Open-End Winding Motor Field-Weaken Control Strategy of Dual 3L-Neutral Point Clamped Based on Back-Electromotive Force Harmonic Voltage
Yin Jingyuan1, Zhou Bing2
1. The Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China;
2. State Grid Beijing Electric Power Company Beijing 102699 China
The motor converter control strategy of dual 3L-NPC open-end winding motor is proposed with back-electromotive force harmonic voltage. Firstly, the mathematic model of open-end wind PMSG is established. The value and phase of back-electromotive force harmonic is observed by PR regulator, and the zero sequence current is suppressed by adding the same value and phase zero voltage to the modulation waves. The field-weaken control with the back-electromotive force harmonic voltage is analyzed, and comparisons of the field-weaken range under different modulation strategies are presented. With the certain EMF value and phase, the modulation strategy for boarding the field-weaken range is acquired, so that the motor can work at a higher speed.
尹靖元, 周冰. 双三电平中点钳位开绕组电机反电动势谐波电压下弱磁控制策略[J]. 电工技术学报, 2017, 32(10): 174-181.
Yin Jingyuan, Zhou Bing. Open-End Winding Motor Field-Weaken Control Strategy of Dual 3L-Neutral Point Clamped Based on Back-Electromotive Force Harmonic Voltage. Transactions of China Electrotechnical Society, 2017, 32(10): 174-181.
[1] Tan G, Deng Q, Liu Z. An optimized SVPWM strategy for five-level active NPC (5L-ANPC) con- verter[J]. IEEE Transactions on Power Electronics, 2014, 29(1): 386-395.
[2] 吴学智, 尹靖元, 杨捷, 等. 新型的无隔离变压器单相光伏并网逆变器[J]. 电网技术, 2013, 37(10): 2712-2718.
Wu Xuezhi, Yin Jingyuan, Yang Jie, et al. A novel single-phase grid-connected photovoltaic inverter without isolation transformer[J]. Power System Tech- nology, 2013, 37(10): 2712-2718.
[3] Senturk O S, Helle L, Munk-Nielsen S, et al. Power capability investigation based on electrothermal models of press-pack IGBT three-level NPC and ANPC VSCs for multimegawatt wind turbines[J]. IEEE Transactions on Power Electronics, 2012, 27(7): 3195-3206.
[4] Venugopal Reddy B, Somasekhar V T, Kalyan Y. Decoupled space-vector PWM strategies for a four- level asymmetrical open-end winding induction motor drive with waveform symmetries[J]. IEEE Transactions on Industrial Electronics, 2011, 58(11): 5130-5141.
[5] Jones M, Satiawan I N W, Bodo N, et al. A dual five-phase space-vector modulation algorithm based on the decomposition method[J]. IEEE Transactions on Industrial Applications, 2012, 48(6): 2110-2120.
[6] 尹靖元, 金新民, 李金科, 等. 一种新型双逆变器串联的光伏并网变流器[J]. 电网技术, 2014, 38(8): 2102-2107.
Yin Jingyuan, Jin Xinmin, Li Jinke, et al. A new type of photovoltaic grid-connected converter composed of dual inverters connected in series[J]. Power System Technology, 2014, 38(8): 2102-2107.
[7] 李永东, 肖曦. 大容量多电平变换器[M]. 北京: 科学出版社, 2005.
[8] Sandulescu P, Meinguet F, Kestelyn X, et al. Control strategies for open-end winding drives operating in the flux-weakening region[J]. IEEE Transactions on Power Electronics, 2014, 29(9): 4829-4842.
[9] Wang Y, Panda D, Lipo T, et al. Open-winding power conversion systems fed by half-controlled con- verters[J]. IEEE Transactions on Power Electronics, 2013, 28(5): 2427-2436.
[10] 年珩, 曾恒力, 周义杰. 共直流母线开绕组永磁同步电机系统零序电流抑制策略[J]. 电工技术学报, 2015, 30(20): 40-48.
Nian Heng, Zeng Hengli, Zhou Yijie. Zero sequence current suppression strategy for open winding permanent magnet synchronous motor with common DC bus[J]. Transactions of China Electrotechnical Society, 2015, 30(20): 40-48.
[11] 尹靖元, 金新民, 吴学智, 等. 兆瓦级直驱型风力发电系统的效率优化分析[J]. 北京交通大学学报, 2014(38): 74-79.
Yin Jingyuan, Jin Xinmin, Wu Xuezhi, et al. Optimal efficiency analysis of MW_level direct_drive wind generation system[J]. Journal of Beijing Jiaotong University, 2014(38):74-79.
[12] 唐芬. 直驱永磁风力发电系统并网技术研究[D]. 北京: 北京交通大学, 2012.
[13] 陈瑶. 直驱型风力发电系统全功率并网变流技术的研究[D]. 北京: 北京交通大学, 2008.
[14] 尹靖元, 金新民, 杨捷. 一种可实现两组池板独立 MPPT 控制的新型双逆变器光伏并网变流器[J]. 电工技术学报, 2015, 30(12): 97-105.
Yin Jingyuan, Jin Xinmin, Yang Jie. A novel PV grid-connected converter with independent MPPT control for two sets of PV cells using dual series inverters topology[J]. Transactions of China Electro- technical Society, 2015, 30(12): 97-105.
2017, Vol. 32 
