JPH01318519A - Method of supplying power for controlling solar photovoltaic power generation system - Google Patents

Method of supplying power for controlling solar photovoltaic power generation system

Info

Publication number
JPH01318519A
JPH01318519A JP63149577A JP14957788A JPH01318519A JP H01318519 A JPH01318519 A JP H01318519A JP 63149577 A JP63149577 A JP 63149577A JP 14957788 A JP14957788 A JP 14957788A JP H01318519 A JPH01318519 A JP H01318519A
Authority
JP
Japan
Prior art keywords
power
battery
generation system
storage battery
supplied
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63149577A
Other languages
Japanese (ja)
Inventor
Tetsuo Yoshimi
吉見　哲夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Priority to JP63149577A priority Critical patent/JPH01318519A/en
Publication of JPH01318519A publication Critical patent/JPH01318519A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE:To utilize the power of a battery by driving a control device in a solar photovoltaic power generation system by using the output of solar batteries during the irradiation of sunlight and using the power charged to the battery in case of no sunlight irradiation. CONSTITUTION:Output of solar batteries 1-1 to 1-n are connected in parallel through switches 2-1 to 2-n and reverse-current blocking diodes 3-1 to 3-n, and battery 5 is charged through an electromagnetic switch 4, but, at the same time, a DC is supplied to an inverter or a DC load from a terminal T1. While, the output of the solar batteries 1-1 to 1-n is supplied to a D/D converter 12 through fuses 9-1 to 9-n, reverse-current blocking diodes 10-1 to 10-n and 11 to reach a specific voltage, and is supplied to a control circuit in the solar photovoltaic power generation system from a terminal T2. In case of shortage of sunlight during the night and day time, the output of the battery 5 is supplied to the D/D converter 12 through a fuse 6, diodes 7 and 8. According to the constitution, the power charged to the battery is utilized effectively, and the battery's span of life is also improved.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は太陽電池、蓄電池及び制御装置等を具備する太
陽光発電システムにおいて、制御装置に供給する制御電
源供給方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control power supply method for supplying power to a control device in a solar power generation system that includes a solar cell, a storage battery, a control device, and the like.

〔従来技術〕[Prior art]

従来、太陽電池、蓄電池、電磁開閉器及び制御装置等を
具備する太陽光発電システムにおいては、制御装置に供
給する制御電源は、安定した電源が確保できるという理
由から、蓄電池から得ていた。Conventionally, in a solar power generation system equipped with a solar cell, a storage battery, an electromagnetic switch, a control device, etc., the control power supplied to the control device has been obtained from the storage battery because a stable power source can be ensured.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記蓄電池から制御Ｎ、源を得る方法では、昼間太陽光
が照射され余分な電力を発電できる時でも蓄電池から制
御電源を得るため、蓄電池に貯えられた電力を有効に利
用する方法ではなく、且つ蓄電池の充放電サイクルが多
くなり、蓄電池の寿命においても好ましいものではなか
った。そこで、蓄電池に貯えられた電力をより有効に使
用するために、制御装置に極力機械ラッチ式継電器等を
使用し、制御消費重力を下げる等の工夫が必要であった
。しかしながら、機械ラッチ式継Ｔ器は高価であり、長
時間の使用中に故障が発生する等の問題があった。In the above method of obtaining a control source from a storage battery, control power is obtained from the storage battery even when sunlight is irradiated during the day and excess power can be generated, so it is not a method to effectively use the power stored in the storage battery, and The number of charging/discharging cycles of the storage battery increased, and the life of the storage battery was not favorable. Therefore, in order to use the electric power stored in the storage battery more effectively, it was necessary to use mechanical latching type relays in the control device as much as possible to reduce the control consumption. However, mechanically latched T-type joints are expensive and have problems such as failure during long-term use.

本発明は上述の点に鑑みてなされたもので、制御装置に
機械ラッチ式継電器を用いることなく、制御装置へ供給
する制御電源を太陽光が照射されている時は太陽電池か
ら直接得、太陽光が照射されていない時は蓄電池から得
るようにし、蓄電池に貯えられた電力を有効に利用でき
る太陽光発電システムにおける制御電源供給方式を提供
することにある。The present invention has been made in view of the above points, and the control power supplied to the control device is obtained directly from the solar cell when sunlight is irradiated, without using a mechanical latching relay in the control device. An object of the present invention is to provide a controlled power supply system in a solar power generation system that can obtain power from a storage battery when light is not being irradiated and can effectively utilize the power stored in the storage battery.

