Abstract
This paper presents the analysis of voltage flicker for an industrial power system by considering the stochastic load modeling of arc furnaces. The field measurement of power consumption has been performed to identify the variances of injection current at each load bus. The mean value and standard deviation of the voltage flicker are then solved by stochastic load flow analysis with the fluctuation of reactive power consumption by arc furnaces. To investigate the mitigation of voltage flicker by static var compensator, the mathematical models of SVC has been included in the computer simulation to find the adaptive reactive power compensation. It is found that the variation of voltage flicker at each bus can be determined accurately by the proposed stochastic load flow analysis and the quick response of SVC to the bus voltage change can effectively reduce the voltage flicker.
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