| 考虑负荷概率分布的随机最优潮流方法 |
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| 引用本文： | 胡泽春,王锡凡.考虑负荷概率分布的随机最优潮流方法[J].电力系统自动化,2007,31(16):14-18. |
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| 作者姓名： | 胡泽春 王锡凡 |
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| 作者单位： | 1. 上海交通大学电子信息与电气工程学院,上海市,200240
2. 西安交通大学电气工程学院,陕西省西安市,710049 |
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| 基金项目： | 国家重点基础研究发展计划(“973计划”) |
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| 摘 要： | 针对考虑负荷概率分布的随机最优潮流问题，建立了相应的机会约束规划模型。基于经典最优潮流问题的内点法和随机潮流方法，设计了求解该模型的一种启发式方法。该方法以确定性负荷最优潮流计算结果为基础，通过求取受机会约束的变量的概率分布判断概率约束是否满足。若不满足，则根据变量分布和等效的机会约束，形成新的上下限约束，继续计算负荷为期望值时的最优潮流，直至所有概率约束满足。对5节点和IEEE 118节点系统的测试表明该算法的有效性。
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| 关 键 词： | 最优潮流 随机潮流 负荷概率分布 机会约束规划 内点法 |
| 收稿时间： | 2006/11/21 0:00:00 |
| 修稿时间： | 7/28/2007 5:05:15 PM |
Stochastic Optimal Power Flow Approach Considering Load Probabilistic Distributions |
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| HU Zechun,WANG Xifan.Stochastic Optimal Power Flow Approach Considering Load Probabilistic Distributions[J].Automation of Electric Power Systems,2007,31(16):14-18. |
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| Authors: | HU Zechun WANG Xifan |
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| Abstract: | A chance constrained programming model is built to the stochastic optimal power flow problem(S-OPF)considering load probabilistic distributions.Based on the interior point method for deterministic optimal power flow(D-OPF)and probabilistic load flow method,a heuristic solution approach is proposed to solve the model.This approach makes use of the results of D-OPF and checks if the chance constraints are satisfied through obtaining distributions of the chance constrained variables.If a chance constraint is violated,new upper and lower bounds to the corresponding variable are formed based on the distribution and equivalent chance constraint of the variable.Then a new D-OPF with loads equal to their expect values is solved.The iteration terminates till all the chance constraints are satisfied.Tests on a 5-bus system and the IEEE 118-bus system show the effectiveness of the proposed method. |
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| Keywords: | optimal power flow probabilistic power flow load probabilistic distribution chance constrained programming interior point method |
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