摘要
针对风速的随机性和间歇性对电力系统调度与控制带来的困难,提出一种风电系统有功调度的二层结构调控策略,即在在线调度周期内,借助系统内常规发电机组的配合对预调度周期内的发电计划进行再校正以及在自动控制时间级内通过与风电机组紧密关联的自动发电控制(automationgenerationcontrol,AGC)机组的实时偏差调控对在线调度计划外的功率波动进行调整的策略。利用与风电机组、相关非风电机组及其供电负荷等有关的网络源流路径电气剖分信息,计算非风电机组参与发电计划再校正的功率调整因子及参与风电实时功率波动控制的关联AGC机组之间的负荷分配因子。算例表明,二层结构的调控策略可以有效跟踪风电与负荷功率的波动或预测偏差,从而提高整个系统的运行质量。
Randomicity and intermittence of wind speed make power system dispatch become difficulty. The paper presents a two-layer strategy for wind power system dispatch and regulation. The strategy can revise pre-dispatch scheme for traditional generators in online dispatch time scale and trace the fluctuation of real-time power output by regulating the AGC （automation generation control） generators related to wind generators in AGC time scale. By the electrical dissecting information of paths among wind generators, related traditional generators and their loads, adjusting factors for revising traditional generating scheme and load distribution factors for regulating the AGC generators related to wind generators can be computed. Example shows the strategy can effectively trace the fluctuations or forecasting errors of wind and load power, and enhance the operation quality of entire power system.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2008年第16期51-58,共8页
Proceedings of the CSEE
基金
国家自然科学基金项目(50477008)
高等学校博士学科点专项科研基金项目(20040213031)
黑龙江省自然科学基金项目(E0326)~~
关键词
电力网络
风电
调度
控制
电气剖分
electrical power network
wind power
dispatch
regulate
electrical dissecting
