JP6851504B2 - 電気車制御装置 - Google Patents
電気車制御装置 Download PDFInfo
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- B60L2220/00—Electrical machine types; Structures or applications thereof
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- B60L2240/00—Control parameters of input or output; Target parameters
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- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
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- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/529—Current
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Description
図1は、実施の形態1に係る電気車制御装置を含む電気車駆動システム80の構成図である。図1は、直流電気車への適用例である。図1に示すように、実施の形態1に係る電気車駆動システム80は、入力回路3と、第1の駆動群50と、第2の駆動群52とを有する。第1の駆動群50は第1の駆動制御系を構成し、第2の駆動群52は第2の駆動制御系を構成する。第1の駆動群50及び第2の駆動群52は、電気車の走行を制御する。
図6は、実施の形態2に係る制御装置4Aの詳細構成を示すブロック図である。実施の形態2に係る制御装置4Aは、電圧制御部30Aと、カップリング外れ検出部40Aとを備える。
図8は、実施の形態3に係る制御装置4Bの詳細構成を示すブロック図である。実施の形態3に係る制御装置4Bは、電圧制御部30Bと、カップリング外れ検出部40Bとを備える。
Claims (6)
- 複数台の誘導モータと、複数台の前記誘導モータを駆動する1つのインバータと、各々の前記誘導モータに流れるモータ電流の合計であるトータル電流を検出する電流検出器と、トルク指令値に基づいて算出した電流指令値、検出された前記トータル電流に基づいて算出した電圧指令値、並びに、算出した前記電圧指令値及び検出した前記トータル電流に基づいて算出した速度推定値に基づいて前記インバータを制御する制御装置と、を有する駆動制御系を備え、前記駆動制御系によって電気車を走行制御する電気車制御装置であって、
前記制御装置は、
前記トータル電流と前記電圧指令値とに基づいてトルク推定値を算出し、算出した前記トルク推定値と前記トルク指令値との偏差の絶対値に基づいて、前記誘導モータと前記電気車の駆動機構との間に設けられたカップリングの外れを検出するカップリング外れ検出部を備えたことを特徴とする電気車制御装置。 - 前記カップリング外れ検出部は、
前記トルク推定値を推定する推定部と、
前記偏差の絶対値を演算する演算部と、
前記偏差の絶対値と基準値とを比較し、前記偏差の絶対値が前記基準値よりも大きいときにカップリング外れが生じていると判定する判定部と、
を備えたことを特徴とする請求項1に記載の電気車制御装置。 - 複数台の誘導モータと、複数台の前記誘導モータを駆動する1つのインバータと、各々の前記誘導モータに流れるモータ電流の合計であるトータル電流を検出する電流検出器と、トルク指令値及び検出された前記トータル電流に基づいて算出した電圧指令値、並びに、算出した前記電圧指令値及び検出した前記トータル電流に基づいて算出した速度推定値に基づいて前記インバータを制御する制御装置と、を有する駆動制御系を備え、前記駆動制御系によって電気車を走行制御する電気車制御装置であって、
前記制御装置は、
前記電気車の走行速度を用いて算出した前記誘導モータの回転速度と前記速度推定値との偏差の絶対値に基づいて、前記誘導モータと前記電気車の駆動機構との間に設けられたカップリングの外れを検出するカップリング外れ検出部を備えたことを特徴とする電気車制御装置。 - 前記カップリング外れ検出部は、
前記電気車の走行速度を前記誘導モータの前記回転速度に換算する換算部と、
前記偏差の絶対値を演算する演算部と、
前記偏差の絶対値と基準値とを比較し、前記偏差の絶対値が前記基準値よりも大きいときにカップリング外れが生じていると判定する判定部と、
を備えたことを特徴とする請求項3に記載の電気車制御装置。 - 複数台の誘導モータと、複数台の前記誘導モータを駆動する1つのインバータと、各々が前記誘導モータに流れる個々のモータ電流を検出する複数の電流検出器と、トルク指令値に基づいて算出した電流指令値、検出された個々の前記モータ電流の加算値に基づいて算出した電圧指令値、並びに、算出した前記電圧指令値及び前記モータ電流の加算値に基づいて算出した速度推定値に基づいて前記インバータを制御する制御装置と、を有する駆動制御系を備え、前記駆動制御系によって電気車を走行制御する電気車制御装置であって、
前記制御装置は、
各々の誘導モータに流れる個々の前記モータ電流の検出値に基づいて算出されるq軸電流と前記電流指令値のうちのq軸電流指令値との偏差の絶対値に基づいて、各々の前記誘導モータと前記電気車の駆動機構との間に設けられたカップリングの外れを検出するカップリング外れ検出部を備えたことを特徴とする電気車制御装置。 - 前記カップリング外れ検出部は、
前記q軸電流指令値を前記誘導モータの1台当たりのq軸電流指令値に換算する換算部と、
各々の前記誘導モータにおける前記偏差の絶対値を演算する演算部と、
前記偏差の絶対値と基準値とを比較し、前記偏差の絶対値が前記基準値よりも大きいときにカップリング外れが生じていると判定する判定部と、
を備えたことを特徴とする請求項5に記載の電気車制御装置。
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