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© 2015 Electric Power Research Institute, Inc. All rights reserved.
Day TwoNovember 17, 2016
IWC Meeting Presentations
Restricted © Siemens AG 2016 siemens.com
EV Infrastructure: Advanced Grid IntegrationChris KingGlobal Chief Regulatory Officer, Siemens Digital Grid
Lessons learned from AMI rollouts and Demand Response
unrestricted © Siemens AG 20162016-11-09Page 2 Chris King
Disruptive trend from topology-based to transaction-based Business Models – the dramatic shift in perspective
Customer-centric transactional gridTraditional top down topologies
CustomerServices
unrestricted © Siemens AG 20162016-11-09Page 3 Chris King
How we operated the low voltage grid – and what it means
1. Top-down approachMeasuring follows the principle of the unidirectional grid: Generation > Transmission > Distribution
2. Low granularityMeasurements mostly at the high and medium voltage level. Low voltage distribution mostly un-metered
3. Mostly manualManual inspections (“truck rolls”) are often, the only way to identify failure
4. ReactiveInvestigation is done only when anomalies are detected.
unrestricted © Siemens AG 20162016-11-09Page 4 Chris King
What is possible now with AMI
1. Bi-DirectionalTaking distributed generation as well as new consumer patterns such as Electric Vehicles into consideration
2. GranularUsing the available sources of AMI data (usage, demand, voltage, events, generation) efficiently to generate a detailed and granular picture of the grid and its status
3. IntelligentLeveraging latest analytics intelligence and machine learning to make use of the data
4. ProactiveContinuously monitor the grid and its components to prevent problems
unrestricted © Siemens AG 20162016-11-09Page 5 Chris King
Data-driven Grid Operation is the future – how do EVs fit in?
Managing Meter Data
Managing Distributed Assets
Using Data to improve Grid Operations
unrestricted © Siemens AG 20162016-11-09Page 6 Chris King
Reality:We see a detachment grid operations / EV operations on utility side
Syst
em o
f In
nova
tion
Syst
em o
f D
iffer
entia
tion
Syst
em o
f R
efer
ence
SCADA AppsPlatform
MDMDEMS
Device Operations
Smart Communications
Grid Operation EV Operation
EV Operations
DRMS
????
Device Operations
Smart Communications
Outage Event Management
Equipment Load Monitoring
EV
Load Forecasting
Power Quality DRMS
???
Remote ConnectDisconnect
Meter Operations
Management
unrestricted © Siemens AG 20162016-11-09Page 7 Chris King
conservation &efficiency goals
renewables goals
price & market stability goals
system stability &reliability goals
TOU &
Hourly Pricing
Day-AheadCPP and PTR
Price-responsiveLoad
(PCTs, Day-of)
Direct Load Control
Home Energy Management Systems
Connect/Disconnect
Usage InformationServices
Smart thermostats
DistributedGeneration
NetMetering PHEV
ThermalStorage
Learnings from AMI rollouts: A Multi-Applications Landscape
unrestricted © Siemens AG 20162016-11-09Page 8 Chris King
Learnings from AMI rollouts: AMI Data Chasm
With SmartReal-time data filesActual, timely data used in Smart Grid operationsMeter data daily or more oftenTime-varying pricing optionsCustomer engagement through online data and appliance controls
Before SmartBatch filesForecasts and models using static dataPoint of sale data once a monthFlat, average pricesCustomer communications on monthly/quarterly bill
unrestricted © Siemens AG 20162016-11-09Page 9 Chris King
Learnings from AMI rollouts: Data Issues
A. From equipment• Devices
• Failures • Misprogrammed parameters
• Communications• Poor • Intermittent
B. From business processes• Mismatches
• Meter to premise, module to meter, premise to customer, etc.
• Arise during change events• Meter installation, customer moves, etc.
