an architecture for flexible and autonomous network ... 4/main... · an architecture for flexible...

Prague, 8-11 June 2009

An architecture for flexible and autonomous network management systems

Euan Davidson -UK Session 4 Paper 0833

E. M. Davidson, S. D. J. McArthur, J. R. McDonald, P. C Taylor*

Institute for Energy and Environment, University of Strathclyde*Durham University


ANM requirements & the AuRA-NMS conceptThe building blocks of AuRA-NMS

Hardware Software

The AuRA-NMS agent-based architecture2 case study networks:

33kV interconnected11kV radial

Status of development & future work


Introduction


Autonomous Regional Active Network Management SystemProject partners include:

7 Universities in the UK2 Distribution Network Operators in the UKABB

Authors’ role - system architecture & control algorithm development


AuRA-NMS


Autonomous Regional Active Network Management SystemA fully integrated active network management system:– Addresses multiple issues:

Power flow managementSteady-state voltage controlRestoration

– Coordination across multiple substations– Flexible and extensible solution


AuRA-NMS



Example NetworkChallenges:DG Access

Deferral of reinforcementPlanning

Network PerformanceCML/CILosses

Complexity of ANM Solutions

Flexibility/ExtensibilityGraceful Degradation



Example NetworkCurrent network automation strategies:

One of 9 such schemes!



AuRA-NMS developmentA structured development process:

Specification of requirementsFunctional specificationUnit prototypes & testing- Power Flow Management;- Voltage control; and- Restoration

Integration with AuRA-NMS agent architectureTesting through real time simulation



Hardware Building BlocksIEC 61850 compliant substation computing equipment Existing IEDs, augmented with new IEDs, PLCs and PACsExisting/augmented communications infrastructure



Hardware Building Blocks

COM6xx unit provides:Substation computing platformIEC 61850 gateway services for legacy protocols



Software Building BlocksStandards:– IEC 61850 data model– Common Information Model– Foundation for Intelligent Physical Agents

https://www.fipa.orgLegacy software components:– Off-the-shelf FIPA compliant MAS platform– ABB’s Legacy protocol to IEC 61850 translation software– Off-the-shelf load flow engine– Distribution state estimator (under development by ABB)



Software Building BlocksAuRA-NMS agent-based software for:– Power flow management– Automatic restoration– Voltage control– Arbitration



Software Building BlocksM. J. Dolan, E. M. Davidson, G. W. Ault, J. R. McDonald. Techniques for managing power flows in active distribution network within thermal constraints. CIRED 2009, Prague, 2009

T. Xu, P. C. Taylor, E. M. Davidson, S. D. J. McArthur, M. Prodanovic, T. Green. Case-based reasoning for distributed voltage control. CIRED 2009, Prague, June, 2009



Software Architecture

OPC Servers (IEC 61850 data model)

Agent Message Transport System

DF AMS

ArbitrationAgent

PFMAgent

VCAgent

ARAgent

DistributionState Estimator

PlatformFederator

COM6xx unit

IEDIEDIEDIEDIEDIED IEDIEDIED

IEDIEDIED



Software Architecture



PlatformFederatorDF AMSDF AMS


IEDIEDIED

COM6xx unit



PlatformFederatorDF AMSDF AMS


IEDIEDIED

COM6xx unit

Power systems control functionality can be distributed across COM6xx Units

TCP/IP



Case Study Network 1Deployed functionality:• Power flow management• Voltage control• Arbitration service



Case Study Network 2

Deployed functionality:• Power flow management• Voltage control• Automatic restoration• Arbitration service



Status of Development• Testing of MAS platform on COM6xx units• Unit testing of individual approaches using real

time simulation:– Power flow management– Voltage control– Restoration

• Most robust approaches to be integrated with the AuRA-NMS architecture

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