Fully distributed dynamic economical dispatching method for power system based on alternating direction multiplier method
YANG Qing-run
LI Cheng
DING Tao
LI Geng-feng
BIE Zhao-hong
Abstract：In this paper, a fully distributed cross-regional power system dynamic economic dispatching method is pro-posed based on the alternating direction multiplier method (ADMM). The economic dispatching model is to minimize the operation cost of the whole system, while satisfying all kinds of system operational constraints. In order to solve the model with distributed algorithm, the alternating direction multiplier method is applied in this paper to decouple the links between the regions, which decomposes the large-scale optimization problem of the whole system into sub-optimization problems in each region, and the optimal solution of the whole system can be obtained by solving the sub-problems of each region iter-atively. Furthermore, the coordinator for updating the multipliers is canceled in the proposed algorithm, which realizes the fully distributed dispatch strategy. Meanwhile, in order to take into account the close relationship between the time periods in the power system, the economic dispatching model in this paper adopts the multi-period optimization method. Finally, this paper analyzes the example of 3-region interconnected system based on IEEE standard test systems, and verifies the effectiveness of the proposed strategy.
Keywords：power systemdynamic economic dispatchdistributed algorithmsADMM
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 709-716 )