Uninterruptable Power Supply With Android Application

This project deals with the concept of Uninterruptable supply of power (UPS) with 500W of capacity to drive load despite disturbances at the input side and the fundamental phenomenon which plays its crucial part in this is PWM Pulse Width Modulation technique and this technique is efficient accordin

Project Title

Uninterruptable Power Supply With Android Application

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

This project deals with the concept of Uninterruptable supply of power (UPS) with 500W of capacity to drive load despite disturbances at the input side and the fundamental phenomenon which plays its crucial part in this is PWM Pulse Width Modulation technique and this technique is efficient according to its own characteristics while the main working of this project is provide uninterrupted AC power which is converted from 12V DC source and after that we get 220V AC to use for our purpose to run something of our use according to its need. Some robust components are used in this project such as MOSFETS, PWM Generator and Transformer except this monitoring of important parameters such as input and output voltage, load voltage and battery voltage can be done through Android based mobile phone Application by which user can keep an eye on these parameters. ANDROID Application has just an option of monitoring and has basic and easy to understand user interface.
The device used for controlling of overall circuitry is Arduino Nano which is used as main controller here which takes decisions on the basis of its backend program which is created according to the working of the project. While the device used for the communication between mobile Application and controller is NODE MCU (ESP8266) which sends values wirelessly to mobile App and displays on mobile phone. Simulation is also done to verify the results
practically and it also provides flexibility to vary values and change according to the need. UPS also has an option of solar charger by which it’s easy to charge battery or DC source incase grid power isn’t available and renewable energy is therefore efficient both economically and practically.

Project Objectives

Our objective is to design an Uninterruptable power supply with an Android based mobile application.
Main features of the project are that it will be monitored through smart phone android application which includes:

• Input voltage monitoring.
• Output voltage monitoring.
• Battery voltage monitoring.
• Backup-time monitoring.
• Load % monitoring.
• OLED Graphic Display.
• Smart phone Android Application.
• Load Capacity of 500W.
• Renewable (Solar) Power Option.

It will also have an option for Solar renewable energy by which user can connect Solar system with its power supply.

Project Implementation Method

The SG3525A pulse width modulator control circuit offers improved performance and lower external parts count when implemented for controlling all types of switching power supplies. 

The ACS712 is a fully integrated, hall effect-based linear current sensor with 2.1kVRMS voltage isolation and an integrated low-resistance current conductor. 

The ZMPT101B is a voltage transformer used to measure AC voltage. You can measure AC voltages up to 250 volts by using this module. The output of this sensor is analog.

This module is based on principle of resistive voltage divider design, can make the red terminal connector input voltage to 5 times smaller.

Relay is an electromechanical device that uses an electric current to open or close the contacts of a switch. The single-channel relay module is much more than just a plain relay.

The LCD (Liquid Crystal Display) is a type of display that uses the liquid crystals for its operation. The Liquid Crystal Display has a parallel interface. It means that the microcontroller operates several pins at once to control the LCD display. The process includes putting the data (to be displayed on the LCD screen) into the data registers.

IRF1404 is an N channel MOSFET which is capable of advanced processing technology, fast switching speed, ultra-low on resistance etc. These features make the device extra stable and increase its reliability to use it in variety of different applications. The device is capable to deliver up to 162A current in continuous load driving and up to 650A in pulse mode. Other than that, the transistor max power dissipation is up to 200W.

A center-tapped transformer has two sets of coils on either the primary or secondary side. The transformer in the parts kit has two sets of coils on both the primary and secondary side. The two sets of coils on the primary side, which has three pins, are wired such that the two coils of wire are in series. The two sets of wire coils on the secondary sides are not in series, but are independent of one another.

The Node MCU ESP8266 development board comes with the ESP-12E module containing the ESP8266 chip having Tensilica Xtensa 32-bit LX106 RISC microprocessor. This microprocessor supports RTOS and operates at 80MHz to 160 MHz adjustable clock frequency. Node MCU has 128 KB RAM and 4MB of Flash memory to store data and programs. Its high processing power with in-built Wi-Fi / Bluetooth and Deep Sleep Operating feature.

Android Application will be designed for the monitoring of parameters.

Benefits of the Project

Benefits of this project includes the ability to keep itself stable/providing of smooth supply of power instead of any interruption during operation. Most of power parameters will be easily monitored by user on mobile application which will be android based by which user will keep itself updated anywhere. It will have capacity to drive Load of 500W with reliability and robustness of power. Due to Solar power feature, it will be feasible for user to switch on Solar renewable energy easily.

Android Application will make it easier for user to monitor parametrs remotely to keep an eye on device performance.

Technical Details of Final Deliverable

Final deliverable will be our UPS hardware and Android Application developed on software which will have following details regarding final presentation.

In this project, the pulses needed for switching semiconductor devices are generated using the Arduino nano board and the. The most important task in this project is the implementation of the PWM modulation on the Arduino, before performing experimental measurements are carried out for the square wave and the PWM inverters (PWM)The simulations results obtained are in accordance with measurements. Through this project, the most important conclusion is that Arduino offers a simple and efficient programming environment suitable for PWM converters.

When device will be turned on the controller initializes all IOs, variables and LCD. Then it reads AC input voltage which it receives from sensor and if the voltage is less than 180 it converts to Inverter mode otherwise it will be on Grid mode. After this it reads Load voltage and load current with the help of current sensor and voltage sensor if the load voltage exceeds its set or limit value the controller gives the indication of overload on the display otherwise if the
condition is normal according to algorithm it will just display the parameters on screen such as load voltage, current, grid voltage and load percentage. The decision and controlling is done by controller because when the condition is not according to the preset logic it returns to its original state.

Final Deliverable of the Project

HW/SW integrated system

Core Industry

Energy

Other Industries

Core Technology

Clean Tech

Other Technologies

Sustainable Development Goals

Affordable and Clean Energy

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com