• Provisioning• Set-up of initial data relationships from
meter to bill• Synchronization
• Maintain same assumptions across interconnected systems over time• Data relationships, type of data, delivery
schedule, etc.
unrestricted © Siemens AG 20162016-11-09Page 10 Chris King
Learnings from AMI rollouts: AMI Data and Integration and Benefits Roadmap
Begin with Meter to Cash functions
Add AMI Business Process Management• Provisioning• Exception handling• Aggregation and virtual metering• Communications and control
Add analytics and reporting• Smart meter performance and trends• Usage anomalies• Meter and data problems and issues
Now, integrate with the enterprise and external applications• Real-time standards based • Flexible• Distribution of data
Source: Frost & Sullivan
unrestricted © Siemens AG 20162016-11-09Page 11 Chris King
Learnings from AMI rollouts: The Perils of a Short-Term Focus
Connect/disconnectDemand response eventOutage alarmPHEV charging control
Meter to cashMeter provisioningMeter activationMeter error
AMI Headend
M2C
MDMBilling
Bit bucket
CIS
WMS ERP
DRM
Web
Portal
Notification
System
OMS
EVMS
unrestricted © Siemens AG 20162016-11-09Page 12 Chris King
The Grid Evolution from Uni-directional and Top-Down to Bi-directional and Distributed triggers two major goals
2 Supply-side Management
Dynamic management of generation for participation in traditional marketsCoordinating groups of DERs into Virtual
Power Plants that can be managed together with a commercialization goal
“How can we bundle distributed Generation and optimize it?”
1 Demand-side Management
Traditionally Event -based management of Demand and Generation with distributed Grid Assets Load balancing / grid stability as
overarching goal
“How can we manage loads and ensure grid reliability with distributed grid assets?”
unrestricted © Siemens AG 20162016-11-09Page 13 Chris King
Integrating DER as a reliable resource
Coal Fired
System Operator
$Power
Purchases Wind Nuclear Hydro Gas Fired
Fast-ActingDER
Peak ShiftingDER
DEMS
LocalizedVPPs
Smart Distribution Grid
unrestricted © Siemens AG 20162016-11-09Page 14 Chris King
Where We Are Heading: Deeper Integration of EV as a Grid Asset / DER
Next 2-3 years
Integrated EV Charger meter to cash
Integrated Demand Response
Integrated Grid Operations
unrestricted © Siemens AG 20162016-11-09Page 15 Chris King
Where We Are Heading: EV LearningGrid Balanced EV Pricing Options
Charge Now
I Might Need to Drive Tonight
Wait Till Midnight
Max Saver
$3.10 $1.75
$2.25 $0.80
unrestricted © Siemens AG 20162016-11-09Page 16 Chris King
Based on Program Goals Our Customers Have Many Different Forms of “Control”
UtilityIT System(s)
Aggregation Point
EV
EV
EV
EV
EV
EV
OCPP
Direct operation, various protocols
VEN
EVEVEV
Site / User Mgt
EV
OpenADR
EVSE Specific Meter Price Signal
unrestricted © Siemens AG 20162016-11-09Page 17 Chris King
Nanogrid Complements DERMS PlatformsOptimizing Behind the Meter Assets with HW + SW Offering
Cloud
DRMS/DERMS(Demand reduction, demand increase, voltage regulation, or other request)
Macro Level Data(Pricing, demand, load forecasts, weather)
Rules, schedules,commands, prices
Inverter
Charger
Gateway
Battery
Inverter
Charger
Gateway
Battery
Inverter
Charger
Gateway
Battery
Local Events(Demand, reliability,power quality)
Other(fuel cell, diesel, etc.)
Solar
EV
Home energy mgmt. / smart devices
Other storage
+
-
NB Power Today(Resolving & Executing Utility Scale Need)
Where Nanogrid System Can Help(Rapidly resolving / managing local assets)
(Local variation)
unrestricted © Siemens AG 20162016-11-09Page 18 Chris King
Nanogrid Storage SolutionOffering Six Powerful Benefits Serving Two Customers at Once
Site Owner / Resident Utility / AggregatorSelf Consumption
Backup Power SupplySafety Independance
EmotionAwareness Control Green
Frequency response
PV firming / Voltage support
Analytics
T0 T1 T2
unrestricted © Siemens AG 20162016-11-09Page 19 Chris King
The EV infrastructure is a valuable asset for the Utility backoffice processes - if properly integrated
Meter to cash
Demand Response
Grid Operations
Advanced Analytics Solutions can integrate charging signatures into Load Forecasting and other applications to enhance granularity for Grid Operations
DR Solutions use OpenADRand OCPP to send and receive DR Signals to/from charging stations
EV chargers are metered and can be integrated with Meter Data Management and then billed
The
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A ho
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ateg
y
✓ ✓
unrestricted © Siemens AG 20162016-11-09Page 20 Chris King
Chris KingGlobal Chief Regulatory OfficerSmart Grid Services / USA
chris_king@siemens.com
Thank You!
