复矢量电流调节器在牵引永磁同步电机中的应用

详细信息    查看全文 | 推荐本文 |

英文篇名：Application of Complex Vector Current Regulator in Traction Permanent Magnet Synchronous Motor 作者：田庆 ; 侯晓军 ; 张彩霞 ; 赵安定 英文作者：TIAN Qing;HOU Xiaojun;ZHANG Caixia;ZHAO ANDing;Technology Center, CRRC Qingdao Sifang Co., Ltd.;Technology Center, Xi'an CRRC YongeJieTong Electric Co., Ltd.; 关键词：牵引电传动系统 ; 永磁同步电机 ; 复矢量 ; 电流调节器 ; 最少拍系统 英文关键词：traction electric drive system;;permanent magnet synchronous motor;;complex vector;;current regulator;;least shoot system 中文刊名：JCDC 英文刊名：Electric Drive for Locomotives 机构：中车青岛四方机车车辆股份有限公司技术中心;西安中车永电捷通电气有限公司技术中心; 出版日期：2018-09-10 出版单位：机车电传动 年：2018 期：No.264 语种：中文; 页：JCDC201805011 页数：4 CN：05 ISSN：43-1125/U 分类号：44-47

摘要

在牵引电传动系统中,由于高电压、大电流的特点,同时受到开关损耗和散热等条件限制,逆变器的最高开关频率通常较低,只有几百赫兹。在这种情况下,永磁同步电机控制系统中的电流控制性能较差。为此,在复矢量法分析的基础上建立了包含延时影响的离散数学模型(脉冲传递函数),并采用最少拍系统设计方法确定电流调节器,针对数学模型在低速启动时不准确的问题,提出了补偿方案。通过仿真和现场试验结果证明,采用所提电流调节器在低速大电流启动和高速运行时,反馈电流都能很好跟随给定电流,电磁转矩也能完全跟随给定转矩;并且在加、减挡位时,电流和电压具有较好的稳态性能和动态性能。
        In the traction electric drive system, due to the characteristics of high voltage and high current, as well as the conditions of switching loss and heat dissipation, the maximum switching frequency of the inverter is usually low, which is only a few hundred Hz. In this case, the current control performance of the permanent magnet synchronous motor control system is poor. For this reason, a discrete mathematical model(impulse transfer function) including the influence of delay was established based on complex vector analysis, and the current regulator was determined by the least-shot system design method. Finally, according to the problem of mathematical model was not accurate at low speed, the compensation plan was put forward. The simulation and field test results showed that the feedback current could follow the given current well and the electromagnetic torque could exactly follow the given torque when using the current controller at big current start and high speed operation conditions. Moreover, the current and voltage have better steady-state and dynamic performance when the gears are added or shifted.

引文

[1]沈滢,郝荣泰.异步牵引电机磁场定向控制解耦算法的研究[J].铁道学报,2003, 25(1):26-29.
    [2]LEE DC, SUI S K, PARK M H, et al. High performance current regulator for a field-oriented controlled induction motor drive[J].Industry ApplicationsIEEETransactionson,1994,30(5):1247-1257.
    [3]HOLTZ J, QUAN Juntao, PONTT J, et al. Design of fast and robust currentregulatorsforhigh-powerdrivesbasedoncomplexstate variables[J]. IEEE Transactions on Industry Applications, 2004,40(5):1388-1397.
    [4]ROWAN T M, KERKMAN R J. A new synchronous current regulator and an analysis of current-regulated PWM inverters[J].IEEETransactionsonIndustry Applications,1986,22(4):678-690.
    [5]韦克康,周明磊,郑琼林,等.基于复矢量的异步电机电流环数字控制[J].电工技术学报,2011,26(6):88-93.
    [6]齐丽英,王琛琛,周明磊,等.一种异步电机的电流环解耦控制方法[J].电工技术学报,2014,29(5):174-180.
    [7]戴鹏,符晓,袁庆庆,等.基于复矢量调节器的低开关频率PWM整流器研究[J].中国电机工程学报,2011,31(21):25-31.
    [8]伍小杰,袁庆庆,符晓.基于复矢量调节器的低开关频率同步电机控制[J].中国电机工程学报,2012,32(3):124-129.
    [9]胡寿松.自动控制原理[M].北京:科学出版社,2001.