| 摘要: |
| 为分析可再生能源并网中可能出现的电力系统小扰动稳定性问题，采用小扰动稳定性动态评估的方法，提出基于DSA Tools实现小扰动稳定性的综合评估。通过采用特征值分析、故障分析、单机无限大系统扫描和小扰动稳定性极限搜索等方法，对IEEE14节点系统和IEEE145节点系统的小扰动稳定性进行分析。研究结果表明IEEE14节点系统小扰动稳定性较好，IEEE145小扰动稳定性则较差。另外，研究表明DSA Tools软件和SSAT分析工具可应用于电力系统预警方案设计和系统保护框架策略的优化。 |
| 关键词: 小扰动稳定性 电力系统安全评估 DSA Tools SSAT |
| DOI：DOI: 10.19783/j.cnki.pspc.200650 |
| 投稿时间：2020-06-08修订日期：2020-11-02 |
| 基金项目:国家自然科学基金项目资助(61440030)；河南省自然科学基金研究计划项目资助(162300410259) |
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| Application of DSA Tools on power system small signal stability security assessment |
| WANG Xingyu |
| (Guodian Technology & Environment Group Corporation Limited, Beijing 100039, China) |
| Abstract: |
| In order to analyze the small signal stability issue, something which may occur as renewable energy sources connect to the grid, this paper applies power system small signal stability dynamic assessment and proposes the use of DSA Tools software to comprehensively evaluate the small signal stability. By adopting methods such as eigenvalue analysis, contingency analysis, single machine infinite bus scan and small signal stability limit search, it analyzes the small signal stability of the IEEE14 and IEEE145 bus test networks. The results show that the IEEE14 bus test network has better small signal stability, but that of the IEEE145 bus test network is worse. Moreover, it is indicated that DSA Tools software and SSAT analysis tools could be applied to the design of an early warning scheme for power system and the optimization of a system protection framework strategy.
This work is supported by National Natural Science Foundation of China (No. 61440030) and Research Program of Henan Natural Science Foundation (No. 162300410259). |
| Key words: small signal stability power system security assessment DSA Tools SSAT |
