Doubly-fed Wind Power System Hardware-in-the-loop Test Platform Design And Implementation

Wind energy as a clean resource of renewable energy, more and more world attention. With the development of technological progress and environmental protection, wind energy market has developed rapidly. Since 2004, the global wind capacity has doubled. The next 20-25 years, wind power can compete with traditional power in business. In the recent years, the wind power market has explosive growth. Due to the traditional test platform for high investment cost, wind power system verify for high power consume and test coverage is low. The quality is unable to meet the product performance under all load conditions. The result of low wind power system reliability, quality defects is variety of serious accidents. Accidents expose the test of blind spots. Outbreak the growth of wind power volume, there is a high quality demand of wind power system, how to ensure the quality of products, and automatic test control strategies, the traditional test platform has been unable to meet demand, develop a flexible, configurable and precision automatic test platform has become an urgent matter.In this context, this paper describes a kind of the doubly-fed wind power generation system(Doubly-Fed Induction Generator, referred DFIG) hardware-in-the-loop(referred HIL) test platform. It used the automotive electronics real-time HIL in the wind power system test and validation. Test platform is made of wind power system core controller + software model. The wind power system electrical parts are converted to real-time model with software. This solution can flexibly change the test conditions and achieve various test models of fast switch. Not only reduced the system development cost and test resource consume, also improve products test precision and test coverage.In the text, HIL that based on Lab VIEW electromagnetic temporarily state simulation software – Star Sim made object model converter real-time system model, run in the PXI-bus real-time CPU and FPGA. Through physical connection hardware interface and the object being measured. HIL test platform output the voltage and current signal from FPGA module, the object of test measured the signal, then provide a feedback signal to HIL, form a closedloop.The specific research tasks are follows:1. Learn about HIL principle and develop history, wind power system HIL test platform research purposes. Analysis HIL test platform advantage compared to traditional test platform. Learn about domestic and foreign wind companies and universities about DFIG HIL development.2. Bring on the HIL test platform design method; analysis electrical model of software development and results.3. According to design and test purpose that match the software and hardware. In the paper, based on NI's Lab VIEW software and PXI hardware as the test platform structure.4. HIL test platform achieve results, after the parameter setting, HIL test platform simulate the actual wind power system operation.As a result of this paper, doubly-fed wind power system HIL has completed basic function developed, and successfully applied on the product function validation on design phase, to achieve the desired goal.