摘要
为提高半不变量概率潮流算法的实用性,提出了一种多机平衡概率潮流计算方法。在传统半不变量概率潮流算法的基础上,该方法通过修正待求变量对节点注入功率的灵敏度矩阵,实现了计及系统常规调频特性及常规能源与间歇式能源互补策略对系统潮流分布的影响。算例分析部分通过IEEE标准节点系统与实际省级电网模型的仿真分析验证了所提算法的准确性与实用性。
An improvement of probabilistic load flow based on cumulant method has been proposed in this paper to improve the calculation accuracy by considering multi-slack strategy. Compared with conventional analytical method, with modifying of the sensitivity matrix, the unbalanced power can be distributed fitting by system physical attribute in the proposed method. The accuracy and practicality of this method is testified by the 4 IEEE systems and a real power case.
出处
《电网技术》
EI
CSCD
北大核心
2015年第5期1337-1342,共6页
Power System Technology
基金
国家自然科学基金资助项目(51407165)
国网公司科技项目(DZ83-14-001
DZ71-14-004)~~
关键词
概率潮流
半不变量法
多机平衡
在线潮流
probabilistic load flow
cumulant method
multi-slack
online load flow
