iwc meeting presentations two... · 2017-04-10 · iec 61851-23 & 61851-24, 2rdedition 1st...

© 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


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.


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


Data-driven Grid Operation is the future – how do EVs fit in?

Managing Meter Data

Managing Distributed Assets

Using Data to improve Grid Operations


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


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


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


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.


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


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


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?”


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


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


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


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


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)


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


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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king

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A ho

listic

str

ateg

y

✓ ✓


Chris KingGlobal Chief Regulatory OfficerSmart Grid Services / USA

[email protected]

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


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


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


Appendix H – draft posted


Sample - SAE versus IEC Connector Drawings


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)


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


Together…Shaping the Future of Electricity

IEC STANDARDS FOR EV CHARGING

EPRI IWCNovember 17, 2016

Gregory C. Nieminski, [email protected]

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


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



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



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



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


• 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)


J2894 Documents and Current Status


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.



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


Ford FCA Daimler Nissan

SCE INL ANL

Yazaki ChargePoint Clipper Creek

PEV OEMs EVSE Suppliers Utility National Labs


# 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


Proposed changes being reviewed



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


Proposed changes being reviewed (con’d)



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





15 Change cold load pickup

Adjust Ramp Rate

use random delay instead of ramp rate

16Add Efficiency requirements (excluding wireless

charging) Add Requirement




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


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



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%



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%


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


Published AC Service Limits


Parameter AC Level 1 AC Level 2

Voltage Swell 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


Proposed AC Service Limits Changes (Under Discussions)


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



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.



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


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


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 [email protected] J2894 Task Force Co-chairs [email protected] [email protected]


ww

w.in

l.gov

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