Optimised and pre-emptive strategies for on-load tap changing transformer control relays
作者: C.A. SmithS.C. PottsM.A. Redfern
论文集英文名称: Eighth IEE International Conference on Developments in Power System Protection
来源数据库: IET
DOI: 10.1049/cp:20040177
关键词: on load tap changerspower system faultspower system protectionpower transformer protectionrelay controlrelay protectionvoltage control
原始语种摘要: The paper presents two strategies that enhance the voltage control of on-load tap changing transformers (OLTC). Simulation results demonstrate improvements in the voltage recovery times following a disturbance and that the schemes do not incur additional tap changes. These schemes also avoid the use of communications between automatic voltage control (AVC) relays associated with the network. The source drop compensation strategy is developed to determine the voltage condition of the upstream feeder to optimise the time grading between series operating OLTCs. This reduces the time delays usually required to eliminate reverse tap changes and hunting between units. The scheme improves voltage recovery times and hence the voltage quality. The duty of responsibility algorithm has been...
全文获取路径: IET 

  • control 控制
  • changing 更换弹种
  • between 在中间
  • developed 开发
  • deviation 偏差
  • necessary 必要的
  • voltage 电压
  • system 
  • strategy 战略
  • faster 加快