JP2013074760A - Electric power system for complex housing and control apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suitably control power supply when another power supply means used together with fuel batteries stops power supply.SOLUTION: A complex housing electric power system used in a complex housing 100 including 1xM residential areas (110-1 to 110-M) and a common area 120 includes: 1xN fuel batteries (111-1 to 111-N) installed so as to correspond to 1xN residential areas (N<M) (110-1 to 110-N) among the 1xM residential areas; a power distribution board 130 for sharing power generated by the 1xN fuel batteries (111-1 to 111-N) within the complex housing 100 and for compensating for the gap between the total power consumption in the complex housing 100 and the total power generation by the 1xN fuel batteries (111-1 to 111-N) by the power supplied from a system power source 10; and a control apparatus 140 for controlling power supply generated by the 1xN fuel batteries (111-1 to 111-N) to supply it preferentially to the common area 120 in the case of power outage in the system power source 10.

Description

  The present invention relates to an apartment house power system and a control device used in an apartment house including a plurality of living units that consume electric power.

  In recent years, fuel cells have been widely used as auxiliary power sources for electric power systems in houses. A fuel cell is a power generation device that generates electricity by a chemical reaction between hydrogen extracted from natural gas or the like and oxygen in the air. There is also known a cogeneration system in which heat generated during a chemical reaction is converted into hot water by heat exchange and stored in a hot water storage tank, and the hot water stored in the hot water storage tank is used for hot water supply.

  An apartment house power system has been proposed in which power is supplied by a fuel cell in an apartment house (such as a condominium) having a plurality of living units (see Patent Document 1).

  The collective housing power system described in Patent Document 1 is provided corresponding to a plurality of living units, and generates and supplies power to be supplied to the corresponding living units, and the power generated by the fuel cells. And a power network for supplying surplus power other than the power supplied to the corresponding living part to other living parts.

  Moreover, the collective housing electric power system of patent document 1 should stop the electric power generation of the fuel cell corresponding to the said living part, and supply it to the said living part when the electric energy which should be supplied to a living part is smaller than a threshold value Electric power is generated as surplus power in other fuel cells.

JP 2006-262697 A

  By the way, in an apartment house power system in which power is supplied by a fuel cell, power is not supplied by the fuel cell alone but can be supplied by using a fuel cell and a power supply means such as a grid in combination. It is considered realistic.

  However, in a configuration in which a fuel cell and other power supply means are used in combination, when the power supply of the other power supply means is stopped (for example, at the time of a power failure of the system), the power consumption of the entire apartment house with only the fuel cell It is difficult to cover Since the collective housing power system described in Patent Document 1 does not consider such emergency measures, there is a possibility that a resident may be trapped in an elevator during a power failure, for example.

  Then, an object of this invention is to provide the housing complex electric power system and control apparatus which can solve the subject mentioned above.

  In order to solve the above-described problems, the present invention has the following features.

  The characteristics of the apartment house power system according to the present invention are shared by the resident part of the M unit that consumes power (for example, the resident part {110-1 to 110-M}) and the resident of the resident part of the M unit. And an apartment power system used in an apartment house (for example, the apartment house 100) having a common part (for example, the common part 120) that consumes power, and N (N < M) N fuel cells (for example, fuel cells {111-1 to 111-N}) installed corresponding to the living part of the door (for example, the living part {110-1 to 110-N}); The electric power generated by the fuel cell is shared in the apartment house, and the shortage of the total electric power generation amount of the fuel cell relative to the total electric energy consumption of the apartment house is used as another power supply means (for example, a system power source) 10 and substation equipment 20) The power generated by the fuel cell is preferentially supplied to the shared unit when the power supply of the power distribution means (for example, the distribution panel 130) and the other power supply means is supplemented. And a control device (for example, control device 140) to be controlled.

  According to another feature of the apartment house power system according to the present invention, the control device includes first control means (for example, a distribution board control unit 144) for controlling the power distribution means, and the first control means. The control means is configured such that when the power supply of the other power supply means is stopped, the sum of the total power consumption of the living unit of the N units and the power consumption of the shared part is equal to or greater than the total power generation amount of the fuel cell. In some cases, with respect to the resident part of the (MN) house (for example, the resident part {110- (N + 1) to 110-M}) excluding the N resident part of the M resident part. The power distribution means is controlled so as to stop the supply of power generated by the fuel cell.

