Abstract

A Novel IUPQC for Multi-Feeder Systems Using Multilevel Converters With Grid Integration of Hybrid Renewable Energy System

Highlights

  • In the era of liberalization, the privatization of world electric energy market brought in a new level of competition in the energy supply business

  • When there is excess power generation from RES, the battery energy storage system (BESS) operates in buck mode and receives power and charging the batteries, during this condition, when the state of charge (SoC) of the battery reaches its maximum limit, in order to avoid damage to the batteries, the PV boost converter operates in off-MPPT mode

  • The results show that proposed interline unified power quality conditioner (IUPQC) can be satisfactorily implemented for grid integration of HRES

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Summary

INTRODUCTION

In the era of liberalization, the privatization of world electric energy market brought in a new level of competition in the energy supply business. Modern solutions for load related problems and imperfections in supply voltage include unified power quality conditioner (UPQC) [4]. In secondary selective systems the customer load is generally divided between two feeders and supplied from two different substations In this regard, it is considered that the effect of voltage variation in a feeder on the other feeder is negligible. In IUPQC [11] with two VSCs, one converter is connected in shunt with one feeder and another converter in series with another feeder In this configuration, current profile of the first feeder and the voltage profile of the second feeder are improved. A new topology of unified power-quality conditioning system, IUPQC with four VSCs is proposed in this paper This IUPQC is able to improve voltage and current profiles in multi-bus/multi-feeder systems simultaneously. The proposed IUPQC is implemented between grid and the HRES [17]

INTERLINE UNIFIED POWER QUALITY CONDITIONER
RESULTS AND DISCUSSIONS
CONCLUSION
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