A Torque-Injection-Based Method for Stator Temperature Estimation of Direct-Torque-Controlled Permanent Magnet Synchronous Motors

被引：0

作者：

Hang, Jun ^{[1
]}

Zhang, Ye ^{[2
]}

Ding, Shichuan ^{[1
]}

Huang, Yourui ^{[2
]}

Wang, Qunjing ^{[3
]}

机构：

[1] Anhui Univ, Sch Elect Engn & Automat, Hefei, Anhui, Peoples R China

[2] Anhui Univ Sci & Technol, Sch Elect & Informat Engn, Hefei, Anhui, Peoples R China

[3] Anhui Univ, Collaborat Innovat Ctr Ind Energy Saving & Power, Hefei, Anhui, Peoples R China

来源：

2017 20TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2017年

基金：

中国国家自然科学基金;

关键词：

Permanent magnet synchronous motor; direct torque control; signal injection; stator resistance estimation; temperature estimation; RESISTANCE ESTIMATION; INDUCTION MACHINES;

D O I：

暂无

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：

This paper proposes a method to estimate the stator winding temperature of permanent magnet synchronous motor (PMSM) driven by direct torque control (DTC) strategy, where the stator resistance is used as a direct indicator of the temperature. In this method, the quantitative relationship between the dc current offset and the corresponding changes in torque is derived. The dc current offset is generated by injecting the toque signal into the torque control loop of the DTC system of the PMSM to calculate the stator resistance. The stator winding temperature is estimated by the relationship between the stator resistance and the stator winding temperature. The simulation results validate the effectiveness of the proposed method. In addition, the proposed method requires no extra experimental equipment and has little effect on the normal operation of the PMSM.

引用

页数：5

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