Transmission Resiliency & Security

Transcription

1 Transmission Resiliency & Security Response to High Impact Low Frequency Threats Richard Lordan, PE Senior Technical Executive NCSL-NARUC Energy Risk & Critical Infrastructure Protection Workshop May 25, 2016

2 Electric Power Research Institute 2

3 Transmission Grid Resiliency Externalities Physical Security GMD/ EMP Tornados Hurricane/ Ice Storms High Impact Low Frequency (HILF) Floods Straight Line Winds Seismic Fires 3

4 Triggers SE Tornados - April, 2011 Derecho June, 2012 Increasing Trend in $Billion Disaster Events Sandy October, 2012 Metcalf April, 2013 EMP Commission Report

5 EPRI Risk Management Framework for Grid Resiliency Threat Characterization Physical Security Threat Characterization GMD Threat Severe Characterization Weather Threat Characterization EMP/IEMI Severity Benchmark Severity Severity Severity Scenario 1 Scenario 2 Scenario 1 Scenario 3 Scenario 2 Scenario Scenario 4 Severity 1 Scenario 13 Scenario Severity 2 2 Scenario 4 Likelihood Scenario 3 Severity 3 Scenario 4 Likelihood Likelihood Likelihood Severity 4 Trial Implementation and Stakeholder Feedback Severity Component Vulnerability Catastrophic failure Likelihood No effect Mitigation Option (Individual and Multi-threat) Risk Reduction Investment Cost-Effectiveness and Decision Support (Hardening, Recovery) Impacts Customer Impacts Utility Impacts Public Impacts Regulatory Impacts Benefits and Stakeholder Communication 5

6 Grid Resiliency Objectives Prevention Improve Recovery Optimized Investment 6

7 High-Altitude Electromagnetic Pulse (HEMP) - To lay ground work for GMD, EMP discussion Electric Field Transients Created E1 E2 E3 nano second rise time, Epeak ~ 50kV/m, Similar frequency content as lightning Epeak ~ 100V/m Long duration and low frequency Epeak ~ 40 V/km, Values Location Dependent Reduces with distance from ground zero E1, E2 & E3 reduction different w.r.t distance E1 Waveshape changes with distance 7

8 Geomagnetic Disturbance (GMD) Solar Flare (CME) Interact with Earth s Magnetic Field DC Currents in Transmission Lines Transformer Core ½ Cycle Saturation Harmonic Distortion Relay Mis-operations VAR Consumption System Stability Local Heating Transformer Damage 8

9 Geomagnetic Disturbances (GMD) EPRI Research Define 100 Yr Storm US Soil Conductivity Map Modeling Tools & Approaches Transformer Testing & Models Monitoring Application of Mitigation Approaches Technical Basis for NERC (North American Electric Reliability Corporation (NERC) GMD Task Force 9

10 EMP Project Plan Threat Characterization Three year Research Plan beginning April, 2016 Member and Stakeholder Communication EMP Vulnerability Trial Implementation Decision Support Impacts Mitigation, Hardening & Recovery 10

11 EMP Project Plan Threat Characterization Identify conservative, unclassified HEMP environment(s) (E1,E2,E3) to assess the potential impacts on bulkpower system components. Investigate the physics of HEMP propagation and coupling to power system infrastructure. Member and Stakeholder Communication EMP Vulnerability Trial Implementation Decision Support Impacts Mitigation, Hardening & Recovery 11

12 EMP Project Plan Threat Characterization Identify the vulnerability of transmission system and support assets: P&C, communications, SCADA, cables, transformers, insulators, etc.) exposed to the HEMP threat defined in Threat Characterization Member and Stakeholder Communication EMP Vulnerability Trial Implementation Decision Support Impacts Mitigation, Hardening & Recovery 12

13 EMP Project Plan Threat Characterization Develop criteria and techniques for performing vulnerability assessments of bulk-power systems exposed to HEMP Assess impact of sub-system failure on power delivery component performance Assess impact of loss of generation, distribution, communications, load, water and gas on bulk-power system performance Assess impact of loss of systems that support power delivery such Trial as GPS, cell phones, transportation, Implementation etc. EMP Vulnerability Decision Support Member and Stakeholder Communication Impacts Mitigation, Hardening & Recovery 13

14 EMP Project Plan Threat Characterization Identify and assess mitigation and hardening approaches that can be employed to reduce effects of HEMP Identify potential unintended consequences of mitigation and hardening approaches Member and Stakeholder Communication Develop approaches for mitigating/hardening substation equipment against effects of HEMP Develop enhanced recovery procedures/plans/capabilities EMP Vulnerability Trial Implementation Decision Support Impacts Mitigation, Hardening & Recovery 14

15 EMP Project Plan Threat Characterization Develop a framework for assessing relative benefits of mitigation approaches Develop decision support tool(s) Member and Stakeholder Communication EMP Vulnerability Trial Implementation Decision Support Impacts Mitigation, Hardening & Recovery 15

16 EMP Project Plan Threat Characterization Share effectiveness of HEMP mitigation methods/implementations including: Current practices Options identified in this project Member and Stakeholder Communication EMP Vulnerability Trial Implementation Decision Support Impacts Mitigation, Hardening & Recovery 16

17 EMP Project Plan Threat Characterization Annual conference and webcasts Executive level communications Technical reports Member and Stakeholder Communication EMP Vulnerability Trial Implementation Decision Support Impacts Mitigation, Hardening & Recovery 17

18 Together Shaping the Future of Electricity Contact Information: Richard Lordan, PE Sr. Technical Executive Deana Dennis Senior Manager, External Relations 18