Design of a P-&amp;-O algorithm based MPPTcharge controller for a stand-alone200W PV system

Salman Salman; Xin Ai; Zhouyang Wu

doi:10.1186/s41601-018-0099-8

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Design of a P-&-O algorithm based MPPTcharge controller for a stand-alone200W PV system

Case Study | 更新时间：2026-09-30

- Design of a P-&-O algorithm based MPPTcharge controller for a stand-alone200W PV system
- Protection and Control of Modern Power Systems Vol. 3, Issue 3, Pages: 1-8(2018)
- 作者机构：
  
  State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.1186/s41601-018-0099-8
  CLC：
- Published：01 July 2018
- 稿件说明：
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Salman Salman, Xin Ai, Zhouyang Wu. Design of a P-&-O algorithm based MPPTcharge controller for a stand-alone200W PV system[J]. Protection and Control of Modern Power Systems, 2018, 3(3): 1-8.
DOI：

Salman Salman, Xin Ai, Zhouyang Wu. Design of a P-&-O algorithm based MPPTcharge controller for a stand-alone200W PV system[J]. Protection and Control of Modern Power Systems, 2018, 3(3): 1-8. DOI： 10.1186/s41601-018-0099-8.

摘要

Solar cells convert sun light into electricity

but have the major drawbacks of high initial cost

low photo-conversion efficiency and intermittency. The current-voltage characteristics of the solar cells depend on solar insolation level and temperature

which lead to the variation of the maximum power point (MPP). Herein

to improve photovoltaic (PV) system efficiency

and increase the lifetime of the battery

a microcontroller-based battery charge controller with maximum power point tracker (MPPT) is designed for harvesting the maximum power available from the PV system under given insolation and temperature conditions. Among different MPPT techniques

perturb and observe (P&O) technique gives excellent results and thus is used. This work involves the design of MPPT charge controller using DC/DC buck converter and microcontroller. A prototype MPPT charge controller is tested with a 200 W PV panel and lead acid battery. The results show that the designed MPPT controller improves the efficiency of the PV panel when compared to conventional charge controllers.

Abstract

Solar cells convert sun light into electricity

but have the major drawbacks of high initial cost

low photo-conversion efficiency and intermittency. The current-voltage characteristics of the solar cells depend on solar insolation level and temperature

which lead to the variation of the maximum power point (MPP). Herein

to improve photovoltaic (PV) system efficiency

and increase the lifetime of the battery

perturb and observe (PO) technique gives excellent results and thus is used. This work involves the design of MPPT charge controller using DC/DC buck converter and microcontroller. A prototype MPPT charge controller is tested with a 200 W PV panel and lead acid battery. The results show that the designed MPPT controller improves the efficiency of the PV panel when compared to conventional charge controllers.

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Design of a P-&-O algorithm based MPPTcharge controller for a stand-alone200W PV system

DOI：10.1186/s41601-018-0099-8

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