  According to another feature of the apartment house power system according to the present invention, the control device further includes second control means (for example, a load control unit 145) for controlling power consumption in the living unit of the M units. And the second control means is configured such that, even if the supply stop control is performed by the first control means, if the power consumed in the shared part is insufficient, Limit power consumption.

  According to another feature of the apartment house power system according to the present invention, each of the N residential units has an amount of power supplied to another residential unit or the common unit out of the power generated by the corresponding fuel cell. Measuring means (for example, a power selling meter 114), and the control device is configured to measure the selling power during a period in which the power consumption amount of the N residential units is limited by the second control means. The amount of electric power includes management means (for example, a power management unit 143) that manages separately from the amount of electric power sold in other periods.

  According to another feature of the apartment house power system according to the present invention, the control device includes first control means (for example, a distribution board control unit 144) for controlling the power distribution means, and the first control means. The control means is configured such that when the power supply of the other power supply means is stopped, the sum of the total power consumption of the living unit of the N units and the power consumption of the shared part is greater than the total power generation amount of the fuel cell. In the case where it is small, the surplus power obtained by subtracting the power consumption of each of the N residential units and the shared unit from the power generated by the fuel cell is excluded from the N residential units among the M residential units. In addition, surplus power supply control is performed to control the power distribution means so as to supply to the living part of the (MN) door (for example, the living part {110- (N + 1) to 110-M}).

  According to another feature of the apartment house power system according to the present invention, the control device further includes second control means (for example, a load control unit 145) for controlling power consumption in the living unit of the M units. When the surplus power supply control is performed by the first control means, the second control means is configured such that the total power consumption of the living part of the (MN) door is the power amount of the surplus power. The power consumption of the living part of the (MN) door is limited as follows.

  The characteristics of the control device according to the present invention are: a living unit of M units that consumes power; a shared unit that is shared and consumed by residents of the M unit of living units; and a living unit of the M units N fuel cells installed corresponding to the living part of N (N <M) houses, and the electric power generated by the fuel cell is shared in the apartment house and the total power consumption of the apartment house A control device for use in an apartment house power system, comprising: a power distribution unit that supplements a shortage of the total power generation amount of the fuel cell with the power supplied by the other power supply unit. The gist is to control the power generated by the fuel cell to be preferentially supplied to the common unit when the power supply is stopped.

  According to the present invention, there is provided an apartment house power system and a control device capable of performing appropriate power supply control when power supply is stopped by another power supply means used in combination with a fuel cell (for example, when a power failure occurs in a system). Can be provided.

It is a schematic block diagram of an apartment house to which an apartment house electric power system is applied. It is a block diagram of an apartment house electric power system. It is a block diagram of the living part where the fuel cell was installed. It is a block diagram of the living part where a fuel cell is not installed. It is a block diagram of a control apparatus. It is an operation | movement flowchart at the time of a power failure in an apartment house power system.

  An embodiment of the present invention will be described with reference to the drawings. In the drawings according to the following embodiments, the same or similar parts are denoted by the same or similar reference numerals.

  FIG. 1 is a schematic configuration diagram of an apartment house 100 to which the apartment house power system according to the present embodiment is applied. In the following FIGS. 1 to 4, the power line is indicated by a bold line, and the communication line is indicated by a broken line. The communication line is not limited to a wired line but may be wireless.

  As shown in FIG. 1, the apartment house 100 receives supply of low-voltage power from a substation facility 20 managed by a collective power receiving company. The substation facility 20 includes a power receiving unit 21 that receives supply of high-voltage power from a system power supply 10 managed by an electric power company, and a transformer unit that converts the high-voltage power supplied from the system power supply 10 into low-voltage power and supplies the low-voltage power to the apartment house 100 22.

  FIG. 2 is a block diagram of the apartment house power system according to the present embodiment.

  As shown in FIG. 2, the apartment house power system according to the present embodiment is based on the resident part {110-1 to 110-M} of M (M ≧ 2) houses that consume power and the residents of the apartment house 100. It corresponds to the shared part 120 that is shared and consumes power, and the residential part {110-1 to 110-N} of N (N <M) of the residential part {110-1 to 110-M} of M units. For sharing the power generated by the N fuel cells {111-1 to 111-N} and the N fuel cells {111-1 to 111-N} installed in the apartment house 100 A panel 130 and a control device 140 that performs various controls are included.

