Review of control strategies for power quality conditioners

Mariun, Norman; Alam, A. H. M. Zahirul; Mahmod, S.; Hizam, Hashim

doi:10.1109/pecon.2004.1461626

Cited by 39 publications

(17 citation statements)

References 45 publications

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“…Very accurate and fast sensing of signals, fast processing of reference signals and high dynamic response of controller are the key requirement of a good compensating device [5]. Keeping this in mind, researchers have proposed and implemented large number of control techniques for reference signal generation, dc-link voltage balance and switching pattern.…”

Section: Control Strategiesmentioning

confidence: 99%

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A survey on active power filters control strategies

Steela

Rajpurohit

2014

2014 IEEE 6th India International Conference on Power Electronics (IICPE)

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Due to increased level of harmonic pollution in present day power system, power quality conditioning has become indispensable, and therefore, various power conditioning techniques were introduced. Among them, active power filters appear to be the most viable device used for mitigating power quality issues. Various strategies of controlling active power filter are proposed and implemented by researchers and engineers in aim of achieving near perfect compensation. This paper presents a comprehensive review of state-of-art control strategies of active filters. Various strategies are discussed and compared in terms of implementation and performance.

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Section: Control Strategiesmentioning

confidence: 99%

“…They deteriorate power quality by increasing total harmonic distortion (THD) and reactive power and by causing poor power factor, voltage flicker, bad voltage regulation, voltage sags and swells, unbalanced load etc. [1], [4], [5]. Harmonics also causes disturbances in communication network present in the vicinity of the system.…”

Section: Introductionmentioning

confidence: 99%

A survey on active power filters control strategies

Steela

Rajpurohit

2014

2014 IEEE 6th India International Conference on Power Electronics (IICPE)

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“…The control strategy affects the cost, steady state, and dynamic performances of the filter. The common point of the investigated control techniques is the need of grid voltage measurement [3]. The unbalanced voltages usually occur because of variations and unbalances in the load -arising from differing phases of the load current due to different network impedances for example.…”

Section: Introductionmentioning

confidence: 99%

Control of the shunt Active Power Filter under non-ideal grid voltage and unbalanced load conditions

Biricik

Redif

Özerdem

et al. 2013

2013 48th International Universities' Power Engineering Conference (UPEC)

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Biricik, S.; Redif, S.; Ozerdem, O.C.; Basu, M., "Control of the shunt Active Power Filter under non-ideal grid voltage and unbalanced load conditions," Power Engineering Conference (UPEC), 2013 48th International Universities ' , vol., no., pp.1,5, 2-5 Sept. 2013 Abstract-In this study a new method is proposed in order to improve the harmonic suppression efficiency of Active Power Filter for the problems caused by the distorted and unbalanced voltages with unbalanced load currents in control strategy. The proposed control method gives an adequate compensating current reference even for non ideal voltage and unbalanced current conditions. The results of simulation study are presented to verify the effectiveness of the proposed control technique in this study.

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Section: Introductionmentioning

confidence: 99%

“…They are applicable of compensating cuffent-based distortions such as current harmonics, reactive and neutral current. They are also used for voltage-based distortions such as shunt, series, hybrid and unified power quality conditioners that have been proposed by many researchers [1][2][3][4].A series hybrid active filter composed of the shunt passive filter and the series active filter can be applied to compensate both the current-source and the voltage-source harmonic load [5][6][7][8]. However, choice of a suitable gain to ensure a good compensation is a tedious and difficult work while keeping the system stable for different load and source condition [7-9].…”

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confidence: 99%

Analysis and Design of a Novel Phase-lead Compensation Control Strategy for the SHAPF

Tong

Qian

Song

et al. 2007

APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition

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This paper a state-space averaging model of a series hybrid active power filter (SHAPF) is constructed to analyze its system stability by traditional control strategy, taking into account the effect of the time delay. A phase-lead compensation control strategy is proposed to improve the stability and filter performance of the SHAPF. Simulation and experimental results from a 10-kW laboratory system verify its validity.Index terms-series hybrid active power filter, time delay, phaselead compensation; I. INTRODUCTIONThe proliferation of electronic loads in commercial and industrial installations has created a serious concern in the field of electric power engineering due to harmonic distortion produced in the mains. The compensation for harmonic and reactive currents becomes increasingly important both for utilities and industries to feed their sensitive equipment with a quality power, thereby avoiding malfunction and loss of revenue. Active power filters (APFs) are presently the most versatile and effective equipments to confront the challenge of reducing disturbances in power system. They are applicable of compensating cuffent-based distortions such as current harmonics, reactive and neutral current. They are also used for voltage-based distortions such as shunt, series, hybrid and unified power quality conditioners that have been proposed by many researchers [1][2][3][4].A series hybrid active filter composed of the shunt passive filter and the series active filter can be applied to compensate both the current-source and the voltage-source harmonic load [5][6][7][8]. However, choice of a suitable gain to ensure a good compensation is a tedious and difficult work while keeping the system stable for different load and source condition [7-9]. The analysis and experimental results have pointed out that a time delay can cause a stability problem [10], but a definite stability analysis of the SHAPF has been seldom discussed.This paper a state-space averaging model of SHAPF is constructed to analyze the stability problem of the SHAPF by the tradition control strategy, taking into account the delay time in the digital control circuit. It can be concluded from the Bode plot of the open-loop transfer function that larger delay time will cause the phase angle loss seriously leading to system unstable and poor filter performance. To reduce the effect of the time delay, a phase-lead compensation control strategy is proposed. The phase-lead control strategy can eliminate the effect of the time delay and to improve the system stability and

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Review of control strategies for power quality conditioners

Cited by 39 publications

References 45 publications

A survey on active power filters control strategies

A survey on active power filters control strategies

Control of the shunt Active Power Filter under non-ideal grid voltage and unbalanced load conditions

Analysis and Design of a Novel Phase-lead Compensation Control Strategy for the SHAPF

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