Title :
Variable var compensator circuits
Author :
Marouchos, Christos ; Darwish, M.K. ; El-Habrouk, M.
Author_Institution :
Higher Tech. Inst., Nicosia
fDate :
9/1/2006 12:00:00 AM
Abstract :
A family of two reactive-power compensator circuit is presented. A general model of some basic linear elements and switching function blocks is developed first. Then the two proposed compensator circuits are derived from the generalised model. The proposed circuits are capable of supplying leading as well as lagging reactive currents in stepless variation without using an inverter configuration. The switching frequency is in the range of 2.5 kHz and the largest capacitor utilised does not exceed 60 muF. The generated reactive current, in either the leading or lagging modes, contains less than 2% total harmonic distortion
Keywords :
harmonic distortion; power capacitors; power conversion harmonics; power supply circuits; reactive power control; static VAr compensators; switching convertors; 2.5 kHz; VAR compensator; capacitor; linear element; reactive current; reactive-power compensator; switching function; total harmonic distortion;
Journal_Title :
Electric Power Applications, IEE Proceedings
