考虑开关管开路故障的三电平STATCOM建模与硬件在回路实时仿真

doi:10.19595/j.cnki.1000-6753.tces.180090

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Abstract Amodeling method for real-time simulation is proposed, which is aiming at the modeling for hardware-in-the-loop (HIL) simulation of a three-level static synchronous compensator (STATCOM). The operation of STATCOM under open-circuit fault condition was analyzed.According to the operating status of the system, the fault model was decomposed into a number of fault sub-models, and the system state variables were used to determine the switching conditions of the sub-models. Then, a DC-side neutral-point potential compensation algorithm was proposed to compensate for the cumulative error of numerical integration in real-time simulation and improve the stability of the model. Finally, the real-time simulation of STATCOM under fault condition was built based on adSPACE platform. The forward Euler method was used to make the fault model running in real-time on the FPGA board, and the simulation step wasreduced to 1μs. The simulation results show the validity of the proposed fault modeling method and the accuracy of thereal-time simulation model.

Key words： Three-level STATCOM fault modeling neutral-point potential compensation hardware-in-the-loop real-time simulation

Received: 16 January 2018 Published: 31 January 2019

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TM743

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	Li Haoyang
	LiZe
	Guo Yuanbo
	Zhang Xiaohua

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Li Haoyang,LiZe,Guo Yuanbo等. Modeling and Hardware-in-the-Loop Real-Time Simulation of Three-Level STATCOM Considering Switch Open-Circuit Faults[J]. Transactions of China Electrotechnical Society, 2019, 34(3): 552-561.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180090 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I3/552

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