| 考虑不确定功率注入的安全约束经济调度模型非有效约束识别方法 | |
| 丁涛 ; 柏瑞 ; 郭庆来 ; 孙宏斌 ; 黄灿 ; 李方兴 ; DING Tao ; BO Rui ; GUO Qinglai ; SUN Hongbin ; HUANG Can ; LI Fangxing | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 安全约束经济调度 非有效约束 单纯形体 贪婪算法 不确定性 nuclear power plant human-machine interface image entropy quantitative assessment TM73 |
| 其他题名 | Identification of Inactive Constraints for SCED Model Considering Uncertain Power Injection |
| 中文摘要 | 随着电网规模的扩大,数量庞大的安全约束给在线经济调度问题带来了极大的挑战,如何判别并剔除其中的非有效约束成为大电网安全约束经济调度问题研究的新方向。考虑大规模新能源并网给系统带来的不确定性,提出一种可快速有效地识别非有效安全约束的新方法。首先给出不确定情况下非有效安全约束的定义和识别非有效约束的充分必要条件;考虑到判别过程中求解大量线性规划的耗时问题,将原优化模型的可行域进行松弛,根据松弛模型的特殊性,利用连续贪婪算法快速剔除部分非有效约束,再利用充分必要条件进行离线计算,进而识别出其余非有效约束。通过24个时间段的9节点系统和96个时间段的IEEE 118节点系统仿真,验证了所提方法的快速性和有效性。另外,仿真结果页可为调度运行人员提供必要信息,统计出可能产生电力传输阻塞的线路情况。; With the constant expansion of power grid, a large number of security constraints have put tremendous challenges to the online economic dispatch. An efficient tool to eliminate the inactive constraints becomes necessary for security constraints economic dispatch(SCED) in large power systems. In this paper, considering the uncertainty of renewable energy integration, a fast and effective method to identify the inactive security constraints was proposed. Firstly, the definition of uncertain inactive security constraints and a necessary and sufficient condition to identify those were presented respectively. Considering the time-consuming identification, we relaxed the feasible region of original SCED model and utilized greedy algorithm to quickly eliminate part of inactive constraints. Then another necessary and sufficient condition was proposed and verified, where the remaining inactive constraints could be identified. Through the simulation of 24-time periods 9-bus system and 96-time periods IEEE118-bus system, the speed and effectiveness of proposed method were verified. Moreover, the results can help dispatch operators to locate the transmission lines with the highest congestion risk. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/142762]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 丁涛,柏瑞,郭庆来,等. 考虑不确定功率注入的安全约束经济调度模型非有效约束识别方法[J],2016, 2016. |
| APA | 丁涛.,柏瑞.,郭庆来.,孙宏斌.,黄灿.,...&LI Fangxing.(2016).考虑不确定功率注入的安全约束经济调度模型非有效约束识别方法.. |
| MLA | 丁涛,et al."考虑不确定功率注入的安全约束经济调度模型非有效约束识别方法".(2016). |
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