摘要风力发电是一种新型的能源,是取之不尽用之不竭的,因为它取之于自然,但是却对自然没有任何的危害,所以风能将会拥有辉煌的前景。本文在前人研究的基础上,采用了双馈电机的新型空载并网励磁控制策略,对双馈电机的准同期空载并网励磁控制器进行了研究。41595
文中对双馈风力发电励磁控制系统进行了比较全面的分析和研究。首先在分析风力机特性和双馈异步发电机的工作原理的基础上,运用矢量变换技术,通过坐标变换给出了双馈电机发电系统在两相静止坐标系下的数学模型和基于定子磁链定向的同步旋转坐标系下的动态数学模型。然后分析研究了双馈电机的准同期并网控制策略,确立了微调频率调节机端电压相角的准同期并网控制方法。然后设计了双馈发电机励磁控制系统的硬件。 毕业论文关键词:风力发电 变速频 双馈感应发电机 定子磁链定向
Doubly-fed wind power control system based on single chip design and research
Abstract
Wind power is a kind of new energy sources,and it is inexhaustible, Because it comes from nature.there is no harm to nature, so the wind will have brilliant prospects.On the basis of previous studies, this essay adopted a new type of doubly-fed motor no-load grid-connection excitation control strategy and did a research on doubly-fed motor penecontemporaneous no-load grid-connection of excitation controller.
This essay has carried on the comprehensive analysis and researched on the doubly-fed wind power generator excitation control system. First of all, based on the analysis of wind turbine characteristics and working principle of doubly-fed induction generator,Using vector transform technology, the doubly-fed motor power generation system is given by coordinate transformation in the mathematical model of the two-phase static coordinate system and based on the stator flux dynamic mathematical model of the synchronous rotating coordinate system. Then we analyzed the quasi-synchronizing parallel control strategy of doubly-fed motor,we established the fine tuning frequency regulating voltage of the machine quasi-synchronizing parallel control method of phase Angle.And then we designed the doubly-fed generator excitation control system hardware.
Key words: Wind power generation Variable-speed constant-frequenc Doubly-fed induction generator
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