三相八开关容错逆变器驱动PMSM系统模型预测直接转矩控制
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摘要
针对三相八开关容错逆变器的PMSM驱动系统,提出模型预测转矩控制(MPTC)策略,并根据驱动系统的运行模式建立数学模型。取值设计复杂性和定子电流总谐波失真(THD)值的降低可利用改进型的MPTC策略来实现,且该策略还可减少磁链以及转矩脉动。利用电流反馈特性的容错控制可有效抑制直流侧母线电容分压不均衡的问题。通过仿真结果可知,该方法不仅具有良好的动态性能、较强的抗干扰性以及鲁棒性,还能降低其开关的损耗和定子电流的总谐波失真值,从而保证系统的可靠性和稳定性。
A novel model predictive torque control(MPTC)strategy is proposed for the PMSM drive system of a threephase eight-switch fault-tolerant inverter,and a mathematical model is established based on the operating mode of the drive system. Value design complexity and stator current total harmonic distortion(THD)values can be reduced with the improved MPTC strategy,and this strategy can also reduce flux linkage and torque ripple. The fault-tolerant control of the current feedback characteristic is used to effectively suppress the imbalance of the DC side bus bar capacitor voltage division.The simulation results show that the proposed method not only has good dynamic performance,strong antiinterference and robustness,but also reduces the loss of its switching and the total harmonic distortion(THD)of the stator current,thus ensuring the system reliability and system stability.
A novel model predictive torque control(MPTC)strategy is proposed for the PMSM drive system of a threephase eight-switch fault-tolerant inverter,and a mathematical model is established based on the operating mode of the drive system. Value design complexity and stator current total harmonic distortion(THD)values can be reduced with the improved MPTC strategy,and this strategy can also reduce flux linkage and torque ripple. The fault-tolerant control of the current feedback characteristic is used to effectively suppress the imbalance of the DC side bus bar capacitor voltage division.The simulation results show that the proposed method not only has good dynamic performance,strong antiinterference and robustness,but also reduces the loss of its switching and the total harmonic distortion(THD)of the stator current,thus ensuring the system reliability and system stability.
引文
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[19]Dadras S,Momeni H R.Fractional terminal sliding mode control design for a class of dynamical systems with uncertainty[J].Communications in Nonlinear Science and Numerical Simulation,2012,17(1):367-377.
[20]Zhang Yongchang,Zhu Jianguo.Direct torque control of permanent magnet synchronous motor with reduced torque ripple and commutation frequency[J].IEEETransactions on Power Electronics,2011,26(1):235-248.
[21]Preindl M,Bolognani S.Model predictive direct torque control with finite control set for PMSM drive systems,Part 2:Field weakening operation[J].IEEETransactions on Industrial Informatics,2013,9(2):648-657.
[22]Niu Feng,Wang Bingsen,Babel A S,et al.Comparative evaluation of direct torque control strategies for permanent magnet synchronous machines[J].IEEE Transactions on Power Electronics,2015,31(2):1408-1424.
[23]Li Shihua,Liu Zhigang.Adaptive speed control for permanent-magnet synchronous motor system with variations of Load I nertia[J].IEEE Transactions on Industrial Electronics,2009,56(8):3050-3059.
[2]Farnesi S,Fazio P,Marchesoni M.A new fault tolerant NPC converter system for high power induction motor drives[A].8th IEEE Symposium on Diagnostics for Electric Machines,Power Electronics&Drives[C],Bologna,Italy,2011.
[3]Abdelghani H B,Ben Abdelghani A B,SlamaBelkhodja I.Three level fault tolerant DTC control for induction machine drives[A].International MultiConference on Systems,Signals and Devices,IEEEMediterranean Electrotechnical Conference[C],Chemnitz,Germany,2012.
[4]Baptista B R O,Abadi M B,Mendes A M S,et al.The performance of a three-phase induction motor fed by a three-level NPC converter with fault tolerant control strategies[A].IEEE International Symposium on Diagnostics for Electric Machines,Power Electronics and Drives[C],Valencia,Spain,2013.
[5]Wiak S,Baptista B R O,Mendes A M S,et al.Thermal analysis and efficiency of an induction motor driven by a fault-tolerant multilevel inverter using FEM[J].COMPEL,2015,34(2):573-589.
[6]Matos D B,Estima J O,Margues Cardoso A J.Performance of a synchronous reluctance motor drive with a fault-tolerant three-level neutral point clamped inverter[A].IEEE International Conference on Electrical Machines[C],Lausanne,Switzerland,2016.
[7]梅杨,孙凯,黄震.二极管中点钳位型三电平逆变器-交流电机调速系统的高精度建模与分析[J].电工技术学报,2015,30(6):200-207.[7]Mei Yang,Sun Kai,Huang Zhen.High accuracy modeling and analysis of neutral-point-clamped threelevel inverter fed AC motor drive system[J].Transactions of China Electrotechnical Society,2015,30(6):200-207.
