1. Development and Operation of Active Distribution Networks: Results of CIGRE C6.11 Working Group (Paper 0311)
Dr Samuel Jupe
(Parsons Brinckerhoff)
UK Member of CIGRE C6.11 Working Group
Session 5: Planning and System Development
Thursday 9th June 2011

2. Global definition of active distribution networks (ADNs)
Overview
Introduction
Global definition of active distribution networks (ADNs)
Current status of deployment
Stakeholder recommendations
Summary and future work
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

3. Introduction Working Group C6.11 Terms of Reference:
August 2006 – August 2010
27 members and experts representing 14 countries
Terms of Reference:
Global definition of Active Distribution Networks (ADNs)
Current status of deployment
Stakeholder recommendations
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

4. Shared global definition
Active distribution networks (ADNs) have systems in place to control a combination of distributed energy resources (DERs).
DERs are defined as generators, loads and storage.
Distribution system operators (DSOs) have the possibility of managing the electricity flows using a flexible network topology.
DERs take some degree of responsibility for system support, which will depend on a suitable regulatory environment and connection agreement.
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

5. Actual status of deployment
24 flagship projects across the world
Analysed according to:
Integration level
Enabling technologies
Application
Benefits
Research and development needs
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

6. Enabling Technologies
Hardware
Enabling Technologies
Application
Benefits
R&D Needs
Power electronics (applied to distribution networks)
Active and reactive power control
• Grid Stability
• Increased power transfer
• Lower cost of power electronics
• Reliability of components
Intelligent devices and communication media
Information and communication technologies (ICT)
• Active distribution network management
• Coordination and control of new and existent elements of the network
• Network information collection
• Cost
• Reliability
• Standards for interconnection
• Integration capability
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

7. Distributed monitoring and control Enabling Technologies
Application
Benefits
R&D Needs
Power flow management
Optimal network management and active generation constraint for wind farms
• Low cost solution for increased energy export
• Avoid network reinforcement
• Peak shaving
• ICT and protection devices reliability
• Regulatory issues
Dynamic line rating (DLR)
Real-time thermal capacity of the network
• Increased capacity to accommodate DG
• Losses increment
• ICT reliability
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

8. Enabling Technologies
Network Operation
Enabling Technologies
Application
Benefits
R&D Needs
Demand side management (DSM)
Load reduction / shifting, price responsive, direct load control
• Frequency control
• Reduce consumer costs
• Avoid network reinforcement
• Peak shaving
• Customers behavior
• Regulatory issues
• Variable price structures
Distributed control of DER
Aggregation of small and medium DG / Virtual power plant (VPP)
• Integration of DG to optimal operation and economic maximization
• Balancing of variable generation
• Cost
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

9. Stakeholder recommendations
Grid operation
System planning
Regulatory environment
Awareness building
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

10. Stakeholder recommendations:
Grid operation
Review protection systems
Updating Grid Codes
Communication systems to support data exchange
Mechanisms in place for grid users to provide ancillary services
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

11. Stakeholder recommendations:
System planning
Proactive dialogue of system planners with stakeholders
Consider move to meshed network topologies
Move to probabilistic grid-based approaches
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

12. Stakeholder recommendations: Regulation and awareness building
Mechanisms for connection of DER
Allow grid operators to integrate DER into grid operations
Educate grid users on grid operation
Feedback loop from operation to planning
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

13. Summary and future work
Overview of activities of CIGRE WG C6.11
Global definition of active distribution networks
Actual status of deployment
Stakeholder recommendations
New CIGRE Working Group has been formed:
C6.19 The planning and optimisation of active distribution networks
Samuel Jupe – UK – Session 5: Planning and System Development – 0311

14. Development and Operation of Active Distribution Networks: Results of CIGRE C6.11 Working Group (Paper 0311)
Dr Samuel Jupe
Full report now available:
CIGRE Working Group C6.11: “Development and Operation of Active Distribution Networks”,
Technical Brochure No. 457, April 2011