Motor drive control device

A motor drive control device (10) includes a first current detection unit (105) provided between an intermediate potential terminal and a semiconductor switch group. The control circuit (104) restores phase current information of the three-phase motor (103) on the basis of current values detected by...

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Bibliographische Detailangaben
Hauptverfasser:	DOYAMA YOSHIAKI, MIYAZAKI HARUYUKI, KYOGOKU AKIHIRO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A motor drive control device (10) includes a first current detection unit (105) provided between an intermediate potential terminal and a semiconductor switch group. The control circuit (104) restores phase current information of the three-phase motor (103) on the basis of current values detected by the first current detection unit (105) during periods in which combinations of phases in which the intermediate potential end-side semiconductor switch (113u) is in an on state differ from each other in one cycle of the carrier signal. 电动机驱动控制装置(10)包括设置在中间电位端和半导体开关组之间的第一电流检测部(105)。控制电路(104)基于在载波信号的一个周期内的中间电位端侧半导体开关(113u)为导通状态的相的组合彼此不同的期间第一电流检测部(105)分别检测出的电流值，还原三相电动机(103)的相电流信息。