英语翻译I ) Currenr limiting inductorsOne of the most common sol

英语翻译
I ) Currenr limiting inductors
One of the most common solutions applied today is the installation of air-core current limiting inductors (CLI).These CLI are usually installed,although not limited to,in tie buses,in transformer tertiaries,and in series with the transmission line.When applying this solution it is important to analyze the impact of these devices in power flows and voltage stability of the system.
The most relevant parameter of course,is the selection of the inductive reactance to install in series with the line.A way to do this is illustrated in the Appendix.
2) Thyristor controlled series inductor
The concept of a series inductor,thyristor-controlled,has also been proposed in the literature.Control of the thyristor firing angle dictates the moment in which the inductor is inserted in the circuit.This control regulates the average magnitude of the inductance and hence its current limiting effect.This continued regulation can also he used to adjust power flows in the transmission line.One of the disadvantages of this concept is harmonic generation and the required use of filters.
3) Fault current limiter with series capacitor and inductor
Similar to the former concept,another FCL has been proposed consisting of a series capacitor tuned at the fundamental frequency with a series inductor,so that these two devices are transparent to the network in steady state.The capacitor is bypassed and controlled by antiparallel thyristors.This concept can be slightly modified so that the capacitive reactance is greater than the inductive reactance and hence in steady state there is a degree of series compensation.In this way,the FCL not only has a current limiting function,but also enhances power transfer and stability of the system.
4) Fault current limiters based on power electronics
Other FCL configurations have been proposed in the literature,based on power electronics.These current limiters normally consist of a semiconductor (i.e.,GTO) connected in series with the line in each of the line phases.In parallel with this semiconductor element,a current limiter impedance is connected.When a fault is detected,the normally conducting GTOs are turned off and the current is bypassed to the parallel impedance,which limits the short circuit current.A varistor is installed in parallel with the GTO's to absorb the energy trapped in the circuit inductance when the thyristors are turned off,thus limiting the overvoltages developed through them.
一楼是机译的吧- -我要手译的，

1 ) 电流限制指示器
目前应用得最普遍的方法之一是安装气芯电流限制指示器(CLI).这些CLI通常安装在——虽然不限于——联络母线上、变压器臂翼上以及和与传输线串联安装.当采用这种解决方案时,很重要的是要分析这些设备对系统电流和电压稳定性的影响.
当然,最重要的关联参数是选择在串口中与传输线一起安装的感应电阻.这么重的方法在附录中有说明.
2) 闸流晶体管控制的串口指示器
文献中也提到了闸流晶体管控制的串口指示器的概念.对闸流晶体管发射角度的控制可主导指示器被接入电路的时间.这种控制可调节感应系数的平均幅度进而调节其电流限制效果.这种持续的调节也可被用来调节传输线中的电流.这种概念的劣势之一是会产生谐波以及需要使用滤波器.
3) 带串联电容器和感应器的缺陷电流限制器
与前一概念类似,另一种由一个调整为基波频率、并带有串联感应器的串联电容器组成,以便这两个设备以稳定的状态对整个网络透明的FCL概念也被提及.这个电容器被绕开了并被反并联的闸流晶体管所控制.这个概念可以略微调整一下,以便容抗大于感抗,因而在稳定状态下能够有一定程度的串联补偿.通过这种方式,FCL不仅具有电流限制功能,还能增强系统的电力传输和稳定性.
4)基于工业电子学的缺陷电流限制器
基于工业电子学,文献中还提到了其他的FCL配置.这些电流限制器通常由一个与每个线项的传输线串联安装的半导体（例如,矩形脉冲断开GTO）组成.一个电流限制器阻抗与这个半导体器件并联连接.当感应到缺陷后,常规运作的GTO被关闭,电流被接到旁路的并联阻抗上,以避免短路电流.与GTO并联安装的有一个压敏电阻,用来吸收闸流晶体管关闭后线路自感应产生的能量,因而限制由于他们而产生的超高电压.