Preparing for the Dynamic Grid of Future

Transcription

1 Preparing for the Dynamic Grid of Future Peter Hoffman, P.E. Duke Energy, Grid Solutions Engineering & Technology

2 POWERING LIVES & COMMUNITIES Environmental Stewardship Reliable Service Affordable Rates

3 LOOKING BACK POWERING LIVES & COMMUNITIES LOOKING FORWARD Population Growth Variable Energy Supply Dynamic Loads Security Threats Advanced Technology Customer Sensitivities Load Growth Aging Assets More Severe Weather

4 DYNAMIC GRID OF FUTURE Reliable IMPROVE RELIABILITY Service to avoid outages and speed restoration STRENGTHEN Environmental THE GRID against Stewardship physical and cyber impacts EXPAND SOLAR AND RENEWABLES across a two-way, smart-thinking grid Affordable Rates GIVE MORE OPTIONS AND CONTROL over energy use and tools to save money

5 DYNAMIC THE GRID OF FUTURE Energy Storage Smart Meters ADVANCED ADVANCED SYSTEMS COMM 10 YR PLAN Transmission Improvements Hardening & Resiliency Smart Thinking Grid Targeted Underground Electric Vehicle Charging

6 DYNAMIC THE GRID OF FUTURE TRANSMISSION & DISTRIBUTION SYSTEM IMPROVEMENTS Hardening & Resiliency of Substations and Lines Physical & Cyber Security System Intelligence Platforms Modified designs for extreme weather Pole, tower & line strengthening Uplift of obsolete equipment & infrastructure Physical security improvements for devices Eliminating security vulnerabilities Threat identification & analysis tools Advanced protection, detection & controls Advanced distribution management System risk & asset monitoring

7 Preparing for the Dynamic the Grid of Future Proofs of Concept Demonstration Projects Use Case Studies Joint Pilots Programs

8 DYNAMIC THE GRID OF FUTURE PROOF OF CONCEPT Proof of Concept Requirements Switchgear Automation System Limited-scale deployment of a technology solution which supported the development of business work processes change management training standardized design other required artifacts to evaluate the feasibility of implementing the technology 8

9 PROOF OF CONCEPT Switchgear Automation System DYNAMIC THE GRID OF FUTURE Underground Switchgear POC solution designed to: Respond on its own to isolate an event. Allow for multiple use cases. Overcome failure of primary systems. Isolate a fault and restore maximum number of customers 9

10 PROOF OF CONCEPT Switchgear Automation System DYNAMIC THE GRID OF FUTURE Telecom Design Fiber C Serial RELAY C Fiber Ethernet NETWORK ROUTER/ ACCESS POINT Fiber NETWORK SWITCH NETWORK SWITCH Fiber 10

11 PROOF OF CONCEPT Switchgear Automation System Vault Control Design 11

12 PROOF OF CONCEPT Switchgear Automation System Control Connected to Test Sets 12

13 PROOF OF CONCEPT Switchgear Automation System LESSONS LEARNED Communication is key Collaborating across multiple groups, companies countries and time zones requires higher-than-usual coordination Good communication and flexibility keeps team on track Small details can have big impacts Complex test configuration required high attention to detail Simplest of connection errors could result in incorrect results. Thorough FAT can save SAT time When factory testing, a little extra thought about site conditions (equipment orientation, foot traffic, etc.) can help mitigate some of time consuming onsite adjustments. 13

14 DYNAMIC THE GRID OF FUTURE USE CASE STUDY Proof of Concept Requirements Self Optimizing Grid for Distribution Connected DER Use of SOG investments, initially deployed to provide advanced distribution capabilities, to dynamically balance DER power produced The study evaluates how local DER production might help meet local demand effectiveness of SOG for rerouting DER produced power upstream for consumption capabilities for segment reconfiguration to route power to adjacent circuits and streets 14

15 USE CASE STUDY Self Optimizing Grid for Distribution Connected DER DYNAMIC THE GRID OF FUTURE Balancing Challenge ZERO DER PENETRATION: Lagrange Substation (NC) AUGUST 2013 Load curve for feeder with no DER One minute real & reactive power flow measured at distribution bus, 48 hour period Source: SME materials

16 USE CASE STUDY Self Optimizing Grid for Distribution Connected DER DYNAMIC THE GRID OF FUTURE Balancing Challenge HIGH DER PENETRATION: Lagrange Substation (NC) OCTOBER 2014 Imperfect solar day illustrates power quality challenges that scale DER can place on grid Power quality and ramping challenges that must be addressed With good solar conditions, ramping requirements and reactive power are key factors Source: SME materials 16

17 USE CASE STUDY Self Optimizing Grid for Distribution Connected DER Net Zero VAR Flow DYNAMIC THE GRID OF FUTURE Balancing Challenge DER Integration & Grid VAR Management Capability Distribution BUS B High speed VAR flow (pulses) B express express Power Quality (imperfect solar day) NEAR TERM SOLUTION DER integration means building express feeder Solution siphons off the resiliency designed in to address grid stability issues (e.g., loss of transmission-level unit)

18 USE CASE STUDY Self Optimizing Grid for Distribution Connected DER Net Zero VAR Flow DYNAMIC THE GRID OF FUTURE Balancing Challenge DER Integration & Grid VAR Management Capability Distribution BUS B High speed VAR flow (pulses) B express express Power Quality (imperfect solar day) NEAR FORWARD-LOOKING TERM SOLUTION SOLUTION MUST Express Solve capacity feeder challenge solved capacity and dynamically challenge respond not VAR to issues intermittency As Prepare private the solar distribution penetration grid grows, for momentary design can loss no of longer units sustain Preserve existing capabilities built for transmission support

19 USE CASE STUDY Self Optimizing Grid for Distribution Connected DER Net Zero VAR Flow Net Zero VAR Flow DYNAMIC THE GRID OF FUTURE Net Zero VAR Flow Net Zero VAR Flow Balancing Challenge DER Integration & Grid VAR Management Capability Net Zero VAR Flow Distribution BUS B High speed VAR flow (pulses) FUTURE: VAR capability moved further out onto line circuit USE CASE: SOG FOR DER INTEGRATION Solves capacity challenges and dynamically respond to intermittency Prepares the distribution grid for momentary loss of units Preserves existing capabilities built for transmission support USE CASE ELEMENTS EXPLORED Dynamic open points Distributed Intelligence Connections to dynamic reserve Implications for protection and controls Implications for data models Criticality of data accuracy & quality

20 USE CASE STUDY Self Optimizing Grid for Distribution Connected DER FINDINGS Can alleviate localized issues The high-speed voltage/var mgmt capabilities of SOG are able to dynamically smooth localized DER-driven PQ and stress point issues Supports long duration outage locations Leverages stand alone energy storage or solar plus storage for long duration outage locations (more cost effective than non-wires approach) Additional use cases grow SOG s stacked value SOG and storage assets additionally contribute to helping keep carbon free baseload units on line for highly penetrated system 20

21 POWERING LIVES & COMMUNITIES ENSURE MAINTAIN PROTECT Reliable Service Affordable Rates Environmental Stewardship Building a Smarter Energy Future

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