【作者】 白洁；

【导师】 刘其辉；

【作者基本信息】 华北电力大学（北京） ， 电力系统及其自动化， 2010， 硕士

【摘要】 在能源消耗日益增长以致濒临枯竭,环境污染加剧的今天,作为可再生绿色能源的风能受到世界各国的普遍重视,风力发电技术也成为研究的热点。变桨距功率控制技术是当今大型风电机组的关键技术之一,决定着风电机组的效率和稳定性。风力发电技术的研究,需要大量的实验,如何在实验室条件下进行风力发电实验,就成了一个亟待解决的问题。论文首先在分析风力机的基本理论和变桨距功率控制原理的基础上,提出了变桨距功率控制策略,通过建模仿真验证了该策略的合理性。然后,在分析总结既有的风力机特性模拟方案优缺点的基础上,提出了一种基于异步电动机直接转矩控制的风力机特性模拟方案,通过建模仿真验证了该方案的有效性。最后基于该方案开发了一套风力机特性模拟实验平台,为今后的实验研究打下了良好的基础。更多还原

【Abstract】 Now with energy resources being consumed and environment empoison being serious, wind power is paid great attention to by many countries as renewable resource. The technology of wind power also becomes research hotspot. Pitch-control which determines the efficiency and stability of the wind power system is one of the key technologies of wind power. It needs many experiments to research wind power technology, how to do experiments under laboratory condition is an important problem. In the thesis, on the basis of analyzing the basic theories of wind turbine and the principle of pitch-control, a control strategy is proposed and verified according to simulation. Then after doing analysis and demonstration of previous methods of simulation of wind turbine characteristic, a new method which is based on DTC of asynchronous is proposed. According to simulation, the effectiveness of the method is verified. Finally, a simulator test rig of wind turbine characteristic based on the method is developed, and lays a foundation for the experiments and research in the future.更多还原