| 计及加权网络拓扑的备用购买双层决策 |
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| 引用本文： | 张国芳,刘俊勇,吕林.计及加权网络拓扑的备用购买双层决策[J].四川电力技术,2011,34(3):48-52,56. |
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| 作者姓名： | 张国芳 刘俊勇 吕林 |
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| 作者单位： | 四川大学电气信息学院,四川成都610065;四川省智能电网重点实验室,四川成都610065 |
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| 摘 要： | 为反映大电网多市场环境下对电网运输的不确定影响,提出了加权网络拓扑分析下的电力交易对备用服务的购买模型。以备用服务为研究对象,基于线路电抗的加权电网拓扑,考虑关键线路的备用可用率,构造了考虑阻塞风险的备用获取模型,并利用双层规划进行全局优化计算得最优备用分配。该模型通过带阻抗权重的将电网简化为有向加权稀疏连通图,从输电通道裕度角度和发电容量归属建立脆弱深度指标,定量反映不同交易注入下通道受扰程度。上层优化以供电公司效用最大化为目标,下层以备用成本最小化为目标,以通道受扰程度为约束。算例结果表明备用通道分析可方便调度人员明确通道冗余度状况,加大了安全性和经济性。
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| 关 键 词： | 备用服务 加权网络拓扑 双层规划 通道裕度 |
Bi-level Reserve-purchase Decision Considering Weighted Network Topology |
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| Affiliation: | Zhang Guofang Liu Junyong Lü Lin |
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| Abstract: | In order to reflect the influence of uncertainty on transmission in the large grid and multi-market environment,the trading model of reserve services in the weighted grid is proposed.Based on a weighted network topology,considering the availability of critical lines,the reserve acquisition model with congestion risk is put forward,and bi-level programming is used to optimize the reserve allocation.The model simplifies the grid with impedance weight to the directed weighted connected graph,and establishes th... |
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| Keywords: | reserve service weighted network topology bi-level programming channel margins |
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