A novel method for parameter identification of photovoltaic array

Author

Bing Wang ; Yuxian Wang ; Jianliang Zhou ; Yanping Qian

Author_Institution

Coll. of Energy & Electr. Eng., Hohai Univ., Nanjing, China

fYear

2014

fDate

28-30 July 2014

Firstpage

6920

Lastpage

6925

Abstract

Based on the I-V equation of photovoltaic (PV) cell and the output characteristics of maximum power point tracking (MPPT), this paper proposes a novel identification method to identify four key parameters of PV array: photo current I_ph, negative saturation current I₀ , diode ideality factor n and the series resistance of cells R_s, by using the measured input and output data of PV array. According to the gotten I-V equation, the model can predict the output power of PV plant accurately. Finally, the feasibility and accuracy of the proposed method are verified by data simulations and practical examples.

Keywords

maximum power point trackers; parameter estimation; photovoltaic power systems; solar cell arrays; I-V equation; MPPT; PV array; PV cell; cell series resistance; diode ideality factor; maximum power point tracking; negative saturation current; parameter identification method; photo current; photovoltaic array; photovoltaic cell; Arrays; Batteries; Data models; Equations; Mathematical model; Power generation; Resistance; Parameter identification; maximum power point tracking (MPPT); photovoltaic array; power prediction;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2014 33rd Chinese

Conference_Location

Nanjing

Type

conf

DOI

10.1109/ChiCC.2014.6896140

Filename

6896140