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Method and apparatus for detecting inter-phase short-circuit of three-phase motor and air conditioner including the same
Method and apparatus for detecting inter-phase short-circuit of three-phase motor and air conditioner including the same
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机译:用于检测三相电动机的相间短路的方法和装置以及包括该装置的空调
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摘要
The present disclosure relates to inter-phase short-circuit detection, and particularly, to a method and apparatus for detecting inter-phase short-circuit of a three-phase motor, and an air conditioner including the same. The apparatus for detecting inter-phase short-circuit of a three-phase motor includes: a power supply for rectifying AC power to supply DC power; an inverter for generating three-phase current for driving the three-phase motor using the DC power, the inverter including a plurality of switching elements including high-side switching elements and low-side switching elements corresponding to three phases, and a current sensor commonly connected to the switching elements; a gate driver for driving the plurality of switching elements; and a controller for controlling the gate driver such that current flowing through the high-side switching elements and current flowing through the low-side switching elements partially short-circuit to sense a current flowing through the current sensor and determine inter-phase short-circuit.
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