| 引用本文: | 刘继春,刘俊勇,郑华.基于线性规划灵敏度分析的发电机组市场力实时监控方法[J].电力自动化设备,2006,(10):31-34 |
| .Real time market power monitoring method based on linear programming OPF algorithm[J].Electric Power Automation Equipment,2006,(10):31-34 |
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| 摘要: |
| 衡量发电机组市场力的现有方法多不适用于实际系统的市场力实时定量计算,具有很大的局限性。基于线性规划LP(LinearProgramming)方法求解最优潮流OPF(OptimalPowerFlow),利用带上界变量的单纯形法推出反映机组投标变化对其收入影响的灵敏度矩阵,可以用来实时判定发电机组是否拥有市场力,并衡量其大小。相应矩阵元素为正值,采取抬高投标价格策略时收入增加会多,正值越大机组市场力越强;相应矩阵元素为负值,采取降低投标容量策略时其收入增加也多,负值绝对值越大机组市场力越强。该方法可作为系统操作员实时监控市场势力的依据,有较强的实用性。 |
| 关键词: 发电机组,市场力,电力市场,电力系统 |
| DOI： |
| 分类号:TM73 F123.9 |
| 基金项目:国家重点基础研究发展计划(973计划)(2004GB217905)，二滩公司电力营销系统规划设计资助项目~~ |
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| Real time market power monitoring method based on linear programming OPF algorithm |
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LIU Ji-chun LIU Jun-yong ZHENG Hua
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| Abstract: |
| Existing methods for weighing up market power of generators are not suitable for real time quantifying market power of real system,which have great limitation.The LP(Linear Program-ming) is used to solve OPF(Optimal Power Flow) and the upper variables simplex method is used to build the bidding perturbation-profit sensitivity matrix,which is used to real time identify the market power of generators and quantify it.When the corresponding element is positive,increase of bidding price will result in more profit;when the corresponding element is negative,decrease of bidding capacity will result in more profit.The bigger the sensitivity(absolute value) is,the stronger the market power is.The proposed method can be used by ISO(Independent System Operator) to real time monitor the market power. |
| Key words: generator unit,market power,electricity market,power system |
