TEPCO’s “Smart Grid” Initiatives - CSEE · IEEE 802.3 3GPP IEEE 802.3 Metering Part HEMS ......

1Copyright ©2014 Tokyo Electric Power Co., Inc. All Rights Reserved

TEPCO’s “Smart Grid”Initiatives

TEPCOTEPCO’’s s ““Smart GridSmart Grid””InitiativesInitiatives

Toshiro TakebeToshiro TakebeManaging Executive Officer / President of Power Grid CompanyManaging Executive Officer / President of Power Grid Company

September 23, 2014September 23, 2014


TEPCOTEPCO’’s Positions Position

12,073kmUG transmission line circuit length

1288kw/km2Demand density

64.3GW(July 2001)

50.9GW(Aug 2013)

TEPCO(FY2013)

28,247kmOH transmission line circuit length

45 millionPopulation in service area

39,542km2Service area

Peak demand


Progress of Market Progress of Market LiberalizationLiberalization

EHVEHV((≧≧22kV)22kV)

HVHV((≧≧6kV)6kV)

LVLV200V200V100V100V

March 2000March 2000 April 2004April 2004 April 2005April 2005 April 2016April 2016

【【26%26%】】

【【74%74%】】

【【40%40%】】

【【60%60%】】

【【60%60%】】

【【40%40%】】

【【100%100%】】

≧≧2000kW2000kW

≧≧500kW500kW

≧≧50kW50kW

Voltage Voltage CapacityCapacity

RegulatedRegulated

LiberalizedLiberalized


Holding Company System (2016Holding Company System (2016--))

Power Generation Operational Company

Power Generation Operational Company

Holding Company

Shared Services

Fukushima Daiichi D&DEngineering CompanyFukushima Daiichi D&DEngineering Company

Fukushima Headquarters

Nuclear Power StationsNuclear Power Stations CompensationCompensation

Reconstruction SupportReconstruction SupportManagement SupportManagement Support

Transmission and distribution operational company

Transmission and distribution operational company

Retail Sales operational company

Retail Sales operational company


Power Grid Company CommitmentsPower Grid Company Commitments

1. Comprehensive Cost Reduction for Transmission and Distribution while also providing stable supply

2. More advanced environment for network use

3. Expanding the scope of business using technological expertise


Overseas advancement / international contribution

System technology for greater introduction of RE

OverseasOverseas

WindWind

TransmissionTransmissionnetworknetwork

Organization for Promoting Organization for Promoting Nationwide CoordinationNationwide Coordination

Distribution Distribution networknetwork

Information and communication network

SolarSolar

HydroHydroNuclearNuclear

DC DC transmissiontransmission

SSSS

Next-generation monitor / control with ICT

Upgrading of network

Visualization of system characteristics

Upgrading voltage control

NationwideNationwidesystemsystem

60Hz60Hzareaarea

Control officeControl office

CoordinatedCoordinated

EVEVSmart meterSmart meter

Storage Storage batterybattery

Quick Quick charge EVcharge EV

ThermalThermal

CLDCCLDC

Expansion of inter-area power wheeling

50Hz50Hzareaarea Nationwide demand/

supply control

Dispersed Dispersed power sourcespower sources

LargeLarge--scale centralized scale centralized power sourcespower sources

TEPCOTEPCO’’s Intended Power Systems Intended Power System

Copyright ©2014 Tokyo Electric Power Co., Inc. All Rights Reserved

Smart GridSmart Gridon the supply sideon the supply side


Bulk Power Transmission SystemBulk Power Transmission System

Tokyo

500kV

500kV

275kV

1,000kV (UHV) Tower

(1,000 kV Design)


Tokyo Area NetworkTokyo Area Network500 kV Cable275 kV Overhead 275 kV cable


Utilization of underground space in Tokyo with environmental harmony

Effective Use of UndergroundEffective Use of Underground

275kV Underground Substation

500kV Underground Substation


Reliable Distribution LinesReliable Distribution Lines

Pole Transformer withPole Transformer withBuiltBuilt--in Arrester in Arrester

Insulated WireInsulated Wire

6kV Discharge Clamp 6kV Discharge Clamp Insulator Insulator


ArresterOverhead Grounding Wire

Air Switch with Built-in Arrester

6kV Discharge Clamp Insulator

Solid Type 6kV Tension Insulator

Pole Transformer with Built-in Arrester

Insulated Wire

Reliable Distribution LinesReliable Distribution Lines


Trends of SAIDI & SAIFITrends of SAIDI & SAIFI from 1960 to 2013from 1960 to 2013

Insulated WireLightning Protection Measures

Distribution Automation System

(FY)

