Green Energy based off grid fast charging system for electric vehicles

This proposed work is an attempt to design and develop a Green Energy Based Off-Grid Fast Charging System Design For Electric Vehicles. Using this system, vehicle can be quickly charged up through green energy source. In this project electricity will be generated from the movement of vehicles throug

Project Title

Green Energy based off grid fast charging system for electric vehicles

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

This proposed work is an attempt to design and develop a Green Energy Based Off-Grid Fast Charging System Design For Electric Vehicles. Using this system, vehicle can be quickly charged up through green energy source. In this project electricity will be generated from the movement of vehicles through the system installed on the road which is much better in all aspects because it is a pollution free power generation. The electricity that is being produced will be stored in batteries. The battery plays a major role in the whole system this electricity stored in batteries will head towards the fast charging unit installed beside the road which is at some distance from the power generating system by which people can charge their vehicles in lesser price and in less than 25 minutes in an easy way.

The proposed model offering a lower operating system cost which is different from the uncoordinated system. While on the other side, for the development of electrical vehicle the more available part of decentralized parking IOT, has a long charging part, which is required to install the fast charging vehicles batteries are charged on 15 minutes. The main defect is high power that can be inflict on the grid.

As this project is mainly focusing on fast charging system of electric vehicles through green energy source. There would be a mechanical structure to electrical energy conversion for charge controller, battery management system and electric vehicle charge controller, which would be cost effective and time efficient pollution free charging system for electric vehicles. From where people can charge their vehicles in lesser price and in less time in an easy way which will be more efficient charging system as compare to present available charging units used in the world. So basically this charging system will get electricity from the power generation unit installed on the road which is powered up through movement of vehicles through it. Therefore, this model provides an easy implementation with multiple advantages.

Project Objectives

• Structural formation of mechanical part
• Booth battery charging control
• Vehicles charging control

Project Implementation Method

Our project can be divided into three parts and each of these parts has its own importance and significance that we want to create. The three parts are as follows

1. Structural formation of mechanical part
2. Booth battery charging control
3. Vehicles charging control

Structural formation of mechanical part

We have used rack and pinion method as the peddle is pressed when a car is passing over the speed breaker. The dome is compressed by pressing the pedal attached to the dome. Due to compression the pinion under the dome starts moving on the rack. Here the reciprocating motion is converted to rotary motion. Therefore the potential energy is converted into mechanical energy. The rack is then connected to a permanent magnet DC generator that converts mechanical energy into electrical energy. The amount of electrical energy produced depends on the traffic passing through the road.

As due to lack of traffic passing over the road, then the system will be automatically shifted to solar and the battery will be charged from solar supply. Whereas when a car passes, it will also use that energy and store it in the battery. This change in system makes our system a HYBRID system.

Booth battery charging control and Vehicles charging control system

The speed breaker and solar system is connected with the booth charging control system. This is a simple boost converter circuit that can be used in conjunction with the above to get voltage / current optimized for charging of connected batteries.

The diode used acts as gate since there are two input sources (speed breaker and the other is solar) so that the booth system cannot be affected by each other. The input power goes into the capacitor of 1500 ?F where charges are stored. Since much voltage cannot be generated on single push so first of all capacitor is charged up. Then the rest of the power is sent to the resister, of values 5.6K? and 56K?, and a capacitor of 100nF (these all work as a divider circuit) (Input). Due to these we rotate voltages in Arduino. MOSFET is used and a resistor of 4.7K? is connected to close its gate. To open the gate we have used resistor of 100 ohm. In the circuit, the load resistance is used to acquire the desirable power needed to operate the application. This load resistance is basically the equivalent resistance of all the circuit elements excluding the input source resistance. Then we have put a resistor of 5.6 K? and 56 K? with a capacitor of 100nF (Output). Moreover, a 12 volts relay is used to turn off the charging once the battery is charged.

Also, 7805 regulator is used which convert 12 volts to 5 volts. According to its datasheet a capacitor is connected to reduce its harmonics. A 470?F capacitor is used for filtering low frequency harmonics whereas to filter high frequency harmonic 104pF capacitor is used. Then, this voltage generated is sent in arduino and to LCD. The proposed system has an LCD showing all necessary details relating to our project.

Benefits of the Project

• Pollution free power generation
• Simple construction, mature technology, and easy maintenance
• No manual work necessary during generation
• Energy available all year round
• No fuel transportation problem
• No manual labor at charging station
• Cost effective and time efficient

Technical Details of Final Deliverable

Final Deliverable

• Structural formation of mechanical part
• Booth battery charging control
• Vehicles charging control
• SOC
• SOE

We have used rack and pinion method as the peddle is pressed when a car is passing over the speed breaker. The dome is compressed by pressing the pedal attached to the dome. Due to compression the pinion under the dome starts moving on the rack, which is connected with DC generator that converts mechanical energy into electrical energy. As due to lack of traffic passing over the road, then the system will be automatically shifted to solar and the battery will be charged from solar supply.

The speed breaker and solar system is connected with the booth charging control system. This is a simple boost converter circuit that can be used in conjunction with the above to get voltage / current optimized for charging of connected batteries. This booth charging control system boosts up the voltage coming from the mechanical system and solar panel. And store this power in battery bank. The proposed system has an LCD showing all necessary details relating to our project.

The booth charging system is connected with the vehicle charging control system. This vehicle charging control system is a simple fast charging circuit that can be used in conjunction with the above to get voltage / current optimized for charging of connected to the electric vehicle. This system acts as an booster in the system. The proposed system has an LCD showing all necessary details as battery level, remaing charging time, battery status and other related information.

Final Deliverable of the Project

Hardware System

Core Industry

Energy

Other Industries

Core Technology

Others

Other Technologies

Sustainable Development Goals

Industry, Innovation and Infrastructure

Required Resources

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