JP6029570B2

JP6029570B2 - Power supply system

Info

Publication number: JP6029570B2
Application number: JP2013251837A
Authority: JP
Inventors: 仁志池澤; 佳宣高山
Original assignee: 三井ホーム株式会社
Priority date: 2013-12-05
Filing date: 2013-12-05
Publication date: 2016-11-24
Anticipated expiration: 2033-12-05
Also published as: JP2015109765A

Description

本発明は、住宅等の施設における電力供給システムに関する。 The present invention relates to a power supply system in a facility such as a house.

住宅等の施設において、施設全体におけるエネルギー状態を一元管理する技術の開発が進められている（特許文献１参照）。 In a facility such as a house, development of a technique for centrally managing the energy state of the entire facility is underway (see Patent Document 1).

特開２０１２−２３８７２号公報JP 2012-23872 A

住宅等の施設に設けられる負荷の中でも、空調機、給湯機等といった負荷は、電力を多く消費し、かつ、停電等の影響を避けて確実な電力供給を必要とする。 Among loads provided in a facility such as a house, loads such as an air conditioner and a water heater consume a lot of electric power and require a reliable power supply while avoiding the influence of a power failure or the like.

本発明は、前記事情に鑑みて創案されたものであり、所定負荷に対して確実に電力を供給することが可能な電力供給システムを提供することを課題とする。 The present invention has been made in view of the above circumstances, and an object thereof is to provide a power supply system capable of reliably supplying power to a predetermined load.

前記課題を解決するため、本発明の電力供給システムは、商用電源から供給される電力を、第一負荷及び第二負荷へ分電する分電盤と、前記分電盤に対して前記第二負荷と同側に設けられており、前記第二負荷へ電力を供給することが可能な発電機と、前記分電盤と前記第二負荷とを接続するとともに前記発電機と前記第二負荷とを切断する状態と、前記分電盤と前記第二負荷とを切断するとともに前記発電機と前記第二負荷とを接続する状態と、を切替可能な第一切替部と、を備え、前記分電盤は、前記商用電源から供給される電力を蓄電池へ分電するとともに、前記商用電源から供給される電力に加えて太陽光発電池から供給される電力を前記第一負荷、前記第二負荷及び前記蓄電池へ分電し、前記蓄電池及び前記発電機は、第三負荷へ電力を供給することが可能であり、前記太陽光発電池は、前記分電盤を介さずに非常用導線を介して前記蓄電池へ電力を供給することが可能であり、前記蓄電池と前記第三負荷とを接続するとともに前記発電機と前記第三負荷とを切断する状態と、前記蓄電池と前記第三負荷とを切断するとともに前記発電機と前記第三負荷とを接続する状態と、を切替可能な第二切替部と、前記太陽光発電池と前記分電盤とを接続するとともに前記太陽光発電池と前記蓄電池とを前記非常用導線側において切断する状態と、前記太陽光発電池と前記分電盤とを切断するとともに前記太陽光発電池と前記蓄電池とを前記非常用導線側において接続する状態と、を切替可能な第三切替部と、をさらに備えることを特徴とする。 In order to solve the above problems, a power supply system according to the present invention includes a distribution board that distributes power supplied from a commercial power source to a first load and a second load, and the second distribution board with respect to the distribution board. A generator that is provided on the same side as the load and that can supply power to the second load; and the power distribution panel and the second load; and the generator and the second load includes a state of cutting, with the distribution board and the second load and the generator and the second load and can switch between a state for connecting a first switching unit with cutting the, the, said component The switchboard distributes the power supplied from the commercial power source to the storage battery, and supplies the power supplied from the solar battery in addition to the power supplied from the commercial power source to the first load and the second load. And the storage battery, the storage battery and the generator to the third load Power can be supplied, and the solar battery can supply power to the storage battery via an emergency lead without passing through the distribution board, and the storage battery and the third battery Switching between a state of connecting the load and disconnecting the generator and the third load, and a state of disconnecting the storage battery and the third load and connecting the generator and the third load A possible second switching unit, a state in which the solar battery and the distribution board are connected and the solar battery and the storage battery are disconnected on the emergency conductor side, and the solar battery And a third switching unit capable of switching between a state in which the solar panel and the storage battery are connected on the emergency conductor side while cutting the distribution board .

かかる構成によると、発電機が第一分電盤に対して第二負荷と同側に設けられており、第一切替部が第二負荷の接続先を商用電源と発電機とで切り替えることができるので、例えば消費電力増大時には、第一負荷への電力供給源を商用電源とするとともに第二負荷への電力供給源を発電機とし、第二負荷に対して確実に電力を供給することができる。
また、かかる構成によると、第二切替部が第三負荷の接続先を発電機と蓄電池とで切り替えることができるので、例えば施設の使用電力増大時には、第三負荷への電力供給源を発電機とし、第三負荷に対して確実に電力を供給することができる。
また、かかる構成によると、第三切替部が太陽光発電池の接続先を第一分電盤と蓄電池とで切り替えることができるので、例えば通常時には、太陽光発電池からの電力を商用電源の補佐として第一分電盤へ送り、例えば停電時には、太陽光発電池からの電力を蓄電池へ送って直接充電することができる。
また、停電時における第三負荷への電力供給源である蓄電池のバックアップが太陽光発電池及び発電機と二重となっているので、停電時における第三負荷の使用継続可能時間を大幅に改善することができる。 According to such a configuration, the generator is provided on the same side as the second load with respect to the first distribution board, and the first switching unit can switch the connection destination of the second load between the commercial power source and the generator. Therefore, for example, when power consumption increases, the power supply source to the first load can be a commercial power source and the power supply source to the second load can be a generator to reliably supply power to the second load. it can.
In addition, according to this configuration, the second switching unit can switch the connection destination of the third load between the generator and the storage battery, so that, for example, when the power consumption of the facility is increased, the power supply source to the third load is the generator. And power can be reliably supplied to the third load.
In addition, according to such a configuration, the third switching unit can switch the connection destination of the solar battery between the first distribution board and the storage battery. For example, during normal times, the power from the solar battery is supplied to the commercial power source. As an assistant, it can be sent to the first distribution board. For example, in the event of a power failure, the power from the solar battery can be sent to the storage battery and charged directly.
In addition, because the backup of the storage battery, which is the power supply source to the third load at the time of a power failure, is doubled with the solar battery and generator, the time that the third load can be used continuously at the time of a power failure is greatly improved can do.

前記電力供給システムは、前記発電機及び前記第一切替部を制御する制御部を備え、前記制御部は、使用電力増大時に、前記発電機を駆動させるとともに前記第一切替部を前記分電盤と前記第二負荷とを切断するとともに前記発電機と前記第二負荷とを接続する状態とする構成であってもよい。 The power supply system includes a control unit that controls the generator and the first switching unit, and the control unit drives the generator and increases the first switching unit to the distribution board when power usage increases. The second load may be disconnected and the generator and the second load may be connected.

かかる構成によると、消費電力増大時に、第一負荷への電力供給源を商用電源とするとともに第二負荷への電力供給源を発電機とし、第二負荷に対して確実に電力を供給することができる。 According to this configuration, when the power consumption increases, the power supply source to the first load is a commercial power supply and the power supply source to the second load is a generator, so that power is reliably supplied to the second load. Can do.

本発明によれば、第二負荷に対して確実に電力を供給することができる。 According to the present invention, power can be reliably supplied to the second load.

本発明の実施形態に係る電力供給システムの回路構成を模式的に示す図であって、通常時の状態を示す図である。It is a figure which shows typically the circuit structure of the electric power supply system which concerns on embodiment of this invention, Comprising: It is a figure which shows the state at the time of normal. 本発明の実施形態に係る電力供給システムを示す機能ブロック図である。It is a functional block diagram which shows the electric power supply system which concerns on embodiment of this invention. 本発明の実施形態に係る電力供給システムの回路構成を模式的に示す図であって、使用電力増大時の状態を示す図である。It is a figure which shows typically the circuit structure of the electric power supply system which concerns on embodiment of this invention, Comprising: It is a figure which shows the state at the time of use electric power increase. 本発明の実施形態に係る電力供給システムの回路構成を模式的に示す図であって、停電時の状態を示す図である。It is a figure which shows typically the circuit structure of the electric power supply system which concerns on embodiment of this invention, Comprising: It is a figure which shows the state at the time of a power failure. 本発明の実施形態に係る電力供給システムの回路構成を模式的に示す図であって、停電時の状態を示す図である。It is a figure which shows typically the circuit structure of the electric power supply system which concerns on embodiment of this invention, Comprising: It is a figure which shows the state at the time of a power failure.

