Active Power Line Conditioner

Widespread use of non-linear loads in industrial, commercial and domestic facilities cause harmonic problems. Active Power Line Conditioner (APLC) is designed and implemented for power quality improvements in terms of current harmonics and reactive-power compensation in the distribution power system. The performance of the APLC depends on the design and characteristics of the controller. The objective of this book is to find a suitable control strategy for reference current extraction as well as PWM-VSI current controller. PI / PID / FLC / PI-FLC, Fryze power theory, proposed instantaneous real-power theory, proposed sinusoidal extraction controller and modified-synchronous reference frame theory methods are utilized for extracting reference current. Furthermore, indirect PWM-current control (triangular-carrier / triangular-periodical current controller, space vector modulation controller, fixed-Hysteresis Current Controller (HCC), adaptive-HCC and adaptive-fuzzy-HCC) approach isapplied to generate switching pulses of the PWM-inverter.