smart microgrid technology n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Smart Microgrid Technology PowerPoint Presentation
Download Presentation
Smart Microgrid Technology

Loading in 2 Seconds...

play fullscreen
1 / 27

Smart Microgrid Technology - PowerPoint PPT Presentation


  • 435 Views
  • Uploaded on

Smart Microgrid Technology. 2010. 4. 8 Dr. Hak -Man Kim University of Incheon hmkim@incheon.ac.kr. Power Grid. An energy network related to generation, transmission, and distribution of electric power. Configuration of Distribution System with MG. D istribution system ,

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Smart Microgrid Technology' - oni


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
smart microgrid technology

Smart Microgrid Technology

2010. 4. 8

Dr. Hak-Man Kim

University of Incheon

hmkim@incheon.ac.kr

power grid
Power Grid
  • An energy network related to generation, transmission, and distribution of electric power

Presented by Hak-Man Kim @ UI

configuration of distribution system with mg
Configuration of Distribution System with MG

Distribution system,

Owned and operated by a power utility

Medium/High level Power System

Owned and operated by private owners

Load

Load

Load

.

.

.

Microgrid 1

Microgrid N

Load

Presented by Hak-Man Kim @ UI

paradigm shift in power grid
Paradigm Shift in Power Grid
  • Climatic Change Convention

- Distributed Generation

- Microgrid

  • Energy Market
  • Power IT

- Smart Grid based on ICT

- Cyber Security in Power Grid

Presented by Hak-Man Kim @ UI

smart microgrid in paradigm shift of power grid
Smart Microgrid in Paradigm Shift of Power Grid

Climatic

Change

Convention

Energy

Market

Power IT

Smart Microgrid

Presented by Hak-Man Kim @ UI

microgrid mg
Microgrid (MG)
  • Small power grid composed of distributed generators, storage devices, and loads

Presented by Hak-Man Kim @ UI

benefits of mg
Benefits of MG
  • The use of micro-generation based on combined heat and power (CHP) or small-scale renewable generation

 reducing dependency on fossil fuels

 reducing environmental pollution

  • During disturbances on the main network, Microgrids disconnect and continue to operate automatically

 improving reliability and power quality to the consumer

  • Potentially, the expansion and operation costs of traditional power system can be reduced

Presented by Hak-Man Kim @ UI

research of mg
Research of MG
  • Recently, the development, research and demonstration program for the Microgrid are progressing in many countries.

- Example: Japan

  • It is anticipated that Microgrid will leap into a commerce stage in the near future.

NEDO: The New Energy and Industrial Technology Development Organization

Presented by Hak-Man Kim @ UI

example sendai project 1
Example: Sendai Project(1)
  • Summary

- NEDO’s Sendai Project

- include PV micro-generation, gas engines, a molten carbon fuel cell, as well

as series and shunt power compensation devices(Dynamic Voltage Restorers,

DVRs)

- located in Tohoku Fukushi University

Presented by Hak-Man Kim @ UI

example sendai project 2
Example: Sendai Project(2)

Located in Tohoku Fukushi University

Presented by Hak-Man Kim @ UI

example sendai project 3
Example: Sendai Project(3)

Presented by Hak-Man Kim @ UI

operation mode of mg
Operation Mode of MG
  • Important requirement of MG operation

- to maintain a constant frequency such as 50 Hz or 60 Hz

* real power (P) : freq↑(Ps>PD), freq↓(Ps<PD)

  • Grid-interconnected mode
  • - can trade power with the power grid for the shortage or surplus power in the
  • Microgrid
  • Islanded mode
  • - an isolated Microgrid by fault occurrence in the interconnected power grid or
  • geographical isolation such as an island

- decrease in generation for supply excess load-shedding for supply shortage

Presented by Hak-Man Kim @ UI

smart mg
Smart MG
  • An autonomous MG
  • Necessity of Research
  • - economy of scale
  • - economic and efficient operation and management
  • - to protect privacy of small-scaled participants
  • Function
  • - operation & control
  • - protection & maintenance
  • - management
  • - etc.

