Research on Electromechanical-electromagnetic Hybrid Modeling and Simulation of UHVDC in Jilin Power Grid by ADPSS

Abstract

In order to accurately analyze Jilin power grid with UHVDC, this paper builds the electromagnetic transient model of Jilin HVDC system and the electromechanical model of the rest of Jilin power grid based on the winter heavy load of Jilin power grid in 2018 with full digital real-time simulation platform power system. Based on the electromechanical- electromagnetic hybrid model built up, the steady state simulation of Jilin HVDC is carried out. The transient simulation results of electromechanical transient model and electromechanical-electromagnetic hybrid model are compared in the case of bipolar blocking. The simulation results show that the electromechanical electromagnetic hybrid model can effectively reflect the electromagnetic transient characteristics of the UHVDC transmission system in Jilin, and is suitable for studying the very complex and fast transient process in the DC system. The hybrid simulation model lays a foundation for the study of the impact of Jilin UHVDC.