[8]夏长亮,张天一.结合开关表的三电平逆变器永磁同步电机模型预测转矩控制[J].电工技术学报,2016,31(20):83-92.[8]Xia Changliang,Zhang Tianyi.Model predictive torque control with switching table for neutral point clamped three-level inverter fed permanent magnet synchronous motor[J].Transactions of China Electrotechnical Society,2016,31(20):83-92.
[9]Ceballos S,Pou J,Robles E,et al.Three-leg faulttolerant neutral-point-clamped converter[A].IEEEInternational Symposium on Industrial Electronics[C],Vigo,Spain,2007:3180-3185.
[10]Ben Abdelghani H,Benabdelghani A B,SlamaBelkhodja I,et al.Fault tolerant NPC converter control for isolated PV sytems:Application for an isolated telecommunication center[A].16th IEEEElectrotechnical Conference[C],Yasmine Hammamet,Tunisia,2012.
[11]Caseiro L M A,Mendes A M S,Alcaso A N.Fault diagnosis and tolerance in three-level neutral-pointclamped rectifiers[A].IECON 2012,38th Annual Conference on IEEE Industrial Elctronics Society[C],Montreal,QC,Canada,2012.
[12]Rocha A V,Silva S M,Pires I A,et al.A new faulttolerant realization of the active three-level NPCconverter[A].IEEE Energy Conversion Congress and Expositi-on[C],Pittsburgh,PA,USA,2014.
[13]Katebi R,Stark A,He Jiangbiao,et al.Advanced three level active neutral point converter with fault tolerant capabilities[A].IEEE the Energy Conversion Congress and Exposition[C],Milwaukee,WI,USA,2016.
[14]吴迪,伍小杰,苏良成,等.基于开绕组电机的双三电平逆变器容错控制方法[J].电力自动化设备,2014,34(4):65-71.[14]Wu Di,Wu Xiaojie,Su Liangcheng,et al.Improved grid-connection operation of microgrid converter based on droop control[J].Electric Power Automation Equipment,2014,34(4):65-71.
[15]Ceballos S,Pou J,Zaragoza J,et al.Fault-tolerant neutral point-clamped converter solutions based on including a fourth resonant leg[J].IEEE Transactions on Industrial Electronics,2011,58(6):2293-2303.
[16]刘勇超,葛兴来,冯晓云.两电平与三电平NPC逆变器单桥臂故障重构拓扑SVPWM算法比较研究[J].中国电机工程学报,2016,36(3):775-783.[16]Liu Yongchao,Ge Xinglai,Feng Xiaoyun.Comparison study of SVPWM algorithms of the post-fault reconfigured topologies for two-level and three level NPCinverters with failure of a leg[J].Proceedings of the CSEE,2016,36(3):775-783.
[17]Orlowska-Kowalska T,Dybkowski M.Stator current based MRAS estimator for a wide range speed sensorless induction motor drive[J].IEEE Transactions on Industrial Electronics,2010,57(4):1296-1308.
[18]滕青芳,李国飞,朱建国,等.基于扩张状态观测器的无速度传感器容错逆变器驱动永磁同步电机系统自抗扰模型预测转矩控制[J].控制理论与应用,2016,33(5):676-684.[18]Teng Qingfang,Li Guofei,Zhu Jianguo,et al.Sensorless active disturbance rejection,model predictive torque control using extended state observer for permanent magnet synchronous motor fed by threephase four-switch inverter[J].Control Theory&Applications,2016,33(5):676-684.
[19]Dadras S,Momeni H R.Fractional terminal sliding mode control design for a class of dynamical systems with uncertainty[J].Communications in Nonlinear Science and Numerical Simulation,2012,17(1):367-377.
[20]Zhang Yongchang,Zhu Jianguo.Direct torque control of permanent magnet synchronous motor with reduced torque ripple and commutation frequency[J].IEEETransactions on Power Electronics,2011,26(1):235-248.
[21]Preindl M,Bolognani S.Model predictive direct torque control with finite control set for PMSM drive systems,Part 2:Field weakening operation[J].IEEETransactions on Industrial Informatics,2013,9(2):648-657.
[22]Niu Feng,Wang Bingsen,Babel A S,et al.Comparative evaluation of direct torque control strategies for permanent magnet synchronous machines[J].IEEE Transactions on Power Electronics,2015,31(2):1408-1424.
[23]Li Shihua,Liu Zhigang.Adaptive speed control for permanent-magnet synchronous motor system with variations of Load I nertia[J].IEEE Transactions on Industrial Electronics,2009,56(8):3050-3059.