直驱永磁同步风力发电机的等效建模  

Equivalent Modeling and Description of Directly Driven Wind Turbine with Permanent Magnet Synchronous Generator

作　　者：肖园园[1] 李欣然[1] 张元胜[1] 马亚辉[1] 徐振华[1] 

机构地区：[1]湖南大学电气与信息工程学院,长沙410082

出　　处：《电力系统及其自动化学报》2013年第1期12-17,28,共7页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(50977023);湖南省自然科学基金重点资助项目(10JJ2043)

摘　　要：直驱永磁同步风力发电机(directly driven wind turbine with permanent magnet synchronous generator,D-PMSG)是分布式电源中的主要发电机型。通过分析D-PMSG的工作机理和运行特性;结合双环控制及功率追踪策略,分别构建了D-PMSG及含有D-PMSG的配电网络的仿真模型;将D-PMSG视为功率消耗为负的广义动态负荷,提出了基于恒定功率控制电流源的D-PMSG暂态等值电路,推导出了以三阶微分方程描述的机电暂态等效数学模型。通过不同程度故障下的仿真样本的总体测辩建模,从拟合程度、泛化能力及参数稳定性等方面验证了所提出模型的合理性和有效性。D-PMSG is the main type generator in distributed power. Through analyzing the characteristics of the D-PMSG, distribution system with D-PMSG was built using the dual-loop control and maximum power point tracker method. The D-PMSG could be seen as a generalized dynamic load with negative power consumption, then the transient equivalent circuit was put forward based on the constant power control current source, and the equivalent model describing by the third order differential equations was presented. Through different de- grees of fault, the reasonableness of the equivalent model is proved from the angles of generalization, fitting degree and parameters stability.

关 键 词：分布式电源 直驱式风力发电机 负荷建模 广义动态负荷 机电暂态等效模型 

分 类 号：TM614[电气工程—电力系统及自动化]