MTPA Control of Sensorless IPMSM Based on Virtual Signal and High-Frequency Pulsating Signal Injection

被引：0
|
作者：
Zhao W. [1 ]
Liu H. [1 ]
Tao T. [1 ]
Qiu X. [1 ]
机构：
[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2021年 / 36卷 / 24期
关键词：
High-frequency pulsating signal injection; Interior permanent magnet synchronous motor; Maximum torque per ampere control; Sensorless control; Virtual signal injection;
D O I：
10.19595/j.cnki.1000-6753.tces.211039
中图分类号：
学科分类号：
摘要：
To reduce the copper loss of the traditional sensorless control system for interior permanent magnet synchronous motor (IPMSM) at low-speed region, a new method of virtual signal and high-frequency pulsating signal injection is proposed to realize the sensorless control and the maximum torque per ampere (MTPA) control simultaneously to improve the motor output torque capability and system efficiency. Different from the traditional MTPA control based on virtual signal injection, the proposed MTPA method injects a virtual constant signal into the estimated d-axis and q-axis currents, thereby avoiding the inference between the two control strategies. The proposed MTPA method does not cause additional copper loss and is parameter independent. Besides, since the injected signal in MTPA method is constant, the detection accuracy of rotor position will not be affected. The experiments verify the proposed method can realize the sensorless control and the MTPA control simultaneously and accurately under different load and speed conditions. © 2021, Electrical Technology Press Co. Ltd. All right reserved.
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页码：5092 / 5100
页数：8
相关论文
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