Enhanced Position Observer with a Selective Harmonic Error Eliminator and an Error Feed-forward Compensator for Sensor-less Surface-Mounted Permanent Magnet Synchronous Motor Drives

Affiliation of Author(s):自动化学院

Journal:2017 IEEE 3RD INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE AND ECCE ASIA (IFEEC 2017-ECCE ASIA)

Key Words:HF pulsating voltage injection inverter nonlinearities motor parameter asymmetries second-order generalized integrator

Abstract:In high-frequency (HF) pulsating voltage injectionbased sensor-less surface-mounted permanent magnet synchronous motor (SPMSM) control, inverter nonlinearities and motor parameter asymmetries lead to harmonic errors in the estimated position. To eliminate these errors, the second-order generalized integrator (SOGI) is applied. An enhanced position observer with a selective harmonic error eliminator (SHEE) consisting of several SOGIs and an error feed-forward compensator (EFC) are proposed. The harmonic errors in the estimated position are effectively removed. The proposed strategy is verified by experimental results at a 1.5-kW SPMSM sensorless drive.

Translation or Not:no

Date of Publication:2017-01-01

Co-author:刘兵,倪天恒

Correspondence Author:Bo Zhou

Date of Publication:2017-01-01