袁旭峰,龙燕,许伟杰,熊炜,邹晓松.基于改进同步时间法梯级水电站群间协调控制策略的研究[J].电测与仪表,2014,51(10):. YUAN Xu-Feng,LONG Yan,XU Wei-Jie,XIONG Wei,ZOU Xiao-Song.Study on the Coordinate Control Scheme Based on Improved Synchronous Time Method for Cascade Hydropower Plants[J].Electrical Measurement & Instrumentation,2014,51(10):.
基于改进同步时间法梯级水电站群间协调控制策略的研究
Study on the Coordinate Control Scheme Based on Improved Synchronous Time Method for Cascade Hydropower Plants
Using the function of GPS time transfer, an improved synchronization time method has been put forward to ensure clocks of each power plant participating in frequency regulation synchronized, and to avoid the integral difference of frequency offset, so a coordinated control can be realized for decentralized frequency regulation. Taking Cascade hydropower plants in a provincial power grid as the study case, this paper has put forward a coordinated control scheme based on improved synchronization time for cascade hydropower plant group of AGC, to realize ACE control of load power frequency deviation on tie-lines of each power plant connected to the grid, and to keep the regional power grid frequency constant. Finally, by building a three regional equivalent model and a control scheme of cascade hydropower plants in PSCAD/EMTDC, the proposed method is tested on 3-geneator 9-bus system to verify its feasibility and efficiency.
