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AN- Najah National University graduation project Presented by : Saba Ahmad Elsadder Dina M azen khateeb Dalia Isam Shar`ab Supervised by : D r.Mazen Rasekh. Energy management using power line communication. Objectives. Design overview. Part one Energy management.

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AN- Najah National University graduation project Presented by : Saba Ahmad Elsadder

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AN-Najah National University

graduation project

Presented by :

Saba Ahmad Elsadder

Dina Mazenkhateeb

Dalia IsamShar`ab

Supervised by : Dr.MazenRasekh

Energy management using power line communication


Objectives


Design overview


Part one

Energy management


Power reading circuit

Isense

Vsense

220

SSR

Load

MCU

Current sensor

Voltage sensor


reliable sensing

  • Voltage sensing:


Input signal

Output signal


Current sensor

  • The first choice was hall effect sensor

  • Hall Effect sensors are designed to measure relatively large currents.


Current sensor (cont`d )

  • The other choice was to use a thermal series resistor to sense the current going through the load .


  • The voltage drop across R series is proportional to the load current


Power line communication

Part two


Benefits

  • PLN takes advantage of the unused capacity of the power cable to transmit data over the existing home power cabling.

  • A low cost solution.

  • No additional rewiring.

  • Capable of distributing data as fast as 10 + Mbps.


Challenges

  • Noisy environment.

  • Security issues

  • Data attenuation

  • Shared media

  • Regulatory issues in some international

  • markets


Applications


Design and verification


Power line modem


Power line modem


Modem and crystal oscillator section

  • Half-duplex frequency shift keying (FSK)

    Transceiver.

  • 8 Programmable transmission

    frequencies

  • Programmable baud rate

    up to 4800BPS

Carrier frequency : 132.5 KHz.

Baud rate : 2400 Bps .


Data sent to Power Line Modem using asynchronous serial communication

Host modem

Target modem

M

MCU

MCU

Power lines


Line coupling interface section


High power section


Basic transmission and reception

  • FSK modulation


Received data

Transmitted data


Video


part three web interface


Web server

Database

PHP

Visual basic


Visual basic

Microcontroller

Database


Database


Future work

  • Accessing the control register of the modem and using all the functions built in st7540 (header recognition ,addressing ) .

  • Build a network of modems and control loads from multiple places .

  • Home automation


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