The embedded is now a day very much popular and most the product are developed with Microcontroller based embedded technology. Automatic power factor correction device reads power factor from line voltage and line current by determining the delay in the arrival of the current signal with respect to voltage signal from the function generator with high accuracy by using an internal timer. This time values are then calibrated as phase angle and corresponding power factor. Then the values are displayed in the 2X16 LCD modules. Then the motherboard calculates the compensation requirement and accordingly switches on different capacitor banks.

This is developed by using microcontroller. Automatic power factor correction techniques can be applied to the industries, power systems and also households to make them stable and due to that the system becomes stable and efficiency of the system as well as the apparatus increases. The use of microcontroller reduces the costs. 

Hardwa re Requirements

1. AVR atmega8 Microcontroller
2. Op-amps
3. LCD 16x2
4. Shunt Capacitors
5. Relays
6. R elay driver IC
7. Choke inductor
8. Crystal
9. Sw itches
10. Slide Switch
11. Resistors
12. Ca pacitors
13. Diodes
14. LED s
15. Transformer
16. Volta ge Regulator
17. Lamp

Software Requirements

1. AVR STUDIO compiler
2. Languages: Embedded C or Assembly

• Very effective and sensitive
• Low cost due used of microcontroller
• Reduce cost power consumption
• It increases the life of all other electrical appliances
• Also helps in maintain smooth power supply for other users
• Reduce pollution by reducing power consumptions

CO NCLUSION

t can be concluded that power factor correction techniques can be applied to the industries, power systems and also households to make them stable and due to that the system becomes stable and efficiency of the system as well as the apparatus increases. The use of microcontroller reduces the costs. Due to use of microcontroller multiple parameters can be controlled and the use of extra hard wares such as timer, RAM, ROM and input output ports reduces. Care should be taken for overcorrection otherwise the voltage and current becomes more due to which the power system or machine becomes unstable and the life of capacitor banks reduces.