To provide a rotary electric machine drive device capable of controlling an input/output voltage to a battery unit not to a partial discharge start voltage of a rotary electric machine or higher without using a DC/DC converter.SOLUTION: A rotary electric machine drive device 10 comprises a rotary electric machine 20, a battery unit 30, an environmental information acquisition part 50, and a control device 60. The battery unit 30 has a first battery pack 31, a secondary battery pack 32 having battery modules 321, 322, a first switching part 71 which switches a connection between the first battery pack 31 and the second battery pack 32 between a series and a parallel state, and a second switching part 72 which switches a connection between the battery modules 321, 322 between a series and a parallel state. The control device 60 calculates a partial discharge start voltage estimated value Vs of the rotary electric machine 20 based upon environmental information on a circumference, and controls the first switching part 71 and the second switching part 72 based upon the partial discharge start voltage estimated value Vs.SELECTED DRAWING: Figure 1
【課題】DC/DCコンバータを用いることなく、バッテリユニットの入出力電圧が回転電機の部分放電開始電圧以上とならないように制御できる回転電機駆動装置を提供する。【解決手段】回転電機駆動装置10は、回転電機20と、バッテリユニット30と、環境情報取得部50と、制御装置60と、を備える。バッテリユニット30は、第1バッテリパック31と、バッテリモジュール321、322を有する第2バッテリパック32と、第1バッテリパック31と第2バッテリパック32との接続を直列/並列とで切替える第1切替部71と、バッテリモジュール321、322間の接続を直列/並列とで切替える第2切替部72と、を有する。制御装置60は、周辺の環境情報に基づいて回転電機20の部分放電開始電圧推定値Vsを算出し、部分放電開始電圧推定値Vsに基づいて第1切替部71及び第2切替部72を制御する。【選択図】図1
ROTARY ELECTRIC MACHINE DRIVE DEVICE
回転電機駆動装置
2021-05-20
Patent
Electronic Resource
Japanese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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