Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于占空比调制的新型十八扇区直接转矩研究

来源:电工电气发布时间:2020-07-16 14:16 浏览次数:42
基于占空比调制的新型十八扇区直接转矩研究
 
吴中豪,周洁敏,李涛,朱紫涵
(南京航空航天大学 民航学院,江苏 南京 211000)
 
    摘 要:传统永磁同步电机直接转矩控制稳态运行时,存在定子磁链幅值和电磁转矩脉动较大的问题。分析了有效电压矢量对于定子磁链和转矩控制效果的不平衡问题,基于扇区细分的思想,并结合三电平逆变器新增的6个有效电压矢量,提出了新型十八扇区直接转矩控制方法,以此来改善电压矢量的控制效果。针对传统直接转矩控制中,由于整个采样周期施加同一电压矢量而带来的过补偿问题,采用占空比调制减小转矩脉动。与传统直接转矩控制效果进行仿真对比,验证了所提新型控制策略减小定子磁链和电磁转矩波动的有效性。
    关键词:永磁同步电机;直接转矩控制;占空比调制
    中图分类号:TM341     文献标识码:A     文章编号:1007-3175(2020)07-0013-06
 
New Eighteen-Sector Direct Torque Control Based on Duty Ratio Modulation
 
WU Zhong-hao, ZHOU Jie-min, LI Tao, ZHU Zi-han
(College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211 000, China)
 
    Abstract: In the traditional direct torque control (DTC) of permanent magnet synchronous motor (PMSM) in steady state operation, the ripple of stator flux linkage amplitude and electromagnetic torque is large.In this paper, the unbalance problem of the effect of active voltage vectors on stator flux linkage and torque control is analyzed.Based on the idea of sector subdivision, combined with the six new active voltage vectors added by the three-level inverter, a new eighteen-sector direct torque control method is proposed to improve the control effect of voltage vectors.For the overcompensation problem caused by the voltage vector acting on a whole sampling period in DTC, the duty ratio modulation (DRM) method is used to reduce the torque ripple.Compared with the control effect of traditional direct torque, the effectiveness of the proposed new control strategy to reduce the ripple of stator flux linkage and electromagnetic torque is verified.
    Key words: permanent magnet synchronous motor; direct torque control; duty ratio modulation
 
参考文献
[1] LASCU C, TRZYNADLOWSKI A M.Combining the principles of sliding mode,direct torque control,and space-vector modulation in a high-performance sensorless AC drive[J]. IEEE Transactions on Industry Applications,2004,40(1):170-177.
[2] NIU F, WANG B, BABEL A S,et al.Comparative Evaluation of Direct Torque Control Strategies for Permanent Magnet Synchronous Machines[J]. IEEE Transactions on Power Electronics,2016,
31(2):1408-1424.
[3] TRIPATHI A, KHAMBADKONE A M,PANDA S K.Torque Ripple Analysis and Dynamic Performance of a Space Vector Modulation Based Control Method for AC-Drives[J]. IEEE Transactions on Power Electronics,2005,20(2):485-492.
[4] CHOI Y S, CHOI H H, JUNG J W . Feedback Linearization Direct Torque Control with Reduced Torque and Flux Ripples for IPMSM Drives[J]. IEEE Transactions on Power Electronics,2016,31(5):3728-3737.
[5] ZHANG Y, ZHU J, XU W, et al.A Simple Method to Reduce Torque Ripple in Direct Torque-Controlled Permanent-Magnet Synchronous Motor by Using Vectors with Variable Amplitude and Angle[J].IEEE Transactions on Industrial Electronics,2011,58(7):2848-2859.
[6] ZHANG Z, ZHAO Y, QIAO W, et al. A Space-Vector-Modulated Sensorless Direct-Torque Control for Direct-Drive PMSG Wind Turbines[J].IEEE Transactions on Industry Applications,2014,50(4):2331-2341.
[7] ABOSH A H, ZHU Z Q, REN Y.Reduction of Torque and Flux Ripples in Space-Vector Modulation Based Direct Torque Control of Asymmetric Permanent Magnet Synchronous Machine[J]. IEEE Transactions on Power Electronics,2017,32(4):2976-2986.
[8] ZHANG Z, WEI C, QIAO W, et al. Adaptive Saturation Controller-Based Direct Torque Control for Permanent-Magnet Synchronous Machines[J].IEEE Transactions on Power Electronics,2016,31(10):7112-7122.
[9] CHEEMA M A M, FLETCHER J, XIAO D, et al.A Direct Thrust Control Scheme for Linear Permanent Magnet Synchronous Motor Based on On-Line Duty Ratio Control[J]. IEEE Transactions on Power Electronics,2016,31(6):4416-4428.
[10] REN Y, ZHU Z Q, LIU J.Direct Torque Control of Permanent-Magnet Synchronous Machine Drives with a Simple Duty Ratio Regulator[J]. IEEE Transactions on Industrial Electronics,2014,61(10):5249-5258.
[11] 徐艳平,钟彦儒. 扇区细分和占空比控制相结合的永磁同步电机直接转矩控制[J]. 中国电机工程学报,2009,29(3):102-108.
[12] 朱军,王栋,吴宇航,等. 基于十八扇区细分的含零矢量PMSM-DTC研究[J]. 机电工程,2017(8):885-889.

 

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