scholarly journals A review of series voltage source converter with fault current limiting function

2018 ◽  
Vol 4 (1) ◽  
pp. 36-44 ◽  
Keyword(s):  
Voltage Source ◽  
Voltage Source Converter ◽  
Fault Current ◽  
Current Limiting

scholarly journals A Hybrid DC Circuit Breaker with Fault-Current-Limiting Capability for VSC-HVDC Transmission System

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2388 ◽  
Author(s):  
Muhammad Ahmad ◽  
Zhixin Wang
Keyword(s):  
Energy Absorption ◽  
Direct Current ◽  
Circuit Breaker ◽  
Good Alternative ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Fault Current ◽  
Circuit Breakers ◽  
Current Limiting ◽  
Hybrid Circuit

The direct current circuit breakers are considered a promising option to protect the transmission line against commonly appearing line-to-ground fault. However, the challenges of losses in the nonoperational stage, escalation of response against fault current, and large fault current handling capability remain the debatable issues for direct current circuit breakers. This paper introduces a novel topology of the hybrid circuit breaker with fault-current-limiting characteristics, which contains three branches: the main branch, fault-current-limiting branch, and energy absorption branch. The main branch includes a mechanical switch, breaker impedance, and bidirectional power electronics switches. In the fault-current-limiting branch, a fault-current-limiting circuit is introduced which contains n numbers of bidirectional switches and current-limiting inductors, which are connected in series to make the design modular in nature. During the normal working stage, the current flows through the main branch of the breaker. Once a fault in the system is confirmed, the fault current is transferred to the fault-current-limiting branch. At this stage, the intensity of the fault current is reduced significantly using the fault-current-limiting circuit, and finally, the residual current is shifted to the energy absorption branch. The working principle, design considerations, and parametric analysis concerning the design of hybrid circuit breakers are incorporated in this paper. The performance of the proposed breaker is evaluated using a three-terminal voltage-source converter-based high-voltage direct current transmission network; for this purpose, a PSCAD/EMTDC simulation tool is used. The performance of the proposed breaker is also compared with other topologies. The comparative analysis shows that the proposed breaker is a good alternative considering high fault current interruption requirements, response time against fault current, and power losses.

A Solid-State Fault Current Limiting Device for VSC-HVDC Systems

2013 ◽  
Vol 14 (5) ◽  
pp. 375-384 ◽  
Author(s):  
D. Marene Larruskain ◽  
Inmaculada Zamora ◽  
Oihane Abarrategui, ◽  
Araitz Iturregi
Keyword(s):  
Solid State ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Overhead Lines ◽  
Fault Currents ◽  
Current Limiting ◽  
Current Limiter

Abstract Faults in the DC circuit constitute one of the main limitations of voltage source converter VSC-HVDC systems, as the high fault currents can damage seriously the converters. In this article, a new design for a fault current limiter (FCL) is proposed, which is capable of limiting the fault current as well as interrupting it, isolating the DC grid. The operation of the proposed FCL is analysed and verified with the most usual faults that can occur in overhead lines.

scholarly journals Development of a Voltage Compensation Type Active SFCL and Its Application for Transient Performance Enhancement of a PMSG-Based Wind Turbine System

2017 ◽  
Vol 2017 ◽  
pp. 1-12
Author(s):  
Lei Chen ◽  
Hongkun Chen ◽  
Jun Yang ◽  
Huiwen He
Keyword(s):  
Wind Turbine ◽  
Performance Enhancement ◽  
Low Voltage ◽  
Rapid Development ◽  
Test System ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Fault Current ◽  
Wind Turbine System ◽  
Voltage Compensation

Considering the rapid development of high temperature superconducting (HTS) materials, superconducting power applications have attracted more and more attention in the power industry, particularly for electrical systems including renewable energy. This paper conducts experimental tests on a voltage compensation type active superconducting fault current limiter (SFCL) prototype and explores the SFCL’s application in a permanent-magnet synchronous generator- (PMSG-) based wind turbine system. The SFCL prototype is composed of a three-phase air-core superconducting transformer and a voltage source converter (VSC) integrated with supercapacitor energy storage. According to the commissioning test and the current-limiting test, the SFCL prototype can automatically suppress the fault current and offer a highly controlled compensation voltage in series with the 132 V electrical test system. To expand the application of the active SFCL in a 10 kW class PMSG-based wind turbine system, digital simulations under different fault cases are performed in MATLAB/Simulink. From the demonstrated simulation results, using the active SFCL can help to maintain the power balance, mitigate the voltage-current fluctuation, and improve the wind energy efficiency. The active SFCL can be regarded as a feasible solution to assist the PMSG-based wind turbine system to achieve low-voltage ride-through (LVRT) operation.

scholarly journals Akats-korronteen mugaketa MMC bihurgailudun VSC-HVDC sistemetan

