电工技术学报  2018, Vol. 33 Issue (8): 1732-1741    DOI: 10.19595/j.cnki.1000-6753.tces.170026
电机电器 |
低开关频率下双三相感应电机矢量控制策略
王琛琛, 王堃, 游小杰, 周明磊
北京交通大学电气工程学院 北京 100044
Vector Control Strategy for Dual Three-Phase Induction Machines under Low Switching Frequency
Wang Chenchen, Wang Kun, You Xiaojie, Zhou Minglei
College of Electrical Engineering Beijing Jiaotong University Beijing 100044 China
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摘要 双三相感应电机以其自身特有的优点,特别适用于轨道交通等低压、大功率、可靠性要求高的应用场合。在大功率牵引传动系统中,因开关损耗和散热条件等限制,逆变器的最高开关频率通常不超过1kHz。根据多模式调制的特点,提出低开关频率条件下双三相感应电机矢量控制策略,主要包括磁链观测、基波(αβ)平面电流调节器、谐波(xy)平面电流调节器、相位调节器以及磁场定向校正策略。此外,针对方波工况下电压幅值无法调节问题,提出方波工况下的改进型矢量控制策略。通过仿真系统和小功率实验平台,验证了所提出的低开关频率下矢量控制策略的正确性和可行性。
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关键词 双三相感应电机矢量控制低开关频率同步调制方波    
Abstract:Because of some inherent advantages, the dual three-phase induction machine is suitable for railway transportation and other low-voltage, high-power and high-reliability occasions. Due to switching losses and cooling conditions, the maximum switching frequency of the inverter in high-power traction drive systems is usually not more than 1kHz. According to the characteristics of the multi-mode modulation technique, the vector control strategy under low switching frequency for the dual three-phase induction machine is proposed in this paper. It includes the flux observer, the currents regulators in (αβ) subspace and (xy) subspace, the phase-angle regulator, and the correction strategy of the flux orientation. Besides, in the view of the problem that the voltage amplitude cannot be adjusted under the condition of square waves, a modified vector control strategy is presented. Simulation of a software simulation system and experimental results from a prototype machine verify the proposed vector control strategy under low switching frequency.
Key wordsDual three-phase induction machine    vector control    low switching frequency    synchronous modulation    square wave   
收稿日期: 2017-01-12      出版日期: 2018-04-24
PACS: TM315  
基金资助:国家自然科学基金(51507009)和中央高校基本科研业务费专项资金(E15RC00030)资助项目
通讯作者: 王堃 男,1989年生,博士研究生,研究方向为电力电子与电力传动。E-mail: 12117371@bjtu.edu.cn   
作者简介: 王琛琛 男,1981年生,副教授,博士生导师,研究方向为电力电子与电力传动。E-mail: chchwang@bjtu.edu.cn
引用本文:   
王琛琛, 王堃, 游小杰, 周明磊. 低开关频率下双三相感应电机矢量控制策略[J]. 电工技术学报, 2018, 33(8): 1732-1741. Wang Chenchen, Wang Kun, You Xiaojie, Zhou Minglei. Vector Control Strategy for Dual Three-Phase Induction Machines under Low Switching Frequency. Transactions of China Electrotechnical Society, 2018, 33(8): 1732-1741.
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