Observability Analysis of Q-MRAS Drive of Induction Motor With and Without Virtual Voltage Injection

被引：0
|
作者：
Wang, Zhenyu [1 ]
Sun, Wei [1 ]
Jiang, Dong [1 ]
Qu, Ronghai [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Lab Adv Electromagnet Engn & Technol, Wuhan, Peoples R China
来源：
2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) | 2019年
关键词：
induction motor; zero current frequency; poor observability; Q-MRAS; virtual voltage injection; RESISTANCE ESTIMATION SCHEME; ROTOR RESISTANCE; FLUX OBSERVERS; STATOR; ZERO;
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：
Induction motor sensorless control drive is a hot topic in Industry and academia due to its low cost and reliability. However, the performance near or at zero current frequency is unsatisfying without extra excitation signals due to poor observability at zero current frequency. Here, for Q-MRAS method, authors propose new state equations. Based on these equations, authors analyze the observability and stability of IM drive with and without virtual voltage injection. Finally, based on virtual voltage injection, authors propose a new control scheme to solve the instability problem at zero current frequency.
引用
收藏
页码：1016 / 1021
页数：6
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