本発明の実施形態について、適宜図面を参照しながら詳細に説明する。本発明の電力供給システムは、住宅等の施設に設けられた負荷を、一般負荷、特定負荷及び重要負荷の三種類に分け、停電等といった状況に応じて、各種負荷への電力供給ルートを切り替えるものである。また、本発明の電力供給システムは、停電時に商用電源（系統電源）に頼らずに電力を自給自足でまかなうことができる自給自足電源システムでもある。 Embodiments of the present invention will be described in detail with reference to the drawings as appropriate. The power supply system of the present invention divides a load provided in a facility such as a house into three types, a general load, a specific load, and an important load, and switches a power supply route to various loads according to a situation such as a power failure. Is. In addition, the power supply system of the present invention is also a self-sufficient power supply system that can supply power self-sufficiently without relying on a commercial power supply (system power supply) in the event of a power failure.

図１に示すように、本発明の実施形態に係る電力供給システム１は、電力供給源として、商用電源１１、発電機１２、太陽光発電池１３及び蓄電池１４を備え、これら電力供給源から供給される電力を、住宅等の施設に設けられた一般負荷２１、特定負荷２２及び重要負荷２３に分配して供給するシステムである。かかる電力供給システム１は、第一分電盤３１及び第二分電盤３２と、第一切替部４１、第二切替部４２及び第三切替部４３と、第一電力検出部５１、第二電力検出部５２及び第三電力検出部５３と、停電検出部５４と、蓄電量検出部５５と、制御部６０（図２参照）と、を備える。すなわち、電力供給システム１は、商用電源１１、発電機１２、太陽光発電池１３、蓄電池１４、一般負荷２１、特定負荷２２、重要負荷２３、第一分電盤３１、第二分電版３２、第一切替部４１、第二切替部４２、第三切替部４３及び第四切替部４４が導線（電力線）Ｌ１〜Ｌ１４を介して接続されることによって、商用電源１１、発電機１２、太陽光発電池１３及び蓄電池１４からの電力を一般負荷２１、特定負荷２２及び重要負荷２３へ供給する回路を構成しており、各種分電盤３１，３２及び各種切替部４１，４２，４３，４４は、かかる回路内に配置されている。 As shown in FIG. 1, the power supply system 1 according to the embodiment of the present invention includes a commercial power supply 11, a generator 12, a solar battery 13, and a storage battery 14 as power supply sources, and is supplied from these power supply sources. This system distributes and supplies the generated power to a general load 21, a specific load 22, and an important load 23 provided in a facility such as a house. The power supply system 1 includes a first distribution board 31 and a second distribution board 32, a first switching unit 41, a second switching unit 42 and a third switching unit 43, a first power detection unit 51, a second The electric power detection part 52 and the 3rd electric power detection part 53, the power failure detection part 54, the electrical storage amount detection part 55, and the control part 60 (refer FIG. 2) are provided. That is, the power supply system 1 includes a commercial power supply 11, a generator 12, a solar battery 13, a storage battery 14, a general load 21, a specific load 22, an important load 23, a first distribution board 31, and a second distribution plate 32. The first switching unit 41, the second switching unit 42, the third switching unit 43, and the fourth switching unit 44 are connected via the conducting wires (power lines) L1 to L14, so that the commercial power supply 11, the generator 12, and the sun are connected. A circuit for supplying electric power from the photovoltaic cell 13 and the storage battery 14 to the general load 21, the specific load 22 and the important load 23 is configured, and various distribution boards 31 and 32 and various switching units 41, 42, 43 and 44 are provided. Are arranged in such a circuit.

＜電源＞
商用電源（系統電源ともいう）１１は、導線Ｌ１によって第一分電盤３１と接続されている。商用電源１１からの電力は、一般負荷２１及び特定負荷２２へ供給可能であるとともに、蓄電池１４を介して重要負荷２３へ供給可能である。 <Power supply>
A commercial power supply (also referred to as a system power supply) 11 is connected to the first distribution board 31 by a conducting wire L1. The electric power from the commercial power supply 11 can be supplied to the general load 21 and the specific load 22 and can be supplied to the important load 23 via the storage battery 14.

発電機１２は、軽油、ガソリン、ガス等を燃料とする発電機であり、第一分電盤３１に対して、商用電源１１と別側かつ特定負荷２２と同側に設けられている。発電機１２は、導線Ｌ５によって第一切替部４１と接続されており、導線Ｌ５から分岐する導線Ｌ１１によって、第二切替部４２と接続されている。発電機１２からの電力は、特定負荷２２及び重要負荷２３へ供給可能である。 The generator 12 is a generator that uses light oil, gasoline, gas, or the like as fuel, and is provided on the side different from the commercial power supply 11 and on the same side as the specific load 22 with respect to the first distribution board 31. The generator 12 is connected to the first switching unit 41 by a conducting wire L5, and is connected to the second switching unit 42 by a conducting wire L11 branched from the conducting wire L5. Electric power from the generator 12 can be supplied to the specific load 22 and the important load 23.

太陽光発電池１３は、住宅等の施設の屋上に設けられて太陽光による発電を行う。太陽光発電池１３は、導線Ｌ１２によって第三切替部４３と接続されている。太陽光発電池１３からの電力は、一般負荷２１及び特定負荷２２へ供給可能であるとともに、蓄電池１４を介して重要負荷２３へ供給可能である。 The solar battery 13 is provided on the roof of a facility such as a house and generates power using sunlight. The solar battery 13 is connected to the third switching unit 43 by a conducting wire L12. The electric power from the solar battery 13 can be supplied to the general load 21 and the specific load 22 and can be supplied to the important load 23 via the storage battery 14.

蓄電池１４は、例えば住宅等の施設に設けられた定置型のリチウムイオン蓄電池である。蓄電池１４は、導線Ｌ７によって第二分電盤３２と接続されており、導線Ｌ８によって第二切替部４２と接続されており、非常用導線である導線Ｌ１４によって第三切替部４３と接続されている。蓄電池１４からの電力は、重要負荷２３へ供給可能である。 The storage battery 14 is a stationary lithium ion storage battery provided in a facility such as a house. The storage battery 14 is connected to the second distribution board 32 by a conducting wire L7, is connected to the second switching unit 42 by a conducting wire L8, and is connected to the third switching unit 43 by a conducting wire L14 that is an emergency conducting wire. Yes. The electric power from the storage battery 14 can be supplied to the important load 23.

ここで、蓄電池１４に接続された導線のうち、導線Ｌ６，Ｌ７は、充電及び放電のいずれかを行うことができる。すなわち、導線Ｌ６，Ｌ７は、商用電源１１から導線Ｌ１及び第一分電盤３１を介した電力、並びに、太陽光発電池１３から導線Ｌ１２、第三切替部４３、導線Ｌ１３及び第一分電盤３１を介した電力を蓄電池１４へ供給するためのものである。 Here, among the conducting wires connected to the storage battery 14, the conducting wires L6 and L7 can be charged or discharged. That is, the conducting wires L6 and L7 are supplied from the commercial power supply 11 through the conducting wire L1 and the first distribution board 31, and from the solar battery 13 to the conducting wire L12, the third switching unit 43, the conducting wire L13, and the first power distribution. This is for supplying electric power via the panel 31 to the storage battery 14.

ここで、蓄電池１４が導線Ｌ７、第二分電盤３２及び導線Ｌ６を介して第一分電盤３１へ放電するのは、施設内の電力系統に電力を供給するためであり、蓄電池１４の蓄電量が十分ある場合であって、かつ、太陽光発電池１３からの電力が不足している場合（例えば、太陽光発電池１３の発電量が少ない場合、一般負荷２１及び特定負荷２２の使用電力が増大している場合等）に、施設内の電力系統に接続された一般負荷２１及び特定負荷２２に必要な電力をまかなうことができない分を蓄電池１４からの電力で補うためである。したがって、蓄電池１４が導線Ｌ７、第二分電盤３２及び導線Ｌ６を介して第一分電盤３１へ放電する時は、商用電源１１からの買電量を減らすことができる。 Here, the storage battery 14 is discharged to the first distribution board 31 via the conductor L7, the second distribution board 32, and the conductor L6 in order to supply power to the power system in the facility. When the amount of stored electricity is sufficient and the power from the solar battery 13 is insufficient (for example, when the power generation amount of the solar battery 13 is small, the use of the general load 21 and the specific load 22) This is because the power from the storage battery 14 is compensated for the amount of power required for the general load 21 and the specific load 22 connected to the power system in the facility when the power is increasing. Therefore, when the storage battery 14 discharges to the first distribution board 31 via the conductor L7, the second distribution board 32, and the conductor L6, the amount of power purchased from the commercial power supply 11 can be reduced.

