基于MATLAB的光伏模块输出特性及MPPT的建模与仿真  

Seasonal Variations of Diversity of Shrimps in Daiquyang

作　　者：虞宝存[1] 张洪亮[1] 朱增军[1] 王伟定[1] 

机构地区：[1]浙江海洋学院海洋与渔业研究所,浙江省海洋水产研究所,农业部重点渔场渔业资源科学观测实验站,浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316100

出　　处：《浙江海洋学院学报（自然科学版）》2012年第1期18-22,共5页Journal of Zhejiang Ocean University(Natural Science Edition)

基　　金：海洋公益性行业科研专项经费项目（200905019-4;201005013-2）;国家科技支撑计划项目（2007BAD43802）;浙江省渔业资源增殖放流项目（浙海渔计[2011]56号）

摘　　要：基于光伏模块的等效电路模型,结合simulink中的S函数,建立了光伏电池仿真模型。利用该模型,可以模拟实际光伏模块产品在不同太阳辐射强度、环境温度下的I-V和P-V特性。分析了常见的最大功率跟踪（MPPT）方法爬坡法,并建立了仿真模型。Based on the data of bottom trawl surveys in Daiquyang during spring （May）, summer （August）, autumn （November） 2010, and winter （February） 2011, the species diversity of shrimps was analyzed. Sweeparea method and analysis of variance were used here. The results indicated that： A total of 13 species of shrimps were caught by bottom trawl, which belonged to 10 genera, of 8 families. Both the biomass and the abundance density of shrimps reached the maximum in autumn, but decreased to the minimum in spring, and the difference in the biomass and number abundance density was significant （P〈0.05）. The relationship btween the biomass and average bottom sea water salinity can be denoted by binary curve （P〈0.01）. Palaemon gravieri was the dominant species for all the year. The Margalef richness index （D）, Shannon-Wiener diversity index （H＇） and Pielou evenness iddex（J＇） were highest in summer and lowest in winter. In addition, the Margalef rich ness index （D） and Shannon-Wiener diversity index （H＇） in summer and autumn were higher than those in winter and spring in Daiquyang, however, which was contrary in the offshore waters, the opposite phenomenon be- tween Daiquyang and offshore waters was mainly due to its response to the seasonal variations of bottom sea water temperature.

关 键 词：光伏模块 S函数 MPPT 

分 类 号：S932.51[农业科学—渔业资源]