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The selection of reactive power compensation and higher harmonic filtration method for an exemplary industrial plant was presented in the paper. Based on measurements carried out on the real object, four solutions were proposed i.e. a passive filter, a modified passive filter and an active filter without and with a higher harmonic filter. For the proposed solutions the proper simulations were performed...
The work presents conception of 1-phase shunt Active Power Filter (APF) based on the modified sigma-delta modulator (SDM). The modification depends on including in SDM the dynamic hysteresis comparator. Thank to this feature the resolution of SDM output bit stream is, theoretically, unlimited. As result it is possible to precise mapping of the APF input (power grid) current in the reference signal...
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