电力系统自动化2016，Vol.40Issue(12)：179-183,5.DOI:10.7500/AEPS20151027003
换相失败预测控制对电压稳定性影响及优化措施
Impact of Commutation Failure Prediction Control on Voltage Stability and Its Optimization Measures
郑超 1周静敏 2李惠玲 1万磊 1孙华东1
作者信息
- 1. 中国电力科学研究院，北京市 100192
- 2. 华北电力大学电气与电子工程学院，北京市 102206
- 折叠
摘要
Abstract
Prevent commutation failure and maintain voltage stability are two important issues for high voltage direct current (HVDC) receiving end power grid.In order to reduce the threat of commutation failure,the actual HVDC control system is usually equipped with the module of commutation failure prediction.Predictive control will reduce the inverter trigger angle in the process of disturbance,and then affect the reactive power and the voltage stability of the receiving end power grid.Based on the control system used in the actual project,the simulation model of ultra-high voltage direct current (UHVDC) is established.Considering the function commutation failure module,the characteristics of reactive power nonlinear traj ectory of inverter station is revealed.The influence of parameters in the predictive module on the reactive power characteristic is analyzed.On this basis,the parameter optimization scheme is put forward for enhancing the reactive power characteristic of large disturbances in inverter station.Simulation results obtained from the receiving end power grid of UHVDC verify that voltage stability of the receiving end power grid can be significantly enhanced.关键词
高压直流/受端电网/换相失败/预测控制/无功轨迹/电压稳定/参数优化Key words
high voltage direct current(HVDC)/receiving end power grid/commutation failure/prediction control/reactive power characteristic traj ectory/voltage stability/parameters optimization引用本文复制引用
郑超,周静敏,李惠玲,万磊,孙华东..换相失败预测控制对电压稳定性影响及优化措施[J].电力系统自动化,2016,40(12):179-183,5.
