基于模糊在线调整权重因子的三相六开关容错逆变器驱动异步电机FCS-MPTC
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摘要
为了进一步提高异步电机的控制性能,减小磁链和电流脉动,针对传统异步电机有限控制集模型预测转矩控制(FCS-MPTC)中目标代价函数权重因子的配置问题,提出一种模糊在线调整权重因子的异步电机FCS-MPTC方法。通过判断转矩和磁链误差,采用Takagi-Sugeno模糊控制方法实现对权重因子的动态调整,并给出了模糊论域和相应的模糊规则设计。同时考虑到三相异步电机驱动系统中逆变器开关故障给控制系统带来的影响,采用三相六开关容错控制策略对系统进行容错控制。仿真结果表明:该控制方法能够平滑磁链和电流输出,减小电流谐波。
In order to further improve the control performance of asynchronous motor and reduce flux and current ripple, a method of fuzzy online adjusting of weight factor was proposed for the allocation of objective cost function weight factor in traditional finite control set model predictive torque control(FCS-MPTC). The Takagi-Sugeno model fuzzy control method was used to realize the dynamic adjustment of the weighting factor by judging the torque and flux linkage error, and the domain of fuzzy control and its reasoning rule were also built. At the same time, considering the influence of the inverter switch fault on the control system in the three-phase asynchronous motor drive system, a three-phase six-switch tolerant control strategy was used as the tolerant control strategy. The simulation results showed that the control method could smooth the flux linkage and current output and reduce the current harmonics.
In order to further improve the control performance of asynchronous motor and reduce flux and current ripple, a method of fuzzy online adjusting of weight factor was proposed for the allocation of objective cost function weight factor in traditional finite control set model predictive torque control(FCS-MPTC). The Takagi-Sugeno model fuzzy control method was used to realize the dynamic adjustment of the weighting factor by judging the torque and flux linkage error, and the domain of fuzzy control and its reasoning rule were also built. At the same time, considering the influence of the inverter switch fault on the control system in the three-phase asynchronous motor drive system, a three-phase six-switch tolerant control strategy was used as the tolerant control strategy. The simulation results showed that the control method could smooth the flux linkage and current output and reduce the current harmonics.
引文
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[12] BOLOGNANI S,ZORDAN M,ZIGLIOTTO M.Experimental fault-tolerant control of a PMSM drive[J].IEEE Transactions on Industrial Electronics,2000,47(5):1134.
[13] 贺虎成,张玉峰,王永宾,等.新型三相容错逆变器研究[J].电力自动化设备,2015,35(5):89.
[14] 金楠,衡龙雨,马孝强,等.电容均压三相四开关变换器预测功率控制[J].电机与控制应用,2018,45(5):46.
[15] 韩力,王崇任,李辉,等.基于DTC的异步电机三相六开关容错控制策略[J].电机与控制学报,2015,19(10):7.
[2] 张虎,张建伟,郭孔辉,等.基于扰动观测器的电动助力转向系统用永磁同步电机鲁棒预测电流控制[J].吉林大学学报(工学版),2015,45(3):711.
[3] 柳志飞,杜贵平,杜发达.有限集模型预测控制在电力电子系统中的研究现状和发展趋势[J].电工技术学报,2017,32(22):58.
[4] ROJAS C A,RODRIGUEZ J,VILLARROEL F,et al.Predictive torque and flux control without weighting factors[J].IEEE Transactions on Industrial Electronics,2013,60(2):681.
[5] SIAMI M,SAVADKOOHI H K,ABBASZADEH A,et al.Predictive torque control of a permanent magnet synchronous motor fed by a matrix converter without weighting factor[C]//IEEE Power Electronics and Drive Systems Technologies Conference,2016.
[6] RAVI E K M,KUNISETTI V P K,THIPPIRIPATI V K.Enhanced predictive torque control for open end winding induction motor drive without weighting factor assignment[J].IEEE Transactions on Power Electronics,2018,34(1):503.
[7] ZHANG Y,YANG H.An improved two-vectors-based model predictive torque control without weighting factors for induction motor drives[C]//IEEE International Conference on Electrical Machines and Systems,2014:2766.
[8] MUDDINENI V P,SANDEPUDI S R,BONALA A K.Simplified finite control set model predictive control for induction motor drive without weighting factors[C]//IEEE International Conference on Power Electronics,Drives and Energy Systems,2016.
[9] XIA C,QIU X,WANG Z,et al.Predictive torque control for voltage source inverter-permanent magnet synchronous motor based on equal torque effect[J].IET Electric Power Applications,2016,10(3):208.
[10] 涂文聪,骆光照,刘卫国.基于模糊动态代价函数的永磁同步电机有限控制集模型预测电流控制[J].电工技术学报,2017,32(16):89.
[11] 安群涛,孙醒涛,赵克,等.容错三相四开关逆变器控制策略[J].中国电机工程学报,2010,30(3):14.
[12] BOLOGNANI S,ZORDAN M,ZIGLIOTTO M.Experimental fault-tolerant control of a PMSM drive[J].IEEE Transactions on Industrial Electronics,2000,47(5):1134.
[13] 贺虎成,张玉峰,王永宾,等.新型三相容错逆变器研究[J].电力自动化设备,2015,35(5):89.
[14] 金楠,衡龙雨,马孝强,等.电容均压三相四开关变换器预测功率控制[J].电机与控制应用,2018,45(5):46.
[15] 韩力,王崇任,李辉,等.基于DTC的异步电机三相六开关容错控制策略[J].电机与控制学报,2015,19(10):7.
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