また、蓄電池１４に接続された導線のうち、導線Ｌ８，Ｌ９は、放電のみを行う。すなわち、導線Ｌ８，Ｌ９は、蓄電池１４からの電力を第二分電盤３２及び導線Ｌ１０を介して重要負荷２３へ供給するためのものである。 Moreover, among the conducting wires connected to the storage battery 14, the conducting wires L8 and L9 perform only discharging. That is, the conducting wires L8 and L9 are for supplying the electric power from the storage battery 14 to the important load 23 via the second distribution board 32 and the conducting wire L10.

また、蓄電池１４に接続された導線のうち、導線Ｌ１４は、充電のみを行う。すなわち、導線Ｌ９は、太陽光発電池１３から導線Ｌ１２及び第三切替部４３を介した電力を蓄電池１４へ供給するためのものである。 Moreover, among the conducting wires connected to the storage battery 14, the conducting wire L14 performs only charging. That is, the conducting wire L9 is for supplying electric power from the solar battery 13 via the conducting wire L12 and the third switching unit 43 to the storage battery 14.

＜負荷＞
一般負荷２１は、後記する特定負荷２２及び重要負荷２３以外の負荷（第一負荷）であり、各種の家電製品等である。一般負荷２１は、導線Ｌ２によって第一分電盤３１と接続されている。 <Load>
The general load 21 is a load (first load) other than the specific load 22 and the important load 23 described later, and is various home appliances and the like. The general load 21 is connected to the first distribution board 31 by a conducting wire L2.

特定負荷２２は、住宅等の施設において消費電力が大きい負荷（第二負荷）であり、空調機、給湯機等である。特に空調機は、全館空調システムを採用した住宅等の施設における消費電力のかなりの部分を占める。特定負荷２２は、導線Ｌ４によって第一切替部４１と接続されている。 The specific load 22 is a load (second load) with large power consumption in a facility such as a house, and is an air conditioner, a water heater, or the like. In particular, the air conditioner occupies a considerable portion of the power consumption in a facility such as a house that employs the entire building air conditioning system. The specific load 22 is connected to the first switching unit 41 by a conducting wire L4.

重要負荷２３は、停電時においても電力供給が必要な負荷（第三負荷）であり、保安電灯、冷蔵庫、情報端末（テレビ、インターネット機器等）等である。重要負荷２３は、導線Ｌ１０によって第二分電盤３２と接続されている。 The important load 23 is a load (third load) that needs to be supplied even in the event of a power failure, and is a safety light, a refrigerator, an information terminal (such as a television or an Internet device), and the like. The important load 23 is connected to the second distribution board 32 by a conducting wire L10.

＜分電盤＞
第一分電盤３１は、商用電源１１と、一般負荷２１と、第二分電盤３２と、第一切替部４１と、第三切替部４３と、にそれぞれ電気的に接続されている。詳細には、第一分電盤３１は、導線Ｌ１によって商用電源１１と接続されており、導線Ｌ２によって一般負荷２１と接続されており、導線Ｌ３によって第一切替部４１と接続されており、導線Ｌ６によって第二分電盤３２と接続されており、導線Ｌ１３によって第三切替部４３と接続されている。かかる第一分電盤３１には、商用電源１１から電力が供給されるとともに、太陽光発電池１３から第三切替部４３を介して電力が供給される。そして、第一分電盤３１は、商用電源１１及び太陽光発電池１３から供給された電力を分電し、一般負荷２１及び第二分電盤３２へ電力を供給するとともに、第一切替部４１を介して特定負荷２２へ電力を供給する。 <Distribution panel>
The first distribution board 31 is electrically connected to the commercial power supply 11, the general load 21, the second distribution board 32, the first switching unit 41, and the third switching unit 43. Specifically, the first distribution board 31 is connected to the commercial power supply 11 by the conducting wire L1, is connected to the general load 21 by the conducting wire L2, and is connected to the first switching unit 41 by the conducting wire L3. The conductor L6 is connected to the second distribution board 32, and the conductor L13 is connected to the third switching unit 43. The first distribution board 31 is supplied with electric power from the commercial power supply 11 and is supplied with electric power from the solar battery 13 through the third switching unit 43. And the 1st distribution board 31 distributes the electric power supplied from the commercial power source 11 and the photovoltaic cell 13, supplies electric power to the general load 21 and the 2nd distribution board 32, and is the 1st switching part. Power is supplied to the specific load 22 via 41.

第二分電盤３２は、重要負荷２３と、第一分電盤３１と、第二切替部４２と、にそれぞれ電気的に接続されている。詳細には、第二分電盤３２は、導線Ｌ６によって第一分電盤３１と接続されており、導線Ｌ７によって蓄電池１４と接続されており、導線Ｌ９によって第二切替部４２と接続されており、導線Ｌ１０によって重要負荷２３と接続されている。かかる第二分電盤３２には、第一分電盤３１から電力が供給される。この場合、第二分電盤３２は、第一分電盤３１から供給された電力をそのまま蓄電池１４へ供給する。 The second distribution board 32 is electrically connected to the important load 23, the first distribution board 31, and the second switching unit 42, respectively. Specifically, the second distribution board 32 is connected to the first distribution board 31 by a conducting wire L6, is connected to the storage battery 14 by a conducting wire L7, and is connected to the second switching unit 42 by a conducting wire L9. And is connected to the important load 23 by a conducting wire L10. Electric power is supplied to the second distribution board 32 from the first distribution board 31. In this case, the second distribution board 32 supplies the power supplied from the first distribution board 31 to the storage battery 14 as it is.

また、第二分電盤３２には、発電機１２及び蓄電池１４のいずれかから第二切替部４２を介して電力が供給される。この場合、第二分電盤３２は、発電機及び蓄電池１４のいずれかから供給された電力を重要負荷２３へ供給する。 The second distribution board 32 is supplied with power from either the generator 12 or the storage battery 14 via the second switching unit 42. In this case, the second distribution board 32 supplies the power supplied from either the generator or the storage battery 14 to the important load 23.

＜切替部＞
第一切替部４１は、発電機１２と、特定負荷２２と、第一分電盤３１と、の間に設けられた切替スイッチである。詳細には、第一切替部４１は、導線Ｌ３によって第一分電盤３１と接続されており、導線Ｌ４によって特定負荷２２と接続されており、導線Ｌ５によって発電機１２と接続されている。第一切替部４１は、第一分電盤３１と特定負荷２２とを接続するとともに発電機１２と特定負荷２２とを切断する状態（図１参照）と、第一分電盤３１と特定負荷２２とを切断するとともに発電機１２と特定負荷２２とを接続する状態（図３参照）と、を切替可能に構成されている。 <Switching unit>
The first switching unit 41 is a change-over switch provided between the generator 12, the specific load 22, and the first distribution board 31. In detail, the 1st switching part 41 is connected with the 1st electricity distribution panel 31 with the conducting wire L3, is connected with the specific load 22 with the conducting wire L4, and is connected with the generator 12 with the conducting wire L5. The first switching unit 41 connects the first distribution board 31 and the specific load 22 and disconnects the generator 12 and the specific load 22 (see FIG. 1), and the first distribution board 31 and the specific load. The state (refer FIG. 3) which connects the generator 12 and the specific load 22 while being disconnected is comprised so that switching is possible.

第二切替部４２は、発電機１２と、蓄電池１４と、第二分電盤３２と、の間に設けられた切替スイッチである。詳細には、第二切替部４２は、導線Ｌ８によって蓄電池１４と接続されており、導線Ｌ９によって第二分電盤３２と接続されており、導線Ｌ１１及び導線Ｌ５によって発電機１２と接続されている。第二切替部４２は、第二分電盤３２と蓄電池１４とを接続するとともに第二分電盤３２と発電機１２とを切断する状態（図１参照）と、第二分電盤３２と蓄電池１４とを切断するとともに第二分電盤３２と発電機１２とを接続する状態（図５参照）と、を切替可能である The second switching unit 42 is a switch provided between the generator 12, the storage battery 14, and the second distribution board 32. In detail, the 2nd switching part 42 is connected with the storage battery 14 by the conducting wire L8, is connected with the 2nd electricity distribution panel 32 by the conducting wire L9, and is connected with the generator 12 by the conducting wire L11 and the conducting wire L5. Yes. The second switching unit 42 connects the second distribution board 32 and the storage battery 14 and disconnects the second distribution board 32 and the generator 12 (see FIG. 1). It is possible to switch between a state in which the storage battery 14 is disconnected and the second distribution board 32 and the generator 12 are connected (see FIG. 5).

