PWM变换器能灵活调节功率和功率因数，可用作风力发电机和电网之间的功率接口。本文对PWM变换器的建模进行了深入研究，建立了基于简化等效模型的旋转坐标下数学模型和PWM变换器各部分数学模型。对风力发电PWM变换器的控制策略和控制器设计进行了讨论，使用Matlab工具建立了PWM变换器的仿真模型，仿真结果说明了PWM变换器建模和控制策略的正确性，基于dSPACE硬件在回路平台构建了实验系统，实验结果验证了仿真建模的正确性。

The PWM converter can adjust power and power factor freely and may be used as the power interface between the wind power generator and the grid. This paper proposes the modeling study of the PWM converter. The mathematical models for simple equivalent model based under rotation-axis and different parts of PWM converter are built. The control strategy and controller design of PWM converter for wind power generation are discussed and the simulation model is built by using Matlab tool. The simulation results show the correctness of the modeling and control strategy of the PWM converter. The experimental platform is built based on the dSPACE system and the experiment results validate the simulation model.

国家自然科学基金;国家863高技术基金

[1] 张崇巍，张兴．PWM整流器及其控制[M]．北京：机械工业出版社，2003：1-4． [2] Dixon J W，Ooi B T．Indirect current control of a unity power factor sinusoidal current boost type three-phase rectifier[J]．IEEE Trans on Power Electron，1998(35)：508-515． [3] Wu R，Dewam S B，Semon G R．Analysis of an AC to DC voltage source converter using PWM with phase and amplitude control[J]．IEEE Trans on Industrial Application，1991(27)：355-364． [4] Blasko V，Kaura V．A new mathematical model and control of a three-phase AC-DC voltage source converter[J]．IEEE Trans on Power Electronics，1997，12(1)：116-123． [5] 赵仁德，贺益康，刘其辉．提高PWM整流器抗负载扰动性能研究[J]．电工技术学报，2004，19(8)：67-72． Zhao Rende，He Yikang，Liu Qihui．Research on improvement of anti-disturbance performance for three-phase PWM rectifier[J]．Transactions of China Electrotechnical Society，2004，19(8)：67-72(in Chinese)． [6] 张强，张崇巍，张兴，等．风力发电用大功率并网逆变器研究[J]．电机工程学报，2007，27(16)：54-59． Zhang Qiang，Zhang Chongwei，Zhang Xing，et al．Study on grid-connected inverter used in high-power wind generation system [J]．Proceedings of the CSEE，2007，27(16)：54-59(in Chinese)． [7] 王峰，姜建国．风力发电机用双PWM变换器的功率平衡联合控制策略研究[J]．中国电机工程学报，2006，26(22)：134-139． Wang Feng，Jiang Jianguo．Research of power-balancing combined control scheme for back to back PWM converters used in the wind generator[J]．Proceedings of the CSEE，2006，26(22)：134-139(in Chinese)． [8] 张家胜，张磊．PWM逆变器的直流侧等效模型研究[J]．中国电机工程学报，2007，27(4)：103-107． Zhang Jiasheng，Zhang Lei．Research on the DC-side equivalent model of PWM inverters[J]．Proceedings of the CSEE，2007，27(4)：103-107(in Chinese)． [9] 王儒，方宇，邢岩．三相高功率因数PWM变换器可逆运行研究[J]．电工技术学报，2007，22(8)：46-51． Wang Ru，Fang Yu，Xing Yan．Research on bidirectional operation of a three-phase high power factor converter[J]．Transactions of China Electrotechnical Society，2007，22(8)：46-51(in Chinese)． [10] 黄凯征，汪万伟，王旭．基于滑模控制的PWM整流器建模与仿真[J]．电网技术，2009，33(8)：18-23． Huang Kaizheng，Wang Wanwei，Wang Xu．Modeling and simulation of PWM rectifier based on sliding-mode control[J]．Power System Technology，2009，33(8)：18-23(in Chinese)． [11] Pena R，Clare J C，Asher G M．Doubly-fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generation[J]．IEE Proceedings of Electric Power Applications，1996，143(3)：231-241． [12] Monica C，Santigo A，Juan C B．Control of permanent-magnet generators applied to variable-speed wind-energy system connected to the grid[J]．IEEE Trans on Energy Conversion，2006，21(1)：130-135． [13] Liserre M，Blaabjerb F，Hansen S．Design and control of an LCL-filter-based three-phase active rectifier[J]．IEEE Trans on Industry Applications，2005，41(5)：1281-1291． [14] Teodorescu R，Blaabjerg F，Liserre M，et al．A stable three-phase LCL-filter based active rectifier without damping[C]．IEEE IAS2003，America，2003． [15] 何良，赵继敏，谢海先．三相电压型脉宽调制整流器的LCL滤波器设计[J]．电网技术，2006，30(S1)：51-53. He Liang，Zhao Jimin，Xie Haixian．The LCL filter design of three-phase PWM rectifier[J]．Power System Technology，2006，30(S1)：51-53(in Chinese)．