Principle and characteristics of a fault current limiter with series compensation

Sugimoto, Shigeki; Kida, Junzo; Arita, Hiroshi; Fukui, Chihiro; Yamagiwa, T.

doi:10.1109/61.489342

Cited by 104 publications

(36 citation statements)

References 3 publications

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“…Txertatutako inpedantziadun SSFCLren zenbait ereduk linea isolatzeko kommutagailu bat izaten dute seriean konektatuta [5,6]. Diseinu horiek korrontea eteteko gai dira edozein atzerapen-denborarekin.…”

Section: Txertatutako Inpedantziadun Egoera Solidoko Akats-korronteenunclassified

Akats-korronteen mugaketa MMC bihurgailudun VSC-HVDC sistemetan

Iturregi

Etxegarai

Larruskain

et al. 2017

EKAIA

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Laburpena: Goi-tentsioko korronte zuzeneko (ingelesez, High Voltage Direct Current HVDC) garraio-sistemak gero eta garrantzitsuagoak dira sistema elektrikoan, onura ekonomiko eta teknikoak direla eta. Hala ere, akatsen bat gertatzen denean, korrontea eteteak oraindik ere erronka izaten jarraitzen du HVDC sareetan. Desiragarriak ez diren korronteak eteteko, korronte zuzeneko etengailuak erabil daitezke, baina horien gaitasuna mugatua da. Egoera hala izanik, akats-korronteen mugagailuak (ingelesez, Fault Current Limiter FCL) dira proposamenik egokiena akats-korronteak maneiagarriagoak diren balioetara txikitzeko; hartara, sistema elektrikoaren garraio-ahalmena handitu daiteke, ekipamendua aldatu beharrik gabe. Sarean aldez aurretik legokeen ekipamendua gai izango litzateke korronte berriak kudeatzeko eta sistema era eraginkorrean babesteko FCLen erabilpenaz. Artikulu honetan, FCL tresnen ezaugarri orokorrak eta sailkapena aurkezten dira. Ondoren, egoera solidoko FCLa erabili da maila anizkoitzeko bihurgailudun (ingelesez, Modular Multilevel Converter MMC) VSC-HVDC (ingelesez, Voltage Source Converter) sistema batean, eta horren jokaera azaltzen da simulazio bidez.Hitz gakoak: Goi-tentsioko korronte zuzena (HVDC), akats-korronteen mugagailua (FCL), korronte zuzeneko etengailua, maila anitzeko bihurgailua (MMC), egoera solidoa, supereroaleak.Abstract: High Voltage Direct Current (HVDC) transmission systems are playing an important role due to their economical and technical benefits in the countries where the electric grid is expanding fast. However, fault current interruption is still an unsolved challenge in these HVDC grids. In order to interrupt undesirable currents, DC circuit breakers can be used, but their capability is limited. Under that scenario, Fault Current Limiters (FCL) arise as a good approach in order to reduce fault currents to a more

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Section: Txertatutako Inpedantziadun Egoera Solidoko Akats-korronteenunclassified

Akats-korronteen mugaketa MMC bihurgailudun VSC-HVDC sistemetan

Iturregi

Etxegarai

Larruskain

et al. 2017

EKAIA

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“…Besides their traditional use as fault current limiters [4,5], CLDs are shown in this paper to be able to mitigate the four types of sag by maintaining the voltage magnitude V at 1 p.u. and phase jump Á at 0°.…”

Section: Introductionmentioning

confidence: 99%

Voltage Quality Enhancement with Wavelet-Artificial Intelligence Current Limiting Devices

Loh

2000

Electric Machines & Power Systems

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Due to the increased use of digital computers, PW M adjustable speed drives, and automated controllers in industries, utilities are faced with rising concerns about the quality of power supplied. This paper, based purely on simulations, focuses on the application of current limiting devices on radial distribution systems to enhance the voltage quality at the distribution buses. The rst section of the paper demonstrates the eOE ectiveness of the limiting devices in reducing the dips in voltages and associated phase-angle jumps. Because the current devices need to be introduced to the systems almost instantaneously after the occurrence of a fault, the second section introduces a new adaptive fault-sensing scheme for use with these devices. This scheme utilizes wavelet packets analysis as a preliminary feature extractor and a neural network as a pattern classi er. Simulations show that the scheme required no user interference and can be applied to any network con guration.

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“…Although much work has been done in the extraction and compensation of each common PQ disturbance, few compensation strategies for several VQ problems have been developed [2]. In fact, there is a tremendous need for such generalised compensation strategies because of high probability for finding several VQ problems existing at the same bus, the same feeder or at the same load [3][4][5][6][7][8][9]. On the other hand, a utility is likely to take sufficient measures that limit the interruptions due to voltage fluctuations.…”

Section: Introductionmentioning

confidence: 99%

An Approach to Voltage Quality Enhancement by Introduction of CWVM for Distribution System

Shrivastav¹,

Sadhu²,

Ganguly³

et al. 2016

IJPEDS

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This paper presented with problems related with voltage flicker in power system networks. Several international standard issued to control the voltage flicker are briefly described and some important methods to analyse electrical circuits with sinusoidal and non-sinusoidal waveforms are introduced and evaluated. One of these methods-Cockcroft Walton Voltage Multiplier (CWVM) has been used to increase the voltage of a filter, which is also described in this paper as a practical application. The filter can compensate for harmonic currents, power factor, and unbalance voltage.The simulation results using Multisimare presented, showing that good dynamic and steady-state response can be achieved with this approach. Keyword: CWVM INTRODUCTIONVoltage interruption and fluctuation are the most significant power quality disturbances for consumers due to their significant unfavourable impact on electronic equipment. The system voltage fluctuation mainly caused by the faults in the power system and sometimes by the energization of large Induction Motors. In the early 90s, the impact of voltage fluctuation was measured using magnitude and duration indices and compared with the power quality envelope. Therefore, fluctuation creates competition among utilities to provide their customers with reliable power quality (PQ). PQ means voltage quality (VQ) from the customers" perspective [1]. This perspective motivates PQ research towards the mitigation of VQ problems in order to improve PQ in distribution systems. Although much work has been done in the extraction and compensation of each common PQ disturbance, few compensation strategies for several VQ problems have been developed [2]. In fact, there is a tremendous need for such generalised compensation strategies because of high probability for finding several VQ problems existing at the same bus, the same feeder or at the same load [3][4][5][6][7][8][9]. On the other hand, a utility is likely to take sufficient measures that limit the interruptions due to voltage fluctuations. The utility should evaluate the voltage performance of the distribution system by performing studies that will provide it with information on the voltage magnitude, duration, and frequency at a node where a sensitive load is likely to be connected. If the sag performance is inadequate, the utility should take measures to improve that performance. An alternate approach to assess the voltage performance is by means of computer simulation. Two methods that are generally used are the method of fault positions and the method of critical distances [10]. The voltage sag performance of a hypothetical distribution system has been assessed in reference [11]. This study uses the Kalman filter, the

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Principle and characteristics of a fault current limiter with series compensation

Cited by 104 publications

References 3 publications

Akats-korronteen mugaketa MMC bihurgailudun VSC-HVDC sistemetan

Akats-korronteen mugaketa MMC bihurgailudun VSC-HVDC sistemetan

Voltage Quality Enhancement with Wavelet-Artificial Intelligence Current Limiting Devices

An Approach to Voltage Quality Enhancement by Introduction of CWVM for Distribution System

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