JP6071912B2 - 過電圧保護装置および電流調整回路 - Google Patents
過電圧保護装置および電流調整回路 Download PDFInfo
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- JP6071912B2 JP6071912B2 JP2014012825A JP2014012825A JP6071912B2 JP 6071912 B2 JP6071912 B2 JP 6071912B2 JP 2014012825 A JP2014012825 A JP 2014012825A JP 2014012825 A JP2014012825 A JP 2014012825A JP 6071912 B2 JP6071912 B2 JP 6071912B2
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- 238000004804 winding Methods 0.000 claims description 65
- 230000006698 induction Effects 0.000 claims description 54
- 239000004065 semiconductor Substances 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000033228 biological regulation Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/005—Arrangements for controlling doubly fed motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/007—Control circuits for doubly fed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
- H02H9/002—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off limiting inrush current on switching on of inductive loads subjected to remanence, e.g. transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Protection Of Static Devices (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Eletrric Generators (AREA)
Description
第1の実施形態を、図1および図2を参照して説明する。
第2の実施形態を、図1及び図2とともに図3を参照して説明する。なお、第1の実施形態と共通する要素には同一の符号を付している。以下では、第1の実施形態と共通する部分の説明を省略し、異なる部分を中心に説明する。
Claims (15)
- 巻線形誘導機の二次側と前記巻線形誘導機の二次側を三相交流で励磁する周波数変換器との間に設けられ三相交流の相間を短絡させる機能を有する第一の短絡器を備えた過電圧保護装置において、
前記第一の短絡器と前記周波数変換器との間に相毎に接続される抵抗器と、当該抵抗器と並列に接続され前記周波数変換器と前記巻線形誘導機の二次側とを短絡させる機能を有する第二の短絡器とを更に備えたことを特徴とする過電圧保護装置。 - 事故発生に応じて、前記第一の短絡器を短絡させ、前記周波数変換器を停止させ、前記第二の短絡器の短絡を解除させ、事故除去後に、前記第一の短絡器に流れる電流が零になるように前記周波数変換器を再起動させ、前記第一の短絡器の短絡を解除させ、その一定時間後に前記第二の短絡器を短絡させる制御手段を更に具備することを特徴とする請求項1に記載の過電圧保護装置。
- 前記抵抗器の抵抗値は、前記周波数変換器の最大出力電圧を前記第一の短絡器の最大短絡電流で除算した値よりも小さい値であることを特徴とする請求項1又は2に記載の過電圧保護装置。
- 前記抵抗器の抵抗値は、前記周波数変換器の再起動により短絡電流が前記第一の短絡器から前記周波数変換器に転流される際のコンデンサ電圧が前記第一の短絡器の動作閾値を下回ることを保証する値であることを特徴とする請求項1乃至3のいずれか1項に記載の過電圧保護装置。
- 前記第二の短絡器は、機械式遮断器を用いて構成されることを特徴とする請求項1乃至4のいずれか1項に記載の過電圧保護装置。
- 前記第二の短絡器は、複数個の機械式遮断器を並列に接続して構成されることを特徴とする請求項1乃至4のいずれか1項に記載の過電圧保護装置。
- 前記第二の短絡器は、半導体遮断器を用いて構成されることを特徴とする請求項1乃至4のいずれか1項に記載の過電圧保護装置。
- 前記第二の短絡器は、複数個の半導体遮断器を並列に接続して構成されることを特徴とする請求項1乃至4のいずれか1項に記載の過電圧保護装置。
- 巻線形誘導機の二次側を三相交流で励磁する周波数変換器と、前記巻線形誘導機の二次側と前記周波数変換器との間に設けられ三相交流の相間を短絡させる機能を有する第一の短絡器とを備えた装置に適用される電流調整回路であって、
前記第一の短絡器と前記周波数変換器との間に相毎に接続される抵抗器と、前記抵抗器と並列に接続され前記周波数変換器と前記巻線形誘導機の二次側とを短絡させる機能を有する第二の短絡器とを備えたことを特徴とする電流調整回路。 - 前記抵抗器の抵抗値は、前記周波数変換器の最大出力電圧を前記第一の短絡器の最大短絡電流で除算した値よりも小さい値であることを特徴とする請求項9に記載の電流調整回路。
- 前記抵抗器の抵抗値は、前記周波数変換器の再起動により短絡電流が前記第一の短絡器から前記周波数変換器に転流される際のコンデンサ電圧が前記第一の短絡器の動作閾値を下回ることを保証する値であることを特徴とする請求項9又は10に記載の電流調整回路。
- 前記第二の短絡器は、機械式遮断器を用いて構成されることを特徴とする請求項9乃至11のいずれか1項に記載の電流調整回路。
- 前記第二の短絡器は、複数個の機械式遮断器を並列に接続して構成されることを特徴とする請求項9乃至11のいずれか1項に記載の電流調整回路。
- 前記第二の短絡器は、半導体遮断器を用いて構成されることを特徴とする請求項9乃至11のいずれか1項に記載の電流調整回路。
- 前記第二の短絡器は、複数個の半導体遮断器を並列に接続して構成されることを特徴とする請求項9乃至11のいずれか1項に記載の電流調整回路。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014012825A JP6071912B2 (ja) | 2014-01-27 | 2014-01-27 | 過電圧保護装置および電流調整回路 |