© 2015 Electric Power Research Institute, Inc. All rights reserved.
John HalliwellTechnical Executive
Infrastructure Working CouncilNovember 15, 2016
SAE J1772™Status Update
2© 2015 Electric Power Research Institute, Inc. All rights reserved.
Contents
TimelineFace to Face Connector MeetingComment SummaryNext steps
3© 2015 Electric Power Research Institute, Inc. All rights reserved.
Version 7 - J1772™ Rough Timeline
Comment Period Closed
StartOpen for
New Comments
Resolve Comments
Task Force Ballot
Review Results
Hybrid Committee
BallotFormatting Review
ResultsMotor Vehicle Council Ballot
Review Results Publish
12 Weeks 20 Weeks 2 Weeks 2 Weeks
4 Weeks 6 Weeks 4 Weeks 1 Week 1 Week
Mar 15, 2016
Jun 7, 2016
Oct 25, 2016
Nov 8, 2016
Nov 22, 2016
Dec 20, 2016
Jan 31, 2017
Mar 14, 2017
Mar 7, 2017
Mar 21, 2017
Nov 22, 2016
Version 6 – Published in February 2016
1 Week
Feb 7, 2017
4© 2015 Electric Power Research Institute, Inc. All rights reserved.
Day Long Face to Face Meeting on September 29, 2016
Meeting focused on connector commentsConsensus on Appendix H test procedure
– Draft on SAE J1772 work area– Draft text description of procedure also posted
Reviewed all comments related to alignment with IEC connector drawings – consensus is that SAE drawings are most up to date and do not need modificationEight (8) difficult comments were resolvedThree (3) issues related to dimensioning remain active
without resolution
5© 2015 Electric Power Research Institute, Inc. All rights reserved.
Appendix H – draft posted
6© 2015 Electric Power Research Institute, Inc. All rights reserved.
Sample - SAE versus IEC Connector Drawings
7© 2015 Electric Power Research Institute, Inc. All rights reserved.
68 Comments on Tracking List
Coupler– Mechanical (dimensional issues)– Testing Protocol (RESOLVED)– Capacity (Voltage and Current)
Charge Session SequencePilot Wire and Proximity Wire Issues (voltage, tolerance,
PWM)Editorial Comments (word usage)
Harmonization –– IEC/ISO: sequence, pilot, prox, editorial, control, etc– Connector issues (RESOLVED)
8© 2015 Electric Power Research Institute, Inc. All rights reserved.
Next Steps
Schedule Face to Face meeting for remaining commentsResolve remaining comments (or decide to table them for
next version of J1772(Meetings specific to category topics13 comments resolved (54 remain); 1 new comment
9© 2015 Electric Power Research Institute, Inc. All rights reserved.
Together…Shaping the Future of Electricity
IEC STANDARDS FOR EV CHARGING
EPRI IWCNovember 17, 2016
Gregory C. Nieminski, LLCsilvergregn@verizon.net
IEC Project Stages and Timetable for Standards Development
Project Stage Associated Document Name AbbreviationMinimum Timeline(for comment and/or voting)
Proposal stage New Work Item Proposal NWIP 3 months for voting
Preparatory stage Working draft WD 12 months recommended
Committee stage Committee draft CD 2-4 months for comment
Enquiry stage Enquiry draftIEC/CDVISO/DIS
5 months for translation (2), comment and voting (3)
Approval stage Final Draft International Standard FDIS 2 months for voting
Publication stage International Standard IEC or ISO/IEC 1.5 -2 months
IEC TC69 Charging Station (EVSE) Standards
IEC EditionStage
NWIP Working Draft CD Next
CD (CD#) CDV FDIS Publication
61851-1 3 2016-10 2017-03
61851-21-1 1 2012-07 2016-12 2017-03
61851-21-2 1 2012-07 (3rd) 2015-11 2016-12 2017-12
61851-22 1 To be withdrawn – Consolidated into 61851-1
61851-23, 61851-24 2 MT5 (3rd) 2016-01 2016-07 (2nd) 2017-01 2017-06 2017-12 2018-04
61851-3-1, -2 1 2013-01 (5nd) 2016-09 Committee & Scope change TS 2017 ?
