超导故障限流器增强智能电网稳定性

Sohaib Ahmed, A. Khaliq, Syed Noman ud Din, Sami ud Din
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引用次数: 4

摘要

对能源的需求日益增加。为了满足这一需求,分布式发电机组与传统电网相结合。这种一体化不仅影响电网规划,而且影响配电网的运行。本文将基于双馈感应发电机(DFIG)的风力发电机组和柴油发电机组与常规电网相结合。这种渗透导致故障电流水平增加。为了减轻故障电平的增加,在系统中引入了电阻式超导故障限流器。SFCL不仅可以最大限度地降低故障电流水平,而且可以改善系统在不同故障情况下的电压分布、谐波和暂态稳定性。利用MATLAB/Simulink进行了研究,重点研究了基于风力发电机组、常规电网和柴油发电机组参数的DFIG的有功功率和无功功率。
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Stability enhancement in smart grid by using superconducting fault current limiter
Demand of energy is increasing day by day. To fulfill this demand, distributed generation (DG) units are integrated with conventional grid. This integration not only effect grid planning but also impacts on operation of distribution grid. In this paper Doubly fed induction generator (DFIG) based wind turbine and diesel generator is penetrated with conventional grid. This penetration causes increase in fault current level. To mitigate this increase in fault level, Superconducting fault current limiter (SFCL) of resistive type is introduced in a system. SFCL not only minimize the fault current level but also improve the voltage profile, harmonics and transient stability of a system in case of different faults. The study is carried out using MATLAB/Simulink with special focuses on active and reactive power of the DFIG based wind turbine, conventional grid and diesel generator parameters.
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