Research of SVPWM Algorithm Based on 120° Coordinates System
Sun Hexu1,2,Jing Kai1,Dong Yan1,Zheng Yi1
1.Engineering Technology Research Center of Wind Power System Control and Testing School of Control Science and Engineering Hebei University of Technology Tianjin 300130 China; 2.Hebei University of Science and Technology Shijiazhuang 050018 China
Abstract A new space vector pulse width modulation (SVPWM) algorithm based on 120° AB non-orthogonal coordinates is put forward in order to avoid the problems of structure complexity and large computation of the traditional algorithm.The constraint of Cartesian coordinates system is broken and two unit vectors with 120° angle are used as the bases to compose the novel non-orthogonal coordinates.Then,each space vector can be transformed into this coordinates.Through the judgment and operation of both coordinate components,the sectors judgment,action time calculation,and PWM signal’s generation can be accomplished to implement the SVPWM algorithm.At last,simulations and experiments verify the correctness of the proposed algorithm.By comparing with the traditional algorithm in digital controllers,the simplicity,speediness,and exactness of the proposed SVPWM algorithm have been testified.
Sun Hexu,Jing Kai,Dong Yan等. Research of SVPWM Algorithm Based on 120° Coordinates System[J]. Transactions of China Electrotechnical Society, 2016, 31(5): 52-59.
[1] 陈俊硕,刘景林,张颖.永磁同步电机新型矢量控制[J].西安电子科技大学学报(自然科学版),2014,41(4):179-185. Chen Junshuo,Liu Jinglin,Zhang Ying.New vector control of the permanent magnet synchronous motor[J].Journal of Xidian University,2014,41(4):179-185. [2] Michael P A,De Varajan N,Praveen K V.Indirect vector control of induction motor using space vector pulse-width-modulation (SVPWM)[J].Modelling,Measurement and Control A,2011,84(1-2):1-20. [3] 刘婷婷,谭彧,吴刚,等.基于SVPWM的高转速永磁同步电机控制系统的研究[J].电力系统保护与控制,2009,37(12):11-14. Liu Tingting,Tan Yu,Wu Gang,et al.Simulating of high speed PMSM control system based on SVPWM[J].Power System Protection and Control,2009,37(12):11-14. [4] Zhang Zhifeng,Tang Renyuan,Bai Baodong,et al.Novel direct torque control based on space vector modulation with adaptive stator flux observer for induction motors[J].IEEE Transactions on Magnetics,2010,46(8):3133-3136. [5] 曹承志,时洪图,尹明军.基于SVPWM 的直接转矩控制新方案[J].系统仿真学报,2008,20(21):5924-5928. Cao Chengzhi,Shi Hongtu,Yin Mingjun,et al.Novel DTC system based on space vector pulse width modulation[J].Journal of System Simulation,2008,20(21):5924-5928. [6] 何亚屏,文宇良,许峻峰,等.基于多模式SVPWM 算法的永磁同步牵引电机弱磁控制策略[J].电工技术学报,2012,27(3):92-99. He Yaping,Wen Yuliang,Xu Junfeng,et al.High-power permanent magnet fiux-weakening strategy based on multi-mode SVPWM[J].Transactions of China Electrotechnical Society,2012,27(3):92-99. [7] 张寅孩,汪松松,葛金法,等.一种新的差值SVPWM调制方法[J].电工技术学报,2010,25(8):99-104. Zhang Yinhai,Wang Songsong,Ge Jinfa,et al.A novel SVPWM modulation method[J].Transactions of China Electrotechnical Society,2010,25(8):99-104. [8] Zhu Rongwu,Wu Xiaojie.Simplified SVPWM that integrates overmodulation and neutral point potential control[J].Journal of Power Electronics,2014,14(5):926-936. [9] 齐昕,王冲,周晓敏,等.一种低硬件资源消耗快速SVPWM 算法[J].电机与控制学报,2014,18(4):31-38. Qi Xin,Wang Chong,Zhou Xiaomin,et al.Low hardware resource consumption fast SVPWM algorithm[J].Electric Machines and Control,2014,18(4):31-38. [10]邱银锋,梁志珊.abc坐标系下空间矢量PWM实现研究[J].电力系统保护与控制,2011,39(13):36-40. Qiu Yinfeng,Liang Zhishan.Research on implementation of the space vector PWM in abc coordinates[J].Power System Protection and Control,2011,39(13):36-40. [11]方斯琛,李丹,周波,等.新型无扇区空间矢量脉宽调制算法[J].中国电机工程学报,2008,28(30):35-40. Fang Sichen,Li Dan,Zhou Bo,et al.A novel algorithm of space-vector PWM without sector calculation[J].Proceedings of the CSEE,2008,28(30):35-40. [12]Lima E F F,Filho N P,Pinto J O P.FPGA implementation of space vector PWM algorithm for multilevel inverters using non-orthogonal moving reference frame[C]//IEEE International Electric Machines and Drives Conference,Miami,FL,2009:709-716. [13]阎治安,唐明,易萍虎.电机控制中电压空间矢量脉宽调制算法的探究[J].西安交通大学学报,2006,40(12):1374-1377. Yan Zhian,Tang Ming,Yi Pinghu.Space vector pulse width modulation algorithm with applications[J].Journal of Xi’an Jiaotong University,2006,40(12):1374-1377. [14]黄招彬,游林儒,汪兆栋.一种考虑死区与最小脉宽限制的IPWM算法[J].电工技术学报,2014,29(12):12-18. Huang Zhaobin,You Linru,Wang Zhaodong.A novel integrated pwm strategy considering dead-time and minimum pulse-width limitation[J].Transactions of China Electrotechnical Society,2014,29(12):12-18.
2016, Vol. 31 
