The project aim to fulfil the objective of sustainable, secure and economical power supply with consumers involvement. The main goals are reduction in greenhouse gas emissions, enhancement of grid reliability and energy self-sufficiency in distributed energy domains. A system deve
IoT based Smart Microgrid Energy Management System
The project aim to fulfil the objective of sustainable, secure and economical power supply with consumers involvement. The main goals are reduction in greenhouse gas emissions, enhancement of grid reliability and energy self-sufficiency in distributed energy domains.
A system developed for saving, monitoring the utilization, controlling and conservation of electrical energy. It is achieved with the help of sensing, monitoring and analyzing the statics of load and applying algorithm with the help of microcontrollers and Internet of Things (IoT) technology that make our system capable of selecting an energy source from either the power grid or PV system, according to the amount of power demand. Moreover the smart microgrid efficiently utilize the harvested solar energy by mutual sharing subject to the availability. Furthermore it includes the schedule and control mechanism, incorporated for time automatic control of different appliances to reduce energy usage during peak hours with or without consumer intervention to reduce the electricity invoice.
Design and development of Microgrid
Integration of IoT with the system
Prototype development
A prototype modeled as a microgrid with two houses having different load demands each having installed a 50W solar PV panel, a charge controller, battery storage 7.5Ah, Invertor and a controller unit. They utilize solar energy harvested in day time to supply loads and store the excessive energy for use in night and/or during peak hours. They also share their stored energy with others on demand subject to availability. The each consumer have different kind of load i.e. first connected to conventional power supply grid only (representing Air Conditioners, Water pump and vaccum cleaner etc) second and third can switch between solar and grid, they can also run on shared solar power of the smart microgrid.
The smart grid will consist of a master controller and two slaves both slaves will be sharing thier data with the master controller with the help of IoT technology which will decide and record the sharing of the solar harvested energy in DC form.
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Arduino board | Equipment | 3 | 1450 | 4350 |
| Wireless Transmitter/Receiver Pin HC11 | Equipment | 3 | 950 | 2850 |
| Node MCU | Equipment | 3 | 850 | 2550 |
| Double pole double through Relays | Equipment | 6 | 300 | 1800 |
| single pole single through Relay | Equipment | 12 | 200 | 2400 |
| Printed Circuit Board Sheet | Equipment | 1 | 600 | 600 |
| FET Z44 | Equipment | 16 | 75 | 1200 |
| ON/OFF Relay | Equipment | 14 | 171 | 2394 |
| Transistor BD139 | Equipment | 8 | 40 | 320 |
| Capacitor 150uF | Equipment | 3 | 80 | 240 |
| Potentiometer | Equipment | 4 | 40 | 160 |
| Voltage Regulator LM7812 | Equipment | 2 | 50 | 100 |
| Voltage Regulator LM7805 | Equipment | 2 | 50 | 100 |
| Rectifier 2A | Equipment | 2 | 180 | 360 |
| IC 4047 | Equipment | 3 | 90 | 270 |
| Heat Sink | Equipment | 12 | 20 | 240 |
| Solar Panel 50W | Equipment | 2 | 3800 | 7600 |
| Battery 7.5Ah | Equipment | 2 | 1600 | 3200 |
| Soldering Iron | Equipment | 1 | 400 | 400 |
| Hard Board | Equipment | 1 | 1000 | 1000 |
| LED Lamp/ Bulb | Equipment | 4 | 450 | 1800 |
| Fan/ Motor | Equipment | 2 | 500 | 1000 |
| Lamp Holders | Equipment | 4 | 60 | 240 |
| ON/OFF Switches | Equipment | 30 | 10 | 300 |
| Circuit Breaker | Equipment | 2 | 450 | 900 |
| wires, connectors, clips, saddles, screws | Miscellaneous | 1 | 1000 | 1000 |
| FeCl chemical /PCB printing, Etching etc | Miscellaneous | 1 | 600 | 600 |
| Stationary and printing | Miscellaneous | 1 | 1000 | 1000 |
| Total in (Rs) | 38974 |
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