摘要
城市电网紧凑化输电采用非正弦交流输电方式实现对原有交流线路的增容改造,针对电缆线路采用的方波交流输电方式,基于电缆的热路模型,采用傅里叶变换,计算了原有交流电缆的方波载流量,计算结果可为后续的增容改造工程提供设计依据和数据支撑。
In order to make full use of the original transmission corridor,and improve grid transmission capacity,a new compact technology of power transmission in urban power grid is put forward.This technology adopts a non-sinusoidal AC transmission to achieve the capacity transformation of the original AC lines. For the AC square-wave transmission mode,the paper calculates the square-wave current-carrying capacity with using thermal circuit model and Fourier transform.These calculation results can provide basic data for design in the subsequent improvement projects.
出处
《东北电力大学学报》
2015年第6期12-16,共5页
Journal of Northeast Electric Power University
关键词
交流电缆
方波
载流量
FOURIER变换
AC cable
Square wave
Current carrying capacity
Fourier transform
