Shunt Active Filter

تاریخ : ستمبر ۲۰۱٦ - مئی ۲۰۱۷

Abstract One of the biggest problems in Pakistan today is lack of energy (Power) and when there are losses in the way of that energy to costumers is like Add Insult to Injury. When we transmit power from power station to the load, because of the non-linear behavior of load fair chances to get non-sinusoidal current(harmonics). We have to find a way to overcome this problem of generation of harmonics due to non-linear load. Most know solution of this problem is: 1. Shunt Active filter 2. Passive filter Shunt Active filter (SAF) is the best among these two because it is cost effective, occupies less space and also less drawbacks as compare to Passive filters. We have a current sensor before non-linear load which senses the harmonic current and send it to SAF, then SAF generate anti-harmonic which is 180° to the harmonics produced due to non-linear load, then send these anti-harmonics to the main line which cancel the harmonics and non-linear load get a pure sinusoidal current wave.