Hybrid Power Quality Compensator With Minimum DC Operation Voltage Design for High-Speed Traction Power Systems

Lao, Keng-Weng; Dai, Ningyi; Liu, Weigang; Wong, Man-Chung

doi:10.1109/tpel.2012.2200909

Cited by 92 publications

(36 citation statements)

References 24 publications

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“…Various control methods to derive the compensating commands from distorted voltage and current signals through time domain are synchronous orthogonal d-q reference frame method [52,65,71,74,121], slip control [111], PSO technique [76], instantaneous p-q theory [42,46,47,86,112,118], single variable linear controllers [81], flux base control [68], SPX algorithm of Nelder and need for optimization [64], abc-dq coordinate method [129], PLL control [72,104,107,123], etc. In the above mentioned various control methods, the widely used control methods are instantaneous p-q theory [42,46,47,86,112,118] and α-β transformation to d-q frame [63,67].…”

Section: Compensation Through Time Domainmentioning

confidence: 99%

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Power Quality Conditioners for Railway Traction—a Review

Gunavardhini¹,

Chandrasekaran²

2016

Automatika

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Original scientific paperRailway traction is a more stochastic heavy load connected system. Due to the usage of ac-dc converters and ac-ac converters, the various power quality issues become the major problems in the electric system. This paper presents a review on power quality conditioners suitable for Railway traction based on the configuration, components involved and on the technical and economic considerations. More than 120 publications are listed in the reference for quick review. Poboljšanje kvalitete snage za željezničke sustave -pregled istraživanja. Željeznički električni sustav je prilično stohastički sustav s velikim opterečenjem. Zbog korištenja AC/DC i AC/AC pretvarača, problemi s kvalitetom isporučene energije predstavljaju glavne probleme električnih sustava. U ovome radu predstavljen je pregled područja vezano uz poboljšanje kvalitete energije za željezničke sustave ovisno o konfiguraciji, komponentama uključenim te o tehničkim i ekonomskim aspektima. Više od 120 radova navedeno je u popisu literature.Ključne riječi: metode za poboljšanje kvalitete energije, kompenzacija haromonika i reaktivne snage, aktivni filtri, šant hibridni filtar, kvaliteta energije

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Section: Compensation Through Time Domainmentioning

confidence: 99%

“…In the above mentioned various control methods, the widely used control methods are instantaneous p-q theory [42,46,47,86,112,118] and α-β transformation to d-q frame [63,67]. The command signals are derived from extracted fundamental signals using α-β transformation.…”

Section: Compensation Through Time Domainmentioning

confidence: 99%

Power Quality Conditioners for Railway Traction—a Review

Gunavardhini¹,

Chandrasekaran²

2016

Automatika

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“…Nonetheless, few studies investigate APF DC-link voltage control specifically. Existing literature mainly focuses on DC-link capacitor minimization [12], [13], DC-link voltage control strategy [14], [15], minimum DC-link voltage design [16]- [18], and adaptive strategies for DC-link voltage reference value [19]- [22]. Such studies seldom emphasize the inherent relationship between DC-link voltage controllers and the steady-state compensation performance of APF.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter

Wang¹,

Xie²,

Liu³

2015

Journal of Power Electronics

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This study investigates the inherent influence of a DC-link voltage controller on both DC-link voltage control and the compensation performance of a three-phase, four-wire shunt active power filter (APF). A nonlinear variable-parameter DC-link voltage controller is proposed to satisfy both the dynamic characteristic of DC-link voltage control and steady-state compensation performance. Unlike in the conventional fixed-parameter controller, the parameters in the proposed controller vary according to the difference between the actual and the reference DC-link voltages. The design procedures for the nonlinear voltage controller with variable parameters are determined and analyzed so that the proposed voltage controller can be designed accordingly. Representative simulation and experimental results for the three-phase, four-wire, center-spilt shunt APF verify the analysis findings, as well as the feasibility and effectiveness of the proposed DC-link voltage controller.

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“…Thus, various harmonics in practical applications may present a potential problem. In [13]- [15], a minimum DC-link voltage design for a power quality compensator and three-phase four-wire APFs with and without a neutral inductor were proposed. However, the influence of DC-link voltages, which were larger than the minimum value, on system performance was not investigated.…”

Section: Introductionmentioning

confidence: 99%

“…However, the influence of DC-link voltages, which were larger than the minimum value, on system performance was not investigated. Based on the analysis in [13]- [15], an adaptive DC-link voltage controller in which the DC-link voltage can be adaptively changed according to different reactive power compensations was deduced and proposed for the LC coupling hybrid APF with and without a neutral inductor [16], [17]. However, the inherent influence between the reactive power compensation and the DC-link voltage control was not discussed, and the proposed adaptive DC-link voltage control algorithm did not consider the harmonic current.…”

Section: Introductionmentioning

confidence: 99%

Adaptive DC-link Voltage Control for Shunt Active Power Filter

Wang¹,

Xie²

2014

Journal of Power Electronics

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This study analyzes the mathematical relationship between DC-link voltage and system parameters for shunt active power filters (APFs). Analysis and mathematical deduction are used to determine the required minimum DC-link voltage for APF. A novel adaptive DC-link voltage controller for the three-phase four-wire shunt APF is then proposed. In this controller, the DC-link voltage reference value will be maintained at the required minimum voltage level. Therefore, power consumption and switching loss will effectively decrease. The DC-link voltage can also adaptively yield different DC-link voltage levels based on different harmonic currents and grid voltage levels and thus avoid the effects of harmonic current and grid voltage fluctuation on compensation performance. Finally, representative simulation and experimental results in a three-phase four-wire center-split shunt APF are presented to verify the validity and effectiveness of the minimum DC-link voltage design and the proposed adaptive DC-link voltage controller.

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Hybrid Power Quality Compensator With Minimum DC Operation Voltage Design for High-Speed Traction Power Systems

Cited by 92 publications

References 24 publications

Power Quality Conditioners for Railway Traction—a Review

Power Quality Conditioners for Railway Traction—a Review

Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter

Adaptive DC-link Voltage Control for Shunt Active Power Filter

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