电力系统自动化2024，Vol.48Issue(16)：123-131,9.DOI:10.7500/AEPS20231210002
计及高比例新能源多种控制方式及运行约束的连续潮流
Continuous Power Flow Considering Multiple Control Modes and Operational Constraints of High Proportion of Renewable Energy
摘要
Abstract
The voltage stability problem of power grids with high proportion of renewable energy is prominent,and continuous power flow is an important tool for voltage stability analysis.The current continuous power flow of power grids with voltage source converter(VSC)power supply does not fully consider the various control modes and operational constraints of the VSC,resulting in insufficient accuracy of voltage stability margin calculation.In this paper,a continuous power flow model and calculation method considering the output current constraint and internal potential constraint of the VSC with renewable energy integration,constant voltage control and reactive power-voltage droop control of grid-forming renewable energy and constant reactive power control of grid-following renewable energy are proposed,and the switching logic of control mode and bifurcation point type identification method caused by constraints are given.The results of a case with the modified IEEE 39-bus system show that the proposed model and algorithm improve the applicability of the traditional continuous power flow method to the static voltage stability analysis of power grids with high proportion of renewable energy.关键词
高比例新能源/电压稳定性/潮流/电压源换流器/切换逻辑/控制方式Key words
high proportion of renewable energy/voltage stability/power flow/voltage source converter/switching logic/control mode引用本文复制引用
赵晋泉,汤奕,党杰,崔挺,陈道君..计及高比例新能源多种控制方式及运行约束的连续潮流[J].电力系统自动化,2024,48(16):123-131,9.基金项目
国家电网有限公司总部科技项目(5100-202323008A-1-1-ZN). This work is supported by State Grid Corporation of China(No.5100-202323008A-1-1-ZN). （5100-202323008A-1-1-ZN）