第三切替部４３は、太陽光発電池１３と、蓄電池１４と、第一分電盤３１と、の間に設けられた、いわゆるパワコン（ＰＣ：Power Conditioner）である。詳細には、第三切替部４３は、導線Ｌ１２によって太陽光発電池１３と接続されており、導線Ｌ１３によって第一分電盤３１と接続されており、非常用導線である導線Ｌ１４によって蓄電池１４と接続されている。第三切替部４３は、太陽光発電池１３によって発電された電力を直流から交流に変換して第一分電盤３１及び蓄電池１４のいずれかへ供給する。すなわち、第三切替部４３は、太陽光発電池１３と第一分電盤３１とを接続するとともに太陽光発電池１３と蓄電池１４とを切断する状態と、太陽光発電池１３と第一分電盤３１とを切断するとともに太陽光発電池１３と蓄電池１４とを接続する状態と、を切替可能な切替スイッチを電子的に実装した切替制御部である。 The third switching unit 43 is a so-called power conditioner (PC) provided between the solar battery 13, the storage battery 14, and the first distribution board 31. In detail, the 3rd switching part 43 is connected with the solar cell 13 by the conducting wire L12, is connected with the 1st distribution board 31 by the conducting wire L13, and the storage battery 14 by the conducting wire L14 which is an emergency conducting wire. Connected with. The third switching unit 43 converts the electric power generated by the solar battery 13 from direct current to alternating current and supplies it to either the first distribution board 31 or the storage battery 14. That is, the third switching unit 43 connects the solar battery 13 and the first distribution board 31 and disconnects the solar battery 13 and the storage battery 14, the solar battery 13 and the first distribution board 31. This is a switching control unit that electronically mounts a changeover switch capable of switching between a state in which the solar panel 13 and the storage battery 14 are connected while the power board 31 is disconnected.

第三切替部４３は、後記する停電検出部５４の検出結果を取得し、取得された検出結果が通常状態（非停電状態）を示すものである場合には、太陽光発電池１３と第一分電盤３１とを接続する状態（すなわち、太陽光発電池１３と蓄電池１４とを切断する状態）となり、取得された検出結果が停電状態を示すものである場合には、太陽光発電池１３と蓄電池１４とを接続する状態（すなわち、太陽光発電池１３と第一分電盤３１とを切断するとともに太陽光発電池１３と蓄電池１４とを接続する状態）となる。 The 3rd switching part 43 acquires the detection result of the power failure detection part 54 mentioned later, and when the acquired detection result shows a normal state (non-power failure state), the solar cell 13 and the first When the distribution board 31 is connected (that is, the solar battery 13 and the storage battery 14 are disconnected), and the acquired detection result indicates a power failure state, the solar battery 13 And the storage battery 14 are connected (that is, the solar battery 13 and the first distribution board 31 are disconnected and the solar battery 13 and the storage battery 14 are connected).

第四切替部４４は、蓄電池１４と、第二分電盤３２と、の間に設けられた切替スイッチである。第四切替部４４は、蓄電池１４と第二分電盤３２とを接続する状態（図１参照）と、蓄電池１４と第二分電盤３２とを切断する状態（図４参照）と、を切替可能である。かかる第四切替部４４は、導線Ｌ７又は蓄電池１４内に設けられており、一般的には、蓄電池１４内に一体的に設けられている。 The fourth switch 44 is a switch provided between the storage battery 14 and the second distribution board 32. The fourth switching unit 44 has a state in which the storage battery 14 and the second distribution board 32 are connected (see FIG. 1) and a state in which the storage battery 14 and the second distribution board 32 are disconnected (see FIG. 4). Switching is possible. The fourth switching unit 44 is provided in the lead wire L7 or the storage battery 14, and is generally provided integrally in the storage battery 14.

＜各種検出部＞
第一電力検出部５１は、一般負荷２１に供給されて消費される電力の値を検出して制御部６０へ出力するセンサであり、第一分電盤３１と一般負荷２１とを接続する導線Ｌ２に設けられている。
第二電力検出部５２は、特定負荷２２に供給されて消費される電力の値を検出して制御部６０へ出力するセンサであり、第一切替部４１と特定負荷２２とを接続する導線Ｌ４に設けられている。
第三電力検出部５３は、重要負荷２３に供給されて消費される電力の値を検出して制御部６０へ出力するセンサであり、第二分電盤３２と重要負荷２３とを接続する導線Ｌ１０に設けられている。
停電検出部５４は、停電によって商用電源１１から第一分電盤３１への電力供給が断たれているか否かを検出して第三切替部４３へ出力するセンサ（例えば、電流センサ）であり、商用電源１１と第一分電盤３１とを接続する導線Ｌ１に設けられている。
蓄電量検出部５５は、蓄電池１４の蓄電量を検出して制御部６０へ出力するセンサである。 <Various detection units>
The first power detection unit 51 is a sensor that detects the value of power that is supplied to and consumed by the general load 21 and outputs the value to the control unit 60, and is a conductor that connects the first distribution board 31 and the general load 21. L2 is provided.
The second power detection unit 52 is a sensor that detects the value of the power supplied to the specific load 22 and consumes it, and outputs it to the control unit 60. The second power detection unit 52 connects the first switching unit 41 and the specific load 22. Is provided.
The third power detection unit 53 is a sensor that detects the value of power that is supplied to and consumed by the important load 23 and outputs it to the control unit 60, and is a conductor that connects the second distribution board 32 and the important load 23. L10 is provided.
The power failure detection unit 54 is a sensor (for example, a current sensor) that detects whether or not the power supply from the commercial power supply 11 to the first distribution board 31 is cut off due to a power failure and outputs it to the third switching unit 43. The lead wire L1 connecting the commercial power supply 11 and the first distribution board 31 is provided.
The storage amount detection unit 55 is a sensor that detects the storage amount of the storage battery 14 and outputs it to the control unit 60.

＜制御部＞
制御部６０は、ＣＰＵ（Central Processing Unit）、ＲＯＭ（Read Only Memory）、ＲＡＭ（Random Access Memory）、入出力回路等から構成されており、各種検出部５１〜５５の検出結果に基づいて、第一切替部４１、第二切替部４２及び第四切替部４４を制御する。制御部６０及び前記した各種検出部５１〜５５としては、エネルギー総合監視装置（ＨＥＭＳ：Home Energy Management System）を利用可能である。 <Control unit>
The control unit 60 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input / output circuit, and the like. Based on the detection results of the various detection units 51 to 55, The first switching unit 41, the second switching unit 42, and the fourth switching unit 44 are controlled. As the control unit 60 and the various detection units 51 to 55 described above, an energy comprehensive monitoring device (HEMS: Home Energy Management System) can be used.

なお、制御部６０は、いわゆる無停電装置（ＵＰＳ：Uninterruptible Power System）であり、停電時にも作動することができる。 Note that the control unit 60 is a so-called uninterruptible power system (UPS), and can operate even during a power failure.

＜動作例＞
続いて、電力供給システム１の動作例について、通常時、使用電力増大時（又は、供給電力低下時）、停電時その１、停電時その２、の順に説明する。なお、以下の説明の初期状態として、蓄電池１４は、満充電状態であり、蓄電池１４へ供給された電力をバイパスすることができるものとする。 <Operation example>
Next, an operation example of the power supply system 1 will be described in the order of normal time, when power usage is increased (or when power supply is reduced), power failure 1, power failure 2. As an initial state in the following description, it is assumed that the storage battery 14 is in a fully charged state and can bypass the power supplied to the storage battery 14.

＜通常時＞
通常時には、電力供給システム１は、一般負荷２１、特定負荷２２及び重要負荷２３の使用電力を、商用電源１１及び太陽光発電池１３からの電力でまかなう。 <Normal time>
In normal times, the power supply system 1 supplies the power used by the general load 21, the specific load 22, and the important load 23 with the power from the commercial power supply 11 and the solar battery 13.

