Abstractsuperconducting fault current limiters sfcls of fer several benefits for electrical distribution systems, especially with increasing distributed. The resistive superconducting fault current limiters. Superconducting fault current limiter, multiple criteria decision making. Modeling and analysis of resistive type superconducting. Ieee transactions on power delivery 1 application of. In conclusion, the application feasibility of the proposed approach is well con. In the past few years there has been a significant rise in the shortcircuit current levels in transmission and distribution networks, it due to the increasing demands on power and the addition of sources of distributed generations. The program calculates the electromagnetic and thermal response of a superconductor to a timedependent overload voltage, with different possible cooling conditions for. Impact on superconducting fault current limiters on.
Resistive superconducting fault current limiters sfcl are characterized by very fast transition to the resistive state, automatic recovery after current. Emtpatp modeling of a resistive superconducting fault. Power flow analysis and optimal locations of resistive type superconducting fault current limiters xiuchang zhang1, harold s. There are many types of sfcl, and the resistive type sfcl uses the quench resistance of the high temperature superconductor 1, 2. Therefore, it is important to understand the dynamic. Bright abstractsuperconducting fault current limiters sfcls offer several bene. Dynamic breakdown characteristics of pancake coil model for. Bright abstractsuperconducting fault current limiters sfcls of.
Ruiz2, jianzhao geng1, boyang shen1, lin fu1, heng zhang1 and tim a. Spice model of hightemperature superconducting tape. It is proven that resistive sfcls have an inverse currenttime characteristic. Heat propagation improvement in ybcocoated conductors. Fault current limiter connected in series with the grid. Abstract the superconducting fault current limiter sfcls concept proposes two types of superconducting materials.
Close agreement between the model and experimental data has been observed in the faultcurrent tests of both short samples and the element of the rsfcl prototype. In order to introduce the high temperature superconducting faultcurrent limiters sfcl into electric power systems, we need a way to conveniently predict. Currenttime characteristics of resistive superconducting fault current limiters article pdf available in ieee transactions on applied superconductivity 222. Study of resistivetype superconducting fault current limiters for a hybrid high voltage direct current system. Basically there are two technical options for a superconducting fault current limiter concept, the resistive and the inductive fault current limiter. Resistivetype superconducting fault current limiters. It leads to the need of integration of novel protection systems such as the su perconducting fault current limiters sfcls, as the installation of these devices. Disclosed is a resistive superconducting fault current limiter capable of enhancing a current of a superconducting device thereof, capable of preventing heat generated at a linear coil, capable of removing a magnetic field generated through the linear coil when a normal current is applied to a circuit of a power system, and capable of using not only a biscco based superconducting device but. Todays superconducting materials can meet the performance requirements of.
The superconducting fault current limiter sfcl appears to be an ideal choice for fault current control. The resistive type sfcls is shown in line with the source and load fig. Modeling resistive superconducting fault current limiters. The final design of the high temperature superconducting partial core transformer and fault current limiter is then presented. Application of resistive high temperature superconducting. Performance analysis and measuring of optimal locations x. Superconducting faultcurrent limiters sfcl offer ideal performance in electrical power system. Power flow analysis and optimal locations of resistive type. Superconducting fault current limiters for micro grid. There are many types of sfcl, and the resistive type sfcl uses the quench resistance of the high temperature superconductor. Application of resistive superconducting fault current. Superconducting fault current limiter world scientific. Optimal analysis of resistive superconducting fault.
Interesting facts and figures about the superconducting fault current limiter and the field test. Study of resistivetype superconducting fault current. Fast pitching of the turbine blade control, dc chopper and nonlinear control schemes have already been proposed to limit the dclink voltage variations 68. Resistive superconducting fault current limiters in present and future power systems.
Dynamic simulations of resistive superconducting fault current limiters rsfcls. Application of multiple resistive superconducting fault current. To enhance the robustness of the hybrid transmission system against direct current shortcircuit faults, resistivetype superconducting fault current limiters are applied, and the effectiveness of. The increase in power generation and the grid interconnections result in higher levels of fault currents. Heat propagation improvement in ybcocoated conductors for superconducting fault current limiters d. Modeling resistive superconducting fault current limiters in. It reduces prospective fault currents to a lower manageable level. Superconducting fault current limiters latest developments at nexans superconductors. Based on conventional approaches for the integration of resistive type superconducting fault current limiters sfcls on electric distribution networks, sfcl models largely rely on the insertion of a step or exponential resistance that is determined by a predefined quenching time. Fault current limiters transformers superconducting fault.
