architecture for smart grid based consumer end solution

Generation

Transmission and Distribution

Consumers

- To design low profile, versatile nodes capable of communication between the system designer and the appliances.

Problem Definition

- To design a generic entity to play administrator over a group of control nodes.

- To make available the desired data at the administrator node, and to maintain a database for the specified duration.

- We call the control nodes as “SLAVES”, and the administrator nodes as “POWER HUB”.

- The POWER HUB listens to the system designer, and implements the required control over the network through SLAVES.

- To design a low profile, versatile nodes to communicate between the system designer and the appliances.

Problem Definition

- To design a generic entity to play administrator over a group of control nodes.

- To make available the desired data at the administrator node, and to maintain a database for the specified duration.

- We call the control nodes as “SLAVES”, and the administrator nodes as “POWER HUB”.

- The POWER HUB listens to the system designer, and implements the required control over the network through SLAVES.

Power Hub

Slaves

Power Lines

Architecture Overview

Power Hub

Slave

User Interface

Network Interface

CardEthernet Interface

Power Line Modem

Display Control Panel

Interface Controller

Database Manager

Intelligent Kernel

AdministratorInterface

Com

man

d In

terfa

ce

Legend: - Power Lines - 10/100 Ethernet Interface

Architecture - Power Hub


Power Hub

Slave


Slave

Metrology Sensors

Real Time Clock

Segment LCDDisplay

Power Line Modem

ADC Switching Control

Control, Logic,

Display & Keypad Control

Keypad, User Interface

SwitchAppliance

UART

RTCFP

GA

Prio

rity

Cont

rol

Architecture - Slave

Metrology Sensors

Real Time Clock

Segment LCDDisplay

Power Line Modem


Control, Logic,



SwitchAppliance

UART

RTCFP

GA

Prio

rity

Cont

rol


Metrology Sensors

Real Time Clock

Segment LCDDisplay

Power Line Modem


Control, Logic,



SwitchAppliance

UART

RTCFP

GA

Prio

rity

Cont

rol


Metrology Sensors

Real Time Clock

Segment LCDDisplay

Power Line Modem


Control, Logic,



SwitchAppliance

UART

RTCFP

GA

Prio

rity

Cont

rol


Communication Schema

ADDSLOT

8MARKER

Hub

Communication SchemaHub feeds the MARKER on network

ADDSLOT

8MARKER

Hub

PREFIX

then, it feeds PREFIX on the network

Hub

These basic elements are sent on the network, even when there is no SLAVE connected

ADDSLOTPREFIX

8MARKER

Hub

Slave 1

SLAV

E 1

When a SLAVE is introduced in the network, it searches for MARKER, and catches the PREFIX that follows.

PREFIX

8

ADD

SLOT

MAR

KER

Hub

Slave 1SLAVE 1

The SLAVE registers itself into the network, by sending its unique address to HUB during this slot.

SLAVE 1

PREFIX

8M

ARKE

R

Hub

Slave 1

The HUB registers the new SLAVE into the network, when it receives an address during this slot.

MARKER

SLAVE 1 TO HUBHUB TO SLAVE 1

SLAVE 1

ADD SLOT

PREFIX

Hub

SLAVE 1

When a SLAVE is successfully registered in the network, the HUB assigns it an address slot – SLAVE 1.

The HUB and SLAVE are now connected, and communication can take place.

SLAVE 1

HubMSG

SLAVE 1

Hub

MSG

SLAVE 1

HubM

SG

MSG

SLAVE 1

Hub

MSG

Applications

- Smart Grid Technologies.

Applications

- Other Applications.

- Smart Grid Technologies.

Applications

- Other Applications.

- Device Management.- Prepaid Power.- Energy Market Transaction.

- Breakdown Management.- Power Factor Correction- Data Acquisition systems

Current Status

- The design of Power Line modem and SLAVE as mentioned in the proposed architecture has been completed with appreciable results.

Current Status

- Pspice simulation models of the Oscillator, BPSK modulator & demodulator, and the notch filter have been displayed in the mentioned order.

Current Status - Oscillator• 1.02 MHz Oscillator to transmit Pilot Carrier on network.

Current Status - BPSK Modulator• The carrier is phase shifted by 180⁰ for level shifts of Data.

Current Status - BPSK DemodulatorDemodulated Data

Original Data• XOR operation based demodulator

Current Status - Notch Filter• Twin – Tee Symmetrical Notch Filter with notch at 50Hz.

THANK YOU

Oscillator I

Oscillator II

Switching Network Modulated Output

Modulator

Schematics – Oscillator I

Schematics – Oscillator II

Schematics – Switching Network

Amplifier Amplifier Amplifier

XOR

Clipper

Amplifier

Amplifier Amplifier AmplifierClipper

Output Data

Input Data – 10 MHz

Carrier Input– 1 MHz

Stage IIStage I

Output Stage

Front End

Demodulator

Schematics – Amplifier

Schematics – Buffer

Schematics – Clipper

Schematics – XOR

architecture for smart grid based consumer end solution

Technology