New Configuration and Transient Management Control Strategy for U-VSC-HVDC with Filter

This paper presents a novel system configuration for voltage source converter (VSC)-based high-voltage direct current (HVDC) transmission connected to a large-scale offshore wind power plant (WPP). We prove that the active power through a branch (referred to as branch active power) in a power system is a continuous function of the bifurcation parameter in the closed interval from an initial parameter value to the bifurcation-point value of a saddle-node bifurcation (SNB) or limit-induced bifurcation (LIB) of the power flow equation (PFE). These results can be used to qualitatively evaluate and classify the state of power system operation conditions in terms of voltage stability and is evaluated using MATLAB.