Smart Gridm5151117
Yumiko Kimezawa
August 12, 2011 1Colloquium
Outline
• Background• What’s Smart Grid ?• Goal of Smart Grid• Conceptual diagram• Smart meter• Drawback of Smart Grid• Conclusion
August 12, 2011 Colloquium 2
Background
August 12, 2011 Colloquium 3
Traditional electric power•Thermal power plant
- Burn coal- Burn heavy oil
CO2 emission
Alternate energy• Solar electricity• Wind power
Affected by the weather
Smart GridStable electric power supplies
What’s Smart Grid ?
• Introduction of IT into a grid ( power network)- Controlling flow of electricity from both supply
side and demand side- Optimizing the use of electric
August 12, 2011 Colloquium 4
Goals of Smart Grid1. Monitoring amount of power used at office or home in detail
2. Holding electrical needs constantly
3. Adjusting to production of electricity in detail
4. Monitoring production of electricity in unstable way (Solar electricity, Wind power)
5. Management of electric power selling
6. Countermeasure for electrical power saving
August 12, 2011 Colloquium 5
•Decrease of wasteful energy production•Reducing emissions of CO2•Low loss of electrical energy
Advantages
Comparisons with traditional grid
August 12, 2011 Colloquium 6
Traditional grid
Supply
Demand Demand
Demand
DemandDemand
Demand
Smart grid
Supply
Demand
Demand
Demand
DemandDemand
Demand
Supply: Information and telecommunications networks
Flow of electricity: Information and telecommunications networks
Flow of electricity
( Some is supply)※
EV
Smart meter
• Electrical power meter for the realization of Smart Grid- Monitoring electricity use of any houses or business offices- Reporting to electrical power companies on monitoring results- Having functions such as adjusting electricity use automatically
August 12, 2011 Colloquium 7
If smart meters become popular
•Holding electricity use at any time become possible- It’s not necessary to read electricity use by people
•Detailed distribution of electrical power- Cutting wasteful plants for electrical generation
Drawback of Smart Grid
August 12, 2011 Colloquium 8
•Security- Infrastructure of Smart Grid• Advanced communication systems and techniques
- Insufficient measures towards security
It is essential to overcome vulnerability of security
But
Conclusion
• Smart Grid is useful for future generations- Global heating countermeasure- Planned blackouts countermeasure
• In Japan, Smart Grid will be planning gradually
• Smart Grid is facing the problem of security
August 12, 2011 Colloquium 9
August 12, 2011 Colloquium 10
Conceptual diagram
August 12, 2011 Colloquium 11
Hydroelectric plant
Wind power plant
Atomic power plant
Thermal power plant
Photovoltaic power plant Electric
vehicle
Office buildingFactory
Charging facility for EV
Controlled by IT
Substation
Houses
Rechargeable battery
Rechargeable battery
Control for electric transmission
Flow of electricity
Controlled by IT
Equipment for saving energy
Commerce facility
Solar panel
Smart meter
• Electrical power meter for the realization of Smart Grid
• Concept holding electrical needs and the situation of generating electricity in detail and
• Allocating them to every demands in an optimal condition
August 12, 2011 Colloquium 12