零序电流励磁型电机驱动拓扑及控制技术研究现状与展望  

State-of-the-Art and Future Trends of Zero-Sequence Current Excited Machines:Drive Topology and Control Technologies

作　　者：阳辉 伊禹名 付方圆 Zhu Ziqiang 林鹤云[1] Yang Hui;Yi Yuming;Fu Fangyuan;Zhu Ziqiang;Lin Heyun(School of Electrical Engineering Southeast University,Nanjing 210096,China;School of Electronic and Electrical Engineering University of Sheffield Sheffield,S13JD,UK)

机构地区：[1]东南大学电气工程学院,南京210096 [2]谢菲尔德大学电子与电气工程学院,谢菲尔德S13JD

出　　处：《电工技术学报》2025年第2期398-414,共17页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(52037002,52077033)。

摘　　要：传统的定子变磁通同步电机需要设置额外的励磁绕组,并附加H桥电路以提供直流励磁,这会导致系统结构复杂、转矩密度较低。为此,一种新型的零序电流励磁型电机(ZSCEM)被提出,其将电枢和励磁绕组进行集成,并使用零序电流调节电机的气隙磁场,从而实现调速范围的提升。相比于励磁/电枢电流分别控制的定子变磁通同步电机,其电枢和励磁绕组合二为一,定子槽面积得到充分利用,相电阻接近减半,可有效提升效率和转矩密度。该文分别从驱动拓扑、励磁/电枢电流集成控制技术、驱动拓扑及其控制性能三个方面分析并总结了现有ZSCEM控制领域的研究现状。在现有研究工作基础上,提出了一种使用零序电流作为调磁脉冲以改变电机磁化状态的零序电流调磁型记忆电机(ZSCM-MM)。最后对ZSCEM的驱动拓扑及其控制技术的关键共性问题以及未来发展趋势进行了展望。A type of zero-sequence current excited machine(ZSCEM)has been proposed recently,in which the functions of excitation/armature winding are integrated.Correspondingly,the DC-biased sinusoidal current is injected into the integrated winding.The DC-biased component is used as an excitation source,and the sinusoidal component is used to drive the machine.The phase resistance and copper consumption are reduced while the overall efficiency is improved since the cross-sectional area of the winding is increased.At the same time,the excellent capability of magnetic field regulation is obtained by regulating the DC-biased component in the phase current.This paper overviews several key issues of the ZSCEM and prospects for its development directions.Firstly,the drive topologies of ZSCEM are summarized,which mainly consist of open-winding/dual three-phase drive topology with common DC bus,open-winding drive topology with common mode connected DC bus,nine-switch drive topology,series-end winding drive topology,and three-phase four-leg drive topology.Besides,since the DC-biased sinusoidal current is injected into ZSCEM,the amplitude of positive and negative currents is different.Therefore,a series of asymmetry drive topologies are proposed and presented to save costs and balance the heat pressure.Secondly,the modulation strategies for the above drive topologies are mainly summarized,including different space vector modulation(SVM)strategy and sinusoidal pulse width modulation(SPWM)schemes.Moreover,the basic voltage vector distribution and linear modulation region are carried out for each drive topology of ZSCEM.Therefore,it can be easily seen the zero-sequence modulation region from three-dimension space.Thirdly,the control methods,such as vector control,direct torque control,and fault-tolerant control,are presented.The introduction of zero-sequence current can add one degree of freedom to control technologies.Therefore,the zero-sequence current control loop should be added to the vector control strategy,and a new look-up tabl

关 键 词：驱动拓扑 混合励磁 电机控制 记忆电机 可变磁通 零序电流调磁 

分 类 号：TM301[电气工程—电机]