すなわち、図１に示すように、制御部６０は、停電検出部５４の検出結果が通常時状態（非停電状態）を示す場合に、発電機１２を停止状態とし、第一切替部４１を、第一分電盤３１と特定負荷２２とを接続する状態（すなわち、発電機１２と特定負荷２２とを切断する状態）とし、第二切替部４２を、第二分電盤３２と蓄電池１４とを接続する状態（すなわち、第二分電盤３２と発電機１２とを切断する状態）とし、第四切替部４４を、蓄電池１４と第二分電盤とを接続する状態とする。
また、第三切替部４３は、太陽光発電池１３と第一分電盤３１を接続する状態（すなわち、太陽光発電池１３と蓄電池１４とを切断する状態）となる。 That is, as shown in FIG. 1, when the detection result of the power failure detection unit 54 indicates a normal state (non-power failure state), the control unit 60 puts the generator 12 into a stopped state and sets the first switching unit 41 to The first distribution board 31 and the specific load 22 are connected (that is, the generator 12 and the specific load 22 are disconnected), and the second switching unit 42 is connected to the second distribution board 32 and the storage battery 14. Is connected (ie, the second distribution board 32 and the generator 12 are disconnected), and the fourth switching unit 44 is connected to the storage battery 14 and the second distribution board.
Moreover, the 3rd switching part 43 will be in the state (namely, the state which cut | disconnects the solar power generation battery 13 and the storage battery 14) which connects the solar power generation battery 13 and the 1st electricity distribution panel 31. FIG.

かかる状態において、第一分電盤３１には、商用電源１１からの電力が導線Ｌ１を介して供給されるとともに、太陽光発電池１３からの電力が導線Ｌ１２、第三切替部４３及び導線Ｌ１３を介して供給される。第一分電盤３１は、商用電源１１及び太陽光発電池１３からの電力を分電することによって、導線Ｌ２を介して一般負荷２１へ電力を供給し、導線Ｌ６を介して第二分電盤３２へ電力を供給し、導線Ｌ３、第一切替部４１及び導線Ｌ４を介して特定負荷２２へ電力を供給する。第二分電盤３２は、第一分電盤３１からの電力を導線Ｌ７を介して蓄電池１４へそのまま供給する。蓄電池１４は、第二分電盤３２からの電力をバイパスし、導線Ｌ８、第二切替部４２及び導線Ｌ９を介して第二分電盤３２へ供給する。第二分電盤３２は、蓄電池１４からの電力を、導線Ｌ１０を介して重要負荷２３へそのまま供給する。なお、蓄電池１４をバイパスする電力だけで重要負荷２３の使用電力をまかなうことができない場合には、蓄電池１４に蓄電された電力も、導線Ｌ８、第二切替部４２、導線Ｌ９、第二分電盤３２及び導線Ｌ１０を介して重要負荷２３へ供給される。また、太陽光１３からの電力が少ない場合等には、蓄電池１４に蓄電された電力が、導線Ｌ７、第二分電盤３２、導線Ｌ６、第一分電盤３１及び導線Ｌ２を介して一般負荷２１へ供給されたり、導線Ｌ７、第二分電盤３２、導線Ｌ６、第一分電盤３１、導線Ｌ３、第一切替部４１及び導線Ｌ４を介して特定負荷２２へ供給されたりする。 In such a state, power from the commercial power supply 11 is supplied to the first distribution board 31 via the conductor L1, and power from the solar battery 13 is transmitted to the conductor L12, the third switching unit 43, and the conductor L13. Is supplied through. The first distribution board 31 supplies power from the commercial power supply 11 and the solar battery 13 to the general load 21 via the lead L2, and supplies the second power distribution via the lead L6. Electric power is supplied to the panel 32, and electric power is supplied to the specific load 22 through the conducting wire L3, the first switching unit 41, and the conducting wire L4. The second distribution board 32 supplies the electric power from the first distribution board 31 to the storage battery 14 as it is through the conductor L7. The storage battery 14 bypasses the electric power from the 2nd distribution board 32, and supplies it to the 2nd distribution board 32 via the conducting wire L8, the 2nd switching part 42, and the conducting wire L9. The second distribution board 32 supplies the electric power from the storage battery 14 to the important load 23 as it is through the conductor L10. In addition, when the electric power used by the important load 23 cannot be provided only by the electric power that bypasses the storage battery 14, the electric power stored in the storage battery 14 is also connected to the conductor L8, the second switching unit 42, the conductor L9, and the second power distribution. It is supplied to the important load 23 via the board 32 and the conducting wire L10. Moreover, when there is little electric power from sunlight 13, the electric power accumulate | stored in the storage battery 14 is general via the conducting wire L7, the 2nd distribution board 32, the conducting wire L6, the 1st distribution board 31, and the conducting wire L2. It is supplied to the load 21, or supplied to the specific load 22 via the conductor L 7, the second distribution board 32, the conductor L 6, the first distribution board 31, the conductor L 3, the first switching unit 41 and the conductor L 4.

＜使用電力増大時＞
施設の使用電力増大時には、電力供給システム１は、特定負荷２２の使用電力を、発電機１２からの電力でまかなう。また、電力供給システム１は、一般負荷２１及び重要負荷２３の使用電力を、商用電源１１及び太陽光発電池１３からの電力でまかなう。 <When power consumption increases>
When the power consumption of the facility is increased, the power supply system 1 covers the power consumption of the specific load 22 with the power from the generator 12. In addition, the power supply system 1 supplies the power used by the general load 21 and the important load 23 with the power from the commercial power supply 11 and the solar battery 13.

すなわち、図３に示すように、制御部６０は、停電検出部５４の検出結果が通常状態（非停電状態）を示す場合であって、施設の使用電力増大時に、第一電力検出部５１、第二電力検出部５２及び第三電力検出部５３によって検出された電力の値の合計が閾値（例えば、商用電源１１の契約電力の値）以上となった場合に、発電機１２を駆動状態とし、第一切替部４１を、発電機１２と特定負荷２２とを接続する状態（すなわち、第一分電盤３１と特定負荷２２とを切断する状態）とし、第二切替部４２を、第二分電盤３２と蓄電池１４とを接続する状態（すなわち、第二分電盤３２と発電機１２とを切断する状態）とする。また、第三切替部４３は、太陽光発電池１３と第一分電盤３１を接続する状態（すなわち、太陽光発電池１３と蓄電池１４とを切断する状態）となる。 That is, as shown in FIG. 3, the control unit 60 is a case where the detection result of the power failure detection unit 54 indicates a normal state (non-power failure state), and when the facility power consumption increases, When the sum of the power values detected by the second power detection unit 52 and the third power detection unit 53 is equal to or greater than a threshold value (for example, the value of the contract power of the commercial power supply 11), the generator 12 is set in a driving state. The first switching unit 41 is set to a state in which the generator 12 and the specific load 22 are connected (that is, a state in which the first distribution board 31 and the specific load 22 are disconnected), and the second switching unit 42 is set to the second The distribution board 32 and the storage battery 14 are connected (that is, the second distribution board 32 and the generator 12 are disconnected). Moreover, the 3rd switching part 43 will be in the state (namely, the state which cut | disconnects the solar power generation battery 13 and the storage battery 14) which connects the solar power generation battery 13 and the 1st electricity distribution panel 31. FIG.

