Journal ArticleDOI
A Novel Structure for Three-Phase Four-Wire Distribution System Utilizing Unified Power Quality Conditioner (UPQC)
Vinod Khadkikar,Ambrish Chandra +1 more
Reads0
Chats0
TLDR
In this paper, a novel structure for a three-phase four-wire (3P4W) distribution system utilizing unified power quality conditioner (UPQC) is presented.Abstract:
This paper presents a novel structure for a three-phase four-wire (3P4W) distribution system utilizing unified power quality conditioner (UPQC). The 3P4W system is realized from a three-phase three-wire system where the neutral of series transformer used in series part UPQC is considered as the fourth wire for the 3P4W system. A new control strategy to balance the unbalanced load currents is also presented in this paper. The neutral current that may flow toward transformer neutral point is compensated by using a four-leg voltage source inverter topology for shunt part. Thus, the series transformer neutral will be at virtual zero potential during all operating conditions. The simulation results based on MATLAB/Simulink are presented to show the effectiveness of the proposed UPQC-based 3P4W distribution system.read more
Citations
More filters
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
Model Predictive Approach for a Simple and Effective Load Voltage Control of Four-Leg Inverter With an Output $LC$ Filter
TL;DR: The proposed approach uses the novel discrete-time model of the inverter and output LC filter in order to predict the variables to be controlled and its application to the load voltage control of two-level four-leg inverters.
Journal ArticleDOI
A Robust Adaptive Control Strategy of Active Power Filters for Power-Factor Correction, Harmonic Compensation, and Balancing of Nonlinear Loads
TL;DR: In this article, a robust adaptive control strategy of shunt active power filters (SAPF) for power-factor correction, harmonic compensation, and balancing of nonlinear loads is introduced without load harmonic detection.
Journal ArticleDOI
A Modified Three-Phase Four-Wire UPQC Topology With Reduced DC-Link Voltage Rating
TL;DR: The proposed topology enables UPQC to have a reduced dc-link voltage without compromising its compensation capability, and helps to match the dc- link voltage requirement of the shunt and series active filters of the UpQC.
References
More filters
Journal ArticleDOI
Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components
TL;DR: In this paper, a new instantaneous reactive power compensator comprising switching devices is proposed, which requires practically no energy storage components, and is based on the instantaneous value concept for arbitrary voltage and current waveforms.
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
An universal active power line conditioner
Abstract: The power circuit of a general active power line conditioner (APLC) is based on series and shunt power converters that share a single DC link. In the present paper, a generic control concept for these series and shunt converters is proposed. It is based on the instantaneous real and imaginary power theory. In fact, the resulting equipment deals with the custom power and FACTS concepts. This equipment incorporates not only the compensation functions at the fundamental frequency like a unified power flow controller (UPFC), but also provides active harmonic mitigation capabilities. For these reasons, the compensator proposed here is called the universal active power line conditioner (UPLC). Simulation and experimental results are presented to confirm that the new approach has better performance than those obtained by controllers based on traditional concepts of active and reactive power.
Proceedings ArticleDOI
Active filtering of harmonic currents in three-phase, four-wire systems with three-phase and single-phase nonlinear loads
C.A. Quinn,Ned Mohan +1 more
TL;DR: In this paper, a novel active harmonic-neutralizing filter is proposed which eliminates current harmonic effects, caused by any configuration of nonlinear loads in a three-phase, four-wire systems.
Proceedings ArticleDOI
Single-phase PQ theory
TL;DR: The theory of instantaneous reactive power compensation of single-phase circuits is presented in this paper, which is a general case of well-known pq theory and it is usable in single phase as well as three phase circuits.
Related Papers (5)
The unified power quality conditioner: the integration of series- and shunt-active filters
Hideaki Fujita,Hirofumi Akagi +1 more