摘要
直驱永磁同步发电机具有直接驱动、结构简单、效率较高等优点,因而成为目前兆瓦级风电机组的主流机型之一,且市场份额有逐步扩大的趋势。以直驱式永磁风力发电系统为主要研究对象,在直驱永磁同步风力发电机(DDPMG)的运行特性基本原理基础上,建立包括风力机、直驱式永磁同步发电机及机侧变换器在内的整个系统的数学模型。应用定子磁链定向的方法,对系统进行矢量控制策略的研究,运用Matlab/Simulink建立了直驱永磁同步发电系统仿真模型,对风速阶跃变化时机组运行情况进行了仿真,结果验证了所建模型的合理性及控制策略的正确性和可行性。
Direct drive permanent magnet synchronous generator have the advantages of direct drive, simple structure, high efficiency and so on, which make it become one of mainstream models within MW wind turbine. We study the direct drive permanent magnet wind power generation system, based on the principle of the operating characteristics of direct drive permanent magnet synchronous wind generator （ DDPMG ）. We establish mathematical model of the whole system, including wind turbine, direct drive permanent magnet synchronous generator and machine side converter. We further apply the method of stator flux orientation to vector control strategy, and build the simulation model of direct drive permanent magnet synchronous generator system with Matlab when wind speed changes by step. The results verify the reasonableness of the model and the correctness and feasibility of the control strategy.
出处
《自动化博览》
2013年第3期114-116,共3页
Automation Panorama1
关键词
风力发电
直驱式
永磁同步风力发电机组
矢量控制
Wind power generator
Direct drive
Permanent magnet synchronous wind power generator
Vector control
