全球能源互联网（英文）2021，Vol.4Issue(3)：239-250,12.DOI:10.14171/j.2096-5117.gei.2021.03.002
考虑大规模风电外送的半波长输电系统稳态电压控制方法
Steady-state voltage-control method considering large-scale wind-power transmission using half-wavelength transmission lines
摘要
Abstract
Half-wavelength transmission can transmit large-scale renewable energy over very long distances.This paper proposes an improved steady-state voltage-control method for half-wavelength transmission systems considering large-scale wind-power transmission.First,the unique voltage characteristics of half-wavelength lines are deduced based on the distributed parameter model.In the secondary voltage-control level,reactive power-transmission limits of half-wavelength lines are introduced as another control objective except for tracing the pilot bus voltage reference.Considering the uncertainty and fluctuation of wind power,the overvoltage risk-assessment method of half-wavelength lines is presented to determine specific voltage-control strategies.Simulation results demonstrate that the proposed voltage-control method delivers superior tracking performance according to a voltage reference value and prevents the overvoltage risk of half-wavelength lines effectively in different wind-power penetrations.关键词
半波长输电/二级电压控制/风电/无功控制Key words
Half-wavelength lines/Secondary voltage control/Wind-power transmission/Reactive power regulation引用本文复制引用
Hao Tian,Hongzheng Liu,Huan Ma,Pengfei Zhang,Xiaohui Qin,Changhui Ma..考虑大规模风电外送的半波长输电系统稳态电压控制方法[J].全球能源互联网（英文）,2021,4(3):239-250,12.基金项目
This work was supported by State Grid Corporation of China,Projects under Grant 520626200031 and National Natural Science Foundation of China,No.51877200. （）
