Direct Power Control for Open-Winding Brushless Doubly-Fed Generator Based on Power Error Comparison
Jin Shi1, Wang Zhongzheng1, Wang Dairui1,2, Zhu Liancheng1,3
1.School of Electrical Engineering Shenyang University of Technology Shenyang 110870 China 2.Huawei Technologies Co.Ltd Shenzhen 518129 China 3.School of Electronic and Information Engineering University of Science and Technology Liaoning Anshan 114051 China
Abstract：A brushless doubly-fed wind power generator with open-winding structure and its control system are proposed. The open-winding brushless doubly-fed generator (OW-BDFG) means that the control winding is opened completely and its two ends are respectively connected to an inverter to control the OW-BDFG. This topology structure, which has smaller inverter capacity and lower switching frequency, can independently control each phase current of the control winding to enhance the control flexibility and fault redundancy ability of the wind power system. Moreover, for the special structure of the OW-BDFG, a power error comparison direct power control (PEC-DPC) method is proposed to implement the power tracking through the decoupling control of the active and reactive powers of the OW-BDFG. This control method has the properties of simple structure, easy realization, small computational amount, fast dynamic response, as well as good real-time performance without observing the flux amplitude. Finally, the feasibility and superiority of the proposed OW-BDFG and its PEC-DPC system are verified through the simulation comparison and the experimental study.
金石, 王中正, 王代睿, 朱连成. 基于功率误差比较的开绕组无刷双馈发电机直接功率控制[J]. 电工技术学报, 2016, 31(7): 50-56.
Jin Shi, Wang Zhongzheng, Wang Dairui, Zhu Liancheng. Direct Power Control for Open-Winding Brushless Doubly-Fed Generator Based on Power Error Comparison. Transactions of China Electrotechnical Society, 2016, 31(7): 50-56.
[1] 王海峰.风力发电的发展现状与关键技术研究综述[J].中国高新技术企业,2012,(增3):12-14. Wang Haifeng.Development status and key technology research of wind power generation[J].China High-Tech Enterprises,2012,(S3):12-14. [2] 赵梅花,杨勇,钟沁宏.新型混合励磁直驱式风力发电系统MPPT控制[J].电工技术学报,2013,28(5):30-36. Zhao Meihua,Yang Yong,Zhong Qinhong.Tracking the peak power points for a wind energy conversion system based on hybrid excitation synchronous generator[J].Transactions of China Electrotechnical Society,2013,28(5):30-36. [3] 席伟,韩力,高强.无刷双馈电机的研究现状及发展前景[J].微电机,2010,43(9):80-84. Xi Wei,Han Li,Gao Qiang.Research status and development of brushless doubly-fed machine[J].Micromotors,2010,43(9):80-84. [4] Kawabata Y,Nasu M,Nomoto T,et al.High-efficiency and low acoustic noise drive system using open-winding AC motor and two space-vector-modulated inverters[J].IEEE Transactions on Industrial Electronics,2002,49(4):783-789. [5] Kwak M S,Sul S K.Control of an open-winding machine in a grid-connected distributed generation system[J].IEEE Transactions on Industry Applications,2008,44(4):1259-1267. [6] Wang Y,Lipo T A,Pan D.Half-controlled-converter-fed open-winding permancent magnet synchronous generator for wind applications[C]//14th International Power Electronics and Motion Control Conference,Ohrid,2010:T4-123-T4-126. [7] 姚兴佳,张保华,王士荣,等.基于DSVM的无刷双馈风电系统抗脉动模糊DTC策略[J].可再生能源,2013,31(4):55-59. Yao Xingjia,Zhang Baohua,Wang Shirong,et al.Anti-ripple fuzzy DTC strategy of brushless doubly-fed wind power generation system based DSVM[J].Renewable Energy Resources,2013,31(4):55-59. [8] 张凤阁,金石,张武.基于无速度传感器的无刷双馈风力发电机直接转矩控制[J].电工技术学报,2011,26(12):20-27. Zhang Fengge,Jin Shi,Zhang Wu.Direct torque control for brushless doubly-fed wind power generator based on speed sensorless[J].Transactions of China Electrotechnical Society,2011,26(12):20-27. [9] Zhang Y C,Zhu J G.Direct torque control of cascaded brushless doubly fed induction generator for wind energy applications[C]//2011 IEEE International Electric Machines & Drives Conference,Niagara Falls,ON,2011:741-746. [10]张岳,王凤翔,邢军强,等.磁障转子无刷双馈电机[J].电工技术学报,2012,27(7):49-54. Zhang Yue,Wang Fengxiang,Xing Junqiang,et al.Brushless doubly-fed machines with magnetic barrier rotor[J].Transactions of China Electrotechnical Society,2012,27(7):49-54. [11]金石.变速恒频无刷双馈风力发电机的直接转矩控制技术研究[D].沈阳:沈阳工业大学,2011. [12]Chall H,Jovanovic M.Direct power control of brushless doubly-fed reluctance machines[C]//5th IET International Conference on Power Electronics,Machines and Drives,Brighton,UK,2010:1-6. [13]李生民,何欢欢,张玉坤,等.基于滑模变结构的双馈风力发电机直接功率控制策略研究[J].电网技术,2013,37(7):2006-2010. Li Shengmin,He Huanhuan,Zhang Yukun,et al.A sliding mode variable structure-based direct power control strategy for doubly fed induction generator[J].Power System Technology,2013,37(7):2006-2010.
2016, Vol. 31 
