MULTI-OBJECTIVE VOLTAGE COORDINATION CONTROL AMONG NEW ENERGY STATIONS BASED ON DIGITAL TWINS

Xu Wenhao; Ji Liang; Hong Qiteng; Han Jiaxuan; Chang Xiao; Zhi Huiqiang

doi:10.19912/j.0254-0096.tynxb.2024-1693

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (2) : 255-265. DOI: 10.19912/j.0254-0096.tynxb.2024-1693

MULTI-OBJECTIVE VOLTAGE COORDINATION CONTROL AMONG NEW ENERGY STATIONS BASED ON DIGITAL TWINS

Xu Wenhao¹, Ji Liang¹, Hong Qiteng², Han Jiaxuan², Chang Xiao³, Zhi Huiqiang³

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Abstract

When asymmetric voltage drops occur in the power grid, inverter type new energy stations （NES） may face a series of risks such as voltage drops and current exceeding limits, which can lead to serious consequences such as station disconnection from the grid. The main drawback of traditional coordination control methods among new energy stations is that the control objective is single and heavily relies on real-time communication. In response to the above issues, this article proposes a multi-objective voltage support coordination control strategy among new energy stations based on digital twins. Firstly, carry out multi-objective coordinated control technology among new energy stations, considering the safety of inverter operation, to achieve multi-objective control such as maximizing support for grid voltage and reducing grid imbalance. Then, a new energy digital twin model considering control characteristics is established, and multi-objective coordinated control technology among new energy stations is implemented based on the digital twin model, effectively reducing the dependence of coordinated control on real-time communication and improving the response speed of coordinated control. Finally, based on the real-time simulation platform RTDS/RSCAD for power systems, a coordinated control testing platform based on digital twins is built, and the effectiveness of the method is verified.

Key words

digital twin / asymmetric fault / new energy stations / voltage support / coordinated control

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Xu Wenhao, Ji Liang, Hong Qiteng, Han Jiaxuan, Chang Xiao, Zhi Huiqiang. MULTI-OBJECTIVE VOLTAGE COORDINATION CONTROL AMONG NEW ENERGY STATIONS BASED ON DIGITAL TWINS[J]. Acta Energiae Solaris Sinica. 2026, 47(2): 255-265 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1693

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