かかる状態において、発電機１２は、導線Ｌ５、第一切替部４１及び導線Ｌ４を介して特定負荷２２へ電力を供給する。また、第一分電盤３１には、商用電源１１からの電力が導線Ｌ１を介して供給されるとともに、太陽光発電池１３からの電力が導線Ｌ１２、第三切替部４３及び導線Ｌ１３を介して供給される。第一分電盤３１は、商用電源１１及び太陽光発電池１３からの電力を分電し、導線Ｌ２を介して一般負荷２１へ電力を供給し、導線Ｌ６を介して第二分電盤３２へ電力を供給する。第二分電盤３２は、第一分電盤３１からの電力を導線Ｌ７を介して蓄電池１４へそのまま供給する。蓄電池１４は、第二分電盤３２からの電力をバイパスし、導線Ｌ８、第二切替部４２及び導線Ｌ９を介して第二分電盤３２へ供給する。第二分電盤３２は、蓄電池１４からの電力を、導線Ｌ１０を介して重要負荷２３へそのまま供給する。なお、蓄電池１４をバイパスする電力だけで重要負荷２３の使用電力をまかなうことができない場合には、蓄電池１４に蓄電された電力も、導線Ｌ８、第二切替部４２、導線Ｌ９、第二分電盤３２及び導線Ｌ１０を介して重要負荷２３へ供給される。また、太陽光１３からの電力が少ない場合等には、蓄電池１４に蓄電された電力が、導線Ｌ７、第二分電盤３２、導線Ｌ６、第一分電盤３１及び導線Ｌ２を介して一般負荷２１へ供給される。このようにすることで、商用電源１１から特定負荷２２への電力供給をストップし、商用電源１１からの電力供給が契約電力を超えてしまうことを防ぐことができる。 In such a state, the generator 12 supplies power to the specific load 22 via the conducting wire L5, the first switching unit 41, and the conducting wire L4. The first distribution board 31 is supplied with electric power from the commercial power supply 11 via the conductor L1, and the electric power from the solar battery 13 is supplied via the conductor L12, the third switching unit 43 and the conductor L13. Supplied. The first distribution board 31 distributes the electric power from the commercial power supply 11 and the solar battery 13, supplies the electric power to the general load 21 through the conductor L 2, and the second distribution board 32 through the conductor L 6. To supply power. The second distribution board 32 supplies the electric power from the first distribution board 31 to the storage battery 14 as it is through the conductor L7. The storage battery 14 bypasses the electric power from the 2nd distribution board 32, and supplies it to the 2nd distribution board 32 via the conducting wire L8, the 2nd switching part 42, and the conducting wire L9. The second distribution board 32 supplies the electric power from the storage battery 14 to the important load 23 as it is through the conductor L10. In addition, when the electric power used by the important load 23 cannot be provided only by the electric power that bypasses the storage battery 14, the electric power stored in the storage battery 14 is also connected to the conductor L8, the second switching unit 42, the conductor L9, and the second power distribution. It is supplied to the important load 23 via the board 32 and the conducting wire L10. Moreover, when there is little electric power from sunlight 13, the electric power accumulate | stored in the storage battery 14 is general via the conducting wire L7, the 2nd distribution board 32, the conducting wire L6, the 1st distribution board 31, and the conducting wire L2. Supplied to the load 21. By doing in this way, the electric power supply from the commercial power supply 11 to the specific load 22 can be stopped, and it can prevent that the electric power supply from the commercial power supply 11 exceeds contract electric power.

本実施形態において、制御部６０は、第一電力検出部５１、第二電力検出部５２及び第三電力検出部５３によって検出された電力の値の合計が閾値以上となった場合に、図３に示す状態となるように切替部４１，４２を制御し、第一電力検出部５１、第二電力検出部５２及び第三電力検出部５３によって検出された電力の値の合計が閾値未満となった場合に、図１に示す状態となるように切替部４１，４２を制御する。 In the present embodiment, the control unit 60 determines that when the sum of the power values detected by the first power detection unit 51, the second power detection unit 52, and the third power detection unit 53 is equal to or greater than a threshold, FIG. The switching units 41 and 42 are controlled so as to be in the state shown in FIG. 5B, and the sum of the power values detected by the first power detection unit 51, the second power detection unit 52, and the third power detection unit 53 is less than the threshold value. In such a case, the switching units 41 and 42 are controlled so that the state shown in FIG.

かかる動作例は、太陽光発電池１３による供給電力低下時等にも適用可能である。例えば、変形例として、制御部６０は、蓄電池１４の蓄電量を検出する蓄電量検出部５５の検出結果を取得し、取得された蓄電量が第一閾値（満充電状態、又は、満充電状態に近い蓄電量）以上の場合には図１に示す状態となるように切替部４１，４２を制御し、取得された蓄電量が第二閾値（第一閾値よりも小さい）未満の場合には図３に示す状態となるように切替部４１，４２を制御することができる。このようにすることで、蓄電池１４の蓄電量を確保し、急な停電等に備えることができる。 Such an operation example can also be applied when power supplied by the solar battery 13 is reduced. For example, as a modification, the control unit 60 acquires the detection result of the storage amount detection unit 55 that detects the storage amount of the storage battery 14, and the acquired storage amount is the first threshold (full charge state or full charge state). If the amount of stored electricity is less than the second threshold (smaller than the first threshold), the switching units 41 and 42 are controlled so that the state shown in FIG. The switching units 41 and 42 can be controlled so as to be in the state shown in FIG. By doing in this way, the electrical storage amount of the storage battery 14 can be ensured and it can prepare for a sudden power failure.

また、制御部６０は、太陽光発電池１３が設けられた屋上の明度（施設外の太陽光等による明度）を検出する明度検出部（図示せず）の検出結果を取得し、取得された明度が閾値以上の場合には図１に示す状態となるように切替部４１，４２を制御し、取得された明度が閾値未満の場合には図３に示す状態となるように切替部４１，４２を制御することができる。このようにすることで、蓄電池１４の蓄電量を確保し、急な停電等に備えることができる。 Moreover, the control part 60 acquired and acquired the detection result of the lightness detection part (not shown) which detects the lightness (lightness by sunlight etc. outside a facility) of the roof in which the solar cell 13 was provided. When the brightness is equal to or higher than the threshold, the switching units 41 and 42 are controlled so as to be in the state shown in FIG. 1, and when the acquired brightness is lower than the threshold, the switching unit 41, 42 is set so as to be in the state shown in FIG. 42 can be controlled. By doing in this way, the electrical storage amount of the storage battery 14 can be ensured and it can prepare for a sudden power failure.

また、制御部６０は、内蔵の又は外部の時計に基づいて、昼間には図１に示す状態となるように切替部４１，４２を制御し、夜間には図３に示す状態となるように切替部４１，４２を制御することができる。このようにすることで、蓄電池１４の蓄電量を確保し、急な停電等に備えることができる。 Further, the control unit 60 controls the switching units 41 and 42 so as to be in the state shown in FIG. 1 during the daytime based on a built-in or external clock, and is in the state shown in FIG. 3 at night. The switching units 41 and 42 can be controlled. By doing in this way, the electrical storage amount of the storage battery 14 can be ensured and it can prepare for a sudden power failure.

また、制御部６０は、外部装置から気象予測情報を取得し、取得された気象予測情報が昼間の晴天を示すものである場合には、図１に示す状態となるように切替部４１，４２を制御し、取得された天気情報が昼間の晴天以外を示すものである場合には、図３に示す状態となるように切替部４１，４２を制御することができる。このようにすることで、蓄電池１４の蓄電量を確保し、急な停電等に備えることができる。 Moreover, the control part 60 acquires weather prediction information from an external apparatus, and when the acquired weather prediction information shows the clear sky in the daytime, the switching parts 41 and 42 so that it may be in the state shown in FIG. If the acquired weather information indicates something other than sunny daytime, the switching units 41 and 42 can be controlled so as to be in the state shown in FIG. By doing in this way, the electrical storage amount of the storage battery 14 can be ensured and it can prepare for a sudden power failure.

また、制御部６０は、外部装置から計画停電情報を取得し、計画停電情報が取得された場合、又は、計画停電開始の所定時間前に図３に示す状態となるように切替部４１，４２を制御し、計画停電終了直後に図１に示す状態となるように切替部４１，４２を制御することができる。このようにすることで、計画停電が開始される前に蓄電池１４の蓄電量を増やしておくことができる。 Further, the control unit 60 acquires the planned power outage information from the external device, and when the planned power outage information is acquired or before the predetermined time before the planned power outage starts, the switching units 41 and 42 are brought into the state shown in FIG. The switching units 41 and 42 can be controlled so that the state shown in FIG. By doing in this way, the power storage amount of the storage battery 14 can be increased before the planned power outage is started.

また、制御部６０は、第二電力検出部５２の検出結果に基づいて特定負荷２２の使用履歴（消費電力履歴）を作成し、かかる使用履歴に基づいて、特定負荷２２の消費電力が大きい時間帯には、図３に示す状態となるように切替部４１，４２を制御し、特定負荷２２の消費電力が小さい時間帯には、図１に示す状態となるように切替部４１，４２を制御することができる。 Further, the control unit 60 creates a usage history (power consumption history) of the specific load 22 based on the detection result of the second power detection unit 52, and based on the usage history, the time when the power consumption of the specific load 22 is large In the band, the switching units 41 and 42 are controlled so as to be in the state shown in FIG. 3, and in the time zone where the power consumption of the specific load 22 is small, the switching units 41 and 42 are set in the state shown in FIG. Can be controlled.