CN201510027084.2A CN104810799B (zh) | 2014-01-27 | 2015-01-20 | 过电压保护装置以及电流调整电路 |
EP15152466.7A EP2899824B1 (en) | 2014-01-27 | 2015-01-26 | Over-voltage prevention device and current rectifying circuit |
US14/605,424 US9548685B2 (en) | 2014-01-27 | 2015-01-26 | Over-voltage prevention device and current rectifying circuit |
Applications Claiming Priority (1)
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JP2014012825A JP6071912B2 (ja) | 2014-01-27 | 2014-01-27 | 過電圧保護装置および電流調整回路 |
Publications (2)
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JP2015142398A JP2015142398A (ja) | 2015-08-03 |
JP6071912B2 true JP6071912B2 (ja) | 2017-02-01 |
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Country Status (4)
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US (1) | US9548685B2 (ja) |
EP (1) | EP2899824B1 (ja) |
JP (1) | JP6071912B2 (ja) |
CN (1) | CN104810799B (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9698593B2 (en) * | 2012-11-20 | 2017-07-04 | Vestas Wind Systems A/S | Methods and systems for reducing the impact of a generator short circuit in a wind turbine |
US10193322B2 (en) | 2015-11-13 | 2019-01-29 | Silicon Power Corporation | Low-loss and fast acting solid-state breaker |
JP6640635B2 (ja) * | 2016-03-28 | 2020-02-05 | 株式会社東芝 | 可変速揚水発電システムの過電圧保護装置 |
JP6730113B2 (ja) * | 2016-07-05 | 2020-07-29 | 株式会社東芝 | 制御装置および可変速発電電動機始動方法 |
JP6346393B1 (ja) * | 2016-11-25 | 2018-06-20 | 株式会社東芝 | 可変速発電システムの過電圧保護装置 |
JP6725446B2 (ja) * | 2017-03-23 | 2020-07-15 | 株式会社東芝 | 巻線形誘導機の制御システム、および制御方法 |
JP6371021B1 (ja) * | 2017-03-24 | 2018-08-08 | 株式会社東芝 | 可変速揚水発電システムおよび可変速揚水発電方法 |
CN110663153B (zh) * | 2017-04-13 | 2023-02-10 | 福伊特专利有限公司 | 用于调节电网频率的水力发电设备和用于运行的方法 |
CN110277764B (zh) * | 2019-07-24 | 2022-04-08 | 阳光电源股份有限公司 | 一种电网过压保护电路和方法 |
JP6848041B2 (ja) * | 2019-12-24 | 2021-03-24 | 株式会社東芝 | 可変速揚水発電システムの過電圧保護装置 |
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JPH0654444A (ja) * | 1992-07-24 | 1994-02-25 | Toshiba Corp | 過電圧保護装置 |
JP2001251884A (ja) * | 2000-03-03 | 2001-09-14 | Hitachi Engineering & Services Co Ltd | 誘導電動機の運転制御装置 |
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CN102983587B (zh) * | 2011-09-07 | 2015-01-07 | 台达电子企业管理(上海)有限公司 | 具有超速保护的风力发电***及其操作方法 |
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2014
- 2014-01-27 JP JP2014012825A patent/JP6071912B2/ja active Active
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2015
- 2015-01-20 CN CN201510027084.2A patent/CN104810799B/zh active Active
- 2015-01-26 US US14/605,424 patent/US9548685B2/en active Active
- 2015-01-26 EP EP15152466.7A patent/EP2899824B1/en active Active
Also Published As
Publication number | Publication date |
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US9548685B2 (en) | 2017-01-17 |
CN104810799A (zh) | 2015-07-29 |
EP2899824A1 (en) | 2015-07-29 |
US20150214870A1 (en) | 2015-07-30 |
EP2899824B1 (en) | 2021-08-18 |
CN104810799B (zh) | 2018-03-13 |
JP2015142398A (ja) | 2015-08-03 |
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