Enhancing Electric Power Quality Using UPQC: A Comprehensive Overview

Khadkikar, Vinod

doi:10.1109/tpel.2011.2172001

Cited by 634 publications

(309 citation statements)

References 148 publications

(368 reference statements)

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“…In [6], the optimal allocation of Capacitor is carried out to minimize network power loss and to improve node voltage magnitude. The unified power quality conditioner (UPQC) is one of the versatile DFACTS devices [4]. The research on UPQC is mostly focused on the mitigation of power quality problems for single load [4]- [5].…”

Section: Introductionmentioning

confidence: 99%

“…The unified power quality conditioner (UPQC) is one of the versatile DFACTS devices [4]. The research on UPQC is mostly focused on the mitigation of power quality problems for single load [4]- [5]. The theme of this paper is set as an investigation of its potential applicability in optimal reactive power compensation of a distribution network.…”

Section: Introductionmentioning

confidence: 99%

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Reactive Power Compensation of Radial Distribution Networks with Unified Power Quality Conditioner (UPQC) and Capacitor Allocation using Multi-Objective Particle Swarm Optimization

Pavani¹,

A²

2015

International Journal of Innovative Research in Electrical, Ele

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This paper presents a study on the impact of unified power-quality conditioner (UPQC) allocation on radial distribution systems. A UPQC consists of a series and a shunt inverter. In UPQC, the series inverter injects a voltage with controllable phase angle in such a way that the voltage magnitude at load end remains unchanged. Due to the phase angle shift, the series inverter participates in load reactive power compensation along with the shunt inverter during healthy operating condition. In the proposed approach, the optimal design parameters of UPQC are determined by minimizing objective functions network power loss, Percentage of Nodes with Under Voltage Problem(PNUVP).These objectives are simultaneously minimized to obtain a set of non-dominated solutions using multi-objective PSO (MOPSO). The results show that a significant amount of power-loss reduction, under voltage mitigation can be obtained with an appropriate placement of the UPQC in a distribution network. The performances of PSO with UPQC and UPQC with Capacitor variants are compared and the better one is used in all subsequent studies.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reactive Power Compensation of Radial Distribution Networks with Unified Power Quality Conditioner (UPQC) and Capacitor Allocation using Multi-Objective Particle Swarm Optimization

Pavani¹,

A²

2015

International Journal of Innovative Research in Electrical, Ele

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“…Several ideas have been reported for compensation or mitigation of voltage disturbances [4][5][6][7][8][9]. However, in all of the voltage sag compensation or voltage sag mitigation methods, voltage sag detection is the first essential part of any voltage sag compensation systems since it has to detect voltage sag incidents as fast and initiate the next compensate processes as possible (Fig.…”

Section: Introductionmentioning

confidence: 99%

An Improvement in Synchronously Rotating Reference Frame-Based Voltage Sag Detection under Distorted Grid Voltages

Sillapawicharn¹,

Kumsuwan²

2013

Journal of Electrical Engineering and Technology

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-This study proposed an improvement in synchronously rotating reference frame-based voltage sag detection under distorted grid voltages. In the past, the conventional synchronously rotating reference frame (CSRRF)-based voltage sag detection was generally used in the voltage sag compensation applications. Its disadvantage is a long delay of detection time. The modified synchronously rotating reference frame (MSRRF)-based voltage sag detection is able to detect the voltage sag with only a short delay in detection time. However, its operation under distorted grid voltage conditions is unavailable. This paper proposed the improvement of modified synchronously rotating reference frame (IMSRRF)-based voltage sag detection for use in distorted grid voltages with very fast operation of voltage sag detection. The operation of the proposed voltage sag detections is investigated via simulations and experimentations to verify the performance of the IMSRRF-based voltage sag detection.

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“…It is the control strategy which decides the behavior and effectiveness of the compensation (Khadkikar, 2012). Shunt Active Filter (SAF), a specific type of APF, can effectively compensate the harmonic current of nonlinear loads (Cavini et al, 2004), injecting the detected currents distortions with reverse polarity, so getting its cancellation.…”

Section: Introductionmentioning

confidence: 99%

Feedback linearization control for active filters

Ketzer

Jacobina

2013

Proceeding Series of the Brazilian Society of Computational and Applied Mathematics

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Abstract-This paper presents the application of the feedback linearization theory to a three-phase shunt active filter. The solution is performed in a synchronous reference frame, dealing with multivariable aspects of system. The proposed control ensures a proper operation of active filter, allowing to achieve high power factor of the grid independent of constants obtained by operation points. Experimental results obtained from a prototype are presented in order to validate the proposed strategy, covering the analysis from stationary and transient responses. Keywords-Feedback Linearization, Nonlinear Control, Active Filters, Nonlinear DynamicsResumo-Este trabalho apresenta a aplicação da teoria feedback linearization em um filtro ativo trifásico. A soluçãoé realizada num eixo de referências síncronas, tratando os aspectos multivariaveis do sistema. O controle proposto garante uma operação satisfatoria do filtro ativo, permitindo alcançar alto fator de potência na rede independentemente das constantes obtidas pelos pontos de operação. Resultados experimentais obtidos em laboratório a partir de um protótipo do conversor são apresentados, abordando a análise em regime e transitória.

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Enhancing Electric Power Quality Using UPQC: A Comprehensive Overview

Cited by 634 publications

References 148 publications

Reactive Power Compensation of Radial Distribution Networks with Unified Power Quality Conditioner (UPQC) and Capacitor Allocation using Multi-Objective Particle Swarm Optimization

Reactive Power Compensation of Radial Distribution Networks with Unified Power Quality Conditioner (UPQC) and Capacitor Allocation using Multi-Objective Particle Swarm Optimization

An Improvement in Synchronously Rotating Reference Frame-Based Voltage Sag Detection under Distorted Grid Voltages

Feedback linearization control for active filters

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