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吴鑫,周扬忠.单逆变器供电双五相永磁同步电机串联型直接转矩控制研究[J].电源学报,2019,17(4):162-168
单逆变器供电双五相永磁同步电机串联型直接转矩控制研究
Study on Direct Torque Control of Two Five-phase Permanent Magnet Synchronous Motors Connected in Series with Single-inverter Power Supply
投稿时间:2017-07-08  修订日期:2018-12-29
DOI:10.13234/j.issn.2095-2805.2019.4.162
中文关键词:  五相永磁同步电动机(PMSM)  双电机串联  直接转矩控制(DTC)
英文关键词:five-phase permanent magnet synchronous motor (PMSM)  two motors connected in series  direct torque control (DTC)
基金项目:
作者单位E-mail
吴鑫 福州大学电气工程与自动化学院, 福州 350108 519408315@qq.com 
周扬忠 福州大学电气工程与自动化学院, 福州 350108  
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中文摘要:
      电机串联技术不仅能够节省逆变器以及控制设备的成本,而且还能节省逆变器所占用的空间。串联的电机可实现独立控制,其转速和转矩都是独立控制的,这在诸多领域中有着重要的实用意义。针对2台串联的五相永磁同步电机PMSM(permanent magnet synchronous motor)提出一种直接转矩控制DTC(direct torque control)策略。首先,建立了变换矩阵,分析推导了静止坐标系以及旋转坐标系下双五相PMSMs串联系统的数学模型;然后,对直接转矩控制进行研究,构建最佳开关矢量表,设计系统的控制框图;最后,在MATLAB下建立电机的模型以及串联系统的模型,对单逆变器供电双五相PMSMs串联系统进行稳态及动态的仿真与分析。
英文摘要:
      The motors-connected-in-series technology can not only save the cost of inverters and control equipment, but also save the space occupied by the inverters. The motors connected in series can be independently controlled; especially, their speeds and torques are independently controlled, which is of practical significance in many fields. In this paper, a direct torque control(DTC) strategy for two five-phase permanent magnet synchronous motors(PMSMs) co-nnected in series is proposed. First, a transformation matrix is established, and the mathematical model of the series system in static coordinate and rotating coordinate systems are analyzed and deduced. Then, DTC is studied, the table of optimum switching vectors is formulated, and the control block diagram of the system is designed. Finally, the models of motors and the series system are established in MATLAB, and the series system of two five-phase PMSMs with a single-inverter power supply in steady- and dynamic-state are simulated and analyzed.
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