Presented by Hak-Man Kim @ UI

agent based smart mg
Agent-based Smart MG

Presented by Hak-Man Kim @ UI

what is an agent

State vectors

A1

Agents

A2

Environment

A3

A4

An

Active Agents

Action

What is an Agent?
  • An intelligent agent, which is simply called an agent, can perceive its environment, make a decision against changes of the environment, and act to resolve them autonomously according to its design purpose

Presented by Hak-Man Kim @ UI

existing multiagent system for mg
Existing Multiagent System for MG
  • Dimeas and Hatziargyriou suggested a multiagent system based on an auction

algorithm for Microgrid operation in the Grid-interconnected mode

- competitive model based on auction market of power

  • Kim and Kinoshita suggested a cooperative multiagent system for Microgrid

operation for the Grid-interconnected mode & Islanded mode

- cooperative model based on the modified CNP

Presented by Hak-Man Kim @ UI

mg operation procedure
MG Operation- Procedure -
  • In general, power Grids are operated by a plan for the next interval
  • We assumed that MG operation will be operated by a plan for next interval

Presented by Hak-Man Kim @ UI

mg operation grid interconnected mode
MG Operation - Grid-interconnected Mode -
  • Core of Microgrid operation

: to maintain the frequency of Microgrid system in allowable ranges

  • Relationship between frequency and power

if (Psupply> Pdemand) than freq↑, if (Psupply< Pdemand) than freq↓

 balance is very important

  • Frequency Maintenance in Microgrid

if (Psupply> Pdemand) than sell power to power grid or charge to storage

if (Psupply< Pdemand) than buy power from power grid or discharge from storage

Presented by Hak-Man Kim @ UI

mg operation islanded mode
MG Operation - Islanded Mode -

Presented by Hak-Man Kim @ UI

design of mas for mg
Design of MAS for MG
  • Multiagent System for MG

Ag = {AgMGOCC, AGL, AGDG, AGS, AgPG}

  • For communication among agents: a modified version of the Knowledge Query and Manipulation Language (KQML) is employed
  • - Massage form
  • (<performative> :from <agent name> :to <agent name> :content <OAV type data>)
  • For knowledge sharing among agents, the following template format is used:
  • (template name :ID identifier OAV type data list)
  • State transition function (T)

Presented by Hak-Man Kim @ UI

contract net protocol cnp
Contract Net Protocol (CNP)

Presented by Hak-Man Kim @ UI

implementation
Implementation
  • DASH multiagent platform as a development tool of agent systems
  • IDEA as a design environment of DASH agents
  • Java language for user defined functions

Presented by Hak-Man Kim @ UI

experiments
Experiments
  • Islanded mode
  • Grid-interconnected mode

Presented by Hak-Man Kim @ UI

results of experiments
Results of Experiments
  • Islanded mode
  • Grid-interconnected mode

Presented by Hak-Man Kim @ UI

future work
Future Work
  • Improve intelligence of Agents
  • - Game theory, Fuzzy, Neural Network, etc
  • Other Functions
  • - control
  • - protection
  • - maintenance
  • - management
  • - efficient communication links & security
  • - etc.
  • Test bed

Presented by Hak-Man Kim @ UI

references
References
  • H.-M. Kim, and T. Kinoshita, " A Multiagent System for Microgrid Operation in the

Grid-interconnected Mode”, accepted, Journal of Electrical Engineering & Technology

  • H.-M. Kim, and T. Kinoshita, " A Multiagent System for Islanded Microgrid Operation”,

submitted, IEICE Trans. on Communications

  • H.-M. Kim, and T. Kinoshita, " A Microgrid Operation based on a Power Market

Environment,” Journal of the Korean Institute of Illuminating and Electrical Engineers,

Vol. 23, No. 11, pp.61-68, Nov. 2009.

  • H.-M. Kim, and T. Kinoshita, " Multiagent System for Microgrid Operation based on a

Power Market Environment,” INTELEC 2009, Songdo, Korea, Oct. 2009.

  • R.H. Lasseter, "Microgrids", IEEE Power Engineering Society Winter Meeting, 2001, vol. 1, pp. 146-149
  • N. Hatziargyriou, H. Asano, H. R. Iravani, and C. Marnay, “Microgrids”, IEEE Power and Energy Magazine, Vol. 5, Issue 4, pp. 78-94, July-Aug. 2007
  • A.L. Dimeas, and N.O. Hatziargyriou, “Operation of a Multiagent System for Microgrid Control”, IEEE Trans. on Power Systems, Vol. 20, Issue 3, pp. 1447 –1455 Aug. 2005

Presented by Hak-Man Kim @ UI