates the individual benefit of the shared facility 15, n is the total number of the customer facilities 13 and the shared facilities 15 that the complex customer facility 12 has. genW is the amount of electric power generated by the distributed power supply 14 and supplied to the trunk 21 , that is, the amount of generated electric power detected by the third watt-hour meter 17 .

Note that the management device 10 calculates the amount of power generated by the distributed power supply 14 as the amount of individual power consumption detected by each of the plurality of second power meters 24 instead of the amount of power detected by the third power meter 17. It may be calculated by subtracting the received power amount 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 supply 14 can be recognized even if the third watt-hour meter 17 is not provided.

The management device 10 may calculate the power consumption rate of the consumer facility 13 for each unit time of detection by 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 apparatus 10 stores the calculated power consumption rate in the built-in memory, and stores the calculated power consumption rate in the internal memory. A value obtained by averaging the power consumption rate may be used to calculate the individual benefit of the user of the consumer facility 13 .

Alternatively, the management device 10 calculates the amount of power generated by the distributed power supply 14 and consumed by each consumer facility 13 for each unit time of detection by the first watt-hour meter 23 and the second watt-hour meter 24. you can Furthermore, the management device 10 may calculate the amount of power consumed using the power generated by the distributed power sources 14 during the target time for calculating the electricity rate by accumulating the calculated amounts of power. Furthermore, the management device 10 determines the amount of power consumed using the power generated by the distributed power supply 14 during the target time for calculating the electricity rate, and the amount of power consumed by the consumer facility 13 during the target time for calculating the electricity rate. Based on this, the power consumption rate may be calculated, and the power consumption rate may be used to calculate the individual benefit of the user of the consumer facility 13 .

After calculating the individual benefit of the user of the customer facility 13, the management device 10 subtracts the individual benefit from the individual power charge calculated for the user for each customer facility 13 to calculate the individual billed charge. do. The management device 10 can output the calculated individual billing charges. Individual billing charges may be output as an image on the display. In addition, the individual charges may be output as a printed matter using a printer. In addition, the individual billed charges may be output as data to a settlement company 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 consumed power amount of the power generated by the distributed power supply 14 . At least one of the power consumption rate and the power amount may be output as an image on a display, for example. Also, at least one of the power consumption rate and the power amount may be output as a printed matter using a printer. For example, at least one of the power consumption rate and the power amount may be printed on a bill or the like for the user of the consumer facility 13 and presented to the user. Furthermore, the management device 10 may convert the power consumption into an index indicating the CO2 reduction effect and the oil usage reduction effect, and output the index.

Next, power consumption rate calculation processing executed by the management apparatus 10 in this embodiment will be described using the flowchart of FIG. 3 . The management device 10 calculates the individual benefits of the electric power supplier based on a coefficient that changes according to the power consumption rate, and changes the benefits for each user of each of the plurality of consumer facilities 13 according to the power consumption rate. Execute in at least one case. When the first watt-hour meter 23, the second watt-hour meter 24, and the third watt-hour meter 17 detect the received power amount, the supplied power amount, the individual power consumption amount, and the generated power amount, Power consumption rate calculation processing is started.

In step S<b>100 , the management device 10 acquires the received power amount, the supplied 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 a power consumption rate based on the received power amount, the supplied power amount, the individual power consumption amount, and the generated power amount acquired in step S100. Note that the power consumption rate to be calculated is the power consumption rate of the entire complex consumer facility 12 or the power consumption rate of at least one of the plurality of customer facilities 13 . After the calculation, the process proceeds to step S102.

In step S102, the management device 10 causes the memory to store the power consumption rate calculated in step S101. After storing, the power consumption rate calculation process ends.

Next, power consumption rate averaging processing executed by the management device 10 in this embodiment will be described using the flowchart of FIG. 4 . The management device 10 calculates the individual benefits of the electric power supplier based on a coefficient that changes according to the power consumption rate, and changes the individual benefits of the users of the plurality of consumer facilities 13 according to the power consumption rate. Execute in at least one case. The management device 10 starts the power consumption rate averaging process after the end of the target time for calculating the electricity bill.

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

In step S201, management device 10 averages the power consumption rates read out 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 storing, the power consumption rate averaging process ends.

Next, the individual billing charge calculation process executed by the management apparatus 10 in this embodiment will be described using the flowchart of FIG. The management device 10 starts the individual billing fee calculation process periodically or based on the operator's input.

