Invention Application
US20170077859A1 HYBRID DRIVE CIRCUIT FOR VARIABLE SPEED INDUCTION MOTOR SYSTEM AND METHODS OF CONTROL 审中-公开
用于变速驱动电机系统的混合驱动电路和控制方法

HYBRID DRIVE CIRCUIT FOR VARIABLE SPEED INDUCTION MOTOR SYSTEM AND METHODS OF CONTROL
Abstract:
Controllers for controlling hybrid motor drive circuits configured to drive a motor are provided herein. A controller is configured to drive the motor using an inverter when a motor commanded frequency is not within a predetermined range of line input power frequencies, and couple line input power to an output of the inverter using a first switch device when the motor commanded frequency is within the predetermined range of line input power frequencies.
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