2017 ◽  
Author(s):  
Araitz Iturregi ◽  
Agurtzane Etxegarai ◽  
D. Marene Larruskain ◽  
Pablo Eguia ◽  
Oihane Abarrategui
Keyword(s):  
High Voltage ◽  
Direct Current ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Fault Current ◽  
Modular Multilevel Converter ◽  
Fault Current Limiter ◽  
Multilevel Converter ◽  
High Voltage Direct Current ◽  
Current Limiter

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.

scholarly journals Study of Resistive-Type Superconducting Fault Current Limiters for a Hybrid High Voltage Direct Current System

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 26 ◽  
Author(s):  
Lei Chen ◽  
Huiwen He ◽  
Guocheng Li ◽  
Hongkun Chen ◽  
Lei Wang ◽  
...  
Keyword(s):  
Direct Current ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Superconducting Fault Current Limiter ◽  
High Voltage Direct Current ◽  
Fault Current Limiters ◽  
Resistive Type ◽  
Current Limiter

In this paper, a hybrid high voltage direct current transmission system containing a line commutated converter and a voltage source converter is developed. To enhance the robustness of the hybrid transmission system against direct current short-circuit faults, resistive-type superconducting fault current limiters are applied, and the effectiveness of this approach is assessed. Related mathematical models are built, and the theoretical functions of the proposed approach are expounded. According to the transient simulations in MATLAB software, the results demonstrate that: (i) The superconducting fault current limiter at the voltage source converter station enables to very efficiently mitigate the fault transients, and owns an enhanced current-limiting ability for handling the short-line faults. (ii) The superconducting fault current limiter at the line commutated converter station is able to mildly limit the fault current and alleviate the voltage drop, and its working performance has a low sensitivity to the fault location. At the end of the study, a brief scheme design of the resistive-type superconducting fault current limiters is achieved. In conclusion, the application feasibility of the proposed approach is well confirmed.

scholarly journals Assessment of Appropriate MMC Topology Considering DC Fault Handling Performance of Fault Protection Devices

2018 ◽  
Vol 8 (10) ◽  
pp. 1834 ◽  
Author(s):  
Ho-Yun Lee ◽  
Mansoor Asif ◽  
Kyu-Hoon Park ◽  
Bang-Wook Lee
Keyword(s):  
Fault Location ◽  
Circuit Breaker ◽  
Point Of View ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Fault Current ◽  
Handling Performance ◽  
Fault Handling ◽  
Current Magnitude ◽  
Dc Line

The eventual goal of high-voltage direct-voltage (HVDC) systems is to implement HVDC grids. The modular multilevel converter (MMC) has been identified as the best candidate for the realization of an HVDC grid by eliminating the shortcomings of conventional voltage source converter (VSC) technology. The related research has focused on efficient control schemes, new MMC topologies, and operational characteristics of an MMC in a DC grid, but there is little understanding about the fault handling capability of two mainstream MMC topologies, i.e., half bridge (HB) and full bridge (FB) MMCs in combination with an adequate protection device. Contrary to the existing research where the fault location is usually fixed (center of the line), this paper considered a variable fault location on the DC line, so as to compare the fault interruption time and maximum fault current magnitude. From the point of view of fault interruption, AC and DC side transient analyses were performed for both MMC topologies to suggest the appropriate topology. The simulation result confirmed that the fault handling performance of an HB-MMC with a DC circuit breaker is superior due to the smaller fault current magnitude, faster interruption time, lower overvoltage magnitude, and lesser stresses on the insulation of the DC grid.

scholarly journals Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3159 ◽  
Author(s):  
Gao ◽  
Han ◽  
Zhang ◽  
Xiao ◽  
Zhao ◽  
...  
Keyword(s):  
Theoretical Calculation ◽  
Distribution System ◽  
Computer Aided Design ◽  
Voltage Source ◽  
Stable Operation ◽  
Fault Current ◽  
Calculation Methods ◽  
Dc Distribution ◽  
Current Limiting ◽  
Current Characteristics

The DC (Direct Current) distribution system based on the voltage source converter (VSC-DC) has become a research hotspot due to its various advantages. There are many plug-in devices in the VSC-DC distribution system, which may be damaged by the fault current. Therefore, studying the fault current characteristics and current limiting method is one of the key methods to ensure the safe and stable operation of the VSC-DC distribution system. Based on theoretical analysis and simulation calculations, this paper studies the causes, influencing factors, and current limiting methods of the fault current when the pole-to-pole fault occurs at the line side of plug-in devices in a ±10 kV VSC-DC distribution system. Firstly, based on the system topology, the decisive fault condition of fault current and the design principle of current limiting reactor value are analyzed. Secondly, the theoretical calculation methods of fault current and current limiting reactor value which satisfies the breaking capacity of DC circuit breaker are proposed. Finally, the accuracy of theoretical calculation methods is verified by simulation in PSCAD/EMTDC (Power Systems Computer Aided Design/ Electromagnetic Transients including DC). The research results could provide the theoretical calculation methods of the fault current and the current limiting reactor value of plug-in devices in the ±10 kV VSC-DC distribution system.

Sign in / Sign up

Export Citation Format

Share Document