In step S<b>300 , the management device 10 acquires from the control device 16 the amount of power to be sold and the amount of power to be supplied for the target date and time for calculating the individual billed charge. In addition, the management device 10 acquires by reading from the built-in memory whether 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 rate based on the first contract and the received power amount acquired in step S300. After calculation, the process proceeds to step S302.

In step S<b>302 , the management device 10 acquires from the control device 16 the individual power consumption for the target date and time for the calculation of the individual billing charge. After acquisition, the process proceeds to step S303.

In step S303, the management device 10 calculates an individual power rate based on the second contract 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 determines the third rule, the power supply amount acquired in step S300 and whether or not the power usage fee is reduced in response to the DR request, the overall power rate calculated in step S301, and the individual power rate calculated in step S303. Calculate the overall benefit based on the electricity tariff. After the calculation, the process proceeds to step S305.

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

In step S306, the management device 10 calculates an individual billed charge for each consumer facility 13 by subtracting the individual benefit calculated in step S305 from the individual power charge calculated in step S303. Furthermore, the management device 10 stores or outputs the calculated individual charges in the built-in memory as necessary. After calculating the individual charge, the individual charge calculation process ends.

The management apparatus 10 according to the present embodiment configured as described above is configured to measure the amount of power received from each of the first power meter 23 and the plurality of second power meters 24 in the power receiving system 11 having the distributed power supply 14 and the individual power consumption. amount, and based on the received power amount, the supplied power amount, the individual power consumption amount, the first rule, the second rule, and the third rule, the individual charges for each of the customer facilities 13 are calculated. Between the received power amount and the individual power consumption amount, the consumption amount of power generated by the distributed power supply 14 installed in the complex consumer facility 12 is reflected in the complex consumer facility 12 . Therefore, with 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 rate to each consumer facility 13 in the complex consumer facility 12. obtain. In general, the cost of generating power from a distributed power source 14 based on a renewable energy power generation facility is lower than the purchase price of power from an electric company that users of the customer facility 13 may purchase power from. Therefore, the management device 10 reflects the consumption of the power generated by the distributed power source 14 in the consumer facility 13 and the power sales to the power network in the individual billing charges, so that each consumer facility 13 while still being part of the distributed power source 14 power can provide reduced power costs. Therefore, the management device 10 can reduce the power cost of the distributed power sources 14 even to users of the consumer facility 13 who are not necessarily the owners of the distributed power sources 14 . By providing a reduction in power cost, the management device 10 improves the selling point of the customer facility 13 when leasing the customer facility 13, and prevents the customer facility 13 from being rented like an empty room in a collective housing. can reduce the likelihood. By reducing the possibility of not being rented, the management device 10 can reduce the loss of profit due to not being rented to the owner or management trustee of the complex consumer facility 12 . In addition, the management device 10 can reduce the loss of profit due to a decrease in consumption of power generated by the distributed power supply 14 due to non-leasing to the 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 popularization of net-zero energy houses for the complex consumer facility 12 .

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

In addition, the management device 10 of the present embodiment calculates individual benefits according to the power consumption rate of each of the plurality of consumer facilities 13 . With such a configuration, the management device 10 increases the profit of the user of the customer facility 13 by increasing the power consumption rate of the distributed power supply 14 . Due to the increase in profit according to the power consumption rate, the management device 10 prompts the user of the customer facility 13 to operate the individual load 19 during the power generation of the distributed power source 14, and as a result, the distributed power source 14 can further promote consumption of the power generated by the complex consumer facility 12 .

Also, the management device 10 of the present embodiment outputs the power consumption rate of each of the plurality of consumer facilities 13 . With such a configuration, management device 10 can make users of consumer facility 13 aware of the power consumption rate, and as a result, can promote consumption of distributed power sources 14 . In addition, the management device 10 of the present embodiment outputs the power consumption of the power generated by the distributed power sources 14 in each of the plurality of consumer facilities 13 or an index converted from the power consumption. With such a configuration, the user of the consumer facility 13 can be made to realize that it contributes to the reduction of the environmental load.

In addition, the management device 10 of the present embodiment uses the reward determined for the reduction of power consumption for the demand response request in calculating the individual charge. With such a configuration, the management device 10 can also reflect rewards for reductions in power consumption in response to demand response requests in the calculation of individual billing charges. Therefore, the management device 10 can make the user of the consumer facility 13 more aware of the benefits of the distributed power supply 14 .

