电机驱动系统平衡结构共模电压消除策略
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摘要
为了优化电机驱动系统电磁兼容性能,提出了一种电机驱动系统平衡结构共模电压消除策略,以减少或消除接地漏电流、轴承电流和共模电磁干扰。所提出的平衡结构拓扑将每相桥臂开关一分为二,可产生2个互补的平衡三相输出电压,进而消除系统中的共模电压。新方案的优势在于无需额外的滤波器组件、修改调制策略或增加设备额定容量。最后,基于电机驱动平台开展了相关试验,试验结果验证了新型策略能有效抑制共模电压。
In order to optimize the electromagnetic compatibility of motor drive system,a common mode voltage cancellation strategy of motor drive system based on balanced structure was proposed to reduce or eliminate earth leakage current,bearing current and common mode electromagnetic interference. The proposed balanced structure topology divided each phase of the bridge switch into two,which produced two complementary balanced three-phase output voltages,thereby eliminated the common-mode voltage in the system. The advantage of the new solution was that no additional filter components were needed,modified the modulation strategy,or increasd the device's rated capacity.Finally,based on the motor drive platform,the relevant test was carried out,the test results verify that the new strategy can effectively suppress the common mode voltage.
In order to optimize the electromagnetic compatibility of motor drive system,a common mode voltage cancellation strategy of motor drive system based on balanced structure was proposed to reduce or eliminate earth leakage current,bearing current and common mode electromagnetic interference. The proposed balanced structure topology divided each phase of the bridge switch into two,which produced two complementary balanced three-phase output voltages,thereby eliminated the common-mode voltage in the system. The advantage of the new solution was that no additional filter components were needed,modified the modulation strategy,or increasd the device's rated capacity.Finally,based on the motor drive platform,the relevant test was carried out,the test results verify that the new strategy can effectively suppress the common mode voltage.
引文
[1]周明磊,王琛琛,游小杰.基于交流电机定子磁链的CHMP?WM切换策略[J].中国电机工程学报,2016,36(14):3955-3963.
[2]孙旭霞,高沁源,孙伟.基于SVPWM的永磁同步电机直接转矩控制系统[J].电气传动,2016,46(11):3-6.
[3]周娟,魏琛,杨宇,等.逆变器简化PWM算法及抑制共模电压策略[J].电工技术学报,2014,29(8):158-165.
[4]肖芳,孙力,孙亚秀. PWM电机驱动系统中共模电压和轴电压的抑制[J].电机与控制学报,2009,13(3):402-407.
[5]刘瑞芳,桑秉谦,娄卓夫,等.静电屏蔽法抑制轴电流效能的分析[J].微特电机,2015,43(7):40-44.
[6]Ogasawara S,Ayano H,Akagi H. Measurement and Reduction of EMI Radiated by a PWM Inverter-fed AC Motor Drive Sys?tem[J]. IEEE Transactions on Industry Applications,1996,33(4):1019-1026.
[7]冯强,廖成,熊祥正.一种新的基于共模扼流圈传导干扰模态分离网络[J].现代电子技术,2014,37(15):76-78.
[8]王维,冷祥洪,胡庆军.变频电机轴电流产生因素分析及对策[J].电气传动,2017,47(6):77-80.
[9]张栋,孔亮,宁圃奇,等.一种基于转移函数的电机驱动系统共模EMI滤波器设计方法[J].电工技术学报,2016,31(1):103-111.
[10]姜保军. PWM电机驱动系统传导共模EMI抑制技术的研究现状[J].电气传动,2008,38(8):3-9.
[11]王晢,肖芳,张坪剑,等.交流驱动系统共模电压的无源/有源抑制技术[J].电力电子技术,2016,50(9):82-84.
[12]Zhu C,Hubing T H. An Active Cancellation Circuit for Reduc?ing Electrical Noise from Three-phase AC Motor Drivers[J].IEEE Transactions on Electromagnetic Compatibility,2014,56(1):60-66.
[13]佘阳阳,杨柏旺,吴志清,等.基于载波和空间矢量调制之间联系的多电平VSI降低和消除共模电压的PWM策略[J].电工技术学报,2015,30(4):171-178.
