Distributed optimization and scheduling strategy for source load storage distribution grid based on alliance chain

Jinhua Tian; Yueyuan Zhang; Yanan Gao; Yu Qin; Bihan Fan; Cheng Zhang; Qiqi Zang; Jinhua Tian; Yueyuan Zhang; Yanan Gao; Yu Qin; Bihan Fan; Cheng Zhang; Qiqi Zang

doi:10.3934/energy.2024044

AIMS Energy

2024, Volume 12, Issue 5: 946-967. doi: 10.3934/energy.2024044

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Research article Special Issues

Distributed optimization and scheduling strategy for source load storage distribution grid based on alliance chain

1.
Inner Mongolia Electric Power (Group) Co., Ltd., Ordos Power Supply Branch, Ordos 017000, China
2.
School of Control and Computer Engineering, North China Electric Power University, Baoding 071000, China
3.
Agricultural Bank of China, Hebei Branch, Shijiazhuang 050051, China

Received: 30 March 2024 Revised: 25 July 2024 Accepted: 07 August 2024 Published: 16 August 2024

With the high penetration of renewable energy, the addition of a large number of energy storage units, and flexible loads, the source-load-storage structure of active distribution networks is becoming increasingly complex, making optimization and scheduling more challenging. In response to issues as difficult global information acquisition, less consideration of flexible load and energy storage unit access, individual deception, and insufficient security in the optimization scheduling process of active distribution networks, this paper constructed a distribution network optimization scheduling model that includes sources, loads, and storage. It proposed a distributed optimization scheduling strategy for source-load-storage distribution networks, combined with alliance chains. This strategy is based on the FISCO BCOS consortium chain platform, with blockchain multi-agent nodes forming a consortium chain network. The consistency variables are the incremental cost of distributed power generation and the incremental benefits of flexible loads. Distributed scheduling calculations were carried out using a consensus algorithm that includes leadership nodes. By combining the data storage mechanism and consensus algorithm advantages of the consortium chain, the centrality of leadership nodes is eliminated, achieving optimal power allocation in the distribution network at a minimum economic cost. The simulation results show that the distributed optimization scheduling strategy proposed in this paper can achieve optimal allocation of minimum cost in the distribution network and converge quickly in various scenarios such as non-flexible load fluctuations, leader node switching, node joining or leaving, and changes in power exchange instruction in the distribution network. It demonstrates good robustness and stability.
- distributed optimal scheduling,
- alliance chain,
- FISCO BCOS,
- consistency algorithm,
- distribution network
Citation: Jinhua Tian, Yueyuan Zhang, Yanan Gao, Yu Qin, Bihan Fan, Cheng Zhang, Qiqi Zang. Distributed optimization and scheduling strategy for source load storage distribution grid based on alliance chain[J]. AIMS Energy, 2024, 12(5): 946-967. doi: 10.3934/energy.2024044

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Abstract

With the high penetration of renewable energy, the addition of a large number of energy storage units, and flexible loads, the source-load-storage structure of active distribution networks is becoming increasingly complex, making optimization and scheduling more challenging. In response to issues as difficult global information acquisition, less consideration of flexible load and energy storage unit access, individual deception, and insufficient security in the optimization scheduling process of active distribution networks, this paper constructed a distribution network optimization scheduling model that includes sources, loads, and storage. It proposed a distributed optimization scheduling strategy for source-load-storage distribution networks, combined with alliance chains. This strategy is based on the FISCO BCOS consortium chain platform, with blockchain multi-agent nodes forming a consortium chain network. The consistency variables are the incremental cost of distributed power generation and the incremental benefits of flexible loads. Distributed scheduling calculations were carried out using a consensus algorithm that includes leadership nodes. By combining the data storage mechanism and consensus algorithm advantages of the consortium chain, the centrality of leadership nodes is eliminated, achieving optimal power allocation in the distribution network at a minimum economic cost. The simulation results show that the distributed optimization scheduling strategy proposed in this paper can achieve optimal allocation of minimum cost in the distribution network and converge quickly in various scenarios such as non-flexible load fluctuations, leader node switching, node joining or leaving, and changes in power exchange instruction in the distribution network. It demonstrates good robustness and stability.

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