基于序列运算的随机直流潮流改进算法及实例分析
随着风电并网容量的增加，风电出力的不确定性已成为影响电力系统安全的重要因素，在进行系统潮流计算时，必须考虑风电出力的不确定性影响。以国内学者所提出的基于序列运算理论的随机潮流计算方法为基础，对含有风电场的电力系统的随机潮流计算方法进行改进，全面考虑风电场出力、常规机组停运、负荷需求及线路故障的不确定性，得出系统有功不平衡及各支路潮流的概率分布情况，准确反映电力系统的运行状态。计算结果表明，所提出的改进随机潮流算法和蒙特卡罗法计算结果是一致的，而在计算速度上则具有很大优势。...
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| Published in | 电力系统保护与控制 Vol. 40; no. 22; pp. 8 - 13 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国电力科学研究院,北京 100192
2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-3415 |
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| Abstract | 随着风电并网容量的增加，风电出力的不确定性已成为影响电力系统安全的重要因素，在进行系统潮流计算时，必须考虑风电出力的不确定性影响。以国内学者所提出的基于序列运算理论的随机潮流计算方法为基础，对含有风电场的电力系统的随机潮流计算方法进行改进，全面考虑风电场出力、常规机组停运、负荷需求及线路故障的不确定性，得出系统有功不平衡及各支路潮流的概率分布情况，准确反映电力系统的运行状态。计算结果表明，所提出的改进随机潮流算法和蒙特卡罗法计算结果是一致的，而在计算速度上则具有很大优势。 |
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| AbstractList | TM619; 随着风电并网容量的增加,风电出力的不确定性已成为影响电力系统安全的重要因素,在进行系统潮流计算时,必须考虑风电出力的不确定性影响.以国内学者所提出的基于序列运算理论的随机潮流计算方法为基础,对含有风电场的电力系统的随机潮流计算方法进行改进,全面考虑风电场出力、常规机组停运、负荷需求及线路故障的不确定性,得出系统有功不平衡及各支路潮流的概率分布情况,准确反映电力系统的运行状态.计算结果表明,所提出的改进随机潮流算法和蒙特卡罗法计算结果是一致的,而在计算速度上则具有很大优势. 随着风电并网容量的增加，风电出力的不确定性已成为影响电力系统安全的重要因素，在进行系统潮流计算时，必须考虑风电出力的不确定性影响。以国内学者所提出的基于序列运算理论的随机潮流计算方法为基础，对含有风电场的电力系统的随机潮流计算方法进行改进，全面考虑风电场出力、常规机组停运、负荷需求及线路故障的不确定性，得出系统有功不平衡及各支路潮流的概率分布情况，准确反映电力系统的运行状态。计算结果表明，所提出的改进随机潮流算法和蒙特卡罗法计算结果是一致的，而在计算速度上则具有很大优势。 |
| Author | 刘德伟 郭剑波 黄越辉 王伟胜 |
| AuthorAffiliation | 中国电力科学研究院,北京100192 |
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| DocumentTitleAlternate | Improved algorithm and case study for probabilistic DC power flow calculation based on sequence operation theory |
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| Keywords | 线路故障 风电并网 分布函数 随机潮流 序列运算 |
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| Notes | LIU De-wei, GUO Jian-bo, HUANG Yue-hui, WANG Wei-sheng （China Electric Power Research Institute, Beijing 100192, China） sequence operation; probabilistic load flow; probability distribution function; wind power integration; line fault With the increasing of wind power integration, the uncertainty of wind power has become the main factor affecting the safety of the grid. It is necessary to consider the uncertainty of wind power when calculating the probabilistic load flow. Based on the method of calculating the probabilistic load flow with sequence operation theory suggested by domestic researcher, this paper improves the method considering the uncertainty of wind power, the forced outage of generation and branch, and the uncertainty of demand. The probability distribution function of the unbalanced active power and load flow can be obtained by this method, which can reflect the state of the grid. It is concluded that the proposed method can get the same results as Monte Carlo simulation method, and it is faster |
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| PublicationTitle | 电力系统保护与控制 |
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| SubjectTerms | 分布函数 序列运算 线路故障 随机潮流 风电并网 |
| Title | 基于序列运算的随机直流潮流改进算法及实例分析 |
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