宁夏电力Issue(3)：21-27,7.DOI:10.3969/j.issn.1672-3643.2024.03.004
分布式光伏发电系统输出功率微分控制策略研究
Research on differential control strategies for output power in distributed photovoltaic power generation systems
摘要
Abstract
The inner loop control strategies for photovoltaic(PV)power generation systems include maximum power point tracking(MPPT)and DC bus voltage support strategy.Switching between these two control strategies often leads to DC bus overvoltage,causing system oscillations and,in severe cases,PV shutdown.This paper proposes a novel differen-tial control strategy for output power based on the output characteristics of the photovoltaic array.By this strategy,PV can switch the control object naturally without switching the control strategy.Thus,the DC bus voltage oscillation can be reduced and the system performance can be improved.Additionally,an outer loop controller adopts droop control to ensure an even output power distribution across multiple distributed PV systems.The feasibility of this control strategy is substantiated through a simulation model.关键词
光伏发电系统/下垂系数/微分控制Key words
photovoltaic power generation system/droop coefficient/differential control分类
信息技术与安全科学引用本文复制引用
马敏,顾泽玉,姚志刚,燕正家,马晓云..分布式光伏发电系统输出功率微分控制策略研究[J].宁夏电力,2024,(3):21-27,7.基金项目
国网宁夏电力有限公司科技项目(5229ZW230002) （5229ZW230002）
