摘要
目前分频风电系统(fractional frequency wind power system,FFWPS)作为海上风力发电系统研究的一个新潮流,已经引起国际学术界的广泛注意。国外学者对分频风电系统应用于用于海上风电的经济性、技术可行性以及关键设备可行性等方面进行了研究,这说明分频风力发电系统是一种具有竞争力的海上风力发电系统方案。该文针对分频风电系统的结构特点,提出一种适用于分频风电系统风机并网的结构和方法,该并网方法可实现分频风电系统中风机的逐台并网,具有经济和技术上的优势。介绍分频风电系统并网主电路和控制电路的设计,以及所搭建的分频风电系统多机并网实验平台,通过实验证明所提出的并网结构和方法的可行性和有效性。
Fractional Frequency Transmission System （FFTS） offers a competitive choice for offshore wind power integration and a wind farm integrated via FFTS is named Fractional Frequency Wind Power System （FFWPS）. At present, as a new trend for offshore wind power system, FFWPS has caused widespread attention of international academic circles. The economical feasibility, technical feasibility and key equipment of FFWPS applied in offshore wind power system have been studied by foreign scholars. This shows that FFWPS is a competitive offshore wind power system solution. According to the structure characteristics of FFWPS, a novel grid connection structure of FFWPS was proposed and introduced. The wind turbines in FFWPS can be connected to the fractional frequency grid one by one through the proposed grid connection method. The grid connection technology has economic and technological advantages. The main circuit and control circuit were designed in this paper, and the grid connection experimental platform of FFWPS was also built. The feasibility and effectiveness of the proposed grid connection method was verified through the experiment.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2015年第5期1089-1096,共8页
Proceedings of the CSEE
关键词
分频输电
分频风电
并网
交直交换流器
LCL滤波器
fractional frequency transmission system（FFTS）
fractional frequency wind power system （FFWPS）
grid connection
AC-DC-AC converter
LCL filter
