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AC RIPPLE CURRENT SUPPRESS APPARATUS AND METHOD FOR SINGLE PHASE INVERTER
AC RIPPLE CURRENT SUPPRESS APPARATUS AND METHOD FOR SINGLE PHASE INVERTER
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机译:用于单相逆变器的交流纹波电流抑制装置和方法
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摘要
An apparatus and method to suppress a low speed ripple current to a motor include a power supply unit to supply single-phase alternating current (AC) power. A rectifying and smoothing unit rectifies and smoothes the single-phase AC power and outputs a direct current (DC) voltage indicative thereof. An inverter receives and converts the DC voltage to a motor driving current to drive the motor. A controller compares an envelope detected from a ripple current in the motor driving current and a DC component extracted from the ripple current and generates a compared result therefrom, and controls an output voltage from the inverter according to the compared result.
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