また、特定負荷２２が空調機である場合には、制御部６０は、外気温度検出部（図示せず）によって検出された外気温度に基づいて、強い空調（冷暖房）を必要とする外気温度である場合（例えば、外気温度と図示しない内気温度検出部によって検出された施設内の内気温度との差の絶対値が所定値以上の場合）には、図３に示す状態となるように切替部４１，４２を制御し、弱い空調でもよい外気温度である場合（例えば、外気温度と図示しない内気温度検出部によって検出された施設内の内気温度との差の絶対値が前記所定値未満の場合）には、図１に示す状態となるように切替部４１，４２を制御することができる。 Further, when the specific load 22 is an air conditioner, the control unit 60 is an outside air temperature that requires strong air conditioning (cooling and heating) based on the outside air temperature detected by the outside air temperature detection unit (not shown). In some cases (for example, when the absolute value of the difference between the outside air temperature and the inside air temperature detected by the inside air temperature detecting unit (not shown) is greater than or equal to a predetermined value), the switching unit is set to the state shown in FIG. 41, 42 is controlled and the outside air temperature may be weak air conditioning (for example, when the absolute value of the difference between the outside air temperature and the inside air temperature detected by the inside air temperature detecting unit (not shown) is less than the predetermined value) ), The switching units 41 and 42 can be controlled so as to be in the state shown in FIG.

＜停電時その１＞
商用電源１１からの電力供給が断たれる停電時には、電力供給システム１は、特定負荷２２の使用電力を、発電機１２からの電力でまかなう。また、電力供給システム１は、重要負荷２３の使用電力を、太陽光発電池１３及び蓄電池１４からの電力でまかなう。 <At power failure 1>
At the time of a power failure in which the power supply from the commercial power supply 11 is cut off, the power supply system 1 supplies the power used by the specific load 22 with the power from the generator 12. In addition, the power supply system 1 supplies the power used by the important load 23 with the power from the solar battery 13 and the storage battery 14.

すなわち、図４に示すように、制御部６０は、停電検出部５４の検出結果が停電状態を示す場合に、発電機１２を駆動状態とし、第一切替部４１を、発電機１２と特定負荷２２とを接続する状態（すなわち、第一分電盤３１と特定負荷２２とを切断する状態）とし、第二切替部４２を、第二分電盤３２と蓄電池１４とを接続する状態（すなわち、第二分電盤３２と発電機１２とを切断する状態）とし、第四切替部４４を、蓄電池１４と第二分電盤３２とを切断する状態とする。また、第三切替部４３は、太陽光発電池１３と蓄電池１４を接続する状態（すなわち、太陽光発電池１３と第一分電盤３１とを切断する状態）となる。 That is, as illustrated in FIG. 4, when the detection result of the power failure detection unit 54 indicates a power failure state, the control unit 60 sets the generator 12 to the driving state, and sets the first switching unit 41 to the generator 12 and the specific load. 22 is connected (ie, the first distribution board 31 and the specific load 22 are disconnected), and the second switching unit 42 is connected to the second distribution board 32 and the storage battery 14 (ie, , A state in which the second distribution board 32 and the generator 12 are disconnected), and the fourth switching unit 44 is in a state in which the storage battery 14 and the second distribution panel 32 are disconnected. Moreover, the 3rd switching part 43 will be in the state (namely, the state which cut | disconnects the solar cell 13 and the 1st distribution board 31) which connects the solar cell 13 and the storage battery 14. FIG.

かかる状態において、一般負荷２１には電力が供給されない。また、発電機１２は、導線Ｌ５、第一切替部４１及び導線Ｌ４を介して特定負荷２２へ電力を供給する。太陽光発電池１３は、導線Ｌ１２、第三切替部４３及び導線Ｌ１４を介して蓄電池１４へ電力を供給し、蓄電池１４を充電する。蓄電池１４は、導線Ｌ８、第二切替部４２、導線Ｌ９、第二分電盤３２及び導線Ｌ１０を介して重要負荷２３へ電力を供給する。 In such a state, power is not supplied to the general load 21. Moreover, the generator 12 supplies electric power to the specific load 22 through the conducting wire L5, the first switching unit 41, and the conducting wire L4. The solar battery 13 supplies power to the storage battery 14 via the lead L12, the third switching unit 43, and the lead L14, and charges the storage battery 14. The storage battery 14 supplies power to the important load 23 via the conductor L8, the second switching unit 42, the conductor L9, the second distribution board 32, and the conductor L10.

＜停電時その２＞
商用電源１１からの電力供給が断たれる停電時において、太陽光発電池１３及び蓄電池１４から重要負荷２３への電力供給が十分に期待できない場合には、電力供給システム１は、特定負荷２２及び重要負荷２３の使用電力を、発電機１２からの電力でまかなう。また、電力供給システム１は、太陽光発電池１３からの電力によって蓄電池１４を充電する。 <At power failure 2>
In the event of a power failure when the power supply from the commercial power supply 11 is cut off, if the power supply from the solar battery 13 and the storage battery 14 to the important load 23 cannot be sufficiently expected, the power supply system 1 The power used by the important load 23 is covered by the power from the generator 12. Further, the power supply system 1 charges the storage battery 14 with the power from the solar battery 13.

すなわち、図５に示すように、制御部６０は、停電検出部５４の検出結果が停電状態を示す場合であって、太陽光発電池１３及び蓄電池１４から重要負荷２３への電力供給が十分に期待できない場合に、発電機１２を駆動状態とし、第一切替部４１を、発電機１２と特定負荷２２とを接続する状態（すなわち、第一分電盤３１と特定負荷２２とを切断する状態）とし、第二切替部４２を、第二分電盤３２と発電機１２とを接続する状態（すなわち、第二分電盤３２と蓄電池１４とを切断する状態）とし、第四切替部４４を、蓄電池１４と第二分電盤３２とを切断する状態とする。また、第三切替部４３は、太陽光発電池１３と蓄電池１４を接続する状態（すなわち、太陽光発電池１３と第一分電盤３１とを切断する状態）となる。 That is, as shown in FIG. 5, the control unit 60 is a case where the detection result of the power failure detection unit 54 indicates a power failure state, and the power supply from the solar battery 13 and the storage battery 14 to the important load 23 is sufficient. When it cannot be expected, the generator 12 is in a driving state, and the first switching unit 41 is connected to the generator 12 and the specific load 22 (that is, the first distribution board 31 and the specific load 22 are disconnected). ), The second switching unit 42 is set to a state in which the second distribution board 32 and the generator 12 are connected (that is, a state in which the second distribution board 32 and the storage battery 14 are disconnected), and the fourth switching unit 44 is set. Is in a state in which the storage battery 14 and the second distribution board 32 are disconnected. Moreover, the 3rd switching part 43 will be in the state (namely, the state which cut | disconnects the solar cell 13 and the 1st distribution board 31) which connects the solar cell 13 and the storage battery 14. FIG.

かかる状態において、一般負荷２１には電力が供給されない。また、発電機１２は、導線Ｌ５、第一切替部４１及び導線Ｌ４を介して特定負荷２２へ電力を供給するとともに、導線Ｌ５、導線Ｌ１１、第二切替部４２、導線Ｌ９、第二分電盤３２及び導線Ｌ１０を介して重要負荷２３へ電力を供給する。太陽光発電池１３は、導線Ｌ１２、第三切替部４３及び導線Ｌ１４を介して蓄電池１４へ電力を供給し、蓄電池１４を充電する。 In such a state, power is not supplied to the general load 21. Further, the generator 12 supplies power to the specific load 22 via the conducting wire L5, the first switching unit 41, and the conducting wire L4, and the conducting wire L5, the conducting wire L11, the second switching unit 42, the conducting wire L9, and the second power distribution. Electric power is supplied to the important load 23 via the panel 32 and the conductive wire L10. The solar battery 13 supplies power to the storage battery 14 via the lead L12, the third switching unit 43, and the lead L14, and charges the storage battery 14.

「蓄電池１４から重要負荷２３への電力供給が十分に期待できない場合」としては、蓄電池１４の蓄電量が少ない場合、夜間、雨天時等、太陽光発電池１３による発電の量が少ない場合、等が挙げられる。本実施形態において、制御部６０は、蓄電池１４の蓄電量を検出する蓄電量検出部５５の検出結果を取得し、取得された蓄電量が第一閾値（フル充電状態、又は、フル充電状態に近い蓄電量）以上の場合には図４に示す状態となるように切替部４１，４２を制御し、取得された蓄電量が第二閾値（第一閾値よりも小さい）未満の場合には図５に示す状態となるように切替部４１，４２を制御することができる。 “When the power supply from the storage battery 14 to the important load 23 cannot be sufficiently expected” includes the case where the storage battery 14 has a small amount of electricity stored, the amount of power generated by the solar battery 13 is low, such as at night or in the rain, etc. Is mentioned. In the present embodiment, the control unit 60 acquires the detection result of the storage amount detection unit 55 that detects the storage amount of the storage battery 14, and the acquired storage amount is set to a first threshold (full charge state or full charge state). When the amount of stored electricity is less than the second threshold (smaller than the first threshold), the switching units 41 and 42 are controlled so that the state shown in FIG. The switching units 41 and 42 can be controlled so that the state shown in FIG.