61851-3-3, -4, -5, -6, -7 1 2013-01 2016-02 (3nd) 2016-11 TS 2017
Projects:Key: In Publications Published New Status Change
IEC 61851-1, 3rd EditionFDIS Issued 08-26-2016. Accepted 10-07-2016Publication: March/April 2017Further Actions: WG4 disbanded, replaced by new Maintenance Team New Convenor to be selected Editorial Documents to be prepared Vocabulary for 61851 series (All) Scopes of 61851 Standards defined (presently
overlapping), Ad Hoc to be formed – Technical Report (TR) to define. Technical Issues to be resolved in 1st Amendment
IEC 61851-23 & 61851-24, 2rd Edition1st Committee Draft (69/461/CD) & (69/460/CD) issued 10/07/2016, comments due 12/30/2016Next meeting: week of Feb. 27, 2017, Delft, NetherlandsIssues & New Items:• Organization of Standard to follow 61851-1, 3rd edition• Overcurrent & Short Circuit protection• Bi-directional power flow – now included• High Power Charging – Preliminary discussions under MT5-6 continue:
ꟷ Definitions, ꟷ Usage at high power with monitoringꟷ DC Charging stations, coolingꟷ Standardization needs with other TCsꟷ Include in CD for 61851-23, 2nd edition (now or later?)
• New PT 61851-23-1 DC Charging with an automated connection system, – Mr. Wil Van Gils (Netherlands) Convenor
Issues:• Scopes overlap other parts of 61851. • Voltage and current ranges for DC charging overlap Part
23• AC output ratings not used (now includes 480VAC, 3Ø)• Differences in construction not defined to distinguish from
Part 1 or Part 23. • May be of double/reinforced insulated construction• Output may be at Safety Low Voltage level (≤ 60VDC)
At TC69 Plenary (Oct. 2016) decided to disband JPT61851-3 & establish new WG6 with call for convenor, decisions on Scope.
IEC 61851-3 series, 1st Edition
IEC 61980 series Wireless ChargingIEC Edition
Stage
NWIP Working Draft CD NEXT
CD (CD#) CDV FDIS Publication
61980-1 1 Published 2015-08
61980-2 1 2012-12 2013-08 2015-08 (3rd) 2016-04 2016-04* 2017-04
61980-3 1 2012-12 2013-08 2015-08 2016-04* 2017-03
• 61980-1: Electric vehicle wireless power transfer systems (WPT) - Part 1: General requirements
• 61980-2: Electric vehicle wireless power transfer (WPT) systems - Part 2 specific requirements for communication between electric road vehicle (EV) and infrastructure with respect to wireless power transfer (WPT) systems
• 61980-3: Electric vehicle wireless power transfer (WPT) systems - Part 3 specific requirements for the magnetic field power transfer systems.
* At TC69 Plenary (Oct. 2016) decided to disband JPT61980 & establish new WG7 with call for convenor, decisions on structure.
ISO 15118 series - Vehicle To Grid Communications Interface
ISO EditionStage
NWIP Working Draft CD NEXT
CD (CD#) CDV FDIS Publication
15118-1 2 (2nd Edition) 2016-08 (2nd) 2016-11
15118-2 2 (2nd Edition) 2016-04
2016-12 2018-04
15118-3 Publ.