Sfcl have zero impedance under the normal condi tion and large impedance under fault condition. Pdf implementation of resistive type superconducting fault. Implementation of resistive type superconducting fault current. Basically there are two technical options for a superconducting fault current limiter concept, the. The improvement can be made by enhancing the thermal conductivity of ybcoccs with no decrease in the electrical resistivity. There are three major type superconducting fault current limiters sfcls. Power flow analysis and optimal locations of resistive. If the current rises above the critical current value the resistance r sc. Many developers have chosen to use resistive type superconducting limiters due to their compact size, weight and lower cost.
This chapter gives an overview of the requirements and approaches for modeling resistive superconducting fault current limiters in power system transient simulators. This is to certify that the thesis titled modelling and analysis of resistive superconducting fault current limiter, submitted to the national institute of technology, rourkela by mr. Currenttime characteristics of resistive superconducting. Currenttime characteristics of resistive superconducting fault current limiters steven m. Coombs abstractin the past few years there has been a signi. Therefore, it is important to understand the dynamic characteristics of sfcls. Introduction s the countries develop and living values improve, energy demand grows significantly resulting in increased number of power plants and influx of electrical interconnections. The theme of the paper revolves around the design of resistivetype superconducting fault current limiters. The analysis and application of resistive superconducting. Introduction smart grid is a term used for future power grid which integrates the modern communication technology and renewable energy resources. The design process of a superconducting fault current limiter sfcl requires simulation and definition of its electrical, magnetic and thermal properties in form of. Close agreement between the model and experimental data has been observed in the fault current tests of both short samples and the element of the rsfcl prototype. Dynamic breakdown characteristics of pancake coil model.
We have developed a computer model for the simulation of resistive superconducting fault current limiters in three dimensions. The first superconducting module and the second superconducting module each include two. A superconducting fault current limiter includes a first superconducting module connected to an input terminal of a power system, a second superconducting module connected to an output terminal of the power system, and a connecting member interposed between the first and second superconducting modules. Us7463461b2 resistive superconducting fault current. The super conducting fault current limiter sfcl is one of the promising technologies to unravel fault current. Blair a thesis submitted for the degree of doctor of philosophy to. Modeling of resistive type superconducting fault current limiter. Jun 30, 2012 superconducting fault current limiters sfcl offer ideal performance in electrical power system. A fault current limiter fcl is a revolutionary power grid device that limits the problems due to increase in fault current levels. Modeling and analysis of resistive type superconducting fault.
Pdf implementation of resistive type superconducting. Such simulators are routinely used by power system engineers to predict the network behavior under various types of disturbances and find ways to keep the network stable and. Modeling and simulation of high temperature resistive. Nominal voltage 24 kv nominal current 1005 a ac withstand voltage 50 kv lightning impulse 125 kv max. Pdf application of multiple resistive superconducting. The design process of a superconducting fault current limiter sfcl requires simulation and definition of. Original application, presenting a first assessment of sfcls application in fpsos. The term includes superconducting, solidstate and inductive devices. To enhance the robustness of the hybrid transmission system against direct current shortcircuit faults, resistive type superconducting fault current limiters are applied, and the effectiveness of. However, superconducting fault current limiting technology can stand up to all. This will allow the behavior of multiple sfcls in a system to be fully understood during faults and other transient conditions, which will consequently permit the coordination of the sfcl devices to ensure.
At the end of the study, a brief scheme design of the resistivetype superconducting fault current limiters is achieved. Up to now no simulation model of sfcl has been validated or introduced in the library of matlab software. Optimal analysis of resistive superconducting fault current. These items of equipment limit the shortcircuit current by changing from the superconducting state to the normalconducting state well before the first peak value of the shortcircuit current is reached. This will allow the behavior of multiple sfcls in a system to be fully understood. To enhance the robustness of the hybrid transmission system against direct current shortcircuit faults, resistive type superconducting fault current limiters are applied, and the effectiveness of this approach is assessed. The superconducting components limit the fault current by transition to the resistive state. Us7345858b2 resistive superconducting fault current. Blair, steven macpherson 20 the analysis and application. First commercial medium voltage superconducting fault. There are three primary types of scfls under development. The 3phase resistive limiter with the highest voltage today including 15 project partners. The current limiting performance of the developed step resistance sfcl.
Comparison between inductive and resistive sfcl in terms of. A fault current limiter fcl, or fault current controller fcc, is a device which limits the prospective fault current when a fault occurs e. Noe, eucas short course, power applications fault current limiters kitzentrum energie superconductingfault current limiters howto design a resistive fault current limiter. Fault current, micro grid, smart grid, superconducting fault current limiter, wind farm, pv cell. During the normal operation the current is flowing through the superconducting element r sc dissipates low energy. Fault current limiter selection considerations for utility engineers, 2014. Pdf application of multiple resistive superconducting fault. Heat propagation improvement in ybcocoated conductors for. The resistive superconducting fault current limiters rsfcls have been launched and introduced into the. Ieee transactions on power delivery 1 application of multiple. Superconducting fault current limiter sfcl based on high temperature superconductors hts is an enabling technology for the extensive fault current limitation when compared to conventional circuit breakers cbs. An electric coil includes bifilar pancake coils electrically connected to an adjacent pancake coil so that current flowing in adjacent turns of adjacent pancake coils flows in opposite directions at all radial region of the coil assembly. Pancake coil model for resistive superconducting fault current limiters n. Implementation of resistive type superconducting fault.
Superconducting fault current limiters sfcls may play an important role in powerdense electrical systems. Related content concept of a current flow diverter for accelerating the normal zone propagation. Modeling and analysis of resistive type superconducting fault current limiters for coordinated microgrid protection. Modelling and analysis of resistive superconducting fault.
While resistive, the component acts like a normal resistor and is heated during the limitation time 120 ms in. Emtpatp modeling of a resistive superconducting fault current limiter. The slow normal zone propagation velocity nzpv in commercial second generation high temperature superconductor coated conductors 2g hts ccs upon partial quenching is problematic for resistive superconducting fault current limiters rsfcls since it reduces the performance of rsfcls and may lead to the development of destructive hot spots. Application of multiple resistive superconducting fault current limiters for fast fault detection in highlyinterconnected distribution systems steven m. High temperature superconducting partial core transformer. This transition occurs automatically and triggers the current to transfer into a current limiting coil state while carrying load current from other nonor reactor.
In order to compare the fault current limitation properties of the two sfcl models, a threephase to ground fault with negligible fault resistance was initialized at the domestic loads network fault 2 in the grid model shown in fig. In this study, our research group suggests using superconducting fault current limiters sfcls to solve the dc fault issue in the hybrid hvdc, and it is because sfcl is a very competitive currentlimiting device with excellent performance superiorities, such as automatic trigger and rapid response 610. Pdf study of resistivetype superconducting fault current. In this paper, a hybrid high voltage direct current transmission system containing a line commutated converter and a voltage source converter is developed. The analysis and application of resistive superconducting fault current limiters in present and future power systems steven m. Burt, member, ieee abstractsuperconducting fault current limiters sfcls may play an important role in powerdense electrical systems. Superconducting fault current limiter sfcls is innovative electric equipment which has the capability to reduce fault current level within the first cycle of fault cu r rent. The design of sfcl has to be both flexible, to allow an easy adaptation to the specific requirements of each particular application, and a high quality standard with reproducible properties. Based on conventional approaches for the integration of resistivetype superconducting fault current limiters sfcls on electric distribution networks, sfcl models largely rely on the insertion of a step or exponential resistance that is determined by a predefined quenching time. An optimal design approach for resistive and inductive. An optimal design approach for resistive and inductive superconducting fault current limiters via mcdm techniques r. Use of rsfcls in floating, production, storage and offloading fpso platforms. Kuwata abstract toward the reliable and rational insulation design of resistive superconducting fault current limiters rsfcl, we have.
Study of resistive type superconducting fault current limiters for a hybrid high voltage direct current system article pdf available in materials 121. Multiscale model of resistive type superconducting fault current limiters based on 2g hts coated conductors to cite this article. Multiscale model of resistivetype superconducting fault. The analysis and application of resistive superconducting fault. Application of resistive high temperature superconducting fault current limiters in powerstation service plant klaus pfeiffer, harald schwarz chair of power distribution and highvoltage technology brandenburg university of technology waltherpauerstreet 5, d03046 cottbus germany abstract. Circuit breakers must be rated to clear faults for a particular system fault current level. To enhance the robustness of the hybrid transmission system against direct current shortcircuit faults, resistivetype superconducting fault current limiters are applied, and the effectiveness of this approach is assessed. Pdf resistivetype superconducting fault current limiters. Todays superconducting materials can meet the performance requirements of power system components. Coombs1 background with the persistent increase of conventional system.
Modeling and simulation of resistive superconducting fault. Resistive superconducting fault current limiter simulation and design. Application of multiple resistive superconducting fault current limiters for fast fault detection in highlyinterconnected distribution systems. Blair, the analysis and application of resistive superconducting fault current limiters in present and future power systems, ph. Implementation of resistive type superconducting fault current limiters in electrical grids. Abstract before application of a superconducting fault current limiter sfcl in a power system, it can be useful to. The superconducting fault current limiter is configured to provide a minimized inductance and low resistance in a normal state of operation.
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