  Each of the M residential units {110-1 to 110-M} is connected to the distribution board 130 via the power line, and is connected to the control device 140 via the communication line.

  In N living units {110-1 to 110-N}, N fuel cells {111-1 to 111-N} that supply electric power to the corresponding living units 110 are installed. In detail, the fuel cell 111-1 is installed in the living part 110-1, and the fuel cell 111-2 is installed in the living part 110-2. Residential part {110- (N + 1) ~ 110 of (M-N) house except the residential part {110-1 ~ 110-N} of N units out of the residential part {110-1 ~ 110-M} of M units. -M} is not provided with the fuel cell 111.

  Each of the N residential units {110-1 to 110-N} consumes power generated by the corresponding fuel cell 111 and power supplied via the distribution board 130. In this embodiment, each of the N residential units {110-1 to 110-N} preferentially consumes the power generated by the corresponding fuel cell 111. And when there is a deficiency in the power generated by the corresponding fuel cell 111, the deficiency is covered by the power supplied via the distribution board 130. On the other hand, when there is surplus in the power generated by the corresponding fuel cell 111, the surplus (surplus power) is output to the distribution board 130.

  Each of the living units {110- (N + 1) to 110-M} of the (MN) door consumes power supplied through the distribution board 130 because the fuel cell 111 is not installed. The configuration of the living unit 110 will be described later.

  The fuel cell 111 is, for example, a solid oxide fuel cell (SOFC), and generates power by a chemical reaction between hydrogen extracted from natural gas or the like and oxygen in the air, and outputs the generated power. The fuel cell 111 has the highest energy conversion efficiency when the power generation operation is performed with the rated output power amount. In other words, when the fuel cell 111 performs a power generation operation with an output power amount smaller than the rated output power amount, the energy conversion efficiency is lowered. Therefore, the rated output power amount is the optimum power generation amount of the fuel cell 111. In the present embodiment, each of the fuel cells {111-1 to 111-N} performs a constant output operation with an optimum power generation amount.

  The shared unit 120 is connected to the distribution board 130 via the power line and is connected to the control device 140 via the communication line. The shared unit 120 includes, for example, an entrance unit (such as an automatic door) of the apartment house 100 and an elevator. The shared unit 120 consumes power supplied through the distribution board 130.

  The distribution board 130 is connected to the substation facility 20 through the power line, is connected to the living unit 110 and the common unit 120 through the power line, and is connected to the control device 140 through the communication line. The distribution board 130 distributes the electric power (low-voltage power) supplied from the substation facility 20 to the living unit 110 and the common unit 120.

  When the total power generation amount of the fuel cell {111-1 to 111-N} is insufficient with respect to the total power consumption amount of the apartment house 100, the distribution board 130 converts the shortage power to other power supply means. It is comprised so that it may supplement with the electric power supplied from (transformer equipment 20).

  In the present embodiment, the distribution board 130 is configured to provide fuel to the living unit 110 when there is a shortage of power generated by the corresponding fuel cell 111 for the living unit 110 where the fuel cell 111 is installed. By supplying power from the other living part 110 where the battery 111 is installed, the power for the shortage is covered. If there is still a shortage, the power from the substation facility 20 is supplied.

  In addition, the distribution board 130, when there is a surplus in the power generated by the corresponding fuel cell 111 for the living part 110 where the fuel cell 111 is installed, the surplus power is transferred to the other living part 110. By supplying, the electric power generated by the fuel cell 111 is configured to be shared by the living units {110-1 to 110-M}.

  The distribution board 130 includes a power supply stop relay 131 provided for each living part 110. The power supply stop relay 131 is normally in a conductive state (on state), but switches to a non-conductive state (off state) in accordance with control from the control device 140. When the power supply stop relay 131 is in an off state, the residence 110 corresponding to the power supply stop relay 131 receives power from the substation facility 20 and the other residence 110 where the fuel cell 111 is installed. Power is not supplied.

