JP6177445B2 - 電気車制御装置 - Google Patents
電気車制御装置 Download PDFInfo
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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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a dc motor
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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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
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- B60L2240/00—Control parameters of input or output; Target parameters
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Description
図1は、実施の形態に係る電気車制御装置の一構成例を示す図である。実施の形態に係る電気車制御装置50は、図1に示すように、架線1からの直流電力を集電装置2および断流器3を介して受電し、受電した直流電力をインバータ11が交流電力に変換して負荷である電動機12を駆動する構成である。
第1のコンパレータ13a1では、電圧検出器9が検出したフィルタコンデンサ電圧FCVがB端子に入力され、A端子には、ブレーキチョッパ制御の開始電圧を意味する第1の過電圧判定値Va1が入力される。第1のコンパレータ13a1では、フィルタコンデンサ電圧FCVと第1の過電圧判定値Va1とが比較され、フィルタコンデンサ電圧FCVが第1の過電圧判定値Va1以上である場合に、ブレーキチョッパ制御指令BCHCを第1の通流率演算部13a2に出力する。
第2のコンパレータ13b1のB端子には、第1のコンパレータ13a1と同様に、フィルタコンデンサ電圧FCVが入力され、第2のコンパレータ13b1のA端子には、過電圧保護制御の開始電圧を意味する第2の過電圧判定値Va2が入力される。第2のコンパレータ13b1では、フィルタコンデンサ電圧FCVと第2の過電圧判定値Va2とが比較され、フィルタコンデンサ電圧FCVが第2の過電圧判定値Va2以上である場合に、過電圧保護指令VPCを第2の通流率演算部13b2に出力する。なお、第1の過電圧判定値Va1と第2の過電圧判定値Va2との間には、Va1<Va2の関係がある。よって、例えばフィルタコンデンサ電圧FCVが上昇する過程においては、過電圧保護指令VPCよりもブレーキチョッパ制御指令BCHCの方が先に生成される。
第1の通流率演算部13a2には、フィルタコンデンサ電圧FCVおよび第1のコンパレータ13a1が生成したブレーキチョッパ制御指令BCHCが入力される。第1の通流率演算部13a2は、ブレーキチョッパ制御指令BCHCが入力されている間、フィルタコンデンサ電圧FCVの大きさに応じた第1の通流率である通流率CUR1を演算して第1の駆動信号生成部13a3に出力する。なお、通流率とは、スイッチング素子7を制御する際のオンパルスおよびオフパルスの1周期の期間に占めるオン期間の比率を意味する。
第2の通流率演算部13b2には、第2のコンパレータ13b1が生成した過電圧保護指令VPCおよび断流器3からの断流器状態信号LBSが入力される。なお、ここでいう断流器状態信号LBSは、断流器3が閉路している場合に信号が出力されるものであるとして説明する。第2の通流率演算部13b2は、過電圧保護指令VPCが入力され、且つ、断流器状態信号LBSが入力されている間、第2の通流率である通流率CUR2を演算して第2の駆動信号生成部13b3に出力すると共に、断流器3を開放するための断流器開放指令LBRおよび、インバータ11の動作を停止するためのインバータ動作停止指令INVSを、それぞれ断流器3およびインバータ11に出力する。なお、第2の通流率演算部13b2が出力する通流率CUR2と第1の通流率演算部13a2が出力する通流率CUR1との間には、CUR2<CUR1の関係がある。
第1の駆動信号生成部13a3には、第1の通流率演算部13a2が演算した通流率CUR1が入力される。第1の駆動信号生成部13a3は、通流率CUR1に従って、ブレーキチョッパ回路8のスイッチング素子6を駆動するための制御パルスを生成する。
第2の駆動信号生成部13b3には、第2の通流率演算部13b2が演算した通流率CUR2が入力される。第2の駆動信号生成部13b3は、通流率CUR2に従って、ブレーキチョッパ回路8のスイッチング素子6を駆動するための制御パルスを生成する。
第1の駆動信号生成部13a3が生成した制御パルスおよび、第2の駆動信号生成部13b3が生成した制御パルスは、出力部13cに入力される。出力部13cが、双方の制御パルスが生成されている場合には、第2の駆動信号生成部13b3が生成した制御パルスが優先されるように処理し、処理した制御パルスをブレーキチョッパ動作指令BCXとしてブレーキチョッパ回路8に出力し、ブレーキチョッパ回路8のスイッチング素子6を制御する。
Claims (4)
- 断流器および直流母線を介して供給される電力を受電して電動機を駆動するインバータと、
スイッチング素子および前記スイッチング素子に直列接続される電力消費抵抗を具備し、前記インバータに並列接続される電力消費回路と、
前記直流母線に印加される母線電圧を検出する電圧検出器と、
前記電動機からの回生電力を前記電力消費抵抗で消費させる電力消費制御と、前記母線電圧の過電圧を抑制する過電圧抑制制御とを行う制御部と、
を備え、
前記制御部は、前記電力消費制御を行う際の第1の通流率よりも、前記過電圧抑制制御行う際の第2の通流率の方が小さくなるように前記スイッチング素子を制御する
ことを特徴とする電気車制御装置。 - 前記制御部には、前記電力消費制御を行う第1の制御系と、前記過電圧抑制制御を行う第2の制御系と、が構成され、
前記制御部は、前記母線電圧が第1の判定値以上のときに前記第1の制御系の動作を開始させ、
前記母線電圧が第1の判定値よりも大きな第2の判定値以上のときに前記第2の制御系の動作を開始させ、
前記第1の制御系と前記第2の制御系とを同時に動作させるときには、前記第2の制御系の動作を優先する
ことを特徴とする請求項1に記載の電気車制御装置。 - 前記第2の制御系には、前記断流器の開閉情報が入力され、
前記第2の制御系は、前記断流器の開情報を確認したときには前記第1の通流率よりも大きな第3の通流率を算出し、当該第3の通流率に従って前記スイッチング素子を制御する
ことを特徴とする請求項2に記載の電気車制御装置。 - 前記第3の通流率は、100%であることを特徴とする請求項3に記載の電気車制御装置。
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CN111463766A (zh) * | 2019-01-21 | 2020-07-28 | 广东美的制冷设备有限公司 | 供电保护电路板和空调器 |
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JPS6233689U (ja) * | 1985-08-08 | 1987-02-27 | ||
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JP2811817B2 (ja) | 1989-10-18 | 1998-10-15 | 三菱電機株式会社 | 電気車制御装置 |
JPH03159501A (ja) | 1989-11-15 | 1991-07-09 | Toshiba Corp | 電気車制御装置 |
JP2680186B2 (ja) * | 1990-11-28 | 1997-11-19 | 株式会社日立製作所 | 電気車制御装置 |
JP3232417B2 (ja) * | 1992-06-26 | 2001-11-26 | 株式会社日立製作所 | 電気車用インバータ制御装置 |
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JP2000358384A (ja) | 1999-06-14 | 2000-12-26 | Mitsubishi Electric Corp | 電力制御装置 |
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