Method of starting static scherbius device
专利汇可以提供Method of starting static scherbius device专利检索，专利查询，专利分析的服务。并且PURPOSE:To make a starting resistor and a switch unnecessary by a method wherein a diode used as a forward converter is replaced with a thyristor and at the same time a phase is controlled by a phase controller in response to the actual value of the speed of an induction motor. CONSTITUTION:When a power supply side switch is closed, an induction motor 30 is energized and started. Upon receiving of an output signal from a speed detector 42, a phase controller 46 applies to forward converter 34 a firing pulse that makes the control lag angle alpha of a forward converter 34 large when the rotational speed of the induction motor 30 is low, and a firing pulse that makes the control lag angle small when the rotational speed rises. The output of the forward converter 34 is regenerated in the power supply via a DC reactor 36, a reverse converter 38, which is controlled by a speed control unit 44, and an inverter transformer 40. When the rotational speed of the induction motor 30 enters the Scherbius region, a firing pulse that makes the control lag angle alpha zero is fed from the phase controller 46 to the forward converter 34.，下面是Method of starting static scherbius device专利的具体信息内容。
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