JP3147257B2 - Grid-connected power system - Google Patents

Grid-connected power system

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Publication number
JP3147257B2
JP3147257B2 JP35269392A JP35269392A JP3147257B2 JP 3147257 B2 JP3147257 B2 JP 3147257B2 JP 35269392 A JP35269392 A JP 35269392A JP 35269392 A JP35269392 A JP 35269392A JP 3147257 B2 JP3147257 B2 JP 3147257B2
Authority
JP
Japan
Prior art keywords
storage battery
power
solar cell
power supply
bidirectional converter
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.)
Expired - Fee Related
Application number
JP35269392A
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Japanese (ja)
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JPH06178461A (en
Inventor
孝之 大橋
Original Assignee
日本電池株式会社
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Priority to JP35269392A priority Critical patent/JP3147257B2/en
Publication of JPH06178461A publication Critical patent/JPH06178461A/en
Application granted granted Critical
Publication of JP3147257B2 publication Critical patent/JP3147257B2/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/51—Photovoltaic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/63—Monitoring or controlling charging stations in response to network capacity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、系統連系太陽光発電シ
ステム、夜間電力有効利用のためのロードレベリングシ
ステム、ＵＰＳシステム、電気自動車の普通充電と急速
充電システム等の系統連系電源システムに関するもので
あり、特に、システムにおける単一の交流直流双方向コ
ンバータの有効利用に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grid-connected power supply system such as a grid-connected photovoltaic power generation system, a load leveling system for effective use of nighttime power, a UPS system, and a normal charging and quick charging system for electric vehicles. And more particularly to the efficient use of a single AC / DC bidirectional converter in a system.

【０００２】[0002]

【従来の技術とその課題】従来、太陽電池や夜間電力な
どにより電気自動車用蓄電池を充電する場合、太陽電池
出力あるいは蓄電池出力を一旦交流に変換し、再び充電
器により直流に変換して電気自動車用蓄電池を充電して
いたため、エネルギー効率が悪くなる欠点があった。ま
た、従来の電源システムでは太陽電池や夜間電力の有効
利用が必ずしも充分には出来ていなかった。2. Description of the Related Art Conventionally, when a storage battery for an electric vehicle is charged by a solar cell or nighttime power, the output of the solar cell or the output of the storage battery is once converted into an alternating current, and then converted into a direct current again by a charger to be used in an electric vehicle. There was a drawback that energy efficiency deteriorated because the storage battery was charged. In addition, the conventional power supply system has not always sufficiently utilized the solar cell and the nighttime electric power.

【０００３】[0003]

【課題を解決するための手段】本発明は上述したような
従来の欠点を改良したものであり、交流直流双方向コン
バータの交流側が系統電源と負荷とに接続され、交流直
流双方向コンバータの直流側に太陽電池と、第１の蓄電
池とが並列に接続されてなる系統連係電源システムであ
って、交流直流双方向コンバータの直流側に、太陽電池
と、第１の蓄電池とに並列に電気自動車に搭載された自
動車用蓄電池が接続可能とされていることを特徴とする
ものである。なお、自動車用蓄電池は、直列に電圧調整
器を介して接続可能とされても直接に接続可能とされて
もいずれでも良い。SUMMARY OF THE INVENTION The present invention is an improvement on the above-mentioned conventional disadvantages. The AC side of an AC / DC bidirectional converter is connected to a system power supply and a load. A system-linked power supply system in which a solar cell and a first storage battery are connected in parallel, and the electric vehicle is connected in parallel with the solar cell and the first storage battery on the DC side of the AC / DC bidirectional converter. The vehicle storage battery mounted on the vehicle is connectable. The vehicle storage battery may be connected in series via a voltage regulator or may be directly connected.

【０００４】[0004]

【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１は本発明系統連系電源システムの一実施例
を示す回路図であり、１は系統電源、３は開閉器、５は
交流直流双方向コンバータ、７は太陽電池、９は太陽電
池７の逆流阻止ダイオード、１１は第一電磁接触器、１
３は第一の蓄電池、１５は第二の電磁接触器、１７は電
圧調整器を構成する直流直流コンバータ、１９は第三の
電磁接触器、２１は第二の蓄電池を構成する電気自動車
用蓄電池である。また、２３は無停電負荷、２５は停電
負荷である。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram showing an embodiment of the system interconnection power supply system of the present invention, wherein 1 is a system power supply, 3 is a switch, 5 is an AC / DC bidirectional converter, 7 is a solar cell, and 9 is a solar cell 7. Backflow prevention diode, 11 is a first magnetic contactor, 1
3 is a first storage battery, 15 is a second electromagnetic contactor, 17 is a DC / DC converter constituting a voltage regulator, 19 is a third electromagnetic contactor, 21 is a storage battery for an electric vehicle constituting a second storage battery It is. Reference numeral 23 denotes an uninterruptible load, and reference numeral 25 denotes a power outage load.

【０００５】まず、第二の蓄電池２１が接続されていな
いときについて説明する。夜間電力時間帯においては系
統１より商用電力を受電し、直接停電負荷２５および開
閉器３を介して無停電負荷２３に電力を供給すると共
に、交流直流双方向コンバータ５を整流器として動作さ
せ、第一の電磁接触器１１を介して第一の蓄電池１３を
充電する。First, a case where the second storage battery 21 is not connected will be described. In the nighttime power time zone, commercial power is received from the grid 1, power is directly supplied to the uninterruptible load 23 via the power failure load 25 and the switch 3, and the AC / DC bidirectional converter 5 is operated as a rectifier. The first storage battery 13 is charged via one electromagnetic contactor 11.

