This paper presents a magnetically controlled series compensation-fault current limiter (MCSC-FCL) which is composed of a magnetically controlled reactor (MCR) and a compensation capacitor. The device is improved from the traditional thyristor-controlled series compensation (TCSC), which has the characteristics of small output harmonics and simple control. The traditional saturated iron-core reactor is improved to increase the adjustable range of output reactance. During the fault, the MCR is connected to the grid alone to limit fault current; when the grid is normal, MCR and capacitor are used in series compensation mode. It effectively improves the utilization rate of the traditional current limiter MCR. In order to verify the effectiveness of the proposed MCSC-FCL, this paper analyzes the control characteristics of reactor models with different air gap structures by JMAG finite element analysis software, and verifies the voltage regulation characteristics and fault current limitation capabilities on MATLAB/Simulink platform.

本文提出了一种磁控串联补偿故障限流器（MCSC-FCL），它由一个磁控电抗器（MCR）和一个补偿电容器组成。该器件是对传统晶闸管控制串联补偿（TCSC）的改进，它具有输出谐波小和控制简单的特点。对传统的饱和铁芯电抗器进行了改进，以增加输出电抗的可调范围。故障期间，MCR仅连接到电网以限制故障电流。当电网正常时，MCR和电容器用于串联补偿模式。它有效地提高了传统限流器MCR的利用率。为了验证提议的MCSC-FCL的有效性，