Although the embodiments according to the present disclosure have been described based on the 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 variations and modifications are included in the scope of the present invention. For example, functions included in each component can be rearranged so as not to be logically inconsistent, and multiple components can be combined into one or divided.

Descriptions such as “first” and “second” in the present disclosure are identifiers for distinguishing the configurations. Configurations that are differentiated in descriptions such as "first" and "second" in this disclosure may interchange the numbers in that configuration. For example, a first terminal can exchange identifiers "first" and "second" with a second terminal. The exchange of identifiers is done simultaneously. The configurations are still distinct after the exchange of identifiers. Identifiers may be deleted. Configurations from which identifiers have been deleted are distinguished by codes. The description of identifiers such as “first” and “second” in this disclosure should not be used as a basis for interpreting the order of the configuration or the existence of lower numbered identifiers.

10 Management Device 11 Power Receiving System 12 Complex Consumer Facility 13 Consumer Facility 14 Distributed Power Supply 15 Shared Facility 16 Control Device 17 Third Electric Energy Meter 18 Power Network 19 Door-to-House Load 20 Shared Load 21 Master 22 Branch 23 First Electric Energy Meter 24 second power meter 25 first breaker 26 second breaker 27 third breaker 28 communication network

Claims (2)

A main trunk connected to a distributed power source including renewable energy power generation equipment and a power network, a plurality of branch trunks branching from the main trunk and connected to each of a plurality of customer facilities included in the complex customer facility, and the complex a first watt-hour meter for detecting the amount of power received from the power network in the entire consumer facility and the amount of power supplied to the power network from the power generated by the distributed power supply; and individual power consumption of each of the plurality of customer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters that detect the amount of
Acquiring the received power amount and the supplied power amount detected by the first watt-hour meter,
acquiring the individual power consumption detected by each of the plurality of second watt-hour meters;
the received power amount, the supplied power amount, the individual power consumption amount, a first rule that determines a charge for the received power amount, a second rule that determines a charge for the individual power consumption amount, and a charge for the supplied power amount Calculate the individual billing fee for each of the plurality of consumer facilities based on the third rule that stipulates
calculating an overall power charge for the entire complex consumer facility based on the received power amount and the first rule;
Based on the power supply amount and the third rule, calculate the sales price of the power generated by the distributed power source to the power network,
calculating an individual power rate for each of the plurality of consumer facilities based on the individual power consumption and the second rule;
Calculate the overall benefit by subtracting the overall power rate from all the individual power rates and adding the sales price,
calculating individual benefits to users of each of the plurality of consumer facilities, which are distributed from the overall benefits;
A management device that calculates the individual billed charge by subtracting an individual benefit to a user of each of the plurality of consumer facilities from the individual power charge for each of the consumer facilities. A main trunk connected to a distributed power source including renewable energy power generation equipment and a power network, a plurality of branch trunks branching from the main trunk and connected to each of a plurality of customer facilities included in the complex customer facility, and the complex a first watt-hour meter for detecting the amount of power received from the power network in the entire consumer facility and the amount of power supplied to the power network from the power generated by the distributed power supply; and individual power consumption of each of the plurality of customer facilities. A management device that manages a power receiving system having a plurality of second watt-hour meters that detect the amount of
Acquiring the received power amount and the supplied power amount detected by the first watt-hour meter,
acquiring the individual power consumption detected by each of the plurality of second watt-hour meters;
the received power amount, the supplied power amount, the individual power consumption amount, a first rule that determines a charge for the received power amount, a second rule that determines a charge for the individual power consumption amount, and a charge for the supplied power amount Calculate the individual billing fee for each of the plurality of consumer facilities based on the third rule that stipulates
calculating an overall power charge for the entire complex consumer facility based on the received power amount and the first rule;
Based on the power supply amount and the third rule, calculate the sales price of the power generated by the distributed power source to the power network,
calculating an individual power rate for each of the plurality of consumer facilities based on the individual power consumption and the second rule;
Calculate the overall benefit by subtracting the overall power rate from all the individual power rates and adding the sales price,
Multiplying the overall benefit by a coefficient of 1 or less to calculate the individual benefit of all customer facilities,
A management device that distributes the remainder obtained by subtracting the individual benefits of all the consumer facilities from the total benefit to first individual benefits and second individual benefits according to a predetermined rule.

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