中国电机工程学报2017，Vol.37Issue(z1)：39-46,8.DOI:10.13334/j.0258-8013.pcsee.170690
高比例可再生能源电网功率平衡的实时调度临界时间尺度研究
On the Critical Timescale of Real-time Dispatch Considering Power Balancing Under Power Systems With High Proportional Intermittent Power Sources
摘要
Abstract
To address the side effects of intermittent power uncertainty towards power balancing, real-time dispatch must participate into the power balancing of high proportional renewable energy systems. To participate into power balancing, real-time dispatch must satisfy two conditions of constraints:first, take the accommodation reserve from short-term scheduling as one constraint to balance the power imbalance caused by short-term power forecasting; second, take the power balancing capability of AGC as another constraint to properly set up the timescale of real-time dispatch. Based on the dispatching control system, this paper applied the statistical forecast functions which describe the forecast uncertainty of intermittent power sources, and proposes an analytical formulation which describes the relationship of critical timescale for real-time dispatch with factors such as the amplitude and time constant of the uncertain function and the operational proportion of intermittent power sources. This analytical formulation has provided theoretical evidence on ascertaining the real-time dispatch timescale from the perspective of power balancing. The power balancing can be achieved as long as the real-time dispatch timescale is less than the critical real-time dispatch.关键词
可再生能源/功率不确定度/α函数/功率平衡/调度控制体系/实时调度时间尺度Key words
renewable energy resources/power generation uncertainty/α function/power balance/dispatch control system/real-time dispatch timescale分类
信息技术与安全科学引用本文复制引用
王宗杰,郭志忠,王贵忠,吴志琪..高比例可再生能源电网功率平衡的实时调度临界时间尺度研究[J].中国电机工程学报,2017,37(z1):39-46,8.基金项目
国家重点基础研究发展计划项目(973 项目)(2012CB 027082).The National Basic Research Program of China (973 Program) (2012CB027082). （973 项目）
