Distribution Management System Implementation at Florida Power & Light Paul A. Kuntz, Ph.D., PE IEEE-Northwest Energy Systems Symposium (NWESS) University of Washington Seattle, WA 98195 February 21-22, 2008

Outline Introduction Florida Power & Light Project Demo

Introduction Distribution Management System (DMS) – system that allows the distribution operators to more effectively and efficiently operate and manage the distribution system DMS commonly includes the following software and interfaces User interface Network applications System interfaces – SCADA and OMS DMS unique characteristics Extremely large model size Insertion and removal of temporary modifications Handling of large volume of incremental updates

Introduction DMS benefits include the following: Improve operational efficiency through user interface consolidation (DMS/SCADA/OMS) Improve reliability and safety through better visualization of distribution network status and use of switching plan tools Improve reliability indices and customer satisfaction through faster and more predictable outage restoration Reduce penalty payments through faster outage restoration Reduce energy losses and network operational costs with coordinated Volt/VAR management Reconfigure control center operations dynamically

Florida Power & Light System Customers 4.52 M Generation Capacity 19.05 GW Transmission Lines 64,000 miles Distribution Substations 550 Distribution Feeders 3,850 Circuit Segments 1.5M Distribution Transformers 1.0 M Managed Feeder Capacitors >7,000 User Interface Positions 500 Current Analogs/Points >150K

Florida Power & Light Project Replacement of existing EMS Development of a full DMS User interface Network applications including power flow, short circuit analysis, and Volt/VAR Control Development of a complete clearance and switching management system Interface to existing Outage Management System

Demo System Structure Network View Network Analysis Network Optimizer Control Room Operations User Interface Network Operations Model Network Switching Operations Network Analysis Power Flow Load Allocation Network Optimizer Fault Isolation and Service Restoration SCADA Distribution Simulator Asset Model Static model - CIM export Sub-trans. & distribution 150,000 buses 400,000 customers

Demo