〔課題を解決するための手段〕[Means to solve the problem]

上記課題を解決するため本発明は、第１図に示すように
、太陽電池１−１〜１−ｎ、蓄電池５及び制御電源を供
給するためのＤ／Ｄコンバータ１２を具備する太陽光発
電システムにおいて、太陽電池１−１〜１−ｎから制御
電源を供給する回路（ダイオード１０−１〜１０−ｎと
ダイオード１１からなる回路）と、蓄電池５から制御電
源を供給する回路（ダイオード７及びダイオード８から
なる回路）を設けて太陽光発電システムにおける制御電
源を構成した。In order to solve the above problems, the present invention provides a solar power generation system comprising solar cells 1-1 to 1-n, a storage battery 5, and a D/D converter 12 for supplying control power, as shown in FIG. , a circuit that supplies control power from solar cells 1-1 to 1-n (a circuit consisting of diodes 10-1 to 10-n and diode 11) and a circuit that supplies control power from storage battery 5 (a circuit consisting of diode 7 and diode 11). A control power supply in a solar power generation system was constructed by providing a circuit consisting of 8).

〔作用〕 太陽光発電システムにおける制御電源を上記の如く構成
することにより、昼間太陽光が照射されている間で、蓄
電池５の充電の都合上、例えば開閉器２−１を開放した
場合、太陽電池１−１の電圧は上昇し、逆流阻止ダイオ
ード１ｏ−１及び逆流阻止ダイオード１１を通して、太
陽電池１−１から制御用の電力がＤ／Ｄコンバータ１２
に供給きれるが、太陽光が照射されない時及び夜間は逆
流阻止ダイオード７及び８を通して蓄電池５から制御用
の電力がＤ／Ｄコンバータ１２に供給される。従って、
蓄電池５に貯えられた電力を有効に利用することができ
る。[Function] By configuring the control power supply in the solar power generation system as described above, for example, when the switch 2-1 is opened for charging the storage battery 5 during daytime sunlight, the The voltage of the battery 1-1 increases, and the control power is transferred from the solar cell 1-1 to the D/D converter 12 through the reverse current blocking diode 1o-1 and the reverse current blocking diode 11.
However, when there is no sunlight and at night, control power is supplied from the storage battery 5 to the D/D converter 12 through the backflow blocking diodes 7 and 8. Therefore,
The electric power stored in the storage battery 5 can be used effectively.

〔実施例〕〔Example〕

以下、本発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.

第１図は、本発明の制御電源供給方式を適用する太陽光
発電システムの構成を示すブロック図である。１−１．
１−２〜１−ｎは太陽電池、２−１．２−２〜２−ｎは
開閉器、３−１．３−２〜３−ｎは逆流阻止ダイオード
、４は電磁開閉器、５は蓄電池、６はヒユーズ、７は逆
流阻止ダイオード、８は逆流阻止ダイオード、９−１．
９−２〜９−　ｎはヒユーズ、１０−１　、１０−２〜
１０−ｎは逆流阻止ダイオード、工１は逆流阻止ダイオ
ード、１２はＤ／Ｄコンバータである。端子Ｔ１には、
図示しないインバータ又は直流負荷が接続され、端子Ｔ
、には前記開閉器２−１〜２−ｎ、電磁開閉器４等を制
御する制御電源が供給される。FIG. 1 is a block diagram showing the configuration of a solar power generation system to which the controlled power supply system of the present invention is applied. 1-1.
1-2 to 1-n are solar cells, 2-1.2-2 to 2-n are switches, 3-1.3-2 to 3-n are backflow blocking diodes, 4 is an electromagnetic switch, and 5 is a Storage battery, 6 a fuse, 7 a reverse current blocking diode, 8 a reverse current blocking diode, 9-1.
9-2~9-n is fuse, 10-1, 10-2~
10-n is a backflow blocking diode, 1 is a backflow blocking diode, and 12 is a D/D converter. At terminal T1,
An inverter or DC load (not shown) is connected to terminal T.
A control power source for controlling the switches 2-1 to 2-n, the electromagnetic switch 4, etc. is supplied to .

上記構成の太陽光発電システムにおいて、太陽電池１−
１．１−２〜１−ｎで発電された直流は開閉器２−１．
２−２〜２−ｎ１逆流阻止ダイオード３−１．３−２〜
３−ｎ及び電磁開閉器４を通して蓄電池５に貯えられる
。また、端子Ｔ。In the solar power generation system having the above configuration, the solar cell 1-
The direct current generated by 1.1-2 to 1-n is transferred to switch 2-1.
2-2~2-n1 backflow blocking diode 3-1.3-2~
3-n and is stored in the storage battery 5 through the electromagnetic switch 4. Also, terminal T.

