基于ANSYS的饱和铁心型限流器建模与仿真

Modeling and Simulation of Saturated Iron Core Fault Current Limiter Based on ANSYS

为了解决传统的饱和铁心型故障限流器存在的限流能力差、体积和重量过大等缺点,提出一种改进的饱和铁心型故障限流器。通过改进传统饱和铁心型故障限流器的结构和工作原理,增大了限流器限流阻抗与稳态阻抗的比值,提升了限流器的限流能力,同时减小了饱和铁心型限流器的体积、重量和损耗。利用ANSYS有限元仿真软件,在典型的10 kV应用场景下对改进的饱和铁心型故障限流器及其励磁系统进行建模与仿真。仿真结果验证了改进的饱和铁心型故障限流器理论的正确性,显示了利用ANSYS建立电磁场与电路模型及进行仿真分析的优越性。

To solve problems such as poor current limit capacity,overlarge volume and weight,and so on of traditional saturated iron core fault current limiter (SICFCL),this paper proposes a kind of improved SICFCL.By improving structure and working principle of the traditional SICFCL,ratio of current limit impedance of the limiter to the steady-state impedance was increased,current limit capacity was promoted and volume,weight and loss of the SICFCL were all reduced at the same time.Using ANSYS finite element simulation software,it makes modeling and simulation of the improved SICFCL and the excitation system in typical 10 kV application scenario.The simulation result verifies correctness of the improved SICFCL and indicates advantages of using ANSYS to establish models of electromagnetic field and circuit for simulating analysis.