Parallel Simulation of Multi-Terminal MMC-HVDC System Based on PSCAD/EMTDC

doi:10.3969/j.issn.1000-7229.2016.02.002

Abstract

Abstract:

For the multi-terminal MMC （modular multilevel converter）-HVDC system and DC grid, the traditional electromagnetic transient simulation programs based on serial structure have been unable to meet the demand of the actual calculation, so it is necessary to adopt parallel computing technology. As electromagnetic transient simulation software for power system, PSCAD/EMTDC is widely used in the world, and the latest version has full support for parallel computing. Through large model split and multi-threaded operation, this software can solve the problems of cannot being simulated or low simulation efficiency due to too large model, which can provide the possibility to achieve the fast simulations of multi-terminal MMC-HVDC system and DC grid. We analyze the operation mechanism and function and of PSCAD/EMTDC in detail, introduce and research the parallel computing function in its new version. Then we construct the model for the simulation test and discuss the technique of parallel computing. The simulation results show that the parallel computing function can greatly reduce the simulation time of large scale power system and effectively improve the efficiency of simulation analysis.

Key words: modular multilevel converter(MMC), parallel computing, electromagnetic transient simulation, multi-terminal MMC-HVDC system

CLC Number:

TM 743

XUE Yinglin, WU Fangjie, ZHANG Tao, YANG Yiming, LIU Gaoren, XU Zheng. Parallel Simulation of Multi-Terminal MMC-HVDC System Based on PSCAD/EMTDC[J]. Electric Power Construction, 2016, 37(2): 10-17.

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