  The control device 140 corresponds to an energy management system (EMS) for performing energy management in the apartment house 100. In the present embodiment, the control device 140 monitors the state (power consumption and the like) of the living unit 110, the shared unit 120, and the distribution board 130, or the living unit 110, the shared unit 120, and the distribution board. Control of each of 130 is performed. The configuration of the control device 140 will be described later.

  In such an apartment house power system, the number N of fuel cells 111 installed in the apartment house 100 is determined by the base power consumption of the apartment house 100 and the power generation efficiency of the N fuel cells {111-1 to 111-N}. It is determined according to the optimal power generation amount that is optimal. Specifically, the installed number N of fuel cells 111 is determined so that the total power generation amount when the fuel cell 111 generates power with the optimal power generation amount is equivalent to the base power consumption amount of the apartment house 100.

  Here, the base power consumption amount of the apartment house 100 is the minimum electric energy consumed in the apartment house 100. For example, the base power consumption is always consumed, and is determined by the sum of the minimum value of the power consumption of the shared unit 120 and the minimum value of the power consumption of each living unit 110. The minimum value of the power consumption amount of the living unit 110 corresponds to the power consumption amount of a load (such as a refrigerator) that needs to be continuously operated in the living unit 110. The optimum power generation amount of the fuel cell 111 is the rated output power amount of the fuel cell 111 as described above. Therefore, assuming that the rated output power amounts of the fuel cells {111-1 to 111-N} are equal, the base power consumption amount of the apartment house 100 is X [W], and the rated output power amount of the fuel cell 111 is Y. Assuming [W], the number N of fuel cells 111 installed in the apartment house 100 is a value obtained by dividing X by Y (excluding the remainder).

  Thus, the number N of installed fuel cells 111 is set so that the total power generation amount when the fuel cell 111 generates power with the optimal power generation amount (rated output power amount) is equal to the base power consumption amount of the apartment house 100. Therefore, even if each of the fuel cells {111-1 to 111-N} performs a constant output operation with the optimum power generation amount, the total power generation amount of the fuel cells {111-1 to 111-N} is calculated. Can be consumed within.

  However, if the installation number N of the fuel cells 111 is determined in this way, it cannot be expected that the total power consumption of the housing complex 100 will be sufficiently covered only by the total power generation amount of the fuel cells {111-1 to 111-N}. For this reason, when the total power generation amount of the fuel cell {111-1 to 111-N} is insufficient with respect to the total power consumption amount of the apartment house 100, the power for the shortage is supplied from the substation facility 20. To cover.

  Next, the structure of the residence part 110 is demonstrated. FIG. 3 is a block diagram of the living part 110 in which the fuel cell 111 is installed.

  As shown in FIG. 3, living unit 110 includes a fuel cell 111, a hot water tank 112, a plurality of loads {113-1 to 113-n}, a power sale meter 114, and a power purchase meter 115. .

  The fuel cell 111 is, for example, an SOFC, and generates power by a chemical reaction between hydrogen extracted from natural gas or the like and oxygen in the air, and outputs the generated power. As described above, the fuel cell 111 performs a constant output operation with the optimum power generation amount (rated output power amount).

  The hot water storage tank 112 stores the exhaust heat generated during power generation of the fuel cell 111 as hot water by heat exchange for hot water supply in the living area 110. The greater the amount of power generated by the fuel cell 111, the more hot water is stored in the hot water storage tank 112. Therefore, the fuel cell 111 performs a constant output operation with the optimum power generation amount, so that the living unit 110 where the fuel cell 111 is installed The amount of hot water can be increased.

  The load 113 is a device that consumes the power from the fuel cell 111 (and the power from the distribution board 130), and is, for example, a refrigerator, an air conditioner, illumination, a television receiver, or the like. Air conditioners, television receivers, etc. are devices that do not operate continuously, but since refrigerators are devices that need to operate continuously, the amount of power consumed by the refrigerator when calculating the above-mentioned base power consumption used. In the present embodiment, the load 113 is connected to the control device 140 via a communication line and can receive control from the control device 140. The load 113 is configured to be switchable from the normal mode to the low power consumption mode in accordance with control from the control device 140. However, when a dedicated EMS (so-called HEMS) is installed in the living part 110, the load 113 may receive control from the control device 140 via the HEMS.

