This project deals with term Power Quality and its reference to terms Voltage and Current Quality, Continuity of supply. For long time the main concern of consumers of electricity was the continuity of the supply, i.e. the reliability. Nowadays consumers want not only reliability, but quality too. Power quality is determined by ability of customer equipment to perform properly. The reason to explain the current interest in power quality is growing economic impacts on the network operators (i.e. the utilities) and their customers. The devices and equipment being applied in industrial and commercial facilities are more sensitive to power quality disturbances than equipment applied in the past. The whole system is as sensitive as the most sensitive equipment. Malfunction of equipment or mis operation of an important process can affect production continuity resulting in material damages. We have designed a project to monitor all these things all the time because human effort is not sufficient and also not possible 24 x 7. PIC Microcontroller is our controller; current sensor and voltage sensor are used to monitor the power supply. The details will be updated in the thingspeak through IoT module connected to the controller. Any disturbance can be identified easily and necessary measures can be taken immediately to avoid further loss. This project uses regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.          

Objectives:

• To develop a power quality monitoring system for industrial and commercial applications.
• To continuously monitor voltage and current using suitable sensors.
• To detect power supply disturbances and abnormal conditions automatically.
• To use a PIC microcontroller for data processing and system control.
• To transmit the monitored power parameters to ThingSpeak through IoT.
• To provide real-time monitoring and early identification of faults to reduce equipment damage and production losses.

           

Technical specifications:      

Microcontroller                       :           PIC16F873

Power Supply                          :           +5V, 500mA Regulated Power Supply

LCD                                        :           16*2 LCD  16-character, 2-line (16X2)

Crystal                                     :           20MHz

Sensor                                     :           Current sensor and voltage sensor

Communication device           :           ESP8266          

Software’s used:  

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3.  Express SCH for Circuit design.

       

Regulated Power Supply:                

Block Diagram:                            

video: