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Study of Fault Current Limiter Based on Magnetic Controllable Reactor

Author: ChengPeng
Tutor: WangJianYuan
School: Tohoku Electric Power University
Course: Proceedings of the
Keywords: Magnetically controlled saturated reactor Fault current limiter Short-circuit current
CLC: TM471
Type: Master's thesis
Year: 2010
Downloads: 88
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Abstract


With the development of the electric power industry , electric power systems have been expanding , new , higher requirements for grid security, stability , reliable operation . As safe and reliable operation of the power system one of the important measures , short circuit fault current limiter has become a hot topic in the current power system studies . First of all, the elaborate the magnetic saturation controllable reactance structure works , the electromagnetic equations derived under the reactor working condition . Build a simulation model of the reactor according to the relationship between the variables in the electromagnetic equations , and analyze the characteristics . Theoretical analysis shows that the magnetically controlled saturated reactor smaller harmonics, fast response speed , approximately linear voltage characteristics advantages . Second, to discuss the working principle of the magnetron -type fault current limiter , normal pass flow state , the process of fault current limiter state . Several major technical indicators of magnetron -type fault current limiter definition, interpretation, analysis of its performance . For a current limiter several important parameters when normal through-flow state , fault current limiters state established constraint relationship between them . Respectively conducted simulation studies based on Matlab software , the simulation results show that the magnetron type fault current limiter effectively limit the short circuit fault current the different state current limiter research content . Finally, a detailed analysis of the response speed of the magnetron -type fault current limiter and its associated main factors . Further discussion on how to improve the speed of response , on this basis , to determine the scope of magnetron -type fault current limiter core winding tap . All of the above work both from the theoretical and simulation studies to demonstrate the feasibility and advantages of magnetron -type fault current limiter , which laid the foundation for its follow-up research and development .

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Reactor > Current limiting reactors
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