三级式同步电机起动过程交直流励磁一体化控制

发布时间：2018-06-28 09:43

本文选题：三级式同步电机 + 绕组开放式结构　；参考：《电工技术学报》2015年10期

【摘要】：针对三级式同步电机起动过程中存在的主励磁机励磁问题,提出一种具有三相定子绕组开放式结构的主励磁机结构,结合双逆变器拓扑,构成一种新型交直流一体化励磁系统,详细分析了双逆变器的三相交流励磁、直流励磁控制方法,并由主励磁机工作特性推导出交流励磁频率的选择依据,研究交、直流励磁切换点选取原则及控制方法。仿真和实验结果表明,交、直流励磁一体化控制策略能够使主励磁机输出稳定的励磁功率,并可实现交、直流励磁平滑切换。
[Abstract]:Aiming at the excitation problem of main exciter in the starting process of three-stage synchronous motor, a new type of AC / DC integrated excitation system is proposed, which has an open structure of three-phase stator windings and combines the topology of double inverters. The three phase AC excitation and DC excitation control methods of double inverter are analyzed in detail. The selection basis of AC excitation frequency is deduced from the working characteristics of main exciter, and the selection principle and control method of AC and DC excitation switching point are studied. The simulation and experimental results show that the AC and DC excitation integrated control strategy can make the main exciter output stable excitation power and can realize the smooth switching of AC and DC excitation.
【作者单位】：南京航空航天大学自动化学院;
【基金】：航空预研基金资助项目(403050202)
【分类号】：TM341

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