电励磁双凸极发电机励磁故障容错控制策略
|
摘要
在一些高可靠性场合中,发电机系统的可靠性技术研究非常关键,容错控制可以有效提高发电机系统的可靠性。电励磁双凸极发电机(doubly salient electro-magnetic generator,DSEG)是一种高可靠性的新型无刷直流发电机,针对这种电机一些故障类型的容错控制已有一些研究成果,但对其励磁故障容错控制却鲜见报道。介绍DSEG发电系统,并在此基础上分析了发电系统的励磁故障。分析发电系统在励磁故障下实现容错发电的基本原理与容错型功率变换器的选取原则。针对DSEG发电系统的励磁故障,提出一种基于四桥臂变换器的新型六拍容错发电控制方法,可以使DSEG在失去励磁绕组电流的情况下容错运行。构建容错发电系统实验平台并进行实验,验证了所提方法的可行性。
In the situations where high reliability is required, the research of reliability technology for generator systems is of great significance. Fault-tolerant control is one of the important approaches to improve system reliability. doubly salient electro-magnetic generator(DSEG) is a new type of brushless DC generators with high reliability, fault-tolerant control for some of its faults has been some research results,but the fault-tolerant control of excitation faults has not been studied. This paper introduced the DSEG power generation system and analyzed the excitation faults of the system. The basic principle of fault-tolerant operation of generator systems under excitation faults and the selection principle of fault-tolerant power converters were analyzed. A novel six-step fault-tolerant control method based on four-leg converters was proposed for excitation faults of DSEG systems, which can make the generator system run without excitation winding currents. An experimental platform of fault-tolerant generator systems is built and experiments are carried out to verify the feasibility of the proposed method.
In the situations where high reliability is required, the research of reliability technology for generator systems is of great significance. Fault-tolerant control is one of the important approaches to improve system reliability. doubly salient electro-magnetic generator(DSEG) is a new type of brushless DC generators with high reliability, fault-tolerant control for some of its faults has been some research results,but the fault-tolerant control of excitation faults has not been studied. This paper introduced the DSEG power generation system and analyzed the excitation faults of the system. The basic principle of fault-tolerant operation of generator systems under excitation faults and the selection principle of fault-tolerant power converters were analyzed. A novel six-step fault-tolerant control method based on four-leg converters was proposed for excitation faults of DSEG systems, which can make the generator system run without excitation winding currents. An experimental platform of fault-tolerant generator systems is built and experiments are carried out to verify the feasibility of the proposed method.
引文
[1]Yu L,Zhang Z,Chen Z,et al.Analysis and verificationof the doubly salient brushless DC generator for automobile auxiliary power unit application[J].IEEE Transactions on Industrial Electronic,2014,61(12):6655-6663.
[2]Wang Y,Zhang Z,Yu L,et al.Investigation of a variablespeed operating doubly salient brushless generator for automobile on-board generation application[J].IEEETransactions on Magnetics,2015,51(11):1-4.
[3]Zhang Z,Yan Y,Tao Y.A new topology of low speed doubly salient brushless DC generator for wind power generation[J].IEEE Transactions on Magnetics,2012,48(3):1227-1233.
[4]Zhang Z,Yu L,Sun L,et al.Iron loss analysis of doubly salient brushless DC generators[J].IEEE Transactions on Industrial Electronic,2015,62(4):2156-2163.
[5]Fan Y,Chau K T,Niu S.Development of a new brushless doubly fed doubly salient machine for wind power generation[J].IEEE Transactions on Magnetics,2006,42(10):3455-3457.
[6]吕飞,周波,魏佳丹.基于双绕组电励磁双凸极电机的双余度发电系统[J].中国电机工程学报,2007,27(6):21-25.Lyu F,Zhou B,Wei J D.Two redundancy generator system based on dual-winding doubly salient electro-magnetic motor[J].Proceedings of the CSEE,2007,27(6):21-25(in English).
[7]赵刚,周波.基于小波包分析的双凸极无刷直流发电机系统故障诊断[J].中国电机工程学报,2008,28(8):98-102.Zhao Gang,Zhou Bo.Fault diagnosis of doubly salient brushless DC generator system based on wavelet packet analysis[J].Proceedings of the CSEE,2008,28(8):98-102(in English).
[8]陈志辉,杨志浩,谢淑玲.电励磁双凸极电机并联桥短路故障的研究[J].电机与控制学报,2014,18(4):11-16.Cheng Zhihui,Yang Zhihao,Xie Shuling.Research on short-circuit faults of doubly salient electro-magnetic generator in parallel bridge mode[J].Electric Machines and Control,2014,18(4):11-16(in Chinese).
[9]Shi L,Zhou B.Analysis of a new five-phase fault-tolerant doubly salient brushless DC generator[J].IET Electric Power Applications,2016,10(7):633-640.
[10]赵耀,王慧贞,肖岚,等.五相容错电励磁双凸极电机容错特性分析[J].中国电机工程学报,2013,33(24):135-142.Zhao Yao,Wang Huizhen,Xiao Lan,etc.Characteristics analysis of five-phase fault-tolerant doubly salient electro-magnetic generators[J].Proceedings of the CSEE,2013,33(24):135-142(in Chinese)..
[11]赵耀,王慧贞,赵晓中,等.五相容错双凸极发电机单相短路故障分析[J].中国电机工程学报,2013,33(30):90-97.Zhao Yao,Wang Huizhen,Zhao Xiaozhong,etc.Analysis on single-phase short-circuit performances of five-phase fault-tolerant doubly salient electro-magnetic generators[J].Proceedings of the CSEE,2013,33(30):90-97(in Chinese).
