Power Proportional Sharing and SoC Equalization Strategy for Distributed Energy Storage Units Based on Distributed Consensus Algorithm
- Resource Type
- Conference
- Authors
- Hu, Juntai; Zhang, Keyong; Wang, Guanrui; Gen, Xin; Jia, Zihao; Lei, Sa; Jin, Yaoke; Qiu, Jun; Shen, Yatao
- Source
- 2020 13th International Conference on Intelligent Computation Technology and Automation (ICICTA) ICICTA Intelligent Computation Technology and Automation (ICICTA), 2020 13th International Conference on. :712-716 Oct, 2020
- Subject
- Computing and Processing
Photovoltaic systems
Reactive power control
Simulation
Consensus algorithm
Distribution networks
Robustness
State of charge
consensus algorithm
Power sharing
SoC equalization
- Language
The voltage violation in low-voltage distribution network (LVDN) with high penetration of distributed photovoltaic (PV) is becoming more and more serious. One of the effective methods to solve this problem is to configure appropriate distributed energy storage units (ESUs) in the system and control them reasonably. In this paper, A distributed consensus algorithm based on the segmented V-P droop control of the key node is proposed to mitigate the voltage violation problems by using distributed ESUs. This strategy determines the ESUs participation in voltage regulation in terms of their rated power as well as state of charge (SoC) to prevent their excessive saturation or depletion. Except that, the strategy reduces the dependence on central controller and improves the robustness of the system. Finally, the simulation results validate the effectiveness of the proposed strategy in this paper.