【０００６】また、停電時は開閉器３を高速で開くと共
に、第一の蓄電池１３を電源として交流直流双方向コン
バータ５をインバータとして動作させ、無停電負荷２３
に電力を供給し続ける。昼間太陽電池７の出力があると
きは太陽電池の出力を交流直流双方向コンバータ５によ
り交流に変換して負荷２３，２５および系統１に電力を
供給する。In the event of a power failure, the switch 3 is opened at a high speed, the AC / DC bidirectional converter 5 is operated as an inverter using the first storage battery 13 as a power source, and the uninterruptible load 23 is operated.
Continue to supply power to. When there is an output of the solar cell 7 during the day, the output of the solar cell is converted into an AC by the AC / DC bidirectional converter 5 to supply power to the loads 23 and 25 and the system 1.

【０００７】次に、第二の蓄電池２１が接続されている
ときについて説明する。第二の蓄電池２１は第二の電磁
接触器１５を介して、また、必要な場合には電圧調整器
１７を介して、あるいは第三の電磁接触器１９を閉じて
充電される。夜間電力時間帯においては、第一の蓄電池
１３と並列に充電されるか、あるいは時間差をつけて充
電される。昼間太陽電池の出力があるときは、優先的に
太陽電池の出力により、第二の蓄電池２１が充電され
る。第二の蓄電池２１の急速充電が必要なときには、第
一の蓄電池１３を電源として充電される。また、系統か
ら交流直流コンバータ５を整流器動作をさせて充電する
ことも可能である。Next, a case where the second storage battery 21 is connected will be described. The second storage battery 21 is charged via the second electromagnetic contactor 15 and, if necessary, via the voltage regulator 17 or with the third electromagnetic contactor 19 closed. In the nighttime power zone, the battery is charged in parallel with the first storage battery 13 or charged with a time difference. When there is an output of the solar cell during the day, the second storage battery 21 is charged by the output of the solar cell preferentially. When quick charging of the second storage battery 21 is necessary, the second storage battery 21 is charged using the first storage battery 13 as a power supply. It is also possible to charge the AC / DC converter 5 by operating the rectifier from the system.

【０００８】[0008]

【発明の効果】本発明を利用することにより経済的に総
合的な系統連係電源システムを構成できる上に、複数の
直流電源から直流電力を一旦交流に戻すことなく電気自
動車用蓄電池に供給することができ、エネルギーの有効
利用に寄与することができる。また、緊急時には電気自
動車に搭載された自動車用蓄電池である第二の蓄電池２
１と双方向性直流直流コンバータによる電圧調整器１７
を用いて、あるいは第二の蓄電池２１のみでＵＰＳ用電
源、あるいは系統への逆潮流を行うことも可能である。
また、電圧調整器１７を太陽電池最大出力追従制御とす
ることにより、より有効な太陽電池の利用を行うことも
可能である。According to the present invention, it is possible to economically construct a comprehensive system-linked power supply system, and to supply DC power from a plurality of DC power supplies to a storage battery for an electric vehicle without returning it to AC. And contribute to the effective use of energy. In an emergency, a second storage battery 2 which is a storage battery for a vehicle mounted on an electric vehicle is provided.
1 and voltage regulator 17 by bidirectional DC / DC converter
Or a reverse power flow to the UPS power supply or the system can be performed using only the second storage battery 21.
Further, by setting the voltage regulator 17 to the solar cell maximum output follow-up control, it is possible to use the solar cell more effectively.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明系統連系電源システムの一実施例を示す
回路図FIG. 1 is a circuit diagram showing one embodiment of a system interconnection power supply system of the present invention.

【符号の説明】[Explanation of symbols]

１ 系統電源 ３ 開閉器 ５ 交流直流双方向コンバータ ７ 太陽電池 ９ ダイオード 11 第一の電磁接触器 13 第一の蓄電池 15 第二の電磁接触器 17 電圧調整器 19 第三の電磁接触器 21 第二の蓄電池 23 無停電負荷 25 停電負荷 Reference Signs List 1 system power supply 3 switch 5 AC / DC bidirectional converter 7 solar cell 9 diode 11 first electromagnetic contactor 13 first storage battery 15 second electromagnetic contactor 17 voltage regulator 19 third electromagnetic contactor 21 second Battery 23 uninterruptible load 25 blackout load

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】交流直流双方向コンバータの交流側が系統
電源と負荷とに接続され、交流直流双方向コンバータの
直流側に太陽電池と、第１の蓄電池とが並列に接続され
てなる系統連係電源システムであって、 交流直流双方向コンバータの直流側に、太陽電池と、第
１の蓄電池とに並列に電気自動車に搭載された自動車用
蓄電池が接続可能とされていることを特徴とする系統連
係電源システム。An AC-DC bidirectional converter has an AC side connected to a system power supply and a load, and a DC-connected bidirectional converter has a DC side connected with a solar cell and a first storage battery connected in parallel. A system connection, characterized in that a solar battery and a vehicle storage battery mounted on an electric vehicle can be connected in parallel with the first storage battery on the DC side of the AC / DC bidirectional converter. Power system.
JP35269392A 1992-12-09 1992-12-09 Grid-connected power system Expired - Fee Related JP3147257B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35269392A JP3147257B2 (en) 1992-12-09 1992-12-09 Grid-connected power system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35269392A JP3147257B2 (en) 1992-12-09 1992-12-09 Grid-connected power system

Publications (2)

Publication Number Publication Date
JPH06178461A JPH06178461A (en) 1994-06-24
JP3147257B2 true JP3147257B2 (en) 2001-03-19

Family

ID=18425792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35269392A Expired - Fee Related JP3147257B2 (en) 1992-12-09 1992-12-09 Grid-connected power system

Country Status (1)

Country Link
JP (1) JP3147257B2 (en)

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