基于LabVIEW的双馈风力发电实验系统的研究

Research on LabVIEW-based Wind Power Generation System of Doubly-fed Motor

为了解决双馈风力发电系统发电方式、并网方式和并网后对电网可能带来的影响,分析了传统风力发电控制器的不足。提出了以LabVIEW软件、PXI及FPGA硬件为核心的变流器系统的控制器。该控制器以图形化编程来实现控制算法(矢量控制)部分.通过详细的双馈风力发电系统仿真建模,较好地实现了柔性并网、功率解耦控制、电能质量的日标。最后,搭建了双脉宽调制(PWM)变流器的双馈风电系统实验平台进行实验,完成了整个系统的硬件和软件设计,验证了控制策略的有效性和可行性。

To satisfy the requirement of doubly-fed wind power generation system in the flexible grid, power decou- pling control and the power quality, the traditional insufficient power electronic controller is analysed, which is put fo- rward to the LabVIEW software PXI,and FPGA as the core of hardware system of inverter controller.This method takes the graphical programming to implement the control algorithms （vector control）, realizing the flexible grid, deco- upling control of power, the power quality target through detailed doubly-fed wind power system simulation modeling. Finally, the dual pulse width modulation （PWM） converter experiment platform for experiments of doubly-fed wind power system is built.Experimental results verify the feasibility and effectiveness of the control strategy.