中国电机工程学报2017，Vol.37Issue(23)：6757-6767,11.DOI:10.13334/j.0258-8013.pcsee.170317
基于序阻抗的直驱风电场次同步振荡分析与锁相环参数优化设计
Analysis of Sub-Synchronous Oscillation of Full-converter Wind Farm Based on Sequence Impedance and An Optimized Design Method for PLL Parameters
摘要
Abstract
Recently,sub-synchronous oscillation (SSO) is observed in many direct drive permanent magnet synchronous generator (D-PMSG) based wind farms integrated in a weak AC grid in the northwest of China.To investigate the mechanism and characteristics of this emerging issue,firstly,the positive and negative sequence impedance model of a typical D-PMSG based on the harmonic linearization theory was established in this paper.After that,the impedance of the D-PMSG was measured by the method of hardware control in the loop,and the Nyquist stability criterion was used to analyze the stability of the D-PMSG connected to a weak AC grid.In addition,a kind of optimized design method for phase-locked loop control parameters was provided to suppress the sub-synchronous oscillation.Finally,a detailed electromagnetic transient model of a wind farm with 110 units of 1.5MW D-PMSGs was built on the RT-lab real-time simulation platform.The results of simulation verified the correctness of the theoretical analysis.关键词
直驱风电机组/阻抗建模/弱交流电网/次同步振荡/锁相环Key words
direct drive permanent magnet synchronous generator/impedance modeling/weak AC grid/sub-synchronous oscillation/phase-locked loop分类
信息技术与安全科学引用本文复制引用
张冲,王伟胜,何国庆,李光辉,汪海蛟,田元冶..基于序阻抗的直驱风电场次同步振荡分析与锁相环参数优化设计[J].中国电机工程学报,2017,37(23):6757-6767,11.基金项目
国家重点研发计划项目(2016YFB0900104) （2016YFB0900104）
国家电网公司科技项目(NYB17201600336).Project Supported by National Key Research and Development Programme (2016YFB0900104) （NYB17201600336）
Key Technology Project of State Grid Corporation of China (NYB17201600336). （NYB17201600336）
