Solar Charge Controllers using MPPT and PWM: A Review (original) (raw)
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Simulation and Analysis of Various Techniques Used for MPPT Solar Charge Controller
In this paper various Maximum Power Point Tracking (MPPT) techniques are proposed. Maximum power point tracking is used for extracting the maximum power from the Solar photovoltaic module (SPV). Maximum power point tracking (MPPT) algorithms are used for achieving maximum power point. Microcontroller is used for control of the MPPT algorithm. Perturb & Observe method is used to operate the PV system at maximum power point. The Perturb & Observe method tracks Maximum power point (MPP) steadily and calculate the operating point at which battery is capable to produce maximum power. The project aims to design Buck converter & development of MPPT algorithm using Microcontroller programming.
Design of Solar Charge Controller by the use ofMPPT Tracking system
International Journal of Advanced Research in Electrical, Electronics and Instrumentation Energy, 2012
When a solar PV system is deployed for practical applications, the IV Charateristics keeps on changing with insolation and temperature. In order to receive maximum power the load must adjust itself and accordingly to track maximum power point. The voltage at which PV module can produce maximum power is called ‘maximum power point’ (or peak power voltage). Maximum power varies with solar radiation, ambient temperature and solar cell temperature. Typical PV module produces power with maximum power voltage of around 17 V when measured at a cell temperature of 25°C, it can drop to around 15 V on a very hot day and it can also rise to 18 V on a very cold day. Solar charge controllers are having wide range applications like in street lighting, water pumping system and many other industrial purposes. This paper mainly gives idea about designing of solar charge controller using maximum power point tracking system.
Designing, Implementation and Analysis of solar charge controller using modified MPPT technique
IJRAR
In present era need of the renewable energy sources and related technologies are in huge demand. For the same purpose India is planning for the generation of 20 Gigabyte of solar energy till 2020 [4]. Solar energy is vital and unstoppable source of energy that can be used for the generation of electric energy. The main hindrance of use and implementation of solar PV systems are their low efficiency and higher initial cost. For this sake of instance there is always requirement of the charge controller for the conversion of solar to electric energy. Till date numbers of charge controllers are developed, but there is lot of limitations according to the working efficiency, standard and cost. There are three main types of the charge controller on/off, PWM and MPPT. This paper presents the designing of solar charge controller using modified MPPT technique. This technique aims to design the charge controller made up of toroidal inductor for greater efficiency, Psoc 4 BLE controller for overall control and glass epoxy fiber PCB for maximum durability. Proposed system will deliver up to 100 W of charge that can be used for charging of batteries within range. Experimented highest efficiency is 105.36% recorded accordingly power delivered and power received. Additional features involved higher current protection, short circuit protection and reverse polarity protection. This controller operates in four operating states on state, off state, float state and bulk state depending upon input applied and output required.
Simulation and Hardware Implementation of Grid Connected Solar Charge Controller with MPPT
A renewable energy source plays an important role in electricity generation. Various renewable energy sources like wind, solar, geothermal, ocean thermal, and biomass can be used for generation of electricity and for meeting our daily energy needs. Energy from the sun is the best option for electricity generation as it is available everywhere and is free to harness. On an average the sunshine hour in India is about 6hrs annually also the sun shine shines in India for about 9 months in a year. Electricity from the sun can be generated through the solar photovoltaic modules (SPV). The SPV comes in various power output to meet the load requirement [1]. Maximization of power from a solar photo voltaic module (SPV) is of special interest as the efficiency of the SPV module is very low. A peak power tracker and DC-DC Boost Converter is used for Extracting the maximum power from the SPV module. And simulation in PSIM software and hardware result is compare and solar panel maximum efficiencies is increase nearby 85% using dither routine algorithm method use.
This paper describes how to implement MPPT using the most popular switching power supply topology. There are many published works on this topic, but only a tiny portion of them show how to actually implement the algorithms in hardware, as well as state common problems and pitfalls. In our work to keep the design simple we have used Arduino Nano. It has features like: LCD display, Led Indication and it is equipped with various protections to protect the circuitry from abnormal condition. This design is suitable for a 50W solar panel to charge a commonly used 12V lead acid battery. As the maximum power point (MPP) of photovoltaic (PV) power generation systems changes with changing atmospheric conditions (e.g. solar radiation and temperature), an important consideration in the design of efficient PV systems is to track the MPP correctly. We have implemented the most common MPPT algorithm named Perturb and Observe (PO) to control the output of a synchronous buck-converter.
Photovoltaic Charge Controller Using Mppt Algorithm
The main aim is to design a simple but effective charge controller with maximum power point tracking to provide higher efficiency and to protect the battery from getting damaged. Implementing a MPPT algorithm in charge controller is necessary because the current-voltage characteristics of solar PV arrays are non-linear where at a particular point the power output is max. So to extract the maximum power from the solar PV system, implementation of MPPT algorithm is must.