中国电机工程学报2016，Vol.36Issue(23)：6389-6400,12.DOI:10.13334/j.0258-8013.pcsee.160429
基于电压水平约束的电网负荷安全域
Grid Load Security Domain Based on Voltage Level Constraint
摘要
Abstract
Voltage stability limits will vary with running states, and far below the normal safety level. Therefore, the analysis of node load security domains based on voltage security level constraints so that the load of each node and reactive power compensation are limited to the region, to maintain grid voltage security, will be more meaningful. The analysis based on Thevenin equivalent model found the load security domains are existed indeed. So, based on line models, the parameters and the rated voltages, the load security domains of both ends of lines had been analyzed to get, that were, enclosed by eccentric arc and P and Q positive axis. By matching of the security domains on both sides of transformers, the load security domains of each node in grid had been obtained; by adjusting the ratio, adjustable the load security domains at the line ends of low-voltage side; reactive power compensation was deemed load adjusted to accommodate the load security domains at the line end of high-voltage side. Case studied to verify the feasibility of load security domain analysis. The study has practical significance distribution grid operation and reactive planning.关键词
电压水平约束/负荷安全域/安全域匹配/无功补偿/变比调节Key words
voltage level constraint/load security domain/load security domain matching/reactive power compensation/ratio adjustment分类
信息技术与安全科学引用本文复制引用
竺炜,凌晨,张玉龙,茹梁..基于电压水平约束的电网负荷安全域[J].中国电机工程学报,2016,36(23):6389-6400,12.基金项目
湖南省自然科学基金项目(2016JJ4001)；湖南省教育厅重点项目(16A006)。Project Supported by the Natural Science Foundation of Hunan Province (2016JJ4001) （2016JJ4001）
The Research Foundation of Education Bureau of Hunan Province (16A006) （16A006）