  The power sale meter 114 is installed on a power line between the fuel cell 111 and the load 113 and the distribution board 130. The power sale meter 114 is connected to the control device 140 via a communication line. The power sale meter 114 measures and measures the amount of power output from the fuel cell 111 to the distribution board 130 (that is, the amount of power supplied to the other living unit 110 or the common unit 120) as the amount of sold power. Accumulate (integrate) the amount of power sold. In addition, the power sale meter 114 outputs the stored power sale power amount to the control device 140 via the communication line.

  The electricity purchase meter 115 is installed on a power line between the fuel cell 111 and the load 113 and the distribution board 130. The electricity purchase meter 115 is connected to the control device 140 via a communication line. The power purchase meter 115 measures the amount of power supplied from the distribution board 130 to the load 113 as the amount of purchased power, and accumulates (integrates) the measured amount of purchased power. Moreover, the power purchase meter 115 outputs the stored purchased power amount to the control device 140 via the communication line.

  FIG. 4 is a block diagram of the living part 110 where the fuel cell 111 is not installed.

  As shown in FIG. 4, the living part 110 is different from the living part 110 in FIG. 3 in that it does not have a fuel cell 111, a hot water tank 112, and a power sale meter 114. Other configurations are the same as those of the living unit 110 of FIG.

  Next, the configuration of the control device 140 will be described. FIG. 5 is a block diagram of the control device 140.

  As illustrated in FIG. 5, the control device 140 includes a communication unit 141 and a processing unit 146. The communication unit 141 communicates with each of the living unit 110, the shared unit 120, and the distribution board 130 via a communication line. The processing unit 146 is configured using a CPU and a memory, and configures various functional units described later by executing a program stored in the memory.

  The processing unit 146 includes an acquisition unit 142, a power management unit 143, a distribution board control unit 144, and a load control unit 145.

  The acquisition unit 142 acquires various types of information from each of the living unit 110, the shared unit 120, and the distribution board 130. For example, the acquisition unit 142 periodically acquires the amount of electric power sold and purchased from each of the residential units {110-1 to 110-N} where the fuel cell 111 is installed, and the residential unit where the fuel cell 111 is not installed The amount of purchased power is periodically acquired from each of {110− (N + 1) to 110−M}.

  The power management unit 143 stores and manages the amount of electric power sold and the amount of electric power purchased by the acquisition unit 142 for each resident unit 110. The information managed by the power management unit 143 is used, for example, by the collective power receiving company to settle the electricity bill for each resident unit 110.

  The distribution board control unit 144 and the load control unit 145 perform control for giving priority to the power supply to the shared unit 120 when the power supply from the substation facility 20 is stopped (that is, during a power failure). This control will be described later.

  Next, the operation | movement at the time of a power failure in the apartment house electric power system which concerns on this embodiment is demonstrated. FIG. 6 is an operation flow diagram at the time of a power failure in the apartment house power system according to the present embodiment. This flow is periodically performed when the control device 140 detects a power failure. The control device 140 detects a power failure based on information from the distribution board 130 or information from an external network (not shown).

  As shown in FIG. 6, in step S <b> 11, the acquisition unit 142 determines the total power consumption of the N residential units {110-1 to 110 -N} where the fuel cell 111 is installed and the power consumption of the common unit 120. And the total power generation amount of the fuel cells {111-1 to 111-N}. Then, the sum of the total power consumption of the residential unit {110-1 to 110-N} of N units and the power consumption of the common unit 120 is calculated as the total power generation amount of the fuel cell {111-1 to 111-N}. Compare.

  The sum of the total power consumption of the residential unit {110-1 to 110-N} of N units and the power consumption of the common unit 120 is equal to or greater than the total power generation amount of the fuel cell {111-1 to 111-N}. In the case (step S12; YES), in step S12, the distribution board control unit 144 determines that the fuel cell 111 is not installed (MN) with respect to the occupancy {110- (N + 1) to 110-M} of the house. Supply stop control for controlling the distribution board 130 is performed so as to stop the supply of electric power generated by the individual fuel cells {111-1 to 111-N}. Specifically, the distribution board control unit 144 controls to turn off the power supply stop relay 131 corresponding to each of the living units {110- (N + 1) to 110-M} of the (MN) door. . Thereby, rather than the power supply to the resident part {110- (N + 1) to 110-M} of the (MN) house, the N resident part {110-1 to 110-N} and the common part 120 are supplied. Priority can be given to power supply.

