Research on distributed cooperative optimisation control strategy for active distribution network based on combine-then-adapt diffusion algorithm

• Published in: Journal of engineering (Stevenage, England) Vol. 2019; no. 16; pp. 1911 - 1917
• Main Authors: Wu, Lizhen, Jiang, Libo, Hao, Xiaohong, Zheng, Tianwen
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 01-03-2019; Wiley
• Subjects: active distribution network; active power optimisation dispatching; adaptive adjacency matrix; combine-then-adapt diffusion algorithm; distributed agents; distributed control; distributed cooperative optimisation control strategy; distributed cooperative optimisation operation strategy; distributed generators; distributed hierarchical control method; distributed power generation; distributed sparse network; distribution generator; distribution networks; fusion matrix; highly intermittent renewable generations; IEEE14-bus distribution test system; multi-agent systems; networked system; optimisation; power distribution control; power distribution faults; power generation control; The 14th IET International Conference on AC and DC Power Transmission (ACDC 2018); power distribution control; multi-agent systems; active power optimisation dispatching; distributed cooperative optimisation control strategy; distributed agents; distributed control; distribution networks; distribution generator; distributed cooperative optimisation operation strategy; power generation control; adaptive adjacency matrix; power distribution faults; highly intermittent renewable generations; distributed power generation; distributed hierarchical control method; combine-then-adapt diffusion algorithm; networked system; distributed sparse network; optimisation; IEEE14-bus distribution test system; distributed generators; active distribution network; fusion matrix
• ISSN: 2051-3305; 2051-3305
• DOI: 10.1049/joe.2018.8821

Considering the problem of cooperative operation of highly intermittent renewable generations (photovoltaic and wind power) and flexible load in active distribution network, a distributed cooperative optimisation operation strategy based on combine-then-adapt diffusion algorithm is proposed in this study. Distributed agents of distributed generators are connected by the distributed sparse network through distributed hierarchical control method. As an agent node of networked system, it interchanges information with its neighbours. In order to make the distribution generator meet the equal incremental cost principle, the adaptive adjacency matrix and fusion matrix with the weighted factor are introduced to update the state value of nodes to obtain the same convergence value. In this strategy, the coordinated source and load is applied by the active power optimisation dispatching for active distribution network. Stimulate analysis and experimental results show that the proposed combine-then-adapt diffusion algorithm can effectively solve the problem of real-time detection signal, can quickly learn and adapt to environmental changes. Finally, the simulation analysis and experimental results of IEEE14-bus distribution test system is carried out to verify the effectiveness and feasibility of the proposed method.