| 引用本文: | 赵书强,涂筱莹,王达飞,胡永强.考虑负荷特性的输电网可靠性评估软件开发[J].电力自动化设备,2014,34(7): |
| ZHAO Shuqiang,TU Xiaoying,WANG Dafei,HU Yongqiang.Development of reliability evaluation software of power transmission grid considering load characteristics[J].Electric Power Automation Equipment,2014,34(7): |
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| 摘要: |
| 综合考虑输电网一年中的负荷变化、线路的检修计划、断路器故障以及线路多重故障，通过时序蒙特卡洛模拟法模拟系统实际运行状态。以下次事件推进原则调整模拟时钟，以相似度度量获得最优的负荷简化曲线，采用直流潮流模型计算故障潮流，以判断线路是否过载。如果线路过载，则采用最优负荷削减模型进行发电机出力的调整和负荷的削减。依据所提方法， 利用Visual Basic编制可靠性评估软件。利用所提方法对IEEE RTS 79可靠性测试系统的输电部分进行可靠性评估， 结果表明采用所提方法的可靠性评估结果更符合输电网实际运行情况，且不影响计算速度和收敛性。 |
| 关键词: 输电 可靠性 评估 负荷特性 相似度 时序模拟 模型 |
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| 基金项目:国家自然科学基金资助项目（７１２７１０８２）；国家软科学研究计划（２０１２ＧＸＳ４Ｂ０６４） |
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| Development of reliability evaluation software of power transmission grid considering load characteristics |
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ZHAO Shuqiang, TU Xiaoying, WANG Dafei, HU Yongqiang
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School of Electrical and Electronic Engineering，North China Electric Power University，Baoding 071003，China
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| Abstract: |
| The time-sequence Monte Carlo method is applied to simulate the actual operational conditions of power transmission grid，which considers comprehensively the load variation within a year，the line maintenance schedule，the circuit breaker faults and line multiplex faults. The simulative clock is adjusted according to the principle of next-event-moving-forward and the optimal load curve is simplified by the similarity measure. The DC power flow model is adopted for the faulty power flow calculation to detect the line overload. If line overload occurs，the optimal load shedding model is applied to adjust the power output of generator and shed the relevant loads. The reliability evaluation software is programmed with Visual Basic. The power transmission part of IEEE RTS 79 reliability test system is evaluated by the developed software and results show that，with expected calculation speed and convergency，the evaluated reliability is much closer to the actual operating conditions of power transmission grid. |
| Key words: power transmission reliability evaluation load characteristics similarity time-sequence simulation models |
