广东电力2016，Vol.29Issue(6)：43-49,7.DOI:10.3969/j.issn.1007-290X.2016.06.008
一种双馈风电机组频率控制器
A Kind of Frequency Controller for Doubly-fed Induction Generators
摘要
Abstract
Decoupling control of double‐fed induction generators (DFIG) may cause output active power being unable to re‐spond to changes of power grid frequency and its maximum power point tracking (MPPT) control can not provide backup power for the power grid ,which may make generators hard to provide continuous active power support for system frequency regulating .Therefore ,this paper presents a kind of deloading running scheme based on diversities of different running con‐ditions which is able to realize active power backup by adopting pitch control at the time of high output while variable speed control and pitch control at the time of low output .Concept of participation factor is introduced and applied in design on frequency controller .This controller takes electromagnetic power of the unit ,rotor speed ,pitch angle and system frequency which can be correctly measured as observation objects for participating in real‐time frequency control .Theoretical and sim‐ulated analysis indicates that this frequency controller can ensure the unit participate in frequency regulation under all oper‐ating conditions and effectively improve frequency stability of the wind power grid‐connected system .关键词
双馈风电机组/虚拟备用/最优动能/参与因子/频率控制器Key words
doubly-fed induction generator (DFIG)/virtual reserve/optimal kinetic energy/participation factor/frequency controller分类
信息技术与安全科学引用本文复制引用
田新首,迟永宁,汤海雁,李庚银..一种双馈风电机组频率控制器[J].广东电力,2016,29(6):43-49,7.基金项目
国家电网公司基础性前瞻性科技项目 （）
