Abstract: In this paper, a new topology is developed for a three-phase four-wire (3P4W) distribution system utilizing a zig-zag transformer along with three-phase threewire (3P3W) Unified Power Quality Conditioner (UPQC).In this proposed topology the neutral point of the star connected transformer, used for the connection of series active power filter (APF) of 3P3W UPQC, is utilized as a fourth...

This paper explains a new proposal for the placement, integration, and control of unified power quality conditioner (UPQC) in distributed generation (DG)-based grid connected/autonomous micro grid/micro generation (μG) system has been presented here along with fuzzy logic controller. Here we using fuzzy logic controller instead of using other controllers. The DG converters (with storage) and th...

The unified power quality conditioner (UPQC) is being used as a universal active power conditioning device to mitigate both current and voltage harmonics at a distribution side of power system network. This paper emphasis enhancement of power quality by using UPQC with fuzzy logic controller (FLC) and proportional-integral (PI) controller. The main purpose of the proposed (FLC) is capable of pr...

This paper presents a novel flexible control strategy for Unified Power Quality Conditioner (UPQC), which achieves more flexibility in compensation of power quality disturbances as compared to the existing methods. The proposed control strategy provides priority-based compensation as well as full and standard-based compensation considering the rating of series and shunt parts of a UPQC. The pri...

A linearised model of the power system with the Electrical Arc Furnace (EAF) and the Unified Power Quality Conditioner (UPQC) has been used in the frequency domain for finding an optimum control strategy of the UPQC. The analysis indicates that the most effective may be such an application of the UPQC where the parallel Active Filter (AF) compensates the whole reactive power consumed by the EAF...

This paper presents an analysis on the unified Power quality conditioner (UPQC) to improve the electric power quality at distribution levels. Conventional power quality mitigation equipment is a providing to be poor for an increasing number of applications. Different approaches in compensation and recent developments in fields. Single modern and very promising solution that deal with both load ...

In the last years, the wind power generation incorporated into standard grids has been increased significantly. This situation forced the revision of grid connection code requirements, to guarantee the reliability in systems with high wind power penetration. These strategies were implemented using a Unified Power Quality Compensator (UPQC). A model of wind farm with induction generators connect...

Differential evolution DE algorithm is used to determine optimal location of unified power quality conditioner UPQC considering its size in the radial distribution systems. The problem is formulated to find the optimum location of UPQC based on an objective function OF defined for improving of voltage and current profiles, reducing power loss and minimizing the investment costs considering the ...