This paper presents a hybrid active power filter for a three phase four wire distribution system. The scheme consists of a zigzag transformer, single phase active power filter connected in series with the utility neutral and a coupling capacitor connected in series with a voltage source converter of the active power filter (APF). The addition of coupling capacitor permits the reduction in DC li...

Active power filter (APF) has now become a mature technology for harmonic and reactive power compensations in two-wire (single phase), three-wire (three phase without neutral), and four-wire (three phase with neutral) ac power networks with nonlinear loads. This paper presents a study on three different adaptive algorithms for active power filtering applications. These algorithms are adaptive l...

Currently, most photovoltaic (PV) sources are connected to the grid. This research discusses single-phase on-grid PV inverters. A two-stage inverter which consisted of a boost-type DC-DC converter and inverter, was used. In addition, improved power quality deliver maximum power. The entire generated by be delivered PCC, in PCC also improved. this system, grid only drew or supplied active P&O al...

K.Srinivas, Dr. S S Tulasi Ram Assistant Professor, Dept. of EEE, JNTUH College of Engg, Jagityal, Karimnagar, India 1 Professor, Dept. of EEE, JNTUH College of Engg, Hyderabad, India 2 ABSTRACT: In this paper the authors proposed a control algorithm for single phase active power filter to work under non stiff source. The method proposed compensate non linear load by improving the power factor ...