[12]Yanling L,Baojun G E,Tao D,et al.Analysis on magnetic field of extra high voltage generators asynchronously operated under loss-of-field condition[J].Proceedings of the CSEE,2012,32(6):170-175.
[13]Casadei D,Filippetti F,Mengoni M,et al.Detection of magnet demagnetization in five-phase surface-mounted permanent magnet generators[C]//IEEE International Symposium on Power Electronics for Distributed Generation Systems.IEEE,2012:841-848.
[14]曹志彤,候秉鑫,琚立祥.凸极同步发电机失磁动特性的有限元仿真与动态参数的研究[J].中国电机工程学报,1989(5):48-55.Cao Zhitong,Hou Bingxin,Ju Lixiang.Finite element simulation of excitation-loss dynamic characteristics and study of dynamic parameters of synchronous generator[J].Proceedings of the CSEE,1989(5):48-55.
[15]李伟力,程鹏,吴振兴,等.并网永磁同步发电机转子永磁体局部失磁特征量的计算与分析[J].中国电机工程学报,2013,33(33):95-105.Li Weili,Cheng Peng,Wu Zhenxing,et al.Calculation and analysis on the permanent magnet partial demagnetization characteristics of the grid-connected permanent magnet synchronous generator rotor[J].Proceedings of the CSEE,2013,33(33):95-105(in Chinese).
[2]Wang Y,Zhang Z,Yu L,et al.Investigation of a variablespeed operating doubly salient brushless generator for automobile on-board generation application[J].IEEETransactions on Magnetics,2015,51(11):1-4.
[3]Zhang Z,Yan Y,Tao Y.A new topology of low speed doubly salient brushless DC generator for wind power generation[J].IEEE Transactions on Magnetics,2012,48(3):1227-1233.
[4]Zhang Z,Yu L,Sun L,et al.Iron loss analysis of doubly salient brushless DC generators[J].IEEE Transactions on Industrial Electronic,2015,62(4):2156-2163.
[5]Fan Y,Chau K T,Niu S.Development of a new brushless doubly fed doubly salient machine for wind power generation[J].IEEE Transactions on Magnetics,2006,42(10):3455-3457.
[6]吕飞,周波,魏佳丹.基于双绕组电励磁双凸极电机的双余度发电系统[J].中国电机工程学报,2007,27(6):21-25.Lyu F,Zhou B,Wei J D.Two redundancy generator system based on dual-winding doubly salient electro-magnetic motor[J].Proceedings of the CSEE,2007,27(6):21-25(in English).
[7]赵刚,周波.基于小波包分析的双凸极无刷直流发电机系统故障诊断[J].中国电机工程学报,2008,28(8):98-102.Zhao Gang,Zhou Bo.Fault diagnosis of doubly salient brushless DC generator system based on wavelet packet analysis[J].Proceedings of the CSEE,2008,28(8):98-102(in English).
[8]陈志辉,杨志浩,谢淑玲.电励磁双凸极电机并联桥短路故障的研究[J].电机与控制学报,2014,18(4):11-16.Cheng Zhihui,Yang Zhihao,Xie Shuling.Research on short-circuit faults of doubly salient electro-magnetic generator in parallel bridge mode[J].Electric Machines and Control,2014,18(4):11-16(in Chinese).
[9]Shi L,Zhou B.Analysis of a new five-phase fault-tolerant doubly salient brushless DC generator[J].IET Electric Power Applications,2016,10(7):633-640.
[10]赵耀,王慧贞,肖岚,等.五相容错电励磁双凸极电机容错特性分析[J].中国电机工程学报,2013,33(24):135-142.Zhao Yao,Wang Huizhen,Xiao Lan,etc.Characteristics analysis of five-phase fault-tolerant doubly salient electro-magnetic generators[J].Proceedings of the CSEE,2013,33(24):135-142(in Chinese)..
[11]赵耀,王慧贞,赵晓中,等.五相容错双凸极发电机单相短路故障分析[J].中国电机工程学报,2013,33(30):90-97.Zhao Yao,Wang Huizhen,Zhao Xiaozhong,etc.Analysis on single-phase short-circuit performances of five-phase fault-tolerant doubly salient electro-magnetic generators[J].Proceedings of the CSEE,2013,33(30):90-97(in Chinese).
[12]Yanling L,Baojun G E,Tao D,et al.Analysis on magnetic field of extra high voltage generators asynchronously operated under loss-of-field condition[J].Proceedings of the CSEE,2012,32(6):170-175.
[13]Casadei D,Filippetti F,Mengoni M,et al.Detection of magnet demagnetization in five-phase surface-mounted permanent magnet generators[C]//IEEE International Symposium on Power Electronics for Distributed Generation Systems.IEEE,2012:841-848.
[14]曹志彤,候秉鑫,琚立祥.凸极同步发电机失磁动特性的有限元仿真与动态参数的研究[J].中国电机工程学报,1989(5):48-55.Cao Zhitong,Hou Bingxin,Ju Lixiang.Finite element simulation of excitation-loss dynamic characteristics and study of dynamic parameters of synchronous generator[J].Proceedings of the CSEE,1989(5):48-55.
[15]李伟力,程鹏,吴振兴,等.并网永磁同步发电机转子永磁体局部失磁特征量的计算与分析[J].中国电机工程学报,2013,33(33):95-105.Li Weili,Cheng Peng,Wu Zhenxing,et al.Calculation and analysis on the permanent magnet partial demagnetization characteristics of the grid-connected permanent magnet synchronous generator rotor[J].Proceedings of the CSEE,2013,33(33):95-105(in Chinese).