多种类型硅电池光伏组件性能模拟的复合方法

发布时间：2018-08-18 12:04

【摘要】：提出一种新的多种类型硅电池光伏组件性能模拟的复合方法,该方法根据光伏组件生产厂商提供的标准测试条件下铭牌参数值,首先利用简化的四参数模型得出高精度光伏组件的I-V曲线,进而对该I-V曲线利用分段拟合的方法得出电池电流方程的微分方程在短路及开路状态下的通用求解模型,在此基础上利用五参数模型得到串联电阻Rs、并联电阻Rsh、光生电流Iph、反向饱和电流Io以及二极管理想因子n这5个电性能参数的解析解。该方法解决了五参数模型中所需的电池电流方程的微分方程在短路及开路状态下的值不能直接从组件铭牌参数中获取的问题,将计算结果与实验数据分析比较,结果表明该方法具有较高的计算精度,可为深入分析光伏组件在多种复杂情况下的性能输出提供重要手段。
[Abstract]:A new hybrid method for simulating the performance of photovoltaic modules for various types of silicon cells is proposed. The method is based on the nameplate parameter values under the standard test conditions provided by the photovoltaic module manufacturers. Firstly, the I-V curve of high precision photovoltaic module is obtained by using the simplified four-parameter model, and then the general solution model of the differential equation of the cell current equation under short-circuit and open-circuit conditions is obtained by using the piecewise fitting method for the I-V curve. On the basis of this, the analytical solutions of series resistance Rs, shunt resistance, photogenerated current Iph, reverse saturation current Io and diode ideal factor n are obtained by using the five-parameter model. This method solves the problem that the differential equation of the battery current equation required in the five-parameter model can not be obtained directly from the nameplate parameters of the components under the short-circuit and open-circuit conditions. The calculated results are analyzed and compared with the experimental data. The results show that this method has high calculation accuracy and can provide an important means for in-depth analysis of the performance output of photovoltaic modules in various complex cases.
【作者单位】：河海大学常州校区机电工程学院;光伏科学与技术国家重点实验室;
【基金】：江苏省自然科学基金面上项目(BK20141154);江苏省自然科学基金(BK2011263) 河海大学优秀创新人才支持计划
【分类号】：TM914.4

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