Study on dual redundant PMSM drive design and fault-tolerant control strategy

ABSTRACT

With the development and application of servo system, the requirements of high performance servo system are getting higher and higher. Its key is the high-performance motor that has the fault-tolerance to improve the motor reliability. This paper proposes a novel dual redundant PMSM (Permanent magnet synchronous motor), which has multiple same armature winding. Each winding has same three phases and is controlled by inverter module. Based on the fault-tolerant control system model, a reliable fault-tolerant control strategy has been proposed. The experiment platform is built to carry out consistency experiment of each redundancy, response characteristic experiment and fault-tolerant experiment of two redundancies in the PMSM. The experiment result shows the dual redundant PMSM has a good response and fault-tolerance characteristics.

KEYWORDS:

• Dual redundant design
• fault-tolerant control strategy
• PMSM reliability design
• multiple three-phase winding

Acknowledgments

This word was supported in part by the China Postdoctoral Fund under project 2016M600256, Postdoctoral Fund in Heilongjiang Province under project LBH-Z16092, in part by Harbin Science and Technology Innovation Talent Research Special Fund Project under project 2017RAQXJ076.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Heilongjiang Youth Development Foundation [LBH-Z16092];Heilongjiang Province General Undergraduate Colleges and Universities Young Innovative Talents Training Plan [UNPYSCT-2018211]; Harbin Science and Technology Innovation Talent Research Special Fund Project under project [2017RAQXJ076]; National Office for Philosophy and Social Sciences (CN) [2016M600256].