Lg Electronics Inc.

Kyeongtae Kim

Jeongeon Oh

Donggeun Lee

Yonghwa Lee

Jungwook Park

Provided are a motor control device and a method for controlling a motor control device. Harmonics of an input current may be reduced by adjusting an output of an inverter.

Motor control device and method for controlling motor control device

The power conversion device may include a rectification unit, a boost converter for boosting power rectified from the rectification unit, a dc-end capacitor connected to an output end of the boost converter, an inductor current detection unit for detecting an inductor current flowing in an inductor within the boost converter, a dc-end voltage detection unit for detecting voltages of both ends of the dc-end capacitor, and a control unit for controlling the boost converter. The control unit may generate and output a converter switching control signal by performing proportional resonant control for a duty command value of a switching element within the boost converter, based on the detected inductor current and dc-end voltage. Therefore, a harmonic current component flowing through a dc-end capacitor induced by a ripple component of an input voltage may be reduced.

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Seoul, South Korea

Kyeongtae Kim