Abstract
Unified power flow controller (UPFC) is a device which controls active power and reactive power in order to enhance the static and stability of power system. In power system analysis software (PSD-BPA), the model of UPFC is not perfect and the simulation model of local grid in MATLAB/Simulink can be built precisely. Thus, this paper introduces a simulation method of combining MATLAB/Simulink and PSD-BPA to simulate the power flow of local grid. First, extracting the parameters of the local power grid with UPFC accurately was important. Second, the extracting parameters were imported to MATLAB/Simulink to build the simulation model of local power system and then the process of simulation was carried out. Last, the contrastive analysis of MATLAB/Simulink simulation results and the power flow simulation of PSD-BPA verifies the correctness of this model. Then, the model of power system with UPFC worked well during the abnormal operating conditions of power network, while an actual example was introduced.
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