  In step S <b> 14, the load control unit 145 determines whether the amount of power supplied to the shared unit 120 is sufficient. As a specific determination, whether or not it is sufficient to measure or calculate the power amount required for the shared unit 120 in advance and store it, and compare the supplied power amount with the stored power amount. Determine whether.

  When the amount of power supplied to the shared unit 120 is insufficient (step S14; NO), in step S15, the load control unit 145 uses the power consumption of the N residential units {110-1 to 110-N}. Limit. Specifically, the load control unit 145 controls each load 113 provided in each of the N fuel cells {111-1 to 111-N} to be switched from the normal mode to the low power consumption mode. Thereby, priority can be given to the power supply to the common use part 120 rather than the power supply to the residence part {110-1 to 110-N} of N units.

  On the other hand, in step S12, the sum of the total power consumption of the N residential units {110-1 to 110-N} and the power consumption of the common unit 120 is the fuel cell {111-1 to 111-N}. If the total power generation amount is less than the total power generation amount, in step S16, the distribution board control unit 144 generates N residential units {110-1 to 110 from the power generated by the N fuel cells {111-1 to 111-N}. -N} and the surplus power obtained by subtracting the power consumption of each shared unit 120 from the M residential units {110-1 to 110-M}, the N residential units {110-1 to 110-N} Surplus power supply control is performed to control the distribution board 130 so as to be supplied to the living units {110- (N + 1) to 110-M} of the removed (MN) doors. As specific control, when it is difficult to supply all (MN) doors, control is performed to stop supply to other than X doors that have been prioritized. Or, although it is not the control of the distribution board 130, in the (MN) door, the use of home appliances is restricted (for example, only the refrigerator can be used), and the control is performed such that the sum of the power consumption is equivalent to the surplus power May be.

  Thereby, not only the power supply to the residential unit {110-1 to 110-N} of N units and the common unit 120, but also to the residential unit {110- (N + 1) to 110-M} of (MN) units. It is also possible to supply power.

  In step S <b> 17, the load control unit 145 performs such surplus power supply control, and the total power consumption of the (MN) house occupancy {110− (N + 1) to 110−M} is the amount of surplus power. As described below, the power consumption amount of the living part {110- (N + 1) to 110-M} of the (MN) house is limited. Specifically, the load control unit 145 responds to the amount of surplus power among the loads 113 provided in each of the living units {110- (N + 1) to 110-M} of the (MN) door. The number of loads 113 is controlled to be switched from the normal mode to the low power consumption mode. Thereby, the electric energy of surplus electric power and the total electric power consumption of the residence part {110- (N + 1) -110-M} of (MN) door can be made equivalent.

  The power sale meter 114 and / or the power management unit 143 manages the amount of power sold in each of the N residential units {110-1 to 110-N} in consideration of such power failure control. In the present embodiment, the power sale meter 114 and / or the power management unit 143 includes a normal power sale power amount, a power sale power amount during a power failure, and a power sale power amount during a period in which the power consumption amount is limited during a power failure, Are managed separately. By managing in this way, the power selling power charge differs between the amount of power sold during normal times, the amount of power sold during power outages, and the amount of power sold during periods when power consumption is limited during power outages. be able to. For example, a collective power receiving company that settles the electricity bill for each resident section 110 increases the amount of power sold during a power outage compared to the amount of power sold during normal times, and the amount of power consumed during a power outage compared to the amount of power sold during a power outage The amount of electric power sold during the period when the power is limited can be increased.

  As mentioned above, although this invention was described by embodiment, it should not be understood that the description and drawing which form a part of this indication limit this invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  In the embodiment described above, an example in which each fuel cell 111 performs a constant output operation with an optimum power generation amount has been described. However, each fuel cell 111 controls the power generation amount according to the load power consumption amount (load follow-up control). Also good.

  Further, in the embodiment described above, the fuel cell 111 is installed inside the living unit 110, but may be installed outside the living unit 110.

  Further, in the above-described embodiment, the hot water storage tank 112 is provided for each fuel cell 111 (for each living part 110). However, the plurality of fuel cells 111 (the plurality of living parts 110) share one hot water tank. But you can.

