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
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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
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Fuzzy Based Interline Unified Power Quality Conditioner for Power Quality Enhancement
TL;DR: In this paper, a fuzzy logic controller (FLC) is used for power quality enhancement in an interline unified power quality controller (iUPQC) with fuzzy sets and fuzzy rules with membership functions of inputs and outputs.
Journal ArticleDOI
Design and Simulation of Active Power and Power Angle Control of UPQC to Mitigate Voltage Sag/Swell and Load Reactive Power Compensation
G. Amarnath reddy,V Sekhar +1 more
TL;DR: In this article, an optimal utilization of series inverter of a unified power quality conditioner (UPQC) is presented, where the series inverters are controlled to perform simultaneous voltage sag/swell compensation and load reactive power sharing with the shunt inverter.
Journal ArticleDOI
A Comprehensive Review of Harmonic Issues and Estimation Techniques in Power System Networks Based on Traditional and Artificial Intelligence/Machine Learning
Amir Taghvaie,Tharindu Romesh Fernando Warnakulasuriya,Dinesh Kumar,Firuz Zare,R. Sharma,D.M. Vilathgamuwa +5 more
TL;DR: A comprehensive review of traditional and modern (smart) harmonic estimation techniques are discussed in this paper , where the power system parameters (impedance/admittance model) and many harmonic monitors are prerequisites for traditional harmonic estimation methods, these requirements are minimized by utilizing Artificial Intelligence.
Journal ArticleDOI
A Comparative Analysis between UPQC and Dual UPQC (iUPQC) with Improved Controller
Ankitha M R,Arun Sebastian +1 more
TL;DR: The iUPQC system performance under nonlinear load condition has been evaluated and compared with conventional UPQC and the MATLAB/SIMULINK based simulation supports the functionality of improved iUPZC System.
References
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Book
Understanding FACTS: Concepts and Technology of Flexible AC Transmission Systems
TL;DR: The Flexible AC Transmission System (FACTS)—a new technology based on power electronics—offers an opportunity to enhance controllability, stability, and power transfer capability of ac transmission systems.
Journal ArticleDOI
A review of active filters for power quality improvement
TL;DR: This paper presents a comprehensive review of active filter configurations, control strategies, selection of components, other related economic and technical considerations, and their selection for specific applications.
Journal ArticleDOI
New trends in active filters for power conditioning
TL;DR: In this article, the authors present the present status of active filters based on state-of-the-art power electronics technology, and their future prospects and directions toward the 21st Century, including the personal views and expectations of the author.
Journal ArticleDOI
The unified power quality conditioner: the integration of series- and shunt-active filters
Hideaki Fujita,Hirofumi Akagi +1 more
TL;DR: In this paper, a unified power quality conditioner (UPQC) is proposed to compensate for voltage flicker/imbalance, reactive power, negative-sequence current and harmonics.
Journal ArticleDOI
Unified power-flow control concept for flexible AC transmission systems
TL;DR: In this article, the authors outline the technical and economic factors which characterise the uniform, all solid-state power-flow controller approach for real-time controlled, flexible AC transmission systems.
Related Papers (5)
The unified power quality conditioner: the integration of series- and shunt-active filters
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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