Research of Power Down-Rejoining on Control System for Permanent Magnet Synchronous Motor Used in Traction Engines
Gao Ya1, Liu Weiguo2, Luo Guangzhao2
1. College of Electronic Information Engineering Xi’an Technological University Xi’an 710021 China; 2. College of Automation Northwestern Polytechnic University Xi’an 710129 China
Abstract：A closed-loop transient optimizing control system was investigated in this paper, to reduce the current and torque impacts of permanent magnet synchronous motor used in traction engines when passing split-phase insulator and rejoining on power with a high speed. Firstly, this paper analyzed the impact cause when power down-rejoining on based on transient mathematical model of PMSM, considering the influence factors of the harmonic part of PWM modulation and fundamental sine voltage. Accordingly, a special value was found for the power rejoining on given speed of the closed-loop control system. For the power rejoining on position, there was a real-time correction and compensation. The concept of analog inverter was introduced to reduce momentary mechanical shock caused by mechanical switch when power down-rejoining on. Lastly, this paper designed an optimization controller which had the functions of real-time monitoring, parameter correction and final decision. The experiments and simulations verified the designed rejoining on optimizing control system.
高雅, 刘卫国, 骆光照. 牵引机车用永磁同步电机断电-重投控制系统研究[J]. 电工技术学报, 2016, 31(6): 100-107.
Gao Ya, Liu Weiguo, Luo Guangzhao. Research of Power Down-Rejoining on Control System for Permanent Magnet Synchronous Motor Used in Traction Engines. Transactions of China Electrotechnical Society, 2016, 31(6): 100-107.
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2016, Vol. 31 