  In the above-described embodiment, an example has been described in which the apartment house 100 is supplied with low-voltage power from the substation facility 20 managed by the collective power receiving company. Low voltage power may be supplied from the power supply 10 to the apartment house 100. Moreover, a solar cell and / or a storage battery may be installed in the apartment house 100, and the solar cell and / or the storage battery may be connected to the distribution board 130.

  Thus, it should be understood that the present invention includes various embodiments and the like not described herein.

  DESCRIPTION OF SYMBOLS 10 ... System power supply, 20 ... Substation equipment, 21 ... Power receiving part, 22 ... Transformer part, 100 ... Apartment house, 110 ... Residential part, 111 ... Fuel cell, 112 ... Hot water tank, 113 ... Load, 114 ... Electric power selling meter, DESCRIPTION OF SYMBOLS 115 ... Electric power purchase meter, 120 ... Shared part, 130 ... Distribution board, 131 ... Relay for electric power supply stop, 140 ... Control apparatus, 141 ... Communication part, 142 ... Acquisition part, 143 ... Power management part, 144 ... Power distribution Panel control unit, 145 ... load control unit, 146 ... processing unit

Claims (7)

An apartment power system for use in an apartment house having a resident part of M units that consumes power and a shared part that consumes and consumes electricity shared by residents of the resident part of the M units,
N fuel cells installed corresponding to N (N <M) living units among the M living units,
The electric power generated by the fuel cell is shared in the apartment house, and the electric power supplied by the other electric power supply means supplies the shortage of the total electric power generation amount of the fuel cell with respect to the total electric energy consumption of the apartment house. Power distribution means to supplement,
A control device that controls to preferentially supply the power generated by the fuel cell to the shared unit when the power supply of the other power supply means is stopped;
An apartment house power system characterized by comprising: The control device has first control means for controlling the power distribution means,
The first control means is configured such that when the power supply of the other power supply means is stopped, the sum of the total power consumption of the living unit of the N units and the power consumption of the shared part is the total power generation of the fuel cell. When the amount is equal to or greater than the amount, the supply of electric power generated by the fuel cell is stopped with respect to the (MN) occupancy of the M occupants excluding the N occupants. Controlling the power distribution means;
The apartment house electric power system according to claim 1 characterized by things. The control device further includes second control means for controlling power consumption in the living part of the M units,
The second control means is configured such that, even if the supply stop control is performed by the first control means, if the power consumed in the shared part is insufficient, the power consumption of the N living parts Limit,
The collective housing electric power system according to claim 2 characterized by things. Each of the N residential units includes a measuring unit that measures the amount of power supplied to the other residential unit or the common unit out of the electric power generated by the corresponding fuel cell,
The control device includes a managing unit that manages the power sale power amount during a period in which the power consumption amount of the N occupant is limited by the second control unit separately from the power sale power amount during other periods. Including,
The collective housing power system according to claim 3. The control device has first control means for controlling the power distribution means,
The first control means is configured such that when the power supply of the other power supply means is stopped, the sum of the total power consumption of the living unit of the N units and the power consumption of the shared part is the total power generation of the fuel cell. The surplus power obtained by subtracting the power consumption of each of the N residential units and the shared unit from the power generated by the fuel cell when the amount is smaller than the amount is set to the N residential units among the M residential units. Excessive power supply control for controlling the power distribution means to supply to the living part of the (MN) door excluding the part is performed.
The apartment house electric power system according to claim 1 characterized by things. The control device further includes second control means for controlling power consumption in the living part of the M units,
In the second control unit, when the surplus power supply control is performed by the first control unit, the total power consumption of the living part of the (MN) door is less than the power amount of the surplus power. In order to limit the power consumption of the living part of the (MN) door,
The collective housing power system according to claim 5. Residential section of M units that consumes power, a shared section that is shared by residents of the resident section of M units and consumes power, and a resident unit of N (N <M) out of the resident units of M units N fuel cells installed corresponding to the above, and the power generated by the fuel cell are shared in the apartment house, and the shortage of the total power generation amount of the fuel cell with respect to the total power consumption of the apartment house A control device used in an apartment power system having power distribution means for supplementing power with power supplied by other power supply means,
When the power supply of the other power supply means is stopped, the power generated by the fuel cell is controlled to be preferentially supplied to the shared unit.
A control device characterized by that.

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