基于模糊自适应PID的开关磁阻电机滞环-脉宽调制直接瞬时转矩控制
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摘要
开关磁阻电机(SRM)具有转矩脉动较大的特点。提出一种结合滞环控制和脉宽调制(PWM)的直接瞬时转矩控制策略解决此类问题。分析了转矩在控制过程中出现大波动的机理,制订了单相区和换相区不同控制方法。考虑到转矩在不同条件下输出特性,将PWM等效策略引入滞环限间,优化了转矩控制效果。加入了模糊自适应PID控制器,提高系统响应性能。仿真结果表明该控制策略响应速度快,能有效地抑制SRM的转矩脉动。
Switched reluctance motor(SRM) had the characteristics of torque ripple. A direct instantaneous torque control strategy combining hysteresis control and pulse width modulation(PWM) was proposed. Based on the analyses on the mechanism of large fluctuations in torque during control process, different control methods were formulated for single-phase and commutation zones. Considering the output characteristics of torque under different conditions, the PWM equivalent strategy was introduced into the hysteresis limit interval to optimize the torque control effect. Fuzzy adaptive PID controller was added to improve the response performance of the system. The simulation results showed that the control strategy had a fast response and could suppress the torque ripple of the SRM effectively.
Switched reluctance motor(SRM) had the characteristics of torque ripple. A direct instantaneous torque control strategy combining hysteresis control and pulse width modulation(PWM) was proposed. Based on the analyses on the mechanism of large fluctuations in torque during control process, different control methods were formulated for single-phase and commutation zones. Considering the output characteristics of torque under different conditions, the PWM equivalent strategy was introduced into the hysteresis limit interval to optimize the torque control effect. Fuzzy adaptive PID controller was added to improve the response performance of the system. The simulation results showed that the control strategy had a fast response and could suppress the torque ripple of the SRM effectively.
引文
[1] 孙建忠,白凤仙.特种电机及其控制[M].北京:中国水利水电出版社,2005.
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[3] 王勉华,邢幸.开关磁阻电机直接转矩滑模变结构控制[J].电机与控制应用,2017,44(6): 35.
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[5] INDERKA R B,DONCKER R W D.Direct instantaneous torque control of switched reluctance drives[C]//IEEE 37th IAS Annual Meeting,2002: 1605.
[6] CHOI C,KIM S,KIM Y,et al.A new torque control method of a switched reluctance motor using a torque-sharing-function[J].IEEE Transactions on Magnetics,2002,38(5): 3288.
[7] 漆汉宏,张婷婷,李珍国,等.基于DITC的开关磁阻电机转矩脉动最小化研究[J].电工技术学报,2007,22(7): 136.
[8] BUJA G S,MENIS R,VALLA M I.Variable structure control of an SRM drive[J].IEEE Transactions on Industrial Electronics,1993,40(1): 56.
[9] 杨光,杨明发,石凯.基于转矩分配的开关磁阻电机转矩脉动抑制的研究[J].电工电能新技术,2017,36(12): 8.
[10] 杨彬,张广明,王德明,等.基于交叉补偿型转矩分配函数的开关磁阻电机转矩脉动抑制系统设计[J].电机与控制应用,2016,43(10): 46.
[11] 王喜莲,许振亮,王翠.开关磁阻电机转矩脉动与铜耗最小化控制研究[J].电机与控制学报,2015,19(7): 52.
[12] YE J,BILGIN B,EMADI A.An extended-speed low-ripple torque control of switched reluctance motor drives[J].IEEE Transactions on Power Electronics,2015,30(3): 1457.
[13] 李孟秋,杨茂骑,任修勇,等.基于BP神经网络的开关磁阻电机直接转矩控制系统及实现[J].电力系统及其自动化学报,2017,29(1): 52.
[14] 孙庆国,吴建华.基于转矩分配函数在线修正的开关磁阻电机转矩脉动抑制策略[J].电机与控制学报,2017,21(12): 1.
[15] 张崇娇,沈小林.基于电流追踪的开关磁阻电机转矩脉动抑制研究[J].微特电机,2018,46(1): 5.
[16] 朱叶盛,章国宝,黄永明.基于PWM的开关磁阻电机直接瞬时转矩控制[J].电工技术学报,2017,32(7): 31.
[17] 赵天宇,苏庆宇.基于变论域模糊控制的无刷直流电机转速问题[J].电机与控制应用,2017,44(11): 6.
[2] 王宏华.开关磁阻电机电动机调速控制技术[M].北京:机械工业出版社,2014.
[3] 王勉华,邢幸.开关磁阻电机直接转矩滑模变结构控制[J].电机与控制应用,2017,44(6): 35.
[4] CHEOK A D,FUKUDA Y.A new torque and flux control method for switched reluctance motor drives[J].IEEE Transactions on Power Electronics,2002,17(4): 543.
[5] INDERKA R B,DONCKER R W D.Direct instantaneous torque control of switched reluctance drives[C]//IEEE 37th IAS Annual Meeting,2002: 1605.
[6] CHOI C,KIM S,KIM Y,et al.A new torque control method of a switched reluctance motor using a torque-sharing-function[J].IEEE Transactions on Magnetics,2002,38(5): 3288.
[7] 漆汉宏,张婷婷,李珍国,等.基于DITC的开关磁阻电机转矩脉动最小化研究[J].电工技术学报,2007,22(7): 136.
[8] BUJA G S,MENIS R,VALLA M I.Variable structure control of an SRM drive[J].IEEE Transactions on Industrial Electronics,1993,40(1): 56.
[9] 杨光,杨明发,石凯.基于转矩分配的开关磁阻电机转矩脉动抑制的研究[J].电工电能新技术,2017,36(12): 8.
[10] 杨彬,张广明,王德明,等.基于交叉补偿型转矩分配函数的开关磁阻电机转矩脉动抑制系统设计[J].电机与控制应用,2016,43(10): 46.
[11] 王喜莲,许振亮,王翠.开关磁阻电机转矩脉动与铜耗最小化控制研究[J].电机与控制学报,2015,19(7): 52.
[12] YE J,BILGIN B,EMADI A.An extended-speed low-ripple torque control of switched reluctance motor drives[J].IEEE Transactions on Power Electronics,2015,30(3): 1457.
[13] 李孟秋,杨茂骑,任修勇,等.基于BP神经网络的开关磁阻电机直接转矩控制系统及实现[J].电力系统及其自动化学报,2017,29(1): 52.
[14] 孙庆国,吴建华.基于转矩分配函数在线修正的开关磁阻电机转矩脉动抑制策略[J].电机与控制学报,2017,21(12): 1.
[15] 张崇娇,沈小林.基于电流追踪的开关磁阻电机转矩脉动抑制研究[J].微特电机,2018,46(1): 5.
[16] 朱叶盛,章国宝,黄永明.基于PWM的开关磁阻电机直接瞬时转矩控制[J].电工技术学报,2017,32(7): 31.
[17] 赵天宇,苏庆宇.基于变论域模糊控制的无刷直流电机转速问题[J].电机与控制应用,2017,44(11): 6.