Perspective of smart grid in Bangladesh

Transition of Electric Grid ofBangladesh to the Smart Grid

Presented by:

Abir Chowdhury, ET083031

S.M. Eftehar Uddin Chowdhury, ET083014

Department of Electrical and Electronic Engineering

International Islamic University Chittagong

What is Smart Grid?

A smart grid is the technology that incorporatesadvanced sensing technologies, control systems andintegrated communications into the existingelectricity grid.

Smart Grid is incomparable to the existing grid inthe aspects of smart central generation, smarttransmission, smart substation, smart distributionfeeders and smart metering

Block diagram of Smart Grid

Characteristics

Eco-friendly

Economic

Well-executed

Secure

Reliable

Resilient

Self-healing

Components

Integrated communication systems

Advanced Sensing

Metering

Measurement infrastructure

Comprehensive decision support

Human interfaces

Two-waycommunications

Inter-operability betweenadvanced applications

Reliable and securecommunications with lowresponse-time andadequate bandwidth

Robust System security toprevent cyber-attacks

System stability and reliabilitywith advanced controls

The communications technology for datatransmission between smart meters andelectric utilities

Decentralization

Substation: Information gatheringand decision making

Electricity dispatching center:strategic management of gridintelligence

Computerized management:transmission and distribution

To form grids which are more smart, receptiveand flexible than present power grids, Smartgrid employ decentralization process

Why the Grid needed to be Smart?

•To deal with the mounting energy demand of the world

•To lessen the cost of power disturbances and systemlosses throughout the world

•To reduce CO2 emission by enhancing Green energygeneration and consumption

•To stop Electricity price hiking by controlling demandand supply

•To provide reliable services for a long period byremoving aged infrastructure and employees

What does a Smart Grid do?

•Allows duplex electricity flow based on availableinformation and consumer preferences

•Brings renewable energy to the traditional grid

•Permits fast load relief to cope with fluctuations ingeneration

•Brings rises in energy efficiencies and drops in carbonemissions

•Develops the reliability, performance and overallefficiency of the utility

•Enables consumer empowerment to manage their energyusage and financial savings

Present Grid Condition of Bangladesh

•Increasing demand of electricity

•Lack of fuel

•Nonfunctional load dispatch center

•Corruption in administration

•High system losses

•Delays in completion of new plants

•Low plant efficiencies

•Erratic power supply

•Electricity theft

•Blackouts

•Shortages of funds for power plant maintenance

Problems of Bangladesh energy sector

Rudimentary phases to enable Smart Grid

planning at consumer-premise, AC/ DC feed-inand different voltage level coordinateddevelopment

Improving the functions and performance ofexisting system in an integral manner

Tracking down the connections betweendifferent power grid monitoring and controllingindexes

Assembling a logic structure based powersystem monitoring and controlling index system

Implementation of dynamic security monitoring,power system pre-alarm processing and pre-control

planning at consumer-premise, AC/ DC feed-inand different voltage level coordinateddevelopment

Improving the functions and performance ofexisting system in an integral manner

Tracking down the connections betweendifferent power grid monitoring and controllingindexes

Assembling a logic structure based powersystem monitoring and controlling index system

Implementation of dynamic security monitoring,power system pre-alarm processing and pre-control

Underscored sectors for smart grid

•System Control and Optimization

•Renewable and Distributed Energy Resources(DER) Integration

•Energy Storage Solutions

•Customer-side Applications

•Communications Architecture

•Efficient Manpower

•System Control and Optimization

•Renewable and Distributed Energy Resources(DER) Integration

•Energy Storage Solutions

•Customer-side Applications

•Communications Architecture

•Efficient Manpower

Consequence of Smart Grid implementationin Bangladesh

Consequence of Smart Grid implementationin Bangladesh

•improve the efficiency and reliability ofelectrical power distribution system

•establish long-distance and large-capacitypower transmission systems

•diminish the bulk of energy in the cities andthe pressure of transmission bydecentralization

•Reduce environmental pollution

•accelerate the renovation of national economy

•improve the efficiency and reliability ofelectrical power distribution system

•establish long-distance and large-capacitypower transmission systems

•diminish the bulk of energy in the cities andthe pressure of transmission bydecentralization

•Reduce environmental pollution

•accelerate the renovation of national economy

Smart grid:potential solution of power failure

Smart grid:potential solution of power failure

Smart grid can spontaneously recalculate anddistribute electricity to all consumers equitably butat reduced amount leaving no premises withoutelectricity in case of load-shedding

Digital radios and R/C circuit breakers can be setup to optimize energy flow for wirelessly controlof electricity distribution and energy conservation

Digital radio and R/C circuit breakers

Locally manufactured Digital radios and circuitbreakers can be implemented to thedistribution system for automatic control andmanagement of the power grid

A lot of circuit breakers are needed tomaintain the power system stability, cable andtransformer protection, load balancing andnetwork stability

Locally manufactured Digital radios and circuitbreakers can be implemented to thedistribution system for automatic control andmanagement of the power grid

A lot of circuit breakers are needed tomaintain the power system stability, cable andtransformer protection, load balancing andnetwork stability

How do Digital radio and R/C circuitbreakers work?

•Throughout energy shortages, the Smart gridradio transmitters, installed at the electricalpoles or sub-stations, will broadcast encodedmessage over the air to radio receiver,attached to distant circuit breakers.

•This encrypted message will switch off only afraction of electricity supplied to variousdestinations.

Advantages of new digital radiotechnologies

1.Almost no change to existing electrical wiring

2.Very low cost and small Radio Transmitters andReceivers

3.License-free radio band

4.Greater employment chance by designing andmanufacturing both digital radios and circuitbreakers locally

5.Become a pioneer of smart grid in third worldcountries

Smart substations for Bangladesh

•Reports information such as electricityconsumption

•Performs switchboard operation

•Gives decision making back to the electricitydispatching control center