Research on Maximum Power Point Tracking Method for Grid-Connected Photovoltaic Power Generation System

DOI

10.2991/amcce-15.2015.336How to use a DOI?

Keywords

Grid-connected photovoltaic power generation; maximum power point; tracking algorithm; controller

Abstract

Aiming at the solar photovoltaic characteristics and the lower transformation efficiency problem in grid-connected photovoltaic power generation, a maximum power point tracking (MPPT) algorithm is put forward. According to the changes of amplitude and frequency of power-grid voltage, the proposed algorithm can calculate the correction value of maximum power point, which will be stacked with the maximum power obtained by means of perturbation and observation method, and then the MPPT control is realized. Simulation experiment results present that, compared with the traditional MPPT method using perturbation observation, the proposed method can avoid misjudgment, guarantee the shorter time for maximum power point tracking, and reduce the shock around the maximum power point. Moreover, it can effectively suppress the influences of instable factors on the maximum power point, and meet the optimal power point for stable operation of power grid.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ying Zhang
AU  - Junhai Jiang
PY  - 2015/04
DA  - 2015/04
TI  - Research on Maximum Power Point Tracking Method for Grid-Connected Photovoltaic Power Generation System
BT  - Proceedings of the 2015 International Conference on Automation, Mechanical Control and Computational Engineering
PB  - Atlantis Press
SN  - 1951-6851
UR  - https://doi.org/10.2991/amcce-15.2015.336
DO  - 10.2991/amcce-15.2015.336
ID  - Zhang2015/04
ER  -