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
Enhancement of power quality for load compensation using three different FACTS devices based on optimized technique
Proceedings ArticleDOI
Generalized UPQC system with an improved control method under distorted and unbalanced load conditions
A. Jeraldine Viji,M. Sudhakaran +1 more
TL;DR: In this paper, a modified synchronous reference frame (SRF)-based control method to Shunt active filter and instantaneous PQ (IPQ) theory based control technique for series active filter to compensate power-quality (PQ) problems through a three-phase four-wire unified PQ conditioner (UPQC) under unbalanced and distorted load conditions.
Journal ArticleDOI
Mitigation of Power Quality Problems Using Custom Power Devices: A Review
Miska Prasad,A.K. Akella +1 more
TL;DR: In this article, a comprehensive review on D-STATCOM, DVR, and UPQC to solve the electrical power quality problems of the distribution networks is presented, which is intended to present a broad overview of the various possible DSTATCOM and DVR configurations for single-phase and three-phase (three-wire and four-wire) networks and control strategies for the compensation of various power quality disturbances.
Journal ArticleDOI
A Review on Back-to-Back Converters in Permanent Magnet Synchronous Generator based Wind Energy Conversion System
TL;DR: In this article, a review on the application of back-to-back converters in the field of Permanent Magnet Synchronous Generator (PMSG) based wind energy conversion systems (WECS) is presented.
Book ChapterDOI
Active Power Filter
TL;DR: In this paper, active power filters can be used to cancel out or mitigate harmonics and their effects, which can be discussed in this chapter, in order to improve the power quality of the grid.
References
More filters
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
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