15118-4 1 2016-01 (3rd) 2016-06 2016-11 2017-05 2017-12
15118-5 1 (2nd) 2015-03 2016-06 2016-12 2017-08
15118-6 1 (2nd) 2015-09 2016-05 2016-10
15118-7 1 (2nd) 2016-01 2016-12 2017-07
15118-8 1 (2nd) 2015-09 2016-04 2017-07
ISO 15118 series• ISO 15118-1: Road vehicles - Vehicle to grid communication interface - Part 1:
General information and use-case definition• ISO 15118-2: Road vehicles – Vehicle to Grid communication Interface - Part 2:
Technical protocol description and Open Systems Interconnections (OSI) layer requirements
• ISO 15118-3: Road Vehicles - Vehicle to grid communication interface - Part 3: Physical layer and Data Link layer requirements
• ISO 15118-4 Ed.1: Road vehicles — Vehicle to grid communication interface —Part 4: Network and application protocol conformance test
• ISO 15118-5 Ed.1: Road vehicles - Vehicle to grid communication interface - Part 5: Physical and data link layer conformance test
• ISO 15118-6 Ed. 1.0: Road vehicles - Vehicle to grid communication interface -Part 6: General information and use-case definition for wireless communication
• ISO 15118-7 Ed. 1.0: Road vehicles - Vehicle to grid communication interface -Part 7: Network and application protocol requirements for wireless communication
• ISO 15118-8 Ed. 1.0: Road vehicles - Vehicle to grid communication interface -Part 8: Physical layer and data link layer requirements for wireless communication
IEC SC23H Standards EV CouplersIEC Edition
Stage
NWIP Working Draft CD NEXT
CD (CD#) CDV FDIS Publication
62196-1, 62196-3
Amendment 3 2017-01 2018
62196-2 2 Published 2016-02
62196-4 1 2013-07 2014-07 2015-03 (3nd) 2016-08 2016-12 2017-12
New Items• Proposed New Tests to address EV Coupler Overheating
Issues (Thermal Cycling, Humidity/Mixed Gas Exposure, Misalignment, Termination & Contact Stability, No Load Endurance with Salt/Sand Exposure) – On-going
• Increased DC ratings (1000 VDC, 400 A)• Cooled DC High Power Charging System, 400kW
Proposal by Germany
IEC SC23H (Non-Road) Standards (Shore to Ship Connectors)
IEC Edition
Stage
NWIP Working Draft CD NEXT
CD (CD#) CDV FDIS Publication
60309-5 1 2014-08 2016-04 2016-11 2017-05
IEC 60309-5 (new Standard number to be assigned)Plugs, socket-outlets and couplers for industrial purposes –Part 5: Dimensional compatibility and interchangeability requirements for plugs, socket-outlets, ship connectors and ship inlets for low-voltage shore connection systems (LVSC) –690VAC, 350 A, 3Ø
2017 NFPA 70: National Electrical Code1. 2017 NEC available on NFPA site, Codes & Standards page:
ꟷ under Current & Prior Editions tab (select 2017 edition to display)ꟷ under View the document online (Free Access), select Free access to the 2017 edition online, then select “625” in Table of Contents.
2. Under Next Edition Tab, Additional Committee Information, TIA Ballot:ꟷ National Electrical Code® Correlating Committee (NEC‐AAC) andCode‐Making Panel 12(NEC‐P12), open files and read both (for details):• Ballot, TIA No. 1242• Ballot Preliminary Results, TIA No. 1242• Ballot Final Results, TIA No. 1242
This will provide details for 2017 NEC and TIA No. 1242 for Article 625.
11/16/2016
Article 625 625.17 Cord and Cables
Text(A) Power Supply Cord & (B) Output Cable to the Electric Vehicle
11/16/2016
Article 625 625.17 Cord and Cables 625.44 Equipment Connection
Text (continued)(C) Overall Cord and Cable Length
625.44(A) Portable Equipment(B) Stationary Equipment(C) Fixed Equipment
11/16/2016
SAE INTERNATIONAL
Copyright © SAE International. Further use or distribution is not permitted without permission from SAE
EPRI IWC SAE J2894 UPDATE
Eloi Taha – NissanRichard Hodson - SCE17.11.2016
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
AGENDA• J2894 Documents and Current Status• J2894/1 Table of Contents and Scope• J2894 Task Force Active members• Proposed changes being reviewed• Published/Proposed Efficiency and Current THD Requirements• Published/Proposed AC Service Requirements• INL Voltage Sag Test Results• Load Rate Soft Start (Issue we need help with)
