Analysis of a Dynamic Voltage Compensator With Reduced Switch-Count and Absence of Energy Storage System

Silva, Sidelmo M.; Silveira, S.E. da; Reis, A.S.; Filho, Braz J. Cardoso

doi:10.1109/tia.2005.853382

Cited by 33 publications

(15 citation statements)

References 9 publications

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“…The DVR topologies with no energy storage take advantage of the remaining utility power for compensation. The location of the passive convertereither on the supply side or the load side bifurcates the storageless DVR topology into supply side connected DVR and load side connected DVR as shown in Figures 7(a) and 7(b), respectively [50][51][52][53][54]. It is proved theoretically and experimentally that the load side connected shunt converter DVR is superior among all the topology classification based on energy storage [10,21,46,49,55,56].…”

Section: Topologies Of Dvrmentioning

confidence: 93%

Dynamic Voltage Restorer (DVR) – A Review

Remya

Parthiban

Ansal

et al. 2018

JGE

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Power quality (PQ) is gaining a great deal of importance as more sensitive loads are introduced into the utility grid. The degradation of product quality, damage of equipment and temporary shutdowns are the general issues associated with PQ problems in industries. Any mal-operation or damage of the industrial sensitive loads results in monetary losses disproportionately higher than the severity of the PQ issues. The evolution of power electronics technology replaced the traditional power quality mitigation methods with the introduction of Custom Power System devices (CUPS). The major power electronic controller based CUPS are DSTATCOM, DVR and UPQC. DVR is a pertinent solution for the economic losses caused by the PQ issues in the industries. Among the CUPS, DVR is the most cost-effective one. In the published literature, only a few papers correspond to the review of DVR technology. In this paper, a systematic review of published literature is conducted and a description is given on the design, standards and challenges in the DVR technology. A detailed survey is conducted on the published

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Section: Topologies Of Dvrmentioning

confidence: 93%

Dynamic Voltage Restorer (DVR) – A Review

Remya

Parthiban

Ansal

et al. 2018

JGE

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“…Additionally, while much work has been done on the effects and the measurements of voltage sags in the last decade [6,[9][10][11], little work has been published on the compensating methods of each type of electrical equipments when voltage sag occurs. As the ever-increasing in the economics development, lots of researchers devoted themselves to searching for effective ridethrough methods of those sensitive to power-disturbances devices [12][13][14][15][16][17][18]. Except Kelley et al [16] and Andrada et al [17], the main researching objective of most of them was usually not aimed at contactor.…”

Section: Introductionmentioning

confidence: 99%

Development of a new voltage quality improving method for electromagnetic contactor

Chi

2009

International Journal of Applied Electromagnetics and Mechanics

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This paper focuses on a novel control algorithm and its implementation method for providing voltage compensation to the coil of an AC electromagnetic contactor during voltage sags. Firstly, a new diagnosis algorithm is designed for correctly and timely detecting the voltage-sag event. When this new algorithm is embedded in the voltage compensation circuit and in series with the AC core of the contactor, the abnormal disengagement of the contactor contacts during voltage sag event could be eliminated through several experimental results. Another one designing point is that the dynamic position of armature can only be determined by a simple estimation method. In addition, the estimated position of armature and the applied voltage and coil current are taken as inputs by a single-chip based controller and provide the compensation voltage as output if voltage-sag event occurs. The above-mentioned new algorithm has been implemented in the laboratory.

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“…In recent years, low-voltage / low-power series compensators for sag mitigation have been introduced and commercialized by several companies [2][3]. These equipments insert a compensating voltage between the faulty grid and the load in order to restore the voltage amplitude at the load-end.…”

Section: Introductionmentioning

confidence: 99%

Cost effective voltage sag mitigation using square-wave Series Compensators

Pires

Filho

2009

2009 IEEE Energy Conversion Congress and Exposition

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Voltage Series Compensators typically insert a sinusoidal voltage to compensate voltage sags. In order to achieve a sinusoidal waveform, the output circuitry is formed by a PWM inverter with a sinusoidal filter. However, the sag disturbance is a phenomenon that typically occurs during hundreds of milliseconds. Instead of injecting a sinusoidal voltage, this paper proposes a series compensator that injects a square-wave voltage to protect the sensitive loads. The proposed compensator does not need the high switching frequency PWM inverter, thyristor by-pass switches and sinusoidal output filter, reducing the overall cost and volume of the final equipment. This paper presents the proposed series compensator topologies and control. Experimental results are also included to demonstrate the compensator performance when protecting microcomputer and PLC loads.

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Analysis of a Dynamic Voltage Compensator With Reduced Switch-Count and Absence of Energy Storage System

Cited by 33 publications

References 9 publications

Dynamic Voltage Restorer (DVR) – A Review

Dynamic Voltage Restorer (DVR) – A Review

Development of a new voltage quality improving method for electromagnetic contactor

Cost effective voltage sag mitigation using square-wave Series Compensators

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