2005, Volume 7, Issue 8
Strategic Study of CAE >> 2005, Volume 7, Issue 8
Research of an Improved Bridge Type Solid-state Current Limiter
School of Electrical & Automation Engineering, Tianjin University, Tianjin 300072, China
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Abstract
As the expanding of power system capacity, the technologies of short circuit current limiting in power systems have been concerned greatly. This paper introduces a novel bridge type solid state current limiter and a new control strategy is proposed. The characters and operating principle of a novel bridge solid-state current limiter has been developed in detail. Simulation based on Matlab/Simulink is analysed and a laboratory set-up in which the thyristor is controlled by a single chip computer is tested. The results show that the FCL mode is successful in both computer simulation and laboratory test in limiting the fault currents.
Keywords
short circuit current limiter ; novel bridge type circuit ; simulation based on Matlab/Simulink ; dynamic-mode experiment
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