Research on Modular Multilevel Converter Suitable for Direct-drive Wind Power System
- 作者：Yan Gangui ; Liu Jigang ; MU Gang ; Liu Yu ; Liu Yang ; Song Wei
- 关键词：modular multilevel converter ; direct-drive wind power system ; simulation
- 刊名：Energy Procedia
- 出版年：2012
- 期刊代码：P136_18766102
- 类别：pw
- 出版时间：2012
- 卷：17
- 期：Complete
- 页码：1497-1506
- 文件大小：380 K
摘要
This paper studies Modular Multilevel Converter (MMC) which is applied to Direct-drive wind power system. With the actual situation of wind power generation system, there is a control method presented. It is appropriate for an arbitrary number of voltage levels and the frequency of the AC side waving in a larger changing range. The method of determining the capacitance parameters in submodules is also designed. The converter model is built in PSCAD/EMTDC simulation platform; the simulation results validate the rightness and feasibility of the control method.