Development Of Solar Pv Battery Charger With Buck Convertr

2021 6th International Conference for Convergence in Technology (I2CT), 2021

With the evolution of Electric Vehicles (EVs) in the modern world, the need for development of charging infrastructure for EVs has become paramount. In this paper, the implementation of a universal solar charger using a DC-DC converter has been discussed. The universal solar charger is needed for charging the EVs using solar panels and reduces the energy demand from the power grid. A buck-boost converter has been implemented using the MSP430G2553 microcontroller which charges the battery using Maximum Power Point Tracking (MPPT) technique. MPPT is implemented to improve the efficiency of the solar converter and enables the converter to extract maximum power from the solar panels for charging the battery. Suitable charging modes like Constant Voltage (CV) and Constant Current (CC) modes are required to prevent overcharging of the battery. The designed converter would prove to be an efficient solution for the charging of EVs and help the expansion of EVs in the world.

International Journal of Sciences: Basic and Applied Research, 2021

An automatic battery charging system has been designed using the Buck-Boost Converter (BBC) method based on a 20W solar cell with AC power output that can be monitored and controlled using a Smartphone. The main objective of this research is to create a stable charging system for the battery using energy sources generated from the sun, and to maintain the voltage on the battery so as not to overcharging or undercharging. The results of this study indicate that the automatic charging system on the battery has been created successfully, with the working principle of automatic cut off on the battery when the voltage reaches 14.2 V and cut off the power output on the load when the battery voltage is below 12 V. The BBC circuit is able to stabilize the input voltage from the panel to 16 V. Then it is regulated by the LM 317 regulator to 14.2 V. The LM 317 circuit which is connected to the battery through a relay is able to limit the battery voltage so that it does not exceed 14.2 V. This system is controlled by the Arduino Uno microcontroller. The data in this study is displayed on an LCD and sent to the user via the internet by IoT. Charging and output from the battery to the inverter can be controlled and monitored using the Blynk application on the Smartphone. The output of this system is a 220 V AC voltage source which is inverted by a 12 V DC-220 V AC inverter.

E3S Web of Conferences

This paper presents the details of design and implementation of DC-DC Buck converter as solar charger. This converter is designed for charging a battery with a capacity of 100 Ah (Ampere Hours) which has a charging voltage of 27.4 volts. The constant voltage method is selected on battery charging with the specified set point. To ensure the charging voltage is always on the set point, the duty cycle control of buck converter is set using Fuzzy Logic Control (FLC). The design implementation has been tested on PV (photovoltaic) with 540WP capacity. Based on the test results, this method is quite well implemented on the problem charger

implemented by using large wind turbine. Circuit simplicity and high reliability are the major advantages of the proposed buck type power converter.

NOVATEUR PUBLICATION, 2020

Design of Two switch buck boost converter which will operate on PV system. The proposed converter is used between PV system and load. The converter can operate in both buck as well as boost mode. Changing its mode is possible by controlling gate signals of respective semiconductor switch. As we get the voltage as per requirement at the output of converter we overcome problem of variation in voltage from system. We can overcome the problem of the voltage variation of the electrical output from PV system. Eventually there have been much advancement in solar technology but the technological advancements are still needed for various renewable energy systems for different loading conditions. By using this TSBB convertor, we can get voltage as per requirement which is helping for distribution the electricity during any environmental condition. MATLAB simulated model with PV system followed by converter is presented. Design of converter is for variable input from PV system, according to input obtained output is varied between range of 12 V to 40 V. Position of two semiconductor switches is arranged in such a way that their source is directly connected to the ground leads to give broader selection range for gate driver IC. As in each mode we use only one semiconductor for switching purpose overall performance is improved.

2013

With the increasing Energy demand Conservation and effective Utilisation of Energy are very essential. Solar Charge Controllers helps in increasing the efficiency of the solar power transferred to the Battery. It consists of mainly Dc-Dc Converters. These Converters are mostly Dc Choppers which converts fixed Dc voltage to a variable Dc source. These Regulators are used in case of Solar Charge Controllers to increase or decrease the PV panel voltage to as that required by Battery. The DC voltage from the PV panel varies with the light intensity which depends on time of day and temperature. Similarly on the Battery side the voltage varies depending on the load connections. Thus for optimal charging of battery it is important that the voltage of the PV panel and the current matches the battery charging state at any instant. There are various types of Dc-Dc Converter of which Buck Boost Converter is taken into consideration. This paper shows all the Design calculations and simulation r...

The solar energy conversion system is an alternative for conventional power generating system. It has no running cost due to freely available and non polluting solar radiations. The voltage which is available from solar array is variable and to obtain a stable voltage from solar panels, DC-DC converters are required for constant power production. There are mainly three converters namely Buck, Boost and Buck-Boost converters which can be used for either increasing or decreasing the voltage. This paper presents mobile charging circuit with a PV source. The circuit structure of the proposed system adopts buck converter combined PWM MPPT technique. In this research, buck converter is used as a charger for charging mobile battery. The input voltage can typically change from (12V) initially, down to (5V), and provide a regulated voltage within the range of the 4.5V required for the charging of mobile batteries.

International Journal of Power Electronics and Drive Systems (IJPEDS)

The aim of this paper is to present a bidirectional DC-DC buck-boost converter design that is specifically intended for use with storage batteries in a PV system. The primary purpose of the batteries is to mitigate the unpredictable and intermittent nature of renewable energy sources. To achieve this, a DC-DC converter is used in buck mode during daylight hours to charge the batteries with power derived from the PV system. If the photovoltaic energy source is unavailable, the batteries can discharge to power the DC load through the converter in boost mode. Therefore, the bi-directional DC/DC converter, which has a high-power capacity, manages the power storage system. To this end, the paper describes the design and implementation of both the power circuit board and drive circuit board of the buck-boost converter, taking into account the rated current, voltage, and power. Finally, the effectiveness and efficiency of the designed converter are verified through experimental tests carri...

