现代电力2018，Vol.35Issue(1)：78-83,6.
基于广域信息的电压稳定在线评估与无功电压协调控制方法
Online Voltage Stability Assessment and Voltage-reactive Power Coordinated Control Method Based on Measuring Information of Phasor Measurement Unit
摘要
Abstract
To improve system global voltage stability and en-sure operation security of power system,it is urgent to study online real-time monitoring of system voltage level and the dynamic voltage-reactive power coordinated control meth-od.In this paper,by using voltage stability index that has i-deal accuracy and linearity based on the measurement infor-mation of PMU,the multi-objective optimal power flow model is proposed by considering system network loss and voltage stability margin based on synthetical membership method.This model can effectively improve the global volt-age stability by assigning higher optimization priorities for branches in low voltage stability area.Meanwhile,the weight indexes of objective function are determined to dis-tinguish the important degree of system economic efficiency and voltage security according to different system operation status.In the end,simulations are carried out in IEEE-14 and IEEE-57 bus systems and the result verifies the correct-ness and the effectiveness of the proposed voltage and reac-tive power control model and strategy.关键词
无功电压控制/电压稳定/电压稳定指标/广域测量系统/最优潮流Key words
voltage-reactive power control/voltage stability/voltage stability index/phasor measurement unit/optimal power flow分类
信息技术与安全科学引用本文复制引用
张昭,纪云博,范佳琪,赵灿..基于广域信息的电压稳定在线评估与无功电压协调控制方法[J].现代电力,2018,35(1):78-83,6.基金项目
国家电网公司科技项目(DZ71-14-006) （DZ71-14-006）
