摘要
为了实现更大范围的资源优化配置 ,网络互联与区域间的功率交换日益频繁 ,并由此产生了跨大区的输电阻塞管理问题。针对这一问题提出了跨大区电力市场双边交易的阻塞管理数学模型和实用计算方法。在优化目标函数中 ,引入了合同的“权重因子” ,以反映经济上的重要性或政策要求等因素 ,从而区别对待各合同 ,并使合同的调整量最小 ;在约束中 ,同时考虑了单条联络线的热稳定或动稳定约束和联络线割集的动稳定约束。导出了组对组 (点集对点集 )合同内发电功率对线路功率的转移分布因子 ,从而将约束转化为发电机功率增量向量的线性函数 ,并通过阻塞优化校正算法得到最终的可行交易集合。改进的IEEE 30节点算例证明了该算法的正确性和有效性。
In order to deal with the emerging inter-regional congestion management problem, an optimization model and a practical approach for checking the feasibility of inter-regional bilateral contracts is presented in this paper. In the objective of this model, the economy and policy factors are considered by introducing weighting factors of contracts with the objective of minimizing regulating amount. The thermal stability limit and dynamic stability limit of the tie line are also considered as the constraints in this model. Defining and formulating the combined distribution shift factor for group to group contracts represent the constraints as the linear combination of generation change vector. The feasible contract set is obtained by using an efficient optimization algorithm. Numerical example on IEEE 30-system demonstrates this model and approach is correct and efficient.
出处
《电力系统自动化》
EI
CSCD
北大核心
2003年第14期18-22,53,共6页
Automation of Electric Power Systems
基金
国家重点基础研究专项经费资助项目 (G19980 2 0 30 5 )
香港政府大学研究基金 (RGC)资助项目~~
关键词
电力市场
跨大区阻塞管理
双边合同
分布因子
electricity market
inter-regional congestion management
bilateral contract
distribution factor
