摘要
随着风电机组大规模接入电网,给电网安全带来了极大挑战。新的电网导则要求接入电网的风电机组必须具有故障穿越能力。撬棒(Crowbar)保护是目前受到广泛关注的故障穿越技术之一。因此,这里先后分析了Crowbar保护实现双馈机组故障穿越的原理、控制及其旁路电阻的确定。最后,通过实验平台验证了Crowbar保护在不同电压跌落故障情况下实现双馈机组故障穿越的有效性。
With the large penetration of wind energy in power system, the influence on the system stability has re- ceived much attention.As a result, new requirements that the turbine is allowed to disconnect during voltage dips have been set.The analysis of Crowbar circuit control for fault ride-through of wind turbine with doubly-fed induction gene- rator is presented, and finally study cases are investigated based on the experimental platform.
出处
《电力电子技术》
CSCD
北大核心
2013年第10期25-26,54,共3页
Power Electronics
基金
上海市科学基金(11dz1200204)
国家高技术研究发展计划(863计划)(2012AA050203)~~
关键词
风电机组
双馈电机
故障穿越
wind turbine
doubly-fed induction generator
fault ride-through
