09-04-2012, 03:24 PM
SMART GRID
SMART GRID.pptx (Size: 1.92 MB / Downloads: 63)
INTRODUTION
Smart grid will change the design and operations to lead to more efficient, effective power delivery in the future.
The term "smart grid" refers to the use of advanced communications technologies and modern computing capabilities
A smart grid delivers electricity from suppliers to consumers using two-way digital technology.
For achieving a 21st century intelligent electricity network needed to support and enable a 21st century growing economy in an ever competitive global market
HISTORY
Today's alternating current power grid evolved after 1896, based in part on Nikola Tesla's design published in 1888.
Over the past 50 years, electricity networks have not kept pace with modern challenges, such as:
Lack of Security problems.
Maintaining stable power significantly more complex.
High demand for an electricity supply that is un-interruptible.
PROBLEMS IN PRESENT GRID
Lack of security problem, less efficient and controlling is manually.
These system are more complex.
Enabling decentralized power generation, so homes can both an energy client and supplier.
WHAT IS SMART GRID?
The entire power system viewed in a holistic manner.
A smart grid delivers electricity from suppliers to consumers using two-way digital technology.
Utilize new technologies to the best advantage
Designed, planned and operated to realize utmost performances
Why Smart Distribution Grids areNeeded ?
Distribution system deficiencies
– Little flexibility and intelligence
– End of useful life
– End-use load variations
– Little visibility
– Efficiency
Consumer cost of service issues
Why Smart Distribution Grids areNeeded ?(cont)
New Technology Advancements
– Transportation
– Advanced metering
– Power electronics
– Communication networks
– Advanced computing systems
Higher Cost of Energy Resources
What will Smart Distribution GridsLook Like ?
Low cost sensors and smart meters
Distributed information and intelligence
Smart systems and controls
High temperature superconducting materials
High efficiency transformers
Improved fault limiting devices
OBJECTIVES OF SMART GRID
The construction of 21st century electric system that connects everyone to
Abundant
Affordable
Transparent
Efficient
Reliable electric power any time.
FEATURES OF SMART GRID
Existing and planned implementations of smart grid provide a wide range of features to perform the required functions.
Load adjustment.
Demand response support.
Decentralization of power generation.
Price signaling to consumers.
TECHNOLOGY
Smart grid technology can be grouped into five key areas;
Integrated communications
Sensing and measurement
Smart meters
Phasor measurement units
A Wide-Area Measurement Systems (WAMS)
SECURITY
It’s time to get real about the level of security needed to product our energy infrastructure.
Smart grid provides a security causing reliable and safe operation for authorized users while protecting against infraction, limiting, and damage and speeding recovery
GENERAL ECONOMIC DEVELOPMENT
As customer can choose their electricity suppliers, depending on different tariff methods
Reduction of maintenance and replacement costs will stimulate more advanced control.