0

0.5

1

1.5

2

2.5

1960

1965

1970

1975

1980

1985

1990

1995

2000

2005

2009

2010

2011

2012

2013

SAIFI（

times）

0

20

40

60

80

100

120

140

160

SAID

I（mi

n）

SAIFI SAIDI

Earthquake


:Communication line

★★ Remote setting Remote setting for control for control devicesdevices

東京電力

:Sensor built-in switch

Monitoring data

Measurement Data (V, I, θ etc)

＜＜Control OfficeControl Office＞＞DG

S/S

SVR, etc

Wind, PV

:Distribution Line

★★ Prompt system Prompt system impact study for impact study for interconnectioninterconnection

★★ Fault point Fault point detection by detection by monitoring V0, I0monitoring V0, I0

★★ Switching based Switching based on phase angle on phase angle measurementmeasurement

UpgradUpgrade ofe of Distribution SystemDistribution System

Sensor built-in switch

Speedy Deployment ofSpeedy Deployment ofSmart Meters Smart Meters


Installation ScheduleInstallation Schedule

Over 20kV Over 20kV SupplySupply

6kV Supply and6kV Supply andover 500kWover 500kW

27 million

3,000

6kV Supply and6kV Supply andbelow 500kWbelow 500kW

40%

40%Under 6kV Under 6kV SupplySupply

12,000

230,000 20%

Number of customers Ratio of Energy UseClassification Progress of Installation

・Finished

・will finish by 2016.

・have started to install from 2014 and will finish by 2020.


Communication System ConfigurationCommunication System ConfigurationA Combination of “Wireless Mesh”, “PLC” and “Cellular Network”

Wireless Mesh

PLC

HEMSMain Site

Fiber-opticNetwork

(Owned by TEPCO)

HE MDMS

MDMMAMNM

MobileTerminal

Maintenance Terminal

Route B Route A

FAN WAN

Repeater

SST, L3SW etc

MassHousing

HEMS

HEMS

Backup Site

HE

Concentrator

Fiber-opticNetwork

(Owned byCommunicationCarrier)

Cellular PhoneNetwork

BaseStation

Cellular network


Concept of Concept of ““Right Technology, Right PlaceRight Technology, Right Place””

Areas,Number of Smart Meters ratio

Wireless Mesh PLC(Power Line Communication) Cellular Network

Mesh created with meters with low cost. Suitable for relatively high-density areas.

Suitable for complex buildings where radio signals are likely to be blocked.

Cellular services such as 3G and LTE. Suitable for low density areas.

Concentrators

Smart MetersElectrical

Room

HV lineSubstation

Smart Meters

Cellular Base Station

1～9 10～29 30～59 60～99 100～［meters / 250m × 400m unit area］0

70% 10% 20%


・920MHz, wirelessIEEE802.15.4g/e（Wi-SUN）

・PLCITU-T G.9903（G3-PLC）

IPECHONET Lite

①Section ② ③ ④Data Format DLMS/COSEM DLMS/COSEM CIM/Legacy

Network Layer - IP IP

Transmission Medium

(PHY/MAC etc…)

Asynchronous Communication

FAN・Wireless Multi-Hop

IEEE802.15.4g/e・PLC

ITU-T G.9903WAN

IEEE 802.33GPP

IEEE 802.3

MeteringPart

HEMS

CommunicationPart

Smart Meter

MDMS② ③

①

③HS(Head end System)

Adoption of International StandardsAdoption of International Standards


Early Installation of Smart MetersEarly Installation of Smart Meters

Approx. 3.2Mcustomers/year

Approx. 3.3 ~ 5.7M

customers/year

OriginalPlan

AcceleratedPlan

3.2 M

Early Stage Acceleration Stage

5.7 M

3.3 M

(FY)

(FY)

Legal Replacement

New houses

Front loaded installation

Year of “Tokyo Olympics”


HEMSHEMSHEMS

EV

Safety confirmation Service etcSafety confirmation Service etc

Smart MeterSmart Meter

PVBattery

Visualization InformationVisualization Information

MDMSMDMS((Meter DataMeter DataManagementManagementSystemSystem))

TEPCOTEPCO(CSC)(CSC)

TEPCOTEPCO (PGC)(PGC)PPSPPS

AggregatorAggregator

Cell Phone/Internet

BigDataAnalysis

BigDataAnalysis

Company system

Possibility of new services utilizing Smart MetersPossibility of new services utilizing Smart MetersFunction

• Automatic Metering [kWh] [A] [V] • Remote Disconnect /Reconnect• Remote Demand Limit Change

FunctionