基于T-S模糊逻辑的混合储能孤岛直流微电网功率分配控制
TM76; 在含混合储能的直流微电网中,传统阻容下垂控制无法解决由线路电阻和负荷功率波动导致的系统功率分配失衡问题.为此,提出一种基于Takagi-Sugeno(T-S)模糊逻辑的自适应阻容下垂控制方法以实现混合储能的分频分配.根据蓄电池和超级电容的物理特性,建立单个蓄电池支路输出电压、蓄电池组间输出功率差额和阻性下垂系数之间的T-S模糊逻辑关系,以及单个超级电容支路输出功率及其变化率、超级电容组间功率差额和容性下垂系数之间的T-S模糊逻辑关系,并由此构建基于T-S模糊逻辑的阻容下垂控制器.推导含混合储能的直流微电网中各部分的平均阻抗模型,并采用阻抗比分析法对微电网的小信号稳定性进行研究.MA...
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| Published in | 电力自动化设备 Vol. 44; no. 6; pp. 135 - 144 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
浙江工业大学 信息工程学院,浙江 杭州 310023%合肥工业大学 新能源利用与节能安徽省重点实验室,安徽 合肥 230009%国网安徽省电力有限公司电力科学研究院,安徽 合肥 230601
01.06.2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1006-6047 |
| DOI | 10.16081/j.epae.202312002 |
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| Abstract | TM76; 在含混合储能的直流微电网中,传统阻容下垂控制无法解决由线路电阻和负荷功率波动导致的系统功率分配失衡问题.为此,提出一种基于Takagi-Sugeno(T-S)模糊逻辑的自适应阻容下垂控制方法以实现混合储能的分频分配.根据蓄电池和超级电容的物理特性,建立单个蓄电池支路输出电压、蓄电池组间输出功率差额和阻性下垂系数之间的T-S模糊逻辑关系,以及单个超级电容支路输出功率及其变化率、超级电容组间功率差额和容性下垂系数之间的T-S模糊逻辑关系,并由此构建基于T-S模糊逻辑的阻容下垂控制器.推导含混合储能的直流微电网中各部分的平均阻抗模型,并采用阻抗比分析法对微电网的小信号稳定性进行研究.MATLAB/Simulink仿真结果表明,基于T-S模糊逻辑的阻容下垂控制可保证在线路电阻和负荷功率波动情况下系统功率的合理分配. |
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| AbstractList | TM76; 在含混合储能的直流微电网中,传统阻容下垂控制无法解决由线路电阻和负荷功率波动导致的系统功率分配失衡问题.为此,提出一种基于Takagi-Sugeno(T-S)模糊逻辑的自适应阻容下垂控制方法以实现混合储能的分频分配.根据蓄电池和超级电容的物理特性,建立单个蓄电池支路输出电压、蓄电池组间输出功率差额和阻性下垂系数之间的T-S模糊逻辑关系,以及单个超级电容支路输出功率及其变化率、超级电容组间功率差额和容性下垂系数之间的T-S模糊逻辑关系,并由此构建基于T-S模糊逻辑的阻容下垂控制器.推导含混合储能的直流微电网中各部分的平均阻抗模型,并采用阻抗比分析法对微电网的小信号稳定性进行研究.MATLAB/Simulink仿真结果表明,基于T-S模糊逻辑的阻容下垂控制可保证在线路电阻和负荷功率波动情况下系统功率的合理分配. |
| Abstract_FL | In the direct current(DC)microgrid with hybrid energy storage,the traditional resistance-capacitance droop control can not solve the power distribution imbalance problem caused by the line resistance and load power fluctuation.Therefore,an adaptive resistance-capacitance droop control method based on Takagi-Sugeno(T-S)fuzzy logic is proposed to realize the frequency division of hybrid energy storage.According to the physical characteristics of batteries and super capacitors,the T-S fuzzy logic relationship among the output voltage of a single battery branch,the output power difference between the battery groups and the resistive drop coefficient,and the T-S fuzzy logic relationship among the output power of a single superca-pacitor branch and its change rate,the output power difference between the supercapacitor groups and the capacitive drop coefficient are established,based on which,a resistance-capacitance droop controller based on T-S fuzzy logic is constructed.The average impedance model of each part of DC microgrid with hybrid energy storage is derived,and the small signal stability of microgrid is studied by using impedance ratio analysis method.The MATLAB/Simulink simulative results show that the resistance-capacitance drop control based on T-S fuzzy logic can ensure the rational power distribution under the conditions of line resistance and load power fluctuation. |
| Author | 娄伟 杨晓东 顾吉鹏 张有兵 汪斌杰 张伟杰 |
| AuthorAffiliation | 浙江工业大学 信息工程学院,浙江 杭州 310023%合肥工业大学 新能源利用与节能安徽省重点实验室,安徽 合肥 230009%国网安徽省电力有限公司电力科学研究院,安徽 合肥 230601 |
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| Author_FL | ZHANG Weijie YANG Xiaodong WANG Binjie LOU Wei GU Jipeng ZHANG Youbing |
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| Keywords | T-S模糊逻辑 稳定性分析 混合储能 功率分配 stability analysis T-S fuzzy logic power distribution hybrid energy storage DC microgrid 直流微电网 |
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| Title | 基于T-S模糊逻辑的混合储能孤岛直流微电网功率分配控制 |
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