Active power filters for line conditioning: a critical evaluation

Abstract

This paper presents a critical analysis of various topologies for power circuits used in power line conditioners designed to attenuate or remove disturbances in the electric power system. By defining a series of merit figures, it becomes possible to appraise the desirable qualities shown by the technical and economical aspects in each configuration. There is also a description of the basic lines for designing practical equipment. Finally, experimental results of a novel topology which reconfigurates to UPS operation in the case of a power line failure are shown to confirm the validity of the prospective method. Index Terms-Active power filter, active power line conditioner, harmonic distortion, power quality.

Power Injection System for Grid-Connected Photovoltaic Generation Systems Based on Two Collaborative Voltage Source Inverters

“…Although the cost could seem to increase due to the more complex topology and control and to the higher number of semiconductors needed, others factor related to cost should be taken into account: decrease in losses and so decrease in the size of the aluminium radiator, possibility of using ferromagnetic core inductors for filtering the greater fraction of the current (this inductors are about 30% less expensive than air core inductors [14]), possibility of using slower semiconductors (so cheaper devices) for the greater current fraction, and using lower rating high frequency semiconductors (because they operate with a lower current fraction). …”

Simulation of an uninterruptible power supply based on active power line conditioner in the Simulink environment

“…Для боротьби з наведеним вище явищем доцільно використовувати фільтро-компенсуючі перетворювачі (ФКП) паралельного типу [1][2][3][4]. Водночас, схемотехніка таких компенсаторів дозволяє, при додаванні системи заряду/розряду акумулятора, використовувати їх як джерело безперебійного живлення.…”

A Novel Intelligent FLC-VLLMS Based Shunt Active Filter for Power Quality Enhancement

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