摘要
光储直柔系统中主动调节直流母线电压实现柔性负荷的无通信控制优势显著,但其功率调节机制尚缺乏系统性建模与优化。为此提出基于直流母线电压的柔性负荷功率调节机制,建立电压-功率函数关系,设计限定采样时间内基于趋势判断的电压信号滤波方法。通过光伏未来屋直流社区实证平台验证,柔性直流多联机负荷可以实现电压的长短时变化采样及调控,滤波算法的设计可以在保证动态响应的前提下滤除光储运行带来的电压波动和短时的电压阶跃。该研究可为光储直柔系统提供可工程化的基于直流母线电压的柔性负荷功率调节解决方案,为电压-功率调节机制的标准制定提供一定的数据支持。
The advantage of actively regulating the DC bus voltage in the photovoltaic energy storage direct flexible(PEDF)system to achieve communication-free control of flexible loads is significant,but its power regulation mechanism still lacks systematic modeling and optimization.Therefore,this paper proposes a flexible load power regulation mechanism based on DC bus voltage.It establishes the voltage-power function relationship and designs a voltage signal filtering method based on trend judgment within the limited sampling time.Through the verification of the photovoltaic future house DC community empirical platform,the flexible DC multi-unit load can achieve the perception and regulation of short-term and long-term voltage changes.The design of the filtering algorithm can filter out the voltage fluctuations caused by the operation of photovoltaic energy storage and short-term voltage steps while ensuring the dynamic response.This research provides an engineerable flexible load power regulation solution based on DC bus voltage for the PEDF system,as well as a certain data support for the standardization of the voltage-power regulation mechanism.
作者
袁金荣
赵志刚
惠红勋
赵俊杰
YUAN Jinrong;ZHAO Zhigang;HUI Hongxun;ZHAO Junjie(National Energy Internet Innovation Center(Guangdong)Co.,Ltd.,Zhuhai,Guandong 519000,China;Gree Electric Appliances Incorporation of Zhuhai,Zhuhai,Guandong 519000,China;University of Macao,Macao 999078,China)
出处
《广东电力》
北大核心
2025年第9期15-22,共8页
Guangdong Electric Power
基金
国家重点研发计划项目(2022YFC3802503)
关键词
光储直柔系统
直流母线电压
柔性负荷
动态耦合
无通信控制
photovoltaic energy storage direct flexible system
DC bus voltage
flexible load
dynamic coupling
communication-free control
