Apparatus and method for controlling motor

摘要

An apparatus and a method for controlling a motor are provided. The apparatus for controlling a motor includes a temperature sensor that is configured to detect a temperature of an inverter, and a variable amplifier that is configured to variably set an amplification gain that corresponds to the detected temperature of the inverter and amplify and output a resolver signal output from a resolver based on the variably set amplification gain, based on an excitation signal. A controller is then configured to estimate a position of a motor rotor based on the amplified resolver signal to calculate a flux angle and an excitation signal generator is configured to generate the excitation signal that corresponds to the calculated flux angle and output the generated excitation signal to the resolver.

主权项

1. An apparatus for controlling a motor, comprising:
a temperature sensor configured to detect a temperature of an inverter; a variable amplifier configured to variably set an amplification gain that corresponds to the detected temperature of the inverter and amplify and output a resolver signal output from a resolver based on the variably set amplification gain, based on an excitation signal; a controller configured to estimate a position of a motor rotor based on the amplified resolver signal to calculate a flux angle; and an excitation signal generator configured to generate the excitation signal that corresponds to the calculated flux angle and output the generated excitation signal to the resolver.