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Wireless Remote Monitoring and Control DistribuTECH 2002 March 1, 2002

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  1. Wireless Remote Monitoring and ControlDistribuTECH 2002March 1, 2002 by Carl R. Goeckeler, P.E. 1997 DA/DSM “Best Utility Project” Innovation Award, KCP&L

  2. KCP&L Service Territory 2000 System Peak • 3,374 MW • 91% Metro Load Customer Retail Base • 409,536 Residential • 51,415 Commercial • 2,367 Industrial • 119 Other

  3. Communications - Wish List • Two-Way • Secure • Use Public Infrastructure/Leverage Available Systems • Broad Coverage • Broad Bandwidth • Low Cost Data Charge • Low-Cost Radio Deployment • Reliable System • RTU Growth Easy and Convenient/Scaleable • Supports Multiple Protocols/Flexible

  4. LiveData Software on Typical PC Utility WAN using Ethernet or TCP/IP Capacitor Control KCP&L D.A. ArchitectureLinks SCADA to Corporate LAN Operator Switch Consoles Control Schlumberger/Sema Communications Other DA Field Equipment (reclosers, regulators, etc.) Planning Engineer Workstations LiveData Serversrunning WinMon S/W (PC-based, with WinMon®) Capacitor Control Switch Control Schlumberger/Sema Advanced Communications Applications LiveData Software Other DA On Typical PC Field Equipment (reclosers, regulators, etc.) UTILITY LAN (UCA over TCP/IP)

  5. KCP&L Fixed Network System • Advantages for User • Full Two-Way Capability for D.A. • No Communications Layout Design • No Radio or Communications System Maintenance • No Capital Outlay for System • Disadvantages for User • Not in “Control” of Communications • Dependent upon Protocol by Provider • Dependent upon Performance/Availability by Provider • Public Communications Systems Not Leveraged • Recurring Lease Charges • Capacitor Automation Lower Priority than Meter Reading

  6. D.A. Features Supported by Two-Way Communications Features Supported: • Present Alarms and Analogs • Remote Control Operation • Read and Change Setpoints • Launch Global Commands • Access to Diagnostics • Historical Analog Profiles • Reports • On-Line Graphing • Download Electronic Files

  7. Graphing Data On Line

  8. Use of Global Command to Change Setpoints / Force Capacitors On Line July 27, 1999, Early Morning: • Needed All Banks On • Query - 168 Banks Off Line • Global Command Issued • All Available Banks On Line • 99.99% Leading Power Factor • Proactive Voltage/VAr Support

  9. KCP&L Fixed Network – Lessons Learned • Two-Way Communications is Important • Verify Switching • Setpoint Changes and Verification • Supplies Data for Distribution Engineering Analysis • Look for Ways to Leverage Available Communication • SchlumbergerSema for AMR • Public Communications Systems • Metropolitan Coverage has Been Good • Rural Areas - Not Cost Justified • Adequate for Capacitor Automation • Communication Performance Generally Acceptable

  10. KCP&L Need for Rural Coverage • Expansive Area/Travel Time an Issue • 48 Substations (34 – 12 kV) with No Automation • No Automated Outage System in Place • Volt/VAr Support Needs Improvement • Voltage Rise from Capacitors Significant • Voltage Regulators • Reclosers • Line Monitors/Fault Detectors • Few Economical Communication Solutions

  11. How Telemetric Works

  12. KCP&L/Telemetric DNP Project • Develop Remote Telemetry Module (DNP-RTMTM) • Configurable for All DNP RTUs/IEDs • Supports Local Rule-Based Criteria • RTUs/IEDs - Now Electronic and “Radio Ready” • Integration Plans • Now - Capacitors, Regulators, Load Tap Changers, Switches • Future - Reclosers, Fault Indicators, Line Monitors • Develop DNP- XchangeTM • Delivers DNP to Utility • Integration into WinMon® • Integration into EMS/CADs

  13. Remote Telemetry Module (RTM) • Connects to DNP Speaking RTUs/IEDs • Near Real-Time • Works with various DNP-based Devices • Local Configurable Program • User Specifies Up to 99 Data Points • Rule Based Algorithm • Can Receive Up to 500 Commands • Polls Connected RTUs/IEDs • Data Transmitted - Report By Exception • Supports Queries • Supports Time-Scheduled Call Reports • May View Data on Secure Web Page • Can Also Tunnel to Utility EMS Terminal Serial Connection (DNP 3.0 Protocol) Field RTU Remote Telemetry Module DNP Rule Radio Master Engine I/F

  14. DNP X-changeTM Features • Connects Telemetric NOC to Utility • Functions as DNP Slave to SCADA System • All DNP Packets Include • Utility ID Number • Unit ID Number • Data Point Number • Two Reporting Models • Report By Exception • Polling SSL Connection DNP-Xchange™ Telemetric NOC Telemetric Micro RTU or DNP-RTM™ Cellular Data Network SCADA System TCP/IP DNP

  15. Distribution Capacitor Neutral Current Detection Detects and Alarms for: • Blown Fuse • Failed Capacitor Switch • Failed Capacitor Unit • Damaged Control Cable Wiring • High Harmonic Current

  16. The Need to Monitor Fixed Banks Year 2000 – Fixed-Bank Capacitor Patrol Results • 400 Capacitor Banks Patrolled • 16% Capacitor Banks with “As Found” Problems • 26.1 MVAr Out of Service (8.3% of Fixed Capacity) • Additional 2% Banks with Switching Problems • Higher Percentage of Problems in Non-Automated (Outlying Regions) Areas

  17. Develop Fixed Bank Detector • Need  Results • Reduce O&M Costs  Eliminate Capacitor Patrols • Additional Monitoring  Reduce O&M Field Checks • Notification for Blown Fuses  Reduces System Losses • Better VAr Regulation  Install Fewer Banks • Outage Notification  Voltage Loss Detector • Possible Solution • Integrate into 4-Jaw Socket • Accepts Neutral Current Sensor • Low Target Price • Low Annual Communications Cost • Remote Monitoring / Switching Capability • Reports Capacitors Switched Off Line • Reports Analog Neutral Current Value • Outage Detection • DNP to Utility SCADA

  18. Plans for the Present and Future • Capacitor Automation • Target Use of Fixed Bank Controls • Develop/Deploy Neutral Sensing Option • Develop/Deploy Lower Cost Capacitor Controls • Distribution Automation • Use Fixed Network for Full Featured Controls • Use Control Channel Solution as Appropriate • Monitor Growing Communication Solutions • Add DNP to Protocol Suite • Integrate RTM into Other RTUs • Regulators • Reclosers • Fault Detectors • Line Monitors