Journal ArticleDOI
A New Control Philosophy for a Unified Power Quality Conditioner (UPQC) to Coordinate Load-Reactive Power Demand Between Shunt and Series Inverters
Vinod Khadkikar,Ambrish Chandra +1 more
TLDR
In this paper, the authors proposed a new functionality of UPQC in which both the shunt and series APFs supply the load-reactive power demand, which not only helps to share the load reactive power demand but also helps to reduce the SHunt APF rating.Abstract:
This paper presents a novel philosophy to compensate the load-reactive power demand through a three-phase unified power quality conditioner (UPQC). Most of the UPQC-based applications show the dependency on shunt inverter for load-reactive power compensation, whereas the series inverter is always looked as controlled voltage source to handle all voltage-related problems. This paper proposes a new functionality of UPQC in which both the shunt and series APFs supply the load-reactive power demand. This feature not only helps to share the load-reactive power demand, but also helps to reduce the shunt APF rating, and hence, the overall cost of UPQC. This results in better utilization of the existing series inverter. The theory and complete mathematical analysis termed as ldquopower angle control (PAC)rdquo is presented. The simulation results based on MATLAB/Simulink are discussed in detail to support the concept developed in the paper. The proposed approach is also validated through experimental study.read more
Citations
More filters
Journal ArticleDOI
Advanced Control Architectures for Intelligent Microgrids—Part I: Decentralized and Hierarchical Control
TL;DR: Decentralized, distributed, and hierarchical control of grid-connected and islanded microgrids that mimic the behavior of the mains grid is reviewed.
Journal ArticleDOI
Advanced Control Architectures for Intelligent Microgrids—Part II: Power Quality, Energy Storage, and AC/DC Microgrids
TL;DR: The use of static synchronous compensator in grid-connected microgrids is introduced in order to improve voltage sags/swells and unbalances and the coordinated control of distributed storage systems and ac/dc hybrid micro grids is explained.
Journal ArticleDOI
Enhancing Electric Power Quality Using UPQC: A Comprehensive Overview
TL;DR: In this article, a comprehensive review on the unified power quality conditioner (UPQC) to enhance the electric power quality at distribution levels is presented, which is intended to present a broad overview on the different possible UPQC system configurations for single-phase and three-phase (threewire and four-wire) networks, different compensation approaches, and recent developments in the field.
Journal ArticleDOI
Synchronous-Reference-Frame-Based Control Method for UPQC Under Unbalanced and Distorted Load Conditions
Metin Kesler,Engin Özdemir +1 more
TL;DR: The simulation results based on Matlab/Simulink are discussed in detail to support the SRF-based control method presented in this paper and are validated through experimental study with the UPQC hardware prototype.
Journal ArticleDOI
UPQC-S: A Novel Concept of Simultaneous Voltage Sag/Swell and Load Reactive Power Compensations Utilizing Series Inverter of UPQC
Vinod Khadkikar,Ambrish Chandra +1 more
TL;DR: In this paper, a new concept of optimal utilization of a unified power quality conditioner (UPQC) is introduced, where the series inverter of UPQC is controlled to perform simultaneous voltage sag/swell compensation and load reactive power sharing with the shunt inverter.
References
More filters
Journal ArticleDOI
Summary of Distributed Resources Impact on Power Delivery Systems
TL;DR: Several system issues which may be encountered as DR penetrates into distribution systems are discussed, including vulnerability and overvoltages due to islanding and coordination with reclosing, system restoration and network issues.
Journal ArticleDOI
Active power filters: a review
TL;DR: There has been considerable interest in the development and applications of active filters because of the increasing concern over power quality, at both distribution and consumer levels, and the need to control reactive power and voltage stability at transmission levels as mentioned in this paper.
Journal ArticleDOI
Combined operation of unified power-quality conditioner with distributed generation
TL;DR: In this article, a unified power quality conditioner with the distributed generation is proposed, which consists of a series inverter, a shunt inverter and a distributed generator connected in the dc link through a rectifier.
Book
HVDC and FACTS Controllers: Applications of Static Converters in Power Systems
TL;DR: In this article, the authors present an overview of the HVDC control systems and their application in wind power systems, as well as a comparison between the CIGRE Benchmark Model and the Chain-Link Converter.
Journal ArticleDOI
Optimized Control Strategy for a Medium-Voltage DVR—Theoretical Investigations and Experimental Results
TL;DR: In this paper, an optimized control strategy is presented to reduce the needed injection voltage of the DVR and concurrently to mitigate the transient distortions at the load side, which can reduce the power consumption and improve the utilization of the storage system.
Related Papers (5)
The unified power quality conditioner: the integration of series- and shunt-active filters
Hideaki Fujita,Hirofumi Akagi +1 more
UPQC-S: A Novel Concept of Simultaneous Voltage Sag/Swell and Load Reactive Power Compensations Utilizing Series Inverter of UPQC
Vinod Khadkikar,Ambrish Chandra +1 more