Optimal control of grid-connected overvoltage of distributed photovoltaic power generation based on cluster division

• Autorzy: Yang Jianfeng , Zhou Tao , Zhu Shikun , Jia Chenyang

Identyfikatory

DOI

10.24425/aee.2024.152110

• Języki publikacji: EN

Abstrakty

EN

School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, China To address the overvoltage problem caused by the reverse flow of current when a high proportion of distributed photovoltaic (PV) is connected to the distribution network, this paper proposes a grid-connected voltage regulation control strategy based on the cluster division of the Distributed Model Predictive Control (DMPC) algorithm. Firstly, the overvoltage responsibility of each node is calculated using the Shapley value method. This is combined with k-means clustering to achieve effective cluster division, enabling dynamic adjustment of the active and reactive power of photovoltaic power generation units to stabilize regional voltage. Secondly, a group grid-connected voltage control strategy is introduced. This strategy controls the active and reactive power outputs by integrating real-time power output and voltage information from PV generating units in the region with the DMPC algorithm, ensuring overall voltage stability of the grid-connected system. Finally, actual overvoltage data from a 10 kV distribution line in the Dingxi power grid, Gansu Province, is used to verify that under the proposed control strategy, PV grid-connected overvoltage nodes are maintained within 1.06 p.u. The control effect is improved by a margin of 0.05 compared to traditional control methods. This demonstrates the effectiveness of the grouped grid-connected voltage regulation control strategy, achieving smoother voltage regulation performance in distributed PV grid-connected systems.

Słowa kluczowe

EN

cluster division; distribution network; distributed photovoltaics; grid control; overvoltage

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2024
• Tom: Vol. 73, nr 4
• Strony: 1047--1067
• Opis fizyczny: Bibliogr. 26 poz., rys., tab., wykr., wz.

Twórcy

autor

Yang Jianfeng

• School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, China

autor

Zhou Tao

• School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, China

autor

Zhu Shikun

• School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, China

autor

Jia Chenyang

• School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, China

Bibliografia

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