EPRI IWC SAE J2894 UPDATE 2
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
• J2894/2 Power Quality Test Procedures for Plug-In Electric Vehicle Chargers– Document has been published (March 1, 2015)– Document to re-open when J2894/1 is complete
• J2894/1 Power Requirements for Plug-In Electric Vehicle Chargers– Document was published (Dec. 1, 2011)– Document was re-opened in 2015– Document is under development– Document Sponsor: Eloi Taha (Nissan)– Co-Chair: Richard Hodson (SCE)
EPRI IWC SAE J2894 UPDATE 3
J2894 Documents and Current Status
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
J2894/1 Table of Contents and Scope
TABLE OF CONTENTS
1. SCOPE2. REFERENCES2.1 Applicable Documents3. DEFINITIONS4. CHARGER POWER QUALITY PARAMETERS4.1 Displacement Power Factor4.2 4.2 Power Conversion Efficiency4.3 4.3 Total Harmonic Current Distortion4.4 4.4 Current Distortion at Each Harmonic Frequency4.5 Inrush Current5. CHARACTERISTICS OF THE AC SERVICE5.1 Voltage Range5.2 Voltage Swell5.3 Voltage Surge5.4 Voltage Sag5.5 Voltage Distortion5.6 Momentary Outage5.7 Frequency Variation5.8 Portable (Self) Generation / Distributed Energy Resources6. CHARGING CONTROL6.1 Utility Messaging6.2 Communication6.3 Cold Load Pickup6.4 Load Rate (Soft Start)
Title: Power Quality Requirements for Plug-In Electric ChargersScopeThe intent of this document is to develop a recommended practice for PEV chargers, whether on-board or off-board the vehicle, that will enable equipment manufacturers, vehicle manufacturers, electric utilities and others to make reasonable design decisions regarding power quality. The three main purposes are as follows:
1.To identify those parameters of PEV battery charger that must be controlled in order to preserve the quality of the AC service.2.To identify those characteristics of the AC service that may significantly impact the performance of the charger.3.To identify values for power quality, susceptibility and power control parameters which are based on current U.S. and international standards. These values should be technically feasible and cost effective to implement into PEV battery chargers.
EPRI IWC SAE J2894 UPDATE 4
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
J2894 Task Force Active Members / Plan
Plan• The J2894 Task Force needs more active participation• Planning to be ready for ballot the by the end of 2017 1Q
Active Members
EPRI IWC SAE J2894 UPDATE 5
Ford FCA Daimler Nissan
SCE INL ANL
Yazaki ChargePoint Clipper Creek
PEV OEMs EVSE Suppliers Utility National Labs
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
# COMMENTS Proposed change
1
Correct (what seems to be) a typo. Change the sentence below.
The recommended minimum values for displacement power factor are defined in Table 1 below. These values are specified for operation at the full rated output power of the charger.
2
Total Harmonic Current Distortion (10%)Harmonize with IWC ROC (1998) requirement: 20%.Current vehicles may not meet the requirement, prefer to avoid any specification change unless there is a rational reason for it. Revert to older requirement
3
Inrush CurrentClarify and harmonize with ISO 17409 requirements.Events and the limit values for each event should be defined. Align with ISO
EPRI IWC SAE J2894 UPDATE 6
Proposed changes being reviewed
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
# COMMENTS Proposed change
4
Voltage Swell (175%)Moderate the requirement to 125%.Current vehicles may not meet the requirement, prefer to avoid any over performance unless there isa rational reason for it. Use the 125% level for 3 sec
5Voltage Surge (6kV min.)Harmonize with ECE R10/IEC requirement.Current vehicles may not meet the requirement, prefer to avoid any over performance unless there is a rational reason for it.