MATTER: International Journal of Science and Technology, 2019

This paper deals with the means of transferring energy from the input to the output. The buck boost converter is considered as a maximum power point tracker or power equilibrium device used between the photovoltaic solar system and the battery by supplying the desired power for the stand-alone system requirements. The system energy is assigned by SLP190S-24 High Efficiency Monocrystalline PV module based Perturb and Observe (P&O) MPPT algorithm with a selected lead acid battery bank of 24 Volts. In order to achieve this energy transfer with minor energy losses, Buck-Boost converter with the switching frequency of 25Khz is designed for charging the lead acid battery applied in standalone system. The MATLAB SIMULINK is used to validate the accuracy and effectiveness of the designed Buck-Boost converter simulation results. The result clings to the value of 99.72% for the combined Tracking and conversion efficiencies.

International Journal of Power Electronics and Drive System (IJPEDS), 2019

In this paper a buck-boost dc-dc converter for pv application is proposed, which is mainly composed of a buck-boost converter, PV panel, load and a battery. Existing dc-dc converter can convert the power from the PV panel, but unfortunately the PV panel can only provide power when there is a high intensity of light. In order to provide power supply to the load without any interruption, buck-boost DC-DC converter is introduced. The power intermittency issue of PV panel can be overcome with the aid of a secondary supply which is in this case, the batter. The integration system between the primary and the secondary supply is controlled by a simple proposed control scheme. Battery act as a power in the low voltage side while PV panel is taking over in the high voltage side. Buck-boost converter is operated either is buck or boost mode according to the performance of the PV panel. This paper is presented the simple control scheme to decide the mode suitable for the buck and boost mode. Various conditions are simulated to verify the working operation of the buck-boost converter and to representing solar panel in real life. Simulation and experimental are carried out to verify the system.

The solar energy conversion system is an alternative for conventional power generating system. It has no running cost due to freely available and non polluting solar radiations. The voltage which is available from solar array is variable and to obtain a stable voltage from solar panels, DC - DC converters are required for constant power production. There are mainly three converters namely Buck, Boost and Buck - Boost converters which can be used for either increasing or decreasing the voltage. This paper presents mobile charging circuit with a PV source. The circuit structure of the proposed system adopts buck converter combined PWM MPPT technique. In this research, buck converter is used as a charger for charging mobile battery. The input voltage can typically change from (12V) initially, down to (5V), and provide a regulated voltage within the range of the 4.5V required for the charging of mobile batteries.

In a world of increasing energy demand, it is imperative to come up with innovative solutions to reduce and conserve energy use. There is a significant interest in creating an environmentally friendly system that will save money on electricity and maximize the cost return on investment for solar panels. The photovoltaic industry continues to strive to create efficient and inexpensive systems that can be competitive with other energy sources. The irradiation and temperature are not stable for a PV panel, therefore the electricity generations of the PV panel is not stable. So the maximum power point tracking (MPPT) techniques are used to give the highest power to the loads or batteries. The MPPT process with Perturb and Observe method is performed with a power electronic circuit and it overcomes the problem of voltage mismatch between the PV panels and the batteries/loads. In this study, an Arduino Nano (microcontroller) is employed to develop battery charge control system for PV panels. The proposed system is composed of an Arduino Nano, sensors, synchronous buck converter, a Wi-Fi module (ESP8266), USB charging circuit, PV panel and battery. The program of all circuitry is embedded within the microcontroller.

2013

Maximum Power Point Tracking (MPPT) is used in photovoltaic systems to maximize the photovoltaic array output power, irrespective of the temperature, irradiation conditions and electrical characteristics of the load. A new MPPT system is developed, consisting of DC to DC converter, which is controlled by a microcontroller based unit. There are two charging stages for the proposed PV charger. At the beginning of the charging process, a continuous MPPT-charging scheme is adopted. When the State of Charge (SOC) of battery reaches a given condition, a pulse-current-charging scheme with an adaptive rest period is applied to obtain an average charging current with an exponential profile. During the charging period, the MPPT function is retained to achieve high charging efficiency. Overcharging of the battery can be avoided using the pulse-charging scheme with adaptive rest period. The main difference between the method used in the MPPT system and other techniques used in the past is that ...

2017

The main goal of this project is to use the solar or AC power to charge all kind of regulated and unregulated battery like electric vehicle’s battery. Besides that, it will charge Lithium-ion (Li-ion) batteries of different voltage level. A standard pulse width modulation (PWM) which is controlled by duty cycle is used to build the solar or AC fed battery charger. A microcontroller unit and Buck/Boost converters are also used to build the charger. This charger changes the output voltages from variable input voltages with fixed amplitude in PWM. It gives regulated voltages for charging sensitive batteries. An unregulated output voltage can be obtained for electric vehicle’s battery. The battery charger is tested and the obtained result allowed to conclude the conditions of permanent control on the battery charger.

2012

This paper presents Design of a Microcontroller based Constant Voltage Battery Charger. The circuit is implemented using soft switching buck converter. Solar panels of 75Wp and 37WP are used in parallel for the experimentation and a lead acid battery of 75Ah is used for charging. Microcontroller Atmega16 is used for programming using Win AVR ISP software. It is observed that during 10AM to 2PM, on 1may2012 when there is enough solar radiation at Nagpur, charging current of the battery is almost 7 to 8A.Time taken for charging the battery is 8 to 10 hours depending upon the intensity of solar radiation. The merits of the proposed charger are, highly efficient, simple to design mostly due to not having a transformer, puts minimal stress on the switch, and requires a relatively small output filter for low output ripple.