Power supply quality improvement with a dynamic voltage restorer (DVR)

Kara, A.; Dahler, P.; Amhof, D.; Gruning, H.E.

doi:10.1109/apec.1998.654018

Cited by 74 publications

(14 citation statements)

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“…An isolated transformer is inevitable in DVR structure to isolate the DC and AC side and to protect the device over fault conditions of the grid [115]. While some researchers try to present novel DVRs with different transformer topologies, others research on transformer fewer DVR topologies [116,117].…”

Section: Dynamic Voltage Restorer (Dvr)mentioning

confidence: 99%

An overview of power quality enhancement techniques applied to distributed generation in electrical distribution networks

Naderi

Hosseini

Zadeh

et al. 2018

Renewable and Sustainable Energy Reviews

126

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-It is obvious that power quality is an important characteristic of today's distribution power systems as loadsbecome more sensitive on the other hand nonlinear loads are increasing in the electrical distribution system. Considering the distributed nature of harmonic loads, the need for distributed power quality improvement (PQI) is inevitable. From years ago, researchers have been working on various kinds of filters and devices to enhance the overall power quality of power system, but today the nature of distribution system has been changed and power electronic based DGs play an important role in distribution grids. In this paper, a thorough survey is done on power quality enhancement devices with emphasis on ancillary services of multi-functional DGs. A literature review is also done on microgrids concept, testbeds and related control methods. Although there were some applications of DGs for PQI improvement these applications were not defined multi-functional DGs. Various control methods are studied and categorized regarding different viewpoints in the literature. Finally, a couple of thorough comparisons are done between the available techniques considering the nature, capabilities, advantages and implementation costs.

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Section: Dynamic Voltage Restorer (Dvr)mentioning

confidence: 99%

An overview of power quality enhancement techniques applied to distributed generation in electrical distribution networks

Naderi

Hosseini

Zadeh

et al. 2018

Renewable and Sustainable Energy Reviews

126

View full text Add to dashboard Cite

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“…Among the different voltage distortions, voltage sags (dips) are the sever one in the electrical distribution systems. The principal cause of all voltage sags is a short-duration increase in current [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A low voltage dynamic voltage restorer with self-charging capability

Khoor

Machmoum

2007

2007 European Conference on Power Electronics and Applications

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In this paper a three phase low voltage dynamic voltage restorer (DVR) with a capacitor DC-link will be presented. A proper charging strategy is chosen for charging the DC bus by DVR power converter. The proposed DVR is capable of removing the voltage harmonics (up to 23 rd order) and short terms voltage dips very quickly. Voltage identification method and control strategy will be presented and the dynamical and steady state responses of the DVR for non-linear capacitive and inductive loads will be presented and discussed in detail.

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“…Ideally, it would be advantageous if the series voltage sag compensator could disappear then there will be no energy loss during the standby mode, and it could be inserted instantaneously for voltage sag compensation. Mostly, the series voltage sag compensator is short-circuited at the low voltage side of series transformer by the inverter switch or bypass switch (4) , in order to be ready to compensate voltage sags. Unfortunately, it will still introduce an extra impedance to the line, primarily due to the leakage inductance in series transformer; and cause a small voltage drop and power losses to the load.…”

Section: Introductionmentioning

confidence: 99%

“…Series voltage sag compensator is recognized as the most effective voltage sag mitigation equipment (1)- (4) . As the compensator has to supply active power as well as reactive power, a kind of energy storage is needed.…”

Section: Introductionmentioning

confidence: 99%

Standby Mode Operation of Series Type SMES for Voltage Sag Compensation

et al. 2005

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MemberIn this paper, the novel standby mode operation of series type SMES (Superconducting Magnetic Energy Storage) for voltage sag compensation is presented. In the proposed control scheme for standby mode, the power losses are minimized and voltage drop is mitigated. The series type SMES is bypassed during the normal weather. During the adverse weather, the series type SMES can compensate voltage sags instantaneously. Simulations of standby mode operation and voltage sag compensation demonstrated the validation of the proposed control scheme.

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Power supply quality improvement with a dynamic voltage restorer (DVR)

Cited by 74 publications

References 0 publications

An overview of power quality enhancement techniques applied to distributed generation in electrical distribution networks

An overview of power quality enhancement techniques applied to distributed generation in electrical distribution networks

A low voltage dynamic voltage restorer with self-charging capability

Standby Mode Operation of Series Type SMES for Voltage Sag Compensation

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