Remove current requirements insert the following: L-L 1kV minL-N 2kV min6kV maximumnumber of applied charges:5wait time: 60sIEC 61000-4-5
6 Add Transient Cap switching test to the Grid tests Add Transient Cap switching test to the Grid tests
7Impedance needed for Surge Test
ensure alignment between /1 &/2 WRT ANSI and IEC Revise Requirement
8 Swell test should include additional longer times Revise Requirement
EPRI IWC SAE J2894 UPDATE 7
Proposed changes being reviewed (con’d)
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
# COMMENTS Proposed change
9Revise the table to add THD requirements for multiple
levels (most likely the standard circuit current rating) Table shown later
10Clarify responsibility for cold load start time delay and
ramp rate
EVSE - time delay
Vehicle - Ramp Rate
11Revise the table to add PCE requirements for multiple
levels (most likely the standard circuit current rating) Table shown later
12Additional requirements based around bulk power
support
Additional requirements based around bulk power
support
13Define responsibe party for each requirement if not
clear
Define responsible party for each requirement if not
clear
14 Add definition for PEV Add definition for PEV
EPRI IWC SAE J2894 UPDATE 8
Proposed changes being reviewed (con’d)
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
# COMMENTS Proposed change
15 Change cold load pickup
Adjust Ramp Rate
use random delay instead of ramp rate
16Add Efficiency requirements (excluding wireless
charging) Add Requirement
EPRI IWC SAE J2894 UPDATE 9
Proposed changes being reviewed (con’d)
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
Current Power Conversion Efficiency & Current THD Requirements
• These requirements were defined at Maximum Power only• New proposed requirements will be more specific• Proposed changes moving from a Maximum Power only requirement to a full
spectrum requirement
EPRI IWC SAE J2894 UPDATE 10
Recommended Full Power Conversion Efficiency AC Level 1 AC Level 2 DC
90% 90% 90%
Table 2 - Minimum recommended guidelines for full power conversion efficiency
Recommended Maximum Total Harmonic Current Distortion
AC Level 1 AC Level 2 DC
10% 10% 10%
Table 3 - Recommended limits for total harmonic current distortion
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
EPRI IWC SAE J2894 UPDATE 11
Proposed Power Conversion Efficiency Requirements
Level 2 Recommended Min EfficiencyCharge Rate
Charger Size
Current (A) < 6 (6-8) (8-10) (10-12) (12-16) (16-24) (24-32) (32-48) (48-64) (64-80)
Charge Rate (kW) < 1.4 (1.4-1.9) (1.9-2.4) (2.4-2.9) (2.9-3.8) (3.8-5.8) (5.8-7.7) (7.7-11.5)
(11.5-15.4)
(15.4-19.2)
< 10 < 2.4 80% 85% 90% N/A N/A N/A N/A N/A N/A N/A(10-16) (2.4-3.8) 80% 85% 85% 90% 90% N/A N/A N/A N/A N/A(16-24) (3.8-5.8) 80% 85% 85% 87% 90% 90% N/A N/A N/A N/A(24-32) (5.8-7.7) 80% 85% 85% 87% 90% 90% 90% N/A N/A N/A(32-48) (7.7-11.5) 80% 85% 85% 87% 87% 90% 90% 90% N/A N/A
(48-64) (11.5-15.4) 80% 85% 85% 87% 87% 87% 90% 90% 90% N/A
(64-80)(15.4-19.2) 80% 85% 85% 87% 87% 87% 87% 90% 90% 90%
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
EPRI IWC SAE J2894 UPDATE 12
Proposed Power Current THD Requirements
Level 2 Recommended Current Max THD Charge Rate
Charger Size
Current (A) < 6 (6-8) (8-10) (10-12) (12-16) (16-24) (24-32) (32-48) (48-64) (64-80)
Charge Rate (kW) < 1.4 (1.4-1.9) (1.9-2.4) (2.4-2.9) (2.9-3.8) (3.8-5.8) (5.8-7.7) (7.7-11.5)
(11.5-15.4)
(15.4-19.2)
< 10 < 2. 12% 10% 8% N/A N/A N/A N/A N/A N/A N/A(10-16) (2.4-3.8) 15% 12% 10% 8% 6% N/A N/A N/A N/A N/A(16-24) (3.8-5.8) 18% 18% 15% 10% 8% 6% N/A N/A N/A N/A(24-32) (5.8-7.7) 18% 18% 15% 12% 10% 8% 6% N/A N/A N/A(32-48) (7.7-11.5) 18% 18% 15% 12% 10% 9% 7% 5% N/A N/A(48-64) (11.5-15.4) 18% 18% 15% 12% 9% 8% 7% 6% 5% N/A(64-80) (15.4-19.2) 18% 18% 15% 12% 10% 9% 8% 7% 6% 5%
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
Parameter AC Level 1 AC Level 2Voltage Range 90% - 110% of nominal 90% - 110% of nominal
Voltage Swell 175% of nominal forMin. ½ cycle (8 ms)
175% of nominal forMin. ½ cycle (8 ms)
Voltage Surge 6 kV minimumANSI C62.41 & C62.45
6 kV minimumANSI C62.41 & C62.45
Voltage Sag Down to 80% of nominalfor 2 s
Down to 80% of nominalfor 2 s
