基于分类算法的六相同步风力发电机矢量控制系统研究

发布时间：2019-04-12 06:21

【摘要】：六相同步风力发电系统是一种新型的大容量风电系统,其机侧变流器可以采用矢量控制的可控整流拓扑。提出了一种基于分类算法双三相矢量空间脉宽调制的六相同步风力发电机矢量控制系统。在旋转矢量空间解耦坐标系下对机侧变流器矢量控制策略进行阐述,并提出了矢量控制系统及调制策略的目的。对基于分类算法的双三相矢量空间脉宽调制方案进行设计,并推导得到此方案能保证z1-z2子平面平均伏秒为0的原理。由于引入分类算法,该调制策略只需简单的线性计算即可确定开关电压矢量及其作用时间,无需对扇区及三角函数等进行计算。通过仿真和实验验证了此矢量控制系统具有良好的动静态性能,并能够有效对谐波电流进行抑制。
[Abstract]:Six-phase synchronous wind power generation system is a new type of large-capacity wind power system. Its side-side converter can adopt vector-controlled controllable rectifier topology. A six-phase synchronous wind turbine vector control system based on dual three-phase vector space pulse width modulation (SVPWM) is proposed. In the rotating vector space decoupled coordinate system, the vector control strategy of machine side converter is described, and the purpose of vector control system and modulation strategy is put forward. The dual three-phase vector space pulse width modulation scheme based on classification algorithm is designed, and the principle that the average volt second of z1-z2 subplane can be guaranteed to be zero is deduced. Because of the introduction of classification algorithm, the switching voltage vector and its operating time can be determined by simple linear calculation, without the need to calculate sectors and trigonometric functions. The simulation and experiment show that the vector control system has good dynamic and static performance and can effectively suppress the harmonic current.
【作者单位】：国网天津市电力公司电力科学研究院;天津大学智能电网教育部重点实验室;中国科学院电工研究所;
【基金】：国家高技术研究发展计划(863计划)资助项目(2014AA05200) 国家电网公司科技项目资助项目(NO.SGTJ0000KXJS1400087)
【分类号】：TM315

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