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Speed control apparatus for wound-rotor type induction motor

阅读:206发布:2021-12-03

专利汇可以提供Speed control apparatus for wound-rotor type induction motor专利检索,专利查询,专利分析的服务。并且PURPOSE:To decrease the rectifying capacity by providing two sets of rectifiers and controlling the speed by using one rectifier when the slip of the motor is less than a specified region and by using another rectifier when the slip is greater than the specified region. CONSTITUTION:The secondary power of the wound-rotor type induction motor 3 is fedback to the power source through a converter 5 comprising a contactor 42, a rectifier 51, and an inverter 53. A step-down transformer 71 which is connected in series with the secondary side of the motor 3 and the rectifier 72 are provided in parallel with the contactor 42 and the rectifier 51. Up to the specified slip, the secondary power is fedback to the power source via the stepdown transformer 71 and the rectifier 72, and the entire speed range of the wound-rotor type induction motor is controlled. In this constitution, the combined capacitance of the two rectifiers can be reduced lower than the capacity in the case the entire speed is controlled by only one rectifier.,下面是Speed control apparatus for wound-rotor type induction motor专利的具体信息内容。

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