Present Situation and Challenges of AC/DC Hybrid Large-Scale Power Grid Simulation Technology

doi:10.3969/j.issn.1000-7229.2015.12.001

Abstract

Abstract:

Along with the commissioning of UHV AC/DC transmission projects in China, the "strong DC links while weak AC grid" problem is outstanding, the interaction influences among AC/DC lines, multiple DC ones and sending/receiving ends are increasingly important, and the operation complexity of power grid is growing rapidly, so higher requirements on the scale, accuracy and speed of power grid simulation are put forward. From three aspects as power system modeling, multi-time-scale simulation and digital-analog hybrid real-time simulation, the current situation of simulation technology was explored, and the challenges from the development of AC/DC hybrid large-scale grid were analyzed. To increase the capability for large-scale power grid simulation, researches will focused on improving modeling accuracy of complex models such as DC system, renewable energy, FACTS （flexible alternative current transmission systems） and load, enlarging scale of electromagnetic simulation, and increasing efficiency of large-scale power grid simulation.

Key words: large-scale power grid simulation, system modeling, multi-time-scale simulation, digital-analog hybrid real-time simulation

CLC Number:

TM 743

LI Yalou, ZHANG Xing, LI Yongjie, CHEN Xujiang, WU Maoqian. Present Situation and Challenges of AC/DC Hybrid Large-Scale Power Grid Simulation Technology[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(12): 1-8.

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