基于ISAO的光伏和温差混合发电系统的MPPT方法  

MAXIMUM POWER POINT TRACKING METHOD FOR PHOTOVOLTAIC AND THERMOELECTRIC HYBRID POWER GENERATION SYSTEM BASED ON ISAO

作　　者：皮琳琳 田立国[1] Pi Linlin;Tian Liguo(School of Automation and Electrical Engineering,Tianjin University of Technology and Education,Tianjin 300222,China;School of Electronic Information and Automation,Tianjin Light Industry Vocational Technical College,Tianjin 300350,China)

机构地区：[1]天津职业技术师范大学自动化与电气工程学院,天津300222 [2]天津轻工职业技术学院电子信息与自动化学院,天津300350

出　　处：《太阳能学报》2025年第4期248-255,共8页Acta Energiae Solaris Sinica

基　　金：天津市研究生科研创新项目(2022BKY208)。

摘　　要：光伏温差混合发电(PV-TEG)系统在局部阴影情形下功率-电压(P-U)特性曲线呈现多峰值,传统最大功率点追踪(MPPT)方法易陷入局部最优值,导致系统发电功率降低,智能算法虽能一一追踪到全局最大功率点,但追踪时间过长导致能量损失。针对上述问题,提出一种基于改进雪消融优化器(ISAO)的PV-TEG最大功率点追踪(MPPT)方法,首先设计基于PVTEG特性的初始位置策略,使得初始位置获得更好的适应值;其次在原始SAO的位置更新策略基础上引入基于种群边界范围的动态参数调整机制,并设计改进的开发搜索方式,实现全局与局部搜索能力动态平衡。最后,通过仿真与实验分析,与粒子群算法(PSO)比较,证明了所提方法跟踪能力更佳。The photovoltaic thermoelectric generation system exhibits multiple peaks in the power voltage characteristic curve under partial shadow conditions,and traditional methods are prone to fall into local values,resulting in a decrease in the system’s power generation.Although the intelligent algorithms can track the global maximum value,the tracking time is too long,resulting in energy loss.A maximum power point tracking(MPPT)method for photovoltaic thermoelectric generation system(PV-TEG)based on improved snow ablation optimizer(ISAO)was proposed to address the above issues.Firstly,an initial position strategy based on the characteristics of PV-TEG was designed to achieve better adaptation values for the initial position;Secondly,based on the original position update strategy of SAO,a dynamic parameter adjustment mechanism based on population boundary range is introduced,and an improved exploit search method is designed to achieve dynamic balance between global and local search capabilities.Finally,through simulation and experimental analysis,it is demonstrated that the proposed method has better tracking ability compared to particle swarm optimization(PSO).

关 键 词：光伏温差混合发电 最大功率点追踪 局部阴影 改进雪消融优化器 

分 类 号：TM615[电气工程—电力系统及自动化]