Modeling and control of DC/DC boost converter using K-factor control for MPPT of solar PV system

2015 International Conference on Energy Economics and Environment (ICEEE) Pub Date : 2015-03-27 DOI:10.1109/ENERGYECONOMICS.2015.7235087

Adithya Vangari, D. Haribabu, J. Sakamuri

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引用次数: 14

Abstract

This paper is focused on the design of a controller for the DC/DC boost converter using K factor control, which is based on modified PI control method, for maximum power point tracking (MPPT) of solar PV system. A mathematical model for boost converter based on small signal averaging approach is presented. Design of the passive elements of the boost converter as per the system specifications is also illustrated. The performance of the proposed K factor control method is verified with the simulations for MPPT on solar PV system at different atmospheric conditions. A new circuit based model for solar PV array, which includes the effect of solar insolation and temperature on PV array output, for the application in power system transient simulations, is also presented. The performance of the PV array model is verified with simulations at different atmospheric conditions. A 160W PV module from BP solar is modelled and its characteristics are validated with the corresponding results from its datasheet. The simulations are performed using PSCAD/EMTDC.

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基于k因子控制的太阳能光伏系统MPPT DC/DC升压变换器建模与控制

针对太阳能光伏发电系统的最大功率点跟踪问题，研究了基于改进PI控制方法的K因子控制DC/DC升压变换器控制器的设计。提出了一种基于小信号平均法的升压变换器数学模型。并根据系统规范对升压变换器的无源元件进行了设计。通过不同大气条件下太阳能光伏系统MPPT仿真，验证了K因子控制方法的有效性。提出了一种新的基于电路的太阳能光伏阵列模型，该模型考虑了太阳日照和温度对光伏阵列输出的影响，可用于电力系统暂态仿真。通过不同大气条件下的仿真，验证了该模型的性能。对BP太阳能公司的160W光伏组件进行了建模，并根据其数据表的相应结果验证了其特性。采用PSCAD/EMTDC进行仿真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 International Conference on Energy Economics and Environment (ICEEE)

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