Author(s): Mr Pajan Gangele, Mr. Shrikant patel
Comparison of Active and Passive Filter Improvement of Power Quality in Three Phase Ac System a Power System Harmonics Voltage Stability and Power Quality Improvement a coordinated control of power l ine the increasing of nonlinear loads in utility line, harmonic problem has been concerned ever more than before. Those nonlinear loads, such as diode rectifiers, thyristor converters and some electronic circuits, on industrial, commercial and residential equipments, active power filters operate as a controllable current source. Passive filters are consisted of tuned series L-C circuits. These filters should be applied as close as possible to the off ending loads, preferably at the farthest three phase point of distribution. The necessity to deliver cost effective energy in the power market has become a major concern in this emerging technology era. Therefore, establishing a desired power condition at the given points are best achieved using power controllers such as the well-known High Voltage Direct Current (HVDC) and Flexible Alternating Current Transmission System. Keywords : Active and Passive Filter, HVDC, tuned series L-C circuits.