Improved Signal-Injection Sensorless Control Robust to Inverter Nonlinearity Effects by Prediction of Voltage Disturbance

被引：5

作者：

Lee, Yoon-Ro ^{[1
]}

Kwon, Yong-Cheol ^{[1
]}

Sul, Seung-Ki ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul, South Korea

来源：

2019 IEEE TRANSPORTATION ELECTRIFICATION CONFERENCE AND EXPO (ITEC) | 2019年

关键词：

Signal injection senseless drive; inverter nonlinearity; switching-instant current; voltage error calculation; iteration method; estimated position error compensation; INDUCTION;

D O I：

10.1109/itec.2019.8790628

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In signal-injection sensorless control, the estimated rotor position includes considerable error induced by the inverter nonlinearity effects. It would degrade overall performances of the sensorless drive, and it could even result in the failure of the position tracking. In this paper, an improved signal-injection sensorless control thanks to the compensation of the voltage error is proposed. The compensation depends on a precise calculation method of the voltage error induced by the inverter nonlinearity. The proposed method effectively reduces the voltage disturbance especially under the switching frequency injection for sensorless control. The performance of the proposed method is verified by computer simulations and experimental results.

引用

页数：5

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