风轮机输出特性模拟系统的实现

Realization of simulated system of the output characteristic of the wind turbine

针对风轮机输出特性模拟系统展开了的软硬件设计及应用。采用VC++编程提供人机交互界面,输入风速时变数据,会得到理想的风轮机的转速、功率、转矩曲线。利用交流异步电机变频调速系统,模拟现场风况并带动风轮的转动,建立起一个模拟实验平台,提供了在实验室内进行变速恒频等风力发电技术研究工作的条件。应用所设计的风轮输出特性模拟系统,拖动30kW的风力发电机进行实验,从而验证了变频调速异步电机模拟风轮输出特性的方案的可行性与实用性。

The design and the application of the software and hardware of the simulated system of the wind turbine＇s output characteristic are done. A mutual interface between the man and the computer programmed by VC＋＋ is provided,when imputing the data of instantaneous wind speed,the unearthly curves of a wind turbine＇s rotate speed,power and torque are drawn. The conversion frequency and regnlating speed system of AC asynchronous motor is used to simulating the locale situation of the wind,which turns the wind wheel and sets up a simulated experimental platform in lab,it offers the conditions of research work of wind generator technology such as shift speed and constant frequency and etc. in lab. A experiment is done that using the simulated system of the wind turbine＇s output characteristic drives a 30kw wind driven generator,and the feasibility and practicality of the project is validated that a asynchronous motor of frequency conversion and regulating speed can simulate the output t characteristic of the wind turbine.