基于Hopf分岔的电力系统HVDC稳定直流分段控制策略

HVDC stability DC block control strategy based on Hopf bifurcation in power system

为有效处理电力动态失稳现象,提出基于Hopf分岔的电力系统HVDC稳定直流分段控制策略。首先,基于IEEE 14电力测试系统并利用HVDC整流器进行电力3段系统构建,然后利用代数方程实现系统模型表示;其次,对3段系统利用Hopf雅可比分岔点理论进行灵敏度研究,并选用HVDC工作点进行线路电流参数调整,实现最佳参数的线性可控确定,获得电力系统直流分段的稳态控制效果;最后,实验对比结果显示,所提策略可得到最佳操作点,可实现Hopf分岔过程的阻尼振荡和稳定裕度提升,从而大幅提升系统的稳态控制效果。

In order to solve the problem of dynamic instability of power system, the HVDC stability DC block control strategy based on Hopf bifurcation in power system is proposed. Firstly, based on IEEEI4 bus system, the 3-segment of power system are constructed by using HVDC rectifier, and the algebraic equation model of the system is given;