Work

Analysis and Compensation of Sampling Errors in TPFS IPMSM Drives With Single Current Sensor

Year: 2018

Type: article

Abstract: The current reconstruction strategies using single current sensor in the motor drives are widely researched. However, the sampled currents do not represent the average values within the modulation period, especially for the asymmetric modulation or asymmetric sampling solutions. This is due to the following two reasons: 1) The detected current values obtained at different sampling points are utilized to calculate the three-phase currents; and 2) the detected instantaneous currents are applied to estimate the average current values. In this letter, the current change rates under different action vectors are estimated to compensate these errors in a three-phase four-switch interior permanent magnet synchronous motor (IPMSM) drive with single current sensor. The effectiveness of the proposed strategy is verified by experimental results on a 5-kW IPMSM motor prototype, which shows that the current reconstruction errors are reduced after compensation.

Source: IEEE Transactions on Industrial Electronics

DOI: 10.1109/tie.2018.2838114

Authors: Jiadong Lu, Yihua Hu, Jinglin Liu

Institutions: Northwestern Polytechnical University, University of Liverpool

Language: English

Topic: Sensorless Control of Electric Motors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Shaanxi Science and Technology Co-ordination and Innovation Project of China

OpenAlex ID: W2805541714