Work

Sensorless Control of Interior Permanent Magnet Synchronous Motor with Triangular Transform Current Self-demodulation in the Estimating d-q Axis

Year: 2023

Type: article

Abstract: To address the issues of complex current demodulation, large rotor position estimation error, and position estimation error varying with speed in the high-frequency (HF) rotating voltage injection (HRVI) method for interior permanent magnet synchronous motor (IPMSM), a sensorless control of IPMSM with triangular transform (TT) current self-demodulation in the estimating d-q axis is proposed.Firstly, the HF currents estimated on the d and q axes are multiplied, and the resulting signal is constructed through TT to achieve phase shift compensation of positive and negative sequence HF currents.At the same time, a position error signal is constructed.Then, a low-pass filter is used to extract the position error signal and achieve self-demodulation of the current.The experimental results show that this method reduces the average position error by 15.0% under steady-state conditions and reduces the fluctuation range of position error by 17.6% under full load conditions.

Source: Progress In Electromagnetics Research B

DOI: 10.2528/pierb23070401

Authors: Dingdou Wen, Xincheng Zhu, Zhun Cheng, Yanqin Zhang, Wenting Zhang

Institutions: Hunan University of Technology, Hunan Railway Professional Technology College

Language: English

Topic: Sensorless Control of Electric Motors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4388314303

FWCI: 0.148

Cites: 21

Cited by: 2

Related to: 10