Consensus Based Approach for Economic Dispatch Problem in a Smart Grid
Consensus Based Approach for Economic Dispatch Problem in a Smart Grid
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DOI：
10.1109/iecon.2013.6699440
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发表时间：
2013-11
影响因子：
6.6
通讯作者：
Sicong Tan;Shiping Yang;Jian-xin Xu
中科院分区：
文献类型：
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作者：
Sicong Tan;Shiping Yang;Jian-xin Xu
经济调度问题是智能电网中一类重要的优化问题，其目标是使一定发电量下的总成本最小。在这项工作中，提出了一种新的基于共识的分布式求解EDP算法。在问题的描述中假设了二次凸代价函数，强连通的通信拓扑结构足以进行信息交换。与集中式方法不同，所提出的算法使发电商能够集体学习需求和总发电量之间的不匹配。然后，估计的失配被用作反馈机制，以调整每个发电机的当前发电量。通过战术初始设置，最终，所有的发电机都可以自动地将集体意义上的总成本最小化。
Economic dispatch problem (EDP) is an important class of optimization problems in the smart grid, which aims at minimizing the total cost when generating certain amount of power. In this work, a novel consensus based algorithm is proposed to solve EDP in a distributed fashion. The quadratic convex cost functions are assumed in the problem formulation, and the strongly connected communication topology is sufficient for the information exchange. Unlike centralized approaches, the proposed algorithm enables generators to collectively learn the mismatch between demand and total amount of power generation. The estimated mismatch is then used as a feedback mechanism to adjust current power generation by each generator. With a tactical initial setup, eventually, all generators can automatically minimize the total cost in a collective sense.