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适应电压支撑下的光伏发电机组最大功率点控制技术

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常规的光伏发电机组最大功率点控制技术,在机械功率的调整上,缺少对适应电压支撑的考虑,导致最大功率点控制效果不好.基于此,提出适应电压支撑下的光伏发电机组最大功率点控制技术.使用功率信号反馈法,检测光伏发电机组的功率,将光伏发电机组的固有功率,作为主要参数.根据发电机组运行状态点的变化,对光伏发电机组功率进行跟踪,以光伏发电机组功率跟踪结果为基础,在适应电压支撑下,通过双输入单输出的结构,调节机械功率,导入调节后的机械功率,将其作为最大功率点控制的基础数据.按照隶属函数,对控制器参数进行实时调整,从而完成对光伏发电机组最大功率点控制.结果表明,在使用本文设计的方法进行控制后,光伏发电机组的最大功率振幅有效降低,控制效果较好,具有较好应用价值.
Maximum Power Point Control Technology for Photovoltaic Power Generation Units Under Voltage Support
The conventional maximum power point control technology for photovoltaic power generation units lacks consideration for adaptive voltage support in adjusting mechanical power,resulting in poor maximum power point control effectiveness.Based on this,a maximum power point control technology for photovoltaic power generation units under voltage support was proposed.Using the power signal feedback method to detect the power of photovoltaic power generation units,the inherent power of the photovoltaic power generation unit was taken as the main parameter,and the power of the photovoltaic power generation unit was tracked based on the changes in the operating state points of the power generation unit.Based on the power tracking results of the photovoltaic power generation unit,under the adaptive voltage support,the mechanical power was ad-justed through a dual input single output structure,and the adjusted mechanical power was imported,Use it as the basic data for maximum power point control,and adjust the controller parameters in real-time accord-ing to the membership function to complete the maximum power point control of photovoltaic power generation units.The results show that after using the method designed in this article for control,the maximum power amplitude of the photovoltaic generator unit is effectively reduced,and the control effect is good,which has good application value.

adapt to voltage supportphotovoltaic generator setsmaximum power point controlmember-ship functionpower amplitudepower amplitude

金世和、谢晨、曲浩、范金鹏

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中建八局第三建设有限公司,南京 210000

适应电压支撑 光伏发电机组 最大功率点控制 隶属函数 功率振幅 功率振幅

2024

微电机
西安微电机研究所

微电机

CSTPCD
影响因子:0.431
ISSN:1001-6848
年,卷(期):2024.57(1)
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