各种限制电网短路电流措施的应用与发展

文章首先介绍了近年来短路电流增大过快给电网带来的一系列危害，然后从电网结构与变电站两个层面全面分析了各种限制短路电流的措施。电网结构方面的措施包括合理规划电网结构及电源接入方式、发展直流输电等；变电站方面的措施包括采用高阻抗设备、短路电流限制器等。文章比较其各自的优缺点，描述各自在实际中的应用及今后的发展方向。最后阐述了两种限制不对称短路电流的措施。

Application and development of methods on limiting power grid's short-circuit current

The paper firstly introduces a series of harm that the short-circuit current's fast increments brings.When viewed from power network composition and electric substation,t he methods of limiting short-circuit current are analyzed fully.The methods on network composition include proper power system planning,appropriate power grid connection,a nd DC transmission etc.The methods on substation include using high-impedance facilities and short-circuit current limiter etc.It discusses their merits and drawbacks,an...