基于有限步一致性算法的交直流混联微电网分布式动态经济调度

以可控单元的日运行成本最低为优化目标,构建了交直流混合微电网的动态经济调度模型,提出了一种基于有限步一致性的完全分布式算法,设置各分布式发电单元的成本微增率为一致性变量,各单元通过与邻居单元交互信息实现全局优化调度,并且算法可在有限步内收敛,极大地缩短了收敛时间。最后,通过仿真算例验证了所提模型和算法的有效性。

Dynamic Economic Dispatch of AC/DC Microgrid Based on the Finite-Step Consensus Algorithm

In this paper, a dynamic economic dispatch model of AC/DC microgrid is developed with the objective of minimizing the daily operation cost of controllable units. Furthermore, a distributed algorithm based on the finite-step consensus algorithm is proposed, in which the incremental cost of each distributed generation unit is set as a consensus variable, and all units can obtain the optimal values by exchanging information only with its neighboring. In addition, the algorithm can converge to the optimal solutions in finite steps, which greatly reduces the convergence time. The effectiveness of the proposed model as well as the algorithm is verified by the simulation examples.