変形例として、制御部６０は、太陽光発電池１３が設けられた屋上の明度を検出する明度検出部（図示せず）の検出結果を取得し、取得された明度が閾値以上の場合には図４に示す状態となるように切替部４１，４２を制御し、取得された明度が閾値未満の場合には図５に示す状態となるように切替部４１，４２を制御することができる。 As a modification, the control unit 60 acquires a detection result of a lightness detection unit (not shown) that detects the lightness of the roof provided with the solar battery 13, and when the acquired lightness is equal to or greater than a threshold value. The switching units 41 and 42 are controlled so as to be in the state shown in FIG. 4, and when the acquired brightness is less than the threshold value, the switching units 41 and 42 can be controlled so as to be in the state shown in FIG.

また、制御部６０は、内蔵の又は外部の時計に基づいて、昼間には図４に示す状態となるように切替部４１，４２を制御し、夜間には図５に示す状態となるように切替部４１，４２を制御することができる。
また、制御部６０は、外部装置から気象予測情報を取得し、取得された気象予測情報が昼間の晴天を示すものである場合には、図４に示す状態となるように切替部４１，４２を制御し、取得された天気情報が昼間の晴天以外を示すものである場合には、図５に示す状態となるように切替部４１，４２を制御することができる。 Further, the control unit 60 controls the switching units 41 and 42 so as to be in the state shown in FIG. 4 during the daytime based on a built-in or external clock, and is in the state shown in FIG. 5 at night. The switching units 41 and 42 can be controlled.
Moreover, the control part 60 acquires weather prediction information from an external apparatus, and when the acquired weather prediction information shows the clear sky in the daytime, the switching parts 41 and 42 so that it may be in the state shown in FIG. If the acquired weather information indicates something other than sunny daytime, the switching units 41 and 42 can be controlled so as to be in the state shown in FIG.

ここで、発電機１２が第一分電盤３１に対して商用電源１１と同側に設けられた場合には、発電機１２からの電力は、一般負荷２１にも供給されてしまう。また、第一分電盤３１の商用電源１１及び発電機１２側の導線（電力線）が断線した場合には、一般負荷２１にも特定負荷２２にも電力を供給することができなくなる。 Here, when the generator 12 is provided on the same side as the commercial power supply 11 with respect to the first distribution board 31, the electric power from the generator 12 is also supplied to the general load 21. Moreover, when the commercial power supply 11 of the first distribution board 31 and the conductor (power line) on the generator 12 side are disconnected, it becomes impossible to supply power to both the general load 21 and the specific load 22.

これに対し、本発明の実施形態に係る電力供給システム１は、発電機１２が第一分電盤３１に対して特定負荷２２と同側に設けられており、第一切替部４１が特定負荷２２の接続先を商用電源１１と発電機１２とで切り替えることができるので、例えば消費電力増大時には、一般負荷２１への電力供給源を商用電源１１とするとともに特定負荷２２への電力供給源を発電機１２とし、特定負荷２２に対して確実に電力を供給することができる。 On the other hand, in the power supply system 1 according to the embodiment of the present invention, the generator 12 is provided on the same side as the specific load 22 with respect to the first distribution board 31, and the first switching unit 41 is the specific load. 22 can be switched between the commercial power supply 11 and the generator 12. For example, when the power consumption increases, the power supply source to the general load 21 is the commercial power supply 11 and the power supply source to the specific load 22 is used. The generator 12 can be used to reliably supply power to the specific load 22.

また、電力供給システム１は、第二切替部４２が重要負荷２３の接続先を発電機１２と蓄電池１４とで切り替えることができるので、例えば施設の使用電力増大時には、重要負荷２３への電力供給源を発電機１２とし、重要負荷２３に対して確実に電力を供給することができる。 Moreover, since the 2nd switching part 42 can switch the connection destination of the important load 23 with the generator 12 and the storage battery 14 in the power supply system 1, for example, when the power consumption of a facility increases, the power supply to the important load 23 The power source can be the generator 12 and power can be reliably supplied to the important load 23.

また、電力供給システム１は、第三切替部４３が太陽光発電池１３の接続先を第一分電盤３１と蓄電池１４とで切り替えることができるので、例えば通常時には、太陽光発電池１３からの電力を商用電源１１の補佐として第一分電盤３１へ送り、例えば停電時には、太陽光発電池１３からの電力を第一分電盤３１を介さずに蓄電池１４へ直接送るので、太陽光発電地１３からの電力を一般負荷２１及び特定負荷２２へ供給せずに重要負荷２３のみに供給したり、太陽光発電池１３からの電力によって蓄電池１４を充電したりすることができる。 Moreover, since the 3rd switching part 43 can switch the connection destination of the solar cell 13 with the 1st electricity distribution panel 31 and the storage battery 14, the electric power supply system 1 is from the solar cell 13 at normal time, for example. Power is sent to the first distribution board 31 as an assistant to the commercial power supply 11. For example, in the event of a power failure, the power from the solar battery 13 is sent directly to the storage battery 14 without going through the first distribution board 31. The power from the power generation site 13 can be supplied only to the important load 23 without being supplied to the general load 21 and the specific load 22, or the storage battery 14 can be charged with the power from the solar battery 13.

また、電力供給システム１は、停電時における重要負荷２３への電力供給源である蓄電池１４のバックアップが太陽光発電池１３及び発電機１２と二重となっているので、停電時における重要負荷２３の使用継続可能時間を大幅に改善することができる。 Moreover, since the backup of the storage battery 14 which is the power supply source to the important load 23 at the time of a power failure is doubled with the solar battery 13 and the generator 12, the power supply system 1 has the important load 23 at the time of a power failure. It is possible to greatly improve the continuous use time of.

１電力供給システム
１１商用電源
１２発電機
１３太陽光発電池
１４蓄電池
２１一般負荷（第一負荷）
２２特定負荷（第二負荷）
２３重要負荷（第三負荷）
３１第一分電盤（分電盤）
３２第二分電盤
４１第一切替部
４２第二切替部
４３第三切替部
６０制御部
Ｌ１４導線（非常用導線） DESCRIPTION OF SYMBOLS 1 Electric power supply system 11 Commercial power supply 12 Generator 13 Solar battery 14 Storage battery 21 General load (1st load)
22 Specific load (second load)
23 Important load (third load)
31 First distribution board (distribution board)
32 2nd distribution board 41 1st switching part 42 2nd switching part 43 3rd switching part 60 Control part L14 conducting wire (emergency conducting wire)

Claims

A distribution board for distributing the power supplied from the commercial power source to the first load and the second load;
A generator that is provided on the same side as the second load with respect to the distribution board, and that can supply power to the second load;
Connecting the distribution board and the second load and disconnecting the generator and the second load; disconnecting the distribution board and the second load; and the generator and the second load A state of connecting a load, a first switching unit capable of switching,
Equipped with a,
The distribution board distributes power supplied from the commercial power source to a storage battery, and supplies power supplied from a solar battery in addition to power supplied from the commercial power source to the first load, the first Power distribution to two loads and the storage battery,
The storage battery and the generator can supply power to a third load,
The solar battery is capable of supplying power to the storage battery via an emergency lead without going through the distribution board,
Connecting the storage battery and the third load and disconnecting the generator and the third load; disconnecting the storage battery and the third load and connecting the generator and the third load A second switching unit capable of switching between
The solar battery and the distribution board are connected, the solar battery and the storage battery are disconnected on the emergency conductor side, and the solar battery and the distribution board are disconnected. And a state where the solar battery and the storage battery are connected on the emergency conductor side, and a third switching unit capable of switching,
The power supply system further comprising:

A control unit for controlling the generator and the first switching unit;
The controller is configured to drive the generator and to connect the generator and the second load while driving the generator and disconnecting the distribution board and the second load when the power consumption is increased. The power supply system according to claim 1, wherein: