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Adaptive coordination of sequential droop control for PV inverters to mitigate voltage rise in PV-Rich LV distribution networks
Electric Power Systems Research ( IF 3.9 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.epsr.2020.106931
Tam T. Mai , Abu Niyam M.M. Haque , Pedro P. Vergara , Phuong H. Nguyen , Guus Pemen

Abstract This paper introduces an adaptive sequential droop control strategy for PV inverters to mitigate voltage rise problems in PV-rich LV distribution networks. To facilitate the effective coordination of sequential ( Q − V and P − V ) droop control of PV inverters, multiple control areas with the strong coupling nature of PV systems are identified based on the e -decomposition technique. The droop control parameters are tuned and adapted, based on a consensus among PV inverters within each control area. This proposed control strategy inherits the autonomous feature of the droop control for coping with voltage rise issues while being able to avoid curtailing a significant amount of PV production. To evaluate the effectiveness of the proposed control strategy, simulations using MATLAB/Simulink are performed on a real European LV distribution network, considering a PV penetration level of about 150%. The obtained results highlight that the proposed control strategy successfully mitigates voltage rise problems while significantly reducing the amount of curtailed PV generation by approximately 35.6% and 76.2% when compared with the static sequential droop control and the static Q − V droop control and adaptive P − V droop control, respectively. Simultaneously, the effective contribution among all the PV systems towards voltage rise mitigation is obtained.

中文翻译:

光伏逆变器顺序下垂控制的自适应协调,以缓解富含光伏的低压配电网络中的电压上升

摘要 本文介绍了一种用于光伏逆变器的自适应顺序下垂控制策略,以缓解富含光伏的低压配电网络中的电压上升问题。为了促进光伏逆变器顺序(Q-V和P-V)下垂控制的有效协调,基于e分解技术确定了具有光伏系统强耦合特性的多个控制区域。根据每个控制区域内 PV 逆变器之间的共识,调整和调整下垂控制参数。这种提议的控制策略继承了下垂控制的自主特性,用于处理电压上升问题,同时能够避免大量减少光伏生产。为了评估提议的控制策略的有效性,考虑到光伏渗透率约为 150%,我们在真实的欧洲低压配电网络上使用 MATLAB/Simulink 进行了模拟。获得的结果突出表明,与静态顺序下垂控制和静态 Q - V 下垂控制和自适应 P - 相比,所提出的控制策略成功地缓解了电压上升问题,同时显着减少了约 35.6% 和 76.2% 的光伏发电量。 V 下垂控制,分别。同时,获得了所有光伏系统对电压上升减缓的有效贡献。与静态顺序下垂控制和静态 Q - V 下垂控制和自适应 P - V 下垂控制相比,分别为 6% 和 76.2%。同时,获得了所有光伏系统对电压上升减缓的有效贡献。与静态顺序下垂控制和静态 Q - V 下垂控制和自适应 P - V 下垂控制相比,分别为 6% 和 76.2%。同时,获得了所有光伏系统对电压上升减缓的有效贡献。
更新日期:2021-03-01
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