A Power-RPM Reduced-Order Model and Power Control Strategy of the Dual Three-Phase Permanent Magnet Synchronous Motor in a V/f Framework for Oscillation Suppression

Riqing Su, Yuanze Wang, Hui Deng, Xiong Liu () and Yuanpeng Guan ()
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Riqing Su: Energy Electricity Research Center, Jinan University, Zhuhai 519070, China
Yuanze Wang: Energy Electricity Research Center, Jinan University, Zhuhai 519070, China
Hui Deng: Energy Electricity Research Center, Jinan University, Zhuhai 519070, China
Xiong Liu: Energy Electricity Research Center, Jinan University, Zhuhai 519070, China
Yuanpeng Guan: School of Automation, Guangdong University of Technology, Guangzhou 510006, China

Energies, 2024, vol. 17, issue 18, 1-19

Abstract: The dual three-phase permanent magnet synchronous motor (DTP-PMSM) under a V/f control framework is widely applied in belts, fans, pumps, etc. However, the oscillation in power and rotor speed is difficult to quantify and suppress, due to the higher-order model of the DTP-PMSM. Thus, a power-revolutions per minute (RPM) reduced-order model and power control strategy of the DTP–PMSM are proposed for oscillation description and suppression. Firstly, according to the structure and V/f control framework, the reduced-order model is proposed under a power-RPM scale with coupled performances between sub-PMSMs, and then the decoupled method is employed. Moreover, the oscillated performances of power and rotor speed are detailed in small signals. Secondly, a power control strategy is proposed, including active power feedforward for active damping and reactive power droop control for high power quality and approaching optimal torque per ampere. Compared with the traditional strategies, the proposed method can achieve a stable and efficient operation, with a higher power factor of the DTP–PMSM, less stator current, and lower electromechanical power loss. Finally, an experimental platform of the DTP–PMSM is set up for the correctness and superiority of the proposed method.

Keywords: dual three-phase permanent magnet synchronous motor; power-rpm reduced-order model; active power feedforward; V/f framework; oscillation suppression; reactive power droop control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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