Voltage Distortion 5% 5%Momentary Outage 0 volts for 12 cycles 0 volts for 12 cycles
Frequency Variations 2% of nominal 2% of nominal
EPRI IWC SAE J2894 UPDATE 13
Published AC Service Limits
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
Parameter AC Level 1 AC Level 2
Voltage Swell 175% of nominal forMin. ½ cycle (8 ms)
175% of nominal forMin. ½ cycle (8 ms)
175% of nominal forMin. ½ cycle (8 ms)
175% of nominal forMin. ½ cycle (8 ms)
125% of nominal forMin. 3 s
125% of nominal forMin. 3 s
Voltage Surge 6 kV minimumANSI C62.41 & C62.45
6 kV minimumANSI C62.41 & C62.45
Line(s) to line(s) 1kV minimumIEC 61000-4-5
1kV minimumIEC 61000-4-5
Line(s) to ground1kV minimum, 6kV maximumIEC 61000-4-5
1kV minimum, 6kV maximumIEC 61000-4-5
Number of applied charges 5 5Wait time 60 s 60 s
EPRI IWC SAE J2894 UPDATE 14
Proposed AC Service Limits Changes (Under Discussions)
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
NERC Proposal on PEV Bulk Load Power
PEVs as Bulk Load Electric vehicles are expected to become a sizeable
component to end-use load composition Large-scale deployment of Electric Vehicles should “Do No
Harm” to reliability of the bulk power system Early involvement can lead to “grid-friendly” response of EVPEV Load PerformanceConstant impedance load is inherently “grid-friendly”Power reduces as voltage reducesConstant power load is inherently “grid-harmful” during low voltage conditions (faults)Rising current for low voltageConstant current “grid-friendly” during normal operation, marginal during abnormal conditions
EPRI IWC SAE J2894 UPDATE 15
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
INL Voltage Sag Test Results
Ideal Response• Current changes proportionally
with the voltage.– When voltage is reduced
current is also reduced.– When voltage is restored the
current is restored to pre-disturbance value.
EPRI IWC SAE J2894 UPDATE 16
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
INL Voltage Sag Test Results
Actual Response• The current increases during the voltage sag for PEV-A and PEV-B.
– May increase likelihood of Fault Induced Delayed Voltage Recovery (FIDVR).
– Works against voltage recovery.• The vehicle charging was interrupted
– PEV-A (0.2 s), PEV-C (~10 s)• Interruption of a large segment of load
may cause problems:– Feeder over-voltages after the sag– load/gen unbalance (frequency
regulation problems).EPRI IWC SAE J2894 UPDATE 17
SAE INTERNATIONALCopyright © SAE International. Further use or distribution is not permitted without permission from SAE
Soft Start Load Rate (Current Issue we need Help with)
Requirement:After a momentary power outage, when the power is recovered: 1. PEV must wait for 2 minutes before drawing power 2. The load ramp rate must be 1A/sProposals:1. Change the requirement to be 10A/s2. Apply the requirement to EVSEs, instead to PEVs3. Revert to the previous version of the requirement
(2 minute delay + randomized timer) for EVSEs4. Limit startup to _?_A/s and no faster 1 sec
EPRI IWC SAE J2894 UPDATE 18
Volta
ge (V
)
Time
Cur
rent
(A)
Time
OUTAGE
2 Min. Delay
(Minimum)
Ramp Rate (1A / Sec.)
Copyright © SAE International. Further use or distribution is not permitted without permission from SAE
QUESTIONSPlease contact Pat Ebejer at SAE to participate in the Task ForcePatricia.Ebejer@sae.orgOr J2894 Task Force Co-chairs richard.hodson@sce.comAnd eloi.taha@Nissan-usa.com
EPRI IWC SAE J2894 UPDATE 19
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US DOE – US DOT Corridor and Community DC Fast Charging Complex
Bob GrahamJim Francfort Tom Garetson
November 2016Infrastructure Working CouncilSan Francisco, California INL/MIS-16-40494
• This presentation is intended to introduce the concept of a Community and Corridor Fast Charging Complex- And, to solicit input from EV industry experts to supplement
the lessons we’ve learned from vehicle and infrastructure studies
• This input will help refine the charging complex criteria and rough order of magnitude (ROM) costs - Must support today’s and tomorrow’s plug-in electric
vehicles and their with much larger traction battery packs
PURPOSE
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