In the present technological revolution power is very precious. So we need to find out the causes of power loss and improve the power system. Due to industrialization the use of inductive load increases and hence power system losses its efficiency. So we need to improve the power factor with a suitable method. . Whenever we are thinking about any programmable devices then the embedded technology comes into forefront.
Image : Automatic Power Factor Correction
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
AVR atmega8 Microcontroller
R elay driver IC
Volta ge Regulator
AVR STUDIO compiler
Languages: Embedded C or Assembly
Image : BLOCK DIAGRAM OF MODEL
ADVANTAGES Of Automatic Power Factor Correction
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
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.
Image : ADVANTAGES Automatic Power Factor Correction
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