大功率宽调速范围双凸极电机驱动拓扑的对比研究  

Comparative Study Between the Driving Topologies of Doubly Salient Machine for High Power Capacity and Wide Speed Range Situations

作　　者：倪志拓 陈志辉[1] 朱杰[1] 王波[1] 谢淑玲[1] 

机构地区：[1]南京航空航天大学航空电源航空科技重点实验室,江苏南京210016

出　　处：《电气传动》2015年第4期13-18,共6页Electric Drive

摘　　要：电励磁双凸极电机具有结构简单,可靠性高,控制灵活等优点,成为一种应用前景良好的电机。以12/8极电励磁双凸极电机为研究对象,提出了一种优化的适用于大功率、宽调速范围场合的驱动拓扑,即在传统的逆变器前级放置Buck变换器,并设计出新型拓扑相对应的控制策略。详细对比了两种驱动拓扑下,开关管的开关频率和电机的铁耗。通过仿真和实验,结果验证了,前置Buck新型双凸极电机驱动拓扑不仅降低了开关管的斩波频率,而且减小了电机的铁耗,相对比于传统直接桥式驱动方式,前置Buck新型拓扑更适用于大功率、宽调范围的场合。With the prominent advantages of simple structure, high reliability, flexible regulation, the woundfield doubly salient machine （WFDSM） has the potential to be a good candidate for future machine application. Based on the 12/8 pole WFDSM, an optimized driving topology that places a Buck converter in front of the conventional inverter was put forward for high power capacity and wide speed range situation. And the corresponding control strategy of the novel topology was designed. The swiching frequency of the swichers and core loss of the machine were compared in detail between the two driving topologies. Through simulations and experiments, the results show that the noval driving topology for doubly salient machine with preposed Buck converter is a more suitable method for the high power capacity and wide speed range situations with not only lower switching frequency of the swichers but smaller core loss of the machine as well when compared to the traditional direct bridge driving method.

关 键 词：电励磁双凸极电机 调速系统 驱动系统拓扑 BUCK变换器 开关频率 铁耗 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]