Power Quality Enhancement in Variable Frequency Drive using Hybrid Filters- An Shunt Passive and Series Active Combination
نویسنده
چکیده
This paper presents a new Hybrid Filter for compensating voltage/current harmonic in Variable Frequency Drives (VFD). It is a combined system of Shunt Passive Filter (SPF) and a Series Active Filter (SAF) is a cost-effective and practical way of mitigating both current and voltage harmonics generated in a power system due to the presence of non-linear loads. In this paper a practical VFD system installed for the ID fan in SAIL has been chosen as the non-linear load for which a hybrid filter comprising of a shunt passive and series active filter is employed for improving the power quality at the source end. The design of passive and series active filters have been done from scratch; their modeling has been taken up in MATLAB / Simulink environment and the simulation has been carried out under varying load conditions.
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