| 引用本文: | 王宗杰,郭志忠.节点类型扩展潮流计算的灵敏度分析[J].哈尔滨工业大学学报,2017,49(3):35.DOI:10.11918/j.issn.0367-6234.2017.03.005 |
| WANG Zongjie,GUO Zhizhong.Sensitivity factor analysis for bus type extended load flow[J].Journal of Harbin Institute of Technology,2017,49(3):35.DOI:10.11918/j.issn.0367-6234.2017.03.005 |
|
| 摘要: |
| 为改善传统灵敏度对潮流的计算分析，在PQ, PV, Vθ三类节点类型基础上，提出了基于节点类型扩展潮流计算的灵敏度计算方法.采用PQV，Qθ，QV，PQVθ等扩展节点类型推导了在节点类型扩展潮流计算的修正方程基础上的相关常用的灵敏度计算公式.算例分析结果表明:在潮流计算中含有新的扩展节点类型时，常规灵敏度分析方法的准确性明显下降，而使用基于节点类型扩展潮流计算的灵敏度分析方法仍能获得很好的精度.算例验证了所推导的计算公式的合理性.提出的基于节点类型扩展潮流的灵敏度计算方法可以提高在大规模系统中的准确性，能够更好地模拟潮流变化的规律.
|
| 关键词: 电力系统 灵敏度 潮流计算 节点类型 潮流调整 |
| DOI：10.11918/j.issn.0367-6234.2017.03.005 |
| 分类号:TM732 |
| 文献标识码:A |
| 基金项目:国家重点基础研究发展计划(2012CB027082) |
|
| Sensitivity factor analysis for bus type extended load flow |
|
WANG Zongjie,GUO Zhizhong
|
|
(School of Electric Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)
|
| Abstract: |
| To improve conventional sensitivity factor analysis for load flow calculation that only considers three bus types: PQ, PV and Vθ, this paper proposes a sensitivity factor analysis method for bus type extended load flow calculation. By considering PQV, Qθ, QV, PQVθ extended bus types, this paper derives the sensitivity factor calculation formulas based on the correct equations of bus type extended load flow. Numerical tests given in this paper show that, when new bus types are involved in a load flow calculation, the precision of conventional sensitivity analysis method reduces obviously, whereas the proposed method can still obtain a better result. It also demonstrates the effectiveness of the derived sensitivity analysis method. By applying the proposed method, it can increase the accuracy in large-scale networks and better simulate the change of load flow.
|
| Key words: power systems sensitivity factor load flow calculation bus type load flow adjustment |
