| 引用本文: | 韩松,徐政,毛雪雁,孙黎滢,常勇.适用于大电网机电暂态仿真的高压SCCL模型研究[J].电力自动化设备,2009,(3): |
| .High voltage SCCL model for electromechanical transient simulation of large power grid[J].Electric Power Automation Equipment,2009,(3): |
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| 摘要: |
| 借助PSASP电力系统仿真软件的自定义模型建立了一个适用于大电网机电暂态仿真的高压短路电流限制器(SCCL)模型.简要介绍了SCCL的结构和工作原理;描述了模型的构建方法,该模型通过比较线路电流以及线路电流变化率与短路电流阈值的大小,来决定晶闸管保护型的串联补偿装置(TPSC)的投入与退出继而控制电容器(可控部分)的容抗值大小;通过一个4机11节点系统的数值仿真算例证明该模型的有效性.在一个实际华东系统算例中,分析了SCCL不同电抗值参数时的短路电流限制效果以及对系统暂态稳定性的影响,提出应用于线路的SCCL的电抗值选取不但要考虑预期的短路电流限制程度指标,还应计及线路串补度的限制. |
| 关键词: 短路电流限制器 短路电流 高压电网 系统互联 |
| DOI： |
| 分类号:TM743 |
| 基金项目:国家科技支撑计划重大项目? |
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| High voltage SCCL model for electromechanical transient simulation of large power grid |
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HAN Song1 XU Zheng1 MAO Xueyan2 SUN Liying2 CHANG Yong3
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| Abstract: |
| The model of high-voltage SCCL(Short Circuit Current Limiter)for the electromechanical transient simulation of large power grid is established with the user-defined model of PSASP power system simulation software. The structure and working principle of SCCL are introduced briefly and the modeling of SCCL is described. By comparing periodically the line current and its variation rate with the corresponding short circuit current threshold,SCCL model switches on or off the TPSC(Thyristor Protected Series Compe... |
| Key words: FACTS TPSC |
