考虑机组电压下垂特性的大型光伏电站分布式电压优化控制策略

程强; 李海啸; 包诗媛; 杨伟; 刘利娟; 张路

doi:10.19912/j.0254-0096.tynxb.2024-0598

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (8) : 411-422. DOI: 10.19912/j.0254-0096.tynxb.2024-0598

考虑机组电压下垂特性的大型光伏电站分布式电压优化控制策略

程强, 李海啸, 包诗媛, 杨伟, 刘利娟, 张路

作者信息 +

DISTRIBUTED VOLTAGE OPTIMIZATION CONTROL STRATEGY FOR LARGE SCALE PHOTOVOLTAIC POWER STATIONS CONSIDERING UNIT VOLTAGE DROOP CHARACTERISTICS

Cheng Qiang, Li Haixiao, Bao Shiyuan, Yang Wei, Liu Lijuan, Zhang Lu

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文章历史 +

摘要

考虑到传统的集中式控制面临着通信负担较大的问题,提出一种分布式电压优化控制策略。在电压控制优化模型的构建上,考虑机组电压下垂特性的影响,将分段线性化的有功/无功-电压（P/Q-V）下垂曲线转变为一组混合整数线性约束,嵌入电压控制优化模型中。在电压控制优化模型的求解上,对传统交替方向乘子法进行改进,使其具有“并行更新”和“异步通信”能力,以提升分布式优化效率。最后通过算例分析,验证所提控制策略的适用性。

Abstract

Fluctuations in photovoltaic output can easily cause the system voltage to exceed the limit, so that effective voltage optimization control is required. Considering that traditional centralized control faces the problem of heavy communication burden, a distributed voltage optimization control strategy is proposed. In the construction of the voltage control optimization model, the influence of the unit voltage droop characteristics is considered, and the piecewise linearized P/Q-V droop curve is transformed into a set of mixed integer linear constraints to embed in the voltage control optimization model. In solving the voltage control optimization model, the traditional alternating direction multiplier method is improved to have "parallel update" and "asynchronous communication" capabilities to improve the efficiency of distributed optimization. Finally, the applicability of the proposed control strategy is verified by case analysis.

导出引用

程强, 李海啸, 包诗媛, 杨伟, 刘利娟, 张路. 考虑机组电压下垂特性的大型光伏电站分布式电压优化控制策略[J]. 太阳能学报. 2025, 46(8): 411-422 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0598

Cheng Qiang, Li Haixiao, Bao Shiyuan, Yang Wei, Liu Lijuan, Zhang Lu. DISTRIBUTED VOLTAGE OPTIMIZATION CONTROL STRATEGY FOR LARGE SCALE PHOTOVOLTAIC POWER STATIONS CONSIDERING UNIT VOLTAGE DROOP CHARACTERISTICS[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 411-422 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0598

中图分类号： TM615

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