[14]郭小强,朱铁影,魏宝泽,等.飞跨电容多电平光伏逆变器共模电流抑制技术[J].中国电机工程学报,2016,36(18):4962-4969.
[15]Wang F. Motor Shaft Voltages and Bearing Currents and Their Reduction in Multilevel Medium-voltage PWM Voltage-sourceinverter Drive Applications[J]. IEEE Transactions on Industry Applications,2000,36(5):1336-1341.
[16]Morris C T,Han D,Sarlioglu B. Reduction of Common Mode Voltage and Conducted EMI Through Three-phase Inverter Topology[J]. IEEE Transactions on Power Electronics,2016,32(3):1720-1724.
[17]Baiju M R,Mohapatra K K,Kanchan R S,et al. A Dual Twolevel Inverter Scheme with Common Mode Voltage Elimination for an Induction Motor Drive[J]. IEEE Transactions on Power Electronics,2004,19(3):794-805.
[18]王雪松,赵争鸣,袁立强,等.应用于大容量变换器的IGBT并联技术[J].电工技术学报,2012,27(10):155-162.
[2]孙旭霞,高沁源,孙伟.基于SVPWM的永磁同步电机直接转矩控制系统[J].电气传动,2016,46(11):3-6.
[3]周娟,魏琛,杨宇,等.逆变器简化PWM算法及抑制共模电压策略[J].电工技术学报,2014,29(8):158-165.
[4]肖芳,孙力,孙亚秀. PWM电机驱动系统中共模电压和轴电压的抑制[J].电机与控制学报,2009,13(3):402-407.
[5]刘瑞芳,桑秉谦,娄卓夫,等.静电屏蔽法抑制轴电流效能的分析[J].微特电机,2015,43(7):40-44.
[6]Ogasawara S,Ayano H,Akagi H. Measurement and Reduction of EMI Radiated by a PWM Inverter-fed AC Motor Drive Sys?tem[J]. IEEE Transactions on Industry Applications,1996,33(4):1019-1026.
[7]冯强,廖成,熊祥正.一种新的基于共模扼流圈传导干扰模态分离网络[J].现代电子技术,2014,37(15):76-78.
[8]王维,冷祥洪,胡庆军.变频电机轴电流产生因素分析及对策[J].电气传动,2017,47(6):77-80.
[9]张栋,孔亮,宁圃奇,等.一种基于转移函数的电机驱动系统共模EMI滤波器设计方法[J].电工技术学报,2016,31(1):103-111.
[10]姜保军. PWM电机驱动系统传导共模EMI抑制技术的研究现状[J].电气传动,2008,38(8):3-9.
[11]王晢,肖芳,张坪剑,等.交流驱动系统共模电压的无源/有源抑制技术[J].电力电子技术,2016,50(9):82-84.
[12]Zhu C,Hubing T H. An Active Cancellation Circuit for Reduc?ing Electrical Noise from Three-phase AC Motor Drivers[J].IEEE Transactions on Electromagnetic Compatibility,2014,56(1):60-66.
[13]佘阳阳,杨柏旺,吴志清,等.基于载波和空间矢量调制之间联系的多电平VSI降低和消除共模电压的PWM策略[J].电工技术学报,2015,30(4):171-178.
[14]郭小强,朱铁影,魏宝泽,等.飞跨电容多电平光伏逆变器共模电流抑制技术[J].中国电机工程学报,2016,36(18):4962-4969.
[15]Wang F. Motor Shaft Voltages and Bearing Currents and Their Reduction in Multilevel Medium-voltage PWM Voltage-sourceinverter Drive Applications[J]. IEEE Transactions on Industry Applications,2000,36(5):1336-1341.
[16]Morris C T,Han D,Sarlioglu B. Reduction of Common Mode Voltage and Conducted EMI Through Three-phase Inverter Topology[J]. IEEE Transactions on Power Electronics,2016,32(3):1720-1724.
[17]Baiju M R,Mohapatra K K,Kanchan R S,et al. A Dual Twolevel Inverter Scheme with Common Mode Voltage Elimination for an Induction Motor Drive[J]. IEEE Transactions on Power Electronics,2004,19(3):794-805.
[18]王雪松,赵争鸣,袁立强,等.应用于大容量变换器的IGBT并联技术[J].电工技术学报,2012,27(10):155-162.