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A direct calculation algorithm for digital measurement of equivalent voltage flicker
M.T. Chen, Chien‐Min Lu, Chun-Wei Huang
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Abstract
In a power system, the voltage fluctuation is the primary cause of lamp flicker, therefore, it is also termed voltage flicker. Since voltage flicker is perceptible and sometimes irritable, it has been much concerned by the electric power company and the customer. In this paper, the authors propose a direct calculation algorithm for digital measurement of the equivalent voltage flickers, equivalent 10 Hz flicker ({Delta}V{sub 10}) and instantaneous flicker sensation (I{sub fl}). The performances of the algorithm are estimated and compared with these of the other algorithms based on fast Fourier transform by simulations, they include accuracy, computation time, flicker frequency response and effect of system frequency deviation.