Simulation Study on Static Synchronous Compensator in Small-Step Simulator Based on FPGA

doi:10.3969/j.issn.1000-7229.2015.12.010

Abstract

Abstract:

Static synchronous compensator （STATCOM） is the important component of modern power system due to its capability of flexible reactive power support. However, small time-step simulation is required for STATCOM, because it consists of a great amount of power electronics switches. The small time-step simulation causes a substantial reduction in the simulation speed, which is the great challenge of real-time simulation. In order to meet the simulation requirements of synchronous compensator, improve the speed of small time-step simulation and realize the real-time simulation functions, this paper studied the small time-step real-time simulation system of STATCOM. The small time-step simulator is the special power electronic equipment simulator based on FPGA （field programmable gate array）, which consists of core computation block, element block, interfaces of small and large time-step networks, commutation block and other core modules, to ensure the real-time simulation. The small time-step real-time simulation method of STATCOM was studied with using two-level convertor and double loop current control model. Then, the implementation of the model in the small time-step simulator was studied, and the small-step switch model was proposed for power electronic device simulation. Finally, the experimental results of small time-step real-time simulation system of STATCOM were presented.

Key words: field programmable gate array（FPGA）, Static synchronous compensator, Small time-step, Real-time simulation Static synchronous reactive power compensation

CLC Number:

TM 743

MU Qing，ZHANG Xing，WANG Xiangxu，SUN Qian . Simulation Study on Static Synchronous Compensator in Small-Step Simulator Based on FPGA[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(12): 63-68.

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