からはインバータ又は直流負荷に電力が供給されている
。また、ヒユーズ９−１．９−２〜９−ｎ、逆流阻止ダ
イオード１０−１．１０−２〜１０−ｎ及び逆流阻止ダ
イオード１１を通して太陽電池１−１．１−２〜１−ｎ
から直接供給きれる第１の制御電源供給回路と、Ｄ／Ｄ
コンバータ１２にはヒユーズ６及び逆流阻止ダイオード
７゜８を通して蓄電池５から電力を供給する第２の制御
電源供給回路とが設けられている。Power is supplied to an inverter or DC load. In addition, solar cells 1-1.1-2 to 1-n are connected through fuses 9-1.9-2 to 9-n, backflow blocking diodes 10-1.
A first control power supply circuit that can be directly supplied from the D/D
The converter 12 is provided with a second controlled power supply circuit that supplies power from the storage battery 5 through the fuse 6 and the reverse current blocking diode 7.8.

昼間太陽光が照射されている間で、開閉器２−１．２−
２〜２−ｎが全部閉じられている時は、前記第１の制御
電源供給回路を通して太陽電池１−１　、１−２〜１−
ｎから制御ＸＳを供給しても、また前記第２の制御電源
供給回路を通して蓄電池５から供給しても同じではある
が、蓄電池５の充電の都合で例えば開閉器２−１が開放
した時は、太陽電池１−１の負荷はなくなるので該太陽
電池１〜１は開放電圧近くまで上昇する。その為前記第
１の制御電源供給回路のヒユーズ９−１、逆流阻止ダイ
オード１０−１及び逆流阻止ダイオード１１を通して、
太陽電池１−１から電力がＤ／Ｄフンバータ１２に供給
され、該Ｄ／Ｄコンバータ１２で所定の電圧値に調整さ
れ、端子Ｔ。During daytime sunlight, switch 2-1.2-
When all of solar cells 2 to 2-n are closed, the solar cells 1-1, 1-2 to 1-
Although it is the same whether the control XS is supplied from n or from the storage battery 5 through the second control power supply circuit, for example, when the switch 2-1 is opened due to charging of the storage battery 5, Since the load on the solar cells 1-1 disappears, the voltage of the solar cells 1-1 rises to near the open-circuit voltage. Therefore, through the fuse 9-1, the reverse current blocking diode 10-1, and the reverse current blocking diode 11 of the first control power supply circuit,
Electric power is supplied from the solar cell 1-1 to the D/D converter 12, adjusted to a predetermined voltage value by the D/D converter 12, and then connected to the terminal T.

から制御装置に制御電源を供給する。これにより、制御
電源は蓄電池５より供給する必要がなくなり、より有効
に負荷に供給することが可能となる。また、昼間太陽光
が照射されない間及び夜間は蓄電池５から前記第２の制
御電源供給回路であるヒユーズ６及び逆流阻止ダイオー
ド７．８を通して供給される。Supplies control power to the control device. This eliminates the need to supply the control power from the storage battery 5, making it possible to supply the control power to the load more effectively. Further, during the daytime when sunlight is not irradiated and at night, power is supplied from the storage battery 5 through the fuse 6 and backflow blocking diode 7.8, which are the second control power supply circuit.

なお、第１図の太陽光発電システム構成は本発明の一実
施例であり、本発明の制御電源供給方式はこれに限定き
れるものではなく、要は太陽電池から直接制御装置に電
源を供給する第１の制御Ｔ源供給手段と、蓄電池から前
記制御装置に電源を供給する第２の制御電源供給手段と
を設け、制御電源を太陽光が照射されている昼間は第１
の制御電源供給手段を用いて太陽電池から供給し、太陽
光が照射されていない昼間及び夜間は第２の制御電源供
給手段を用いて蓄電池から直接供給するように構成すれ
ば良い。Note that the solar power generation system configuration shown in FIG. 1 is one embodiment of the present invention, and the controlled power supply system of the present invention is not limited to this, and the point is that power is supplied directly from the solar cell to the control device. A first controlled power source supply means and a second controlled power supply means for supplying power from a storage battery to the control device are provided, and the control power source is connected to the first controlled power source during the daytime when sunlight is irradiated.
The second controlled power supply means may be used to supply power from the solar cell, and during the day and night when sunlight is not irradiated, the second controlled power supply means may be used to supply power directly from the storage battery.

〔発明の効果〕〔Effect of the invention〕

以上、説明したように本発明によれば制御電源を太陽光
が照射されている昼間は第１の制御電源供給手段を用い
て太陽電池から供給し、太陽光が照射されていない昼間
及び夜間は第２の制御電源供給手段を用いて蓄電池から
供給できるようにするので、蓄電池に充電された電力を
有効に利用することができ、蓄電池の寿命等においても
好適であるという優れた効果が得られる。As described above, according to the present invention, control power is supplied from the solar cell using the first control power supply means during the daytime when sunlight is irradiated, and during the daytime and night when sunlight is not irradiated. Since the second controlled power supply means can be used to supply power from the storage battery, the electric power charged in the storage battery can be used effectively, and an excellent effect can be obtained in that it is suitable for the life of the storage battery, etc. .

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の制御電源供給方式を適用する太陽光発
電システムの構成を示すブロック図である。 図中、１−１．１−２〜１−ｎ・・・・太陽電池、２−
１．２−２〜２−ｎ・・・・開閉器、３−１　、３−２
〜３−ｎ・・・・逆流阻止ダイオード、４・・・・電磁
開閉器、６・・・・ヒユーズ、７．８・・・・逆流阻止
ダイオード、９−１．９−２〜９−ｎ・・・・ヒユーズ
、１０−１　、１０−２〜１０−ｎ−逆流阻止ダイ才−
ド、１１・・・・逆流阻止ダイオード、１２・・・・Ｄ
／Ｄコンバータ。FIG. 1 is a block diagram showing the configuration of a solar power generation system to which the controlled power supply system of the present invention is applied. In the figure, 1-1.1-2 to 1-n...solar cells, 2-
1.2-2 to 2-n...Switch, 3-1, 3-2
~3-n... Backflow blocking diode, 4... Electromagnetic switch, 6... Fuse, 7.8... Backflow blocking diode, 9-1.9-2 ~ 9-n ... Fuse, 10-1, 10-2 to 10-n-backflow prevention die-
D, 11...Reverse current blocking diode, 12...D
/D converter.

Claims (1)

【特許請求の範囲】[Claims] 太陽電池、蓄電池及び制御装置等を具備する太陽光発電
システムにおいて、前記太陽電池から直接前記制御装置
に電源を供給する第１の制御電源供給手段と、前記蓄電
池から前記制御装置に電源を供給する第２の制御電源供
給手段とを設け、制御電源を太陽光が照射されている昼
間は前記第１の制御電源供給手段を用いて太陽電池から
供給し、太陽光が照射されていない昼間及び夜間は第２
の制御電源供給手段を用いて前記蓄電池から供給できる
ようにすることを特徴とする太陽光発電システムにおけ
る制御電源供給方式。In a solar power generation system comprising a solar cell, a storage battery, a control device, etc., a first control power supply means supplies power directly from the solar cell to the control device; and a first control power supply means supplies power from the storage battery to the control device. A second controlled power supply means is provided, and the control power is supplied from the solar cell using the first controlled power supply means during the daytime when sunlight is irradiated, and during the daytime when sunlight is not irradiated and at night. is the second
1. A controlled power supply system in a solar power generation system, characterized in that the controlled power supply means can be used to supply power from the storage battery.
JP63149577A 1988-06-17 1988-06-17 Method of supplying power for controlling solar photovoltaic power generation system Pending JPH01318519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63149577A JPH01318519A (en) 1988-06-17 1988-06-17 Method of supplying power for controlling solar photovoltaic power generation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63149577A JPH01318519A (en) 1988-06-17 1988-06-17 Method of supplying power for controlling solar photovoltaic power generation system

Publications (1)

Publication Number Publication Date
JPH01318519A true JPH01318519A (en) 1989-12-25

Family

ID=15478237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63149577A Pending JPH01318519A (en) 1988-06-17 1988-06-17 Method of supplying power for controlling solar photovoltaic power generation system

Country Status (1)

Country Link
JP (1) JPH01318519A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04128040U (en) * 1991-05-16 1992-11-20 神鋼電機株式会社 Cutoff circuit when control power supply abnormality occurs in protective relay system
WO2008026425A1 (en) * 2006-08-28 2008-03-06 Sharp Kabushiki Kaisha Power conditioner
KR100887620B1 (en) * 2007-11-06 2009-03-11 이현호 Small Charging Device Using Photoelectric Effect
WO2012129780A1 (en) * 2011-03-29 2012-10-04 阿特斯(中国)投资有限公司 Energy-conversion power generation system with emergency switch
CN104333322A (en) * 2013-10-31 2015-02-04 柳州市安龙机械设备有限公司 Photovoltaic power generator device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04128040U (en) * 1991-05-16 1992-11-20 神鋼電機株式会社 Cutoff circuit when control power supply abnormality occurs in protective relay system
WO2008026425A1 (en) * 2006-08-28 2008-03-06 Sharp Kabushiki Kaisha Power conditioner
US8106535B2 (en) 2006-08-28 2012-01-31 Sharp Kabushiki Kaisha Power conditioner
KR100887620B1 (en) * 2007-11-06 2009-03-11 이현호 Small Charging Device Using Photoelectric Effect
WO2012129780A1 (en) * 2011-03-29 2012-10-04 阿特斯(中国)投资有限公司 Energy-conversion power generation system with emergency switch
CN103190055A (en) * 2011-03-29 2013-07-03 阿特斯(中国)投资有限公司 Energy-conversion power generation system with emergency switch
CN104333322A (en) * 2013-10-31 2015-02-04 柳州市安龙机械设备有限公司 Photovoltaic power generator device

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