Design and Realization of Solar Energy Maximum Power Point Automatic Tracking System

Aiming at the low generating efficiency of the current solar energy generating system, solar energy maximum power point tracking control system based on STC89C52 is designed and made. The photoelectric detection and tracking is adopted as the control mode in the system. By using stepping motor as driving mechanism, comprehensive trace of the sun is realized by controlling the movement of tracking mechanism in the horizontal and pitching directions. Based on this, real-time detection of wind velocity and change of wind direction is realized by wind velocity and direction transducer which is equipped on the tracking mechanism, which makes the system automatically avoid the typhoon above level 8 to weaken the damage to panel by the storm. The experiment results of model machine indicate that the system has reliable performance which can satisfy the need of auto-solar track, it can also make the panel orient towards east again after darkness to realize daily circular run and it is of relatively high practical value.

2017 International Conference on Communication, Control, Computing and Electronics Engineering (ICCCCEE) ◽

Maximizing solar energy input for Cubesat using sun tracking system and a maximum power point tracking

10.1109/iccccee.2017.7866695 ◽

2017 ◽

Cited By ~ 2

Author(s):

Hammam Abdelwahab ◽

Musatafa Nawari ◽

Hanadi Abdalla

Keyword(s):

Solar Energy ◽

Energy Input ◽

Tracking System ◽

Maximum Power ◽

Maximum Power Point ◽

Point Tracking ◽

Power Point Tracking ◽

Power Point ◽

Solar Energy Input

Maximum Power Point Tracking (MPPT) for a Solar Photovoltaic System: A Review

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.787.227 ◽

2015 ◽

Vol 787 ◽

pp. 227-232 ◽

Cited By ~ 2

Author(s):

L.A. Arun Shravan ◽

D. Ebenezer

Keyword(s):

Solar Energy ◽

Maximum Power ◽

Nonlinear Behaviour ◽

Pv System ◽

Maximum Power Point ◽

Pv Systems ◽

Point Tracking ◽

Power Point Tracking ◽

In recent years there has been a growing attention towards use of solar energy. Advantages of photovoltaic (PV) systems employed for harnessing solar energy are reduction of greenhouse gas emission, low maintenance costs, fewer limitations with regard to site of installation and absence of mechanical noise arising from moving parts. However, PV systems suffer from relatively low conversion efficiency. Therefore, maximum power point tracking (MPPT) for the solar array is essential in a PV system. The nonlinear behaviour of PV systems as well as variations of the maximum power point with solar irradiance level and temperature complicates the tracking of the maximum power point. This paper reviews various MPPT methods based on three categories: offline, online and hybrid methods. Design of a PV system in a encoding environment has also been reviewed here. Furthermore, different MPPT methods are discussed in terms of the dynamic response of the PV system to variations in temperature and irradiance, attainable efficiency, and implementation considerations.

Implementation of Algorithm on MPPT

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.36186 ◽

2021 ◽

Vol 9 (VI) ◽

pp. 5473-5478

Author(s):

Bharat Khandelwal

Keyword(s):

Tracking System ◽

Maximum Power ◽

Maximum Efficiency ◽

Maximum Power Point ◽

Good Efficiency ◽

Point Tracking ◽

Power Point Tracking ◽

Incremental Conductance ◽

Solar energy is a potential energy source in India. A photovoltaic is a efficient way to cure the energy in a huge amount and keep to gather that kind of energy for future, and the PV must have good efficiency. The maximum power point tracking (MPPT) is a process that tracks one maximum power point from array input, in which the ratio varies between the voltage and current delivered to get the most power it can. Several algorithms have been developed for extracting maximum power. To increase its efficiency many MPPT techniques are used. Incremental conductance is one of the important techniques in this system and because of its higher steady-state accuracy and environmental adaptability it is a widely implemented tracked control strategy. This research was aimed to explore the performance of a maximum power point tracking system that implements the Incremental Conductance (IC) method. The IC algorithm was designed to control the duty cycle of the Buck-Boost converter and to ensure the MPPT work at its maximum efficiency. From the simulation, the IC method shows better performance and also has a lower oscillation.

2015 International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC) ◽

Development of low cost, shade tolerant Maximum Power Point Tracking system: Optimizing return on investment

10.1109/iccpeic.2015.7259435 ◽

2015 ◽

Cited By ~ 1

Author(s):

Ali Shazan Gulrez ◽

Charu Dixit ◽

Aqib Siddiqui ◽

Abu Tariq

Keyword(s):

Return On Investment ◽

Tracking System ◽

Low Cost ◽

Maximum Power ◽

Maximum Power Point ◽

Point Tracking ◽

Power Point Tracking ◽

ASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment ◽

A Highly Efficient and Adaptable Solar-Energy Harvesting Circuit for Batteryless IoT Devices

10.1115/isps-mipe2018-8570 ◽

2018 ◽

Author(s):

Ching-Cheng Yang ◽

Paul C.-P. Chao ◽

Rajeev Kumar Pandey

Keyword(s):

Energy Harvesting ◽

Solar Energy ◽

Maximum Power ◽

Transfer Efficiency ◽

Maximum Power Point ◽

Point Tracking ◽

Power Point Tracking ◽

Solar Energy Harvesting ◽

In this paper a new on-chip 2nd generation solar energy harvesting DC-DC converter has been proposed for a battery-less Internet of Things (IoTs) Devices. The propose circuit is design to maximize the transfer efficiency and stability as well as enough high power supply to the back-end loads. Altogether the proposed circuit consists of a cross-coupled charge pump, a maximum power point tracking (MPPT) circuit, a timing control circuit and regulator. The range of input voltage is from 0.5V to 3V. Required boosted output voltage is in the range of 1V to 3.3V. The maximum transfer efficiency is more than 60% and the maximum throughout power is 200μW. A gated clock frequency modulation circuit has been designed and employed in the maximum power point tracking (MPPT) unit to lock the input resistance of the charge pump. In addition, to provide a stable voltage to the load a low dropout (LDO) regulator circuit is used. The experimental results show that the maximum power conversion efficiency (PCE) is 78% at 52μW input power condition.