An improved perturbation and observation maximum power point tracking algorithm for PV arrays

被引:104
作者
Liu, XJ [1 ]
Lopes, LAC [1 ]
机构
[1] Concordia Univ, Montreal, PQ, Canada
来源
PESC 04: 2004 IEEE 35TH ANNUAL POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6, CONFERENCE PROCEEDINGS | 2004年
关键词
D O I
10.1109/PESC.2004.1355425
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper discusses a new implementation of a Perturbation and Observation (P&O) Maximum Power Point Tracking (MPPT) algorithm that can mitigate/reduce the main drawbacks commonly related to the P&O method. This is achieved with peak current control, small perturbation values and sampling of instantaneous values, instead of averaged, to speed up the system response and reduce the oscillations around the Maximum Power Point (MPP). The number of samples per switching cycle, type (synchronized/unsynchronized) and ideal instant for sampling (maximum or minimum current) are investigated in order to obtain fast calculation of the direction of the next perturbation. Experimental results with the proposed control scheme implemented in a DSP are presented.
引用
收藏
页码:2005 / 2010
页数:6
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