Title: A novel adaptive-fuzzy hysteresis current controller-based active power line conditioners for power quality enhancement
Authors: P. Karuppanan; Kamala Kanta Mahapatra
Addresses: Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology, Allahabad, 211 004, India ' Department of Electronics and Communication, National Institute of Technology, Rourkela, 769008, India
Abstract: This paper presents a three-phase shunt active power line conditioner (APLC) for harmonics and reactive power compensation to enhance the power quality. The compensation process is based on sinusoidal extraction control method, which consists of positive-sequence voltage detector to regulate the distorted supply voltage and instantaneous real-power for fundamental component extraction from the distorted line current. The voltage source inverter (VSI)-based active filter switching pulses is generated through adaptive fuzzy hysteresis current controller (HCC). For the adaptive-fuzzy-HCC, bandwidth is calculated without precise knowledge of the APLC parameters (interface inductor and DC-link voltage), the hysteresis band value can be implemented with a fuzzy logic. A comparative assessment of fixed-HCC, adaptive-HCC and adaptive-fuzzy-HCC is carried out. The shunt APLC system is validated through extensive simulation under distorted supply voltage and non-linear load conditions.
Keywords: active power line conditioners; APLC; sinusoidal extraction control; positive-sequence voltage detector; adaptive control; adaptive HCC; fuzzy HCC; hysteresis current control; power quality; adaptive control; fuzzy control; harmonics; reactive power compensation; voltage source inverter; VSI; active filter switching pulses; hysteresis band; fuzzy logic.
International Journal of Power Electronics, 2013 Vol.5 No.3/4, pp.262 - 279
Accepted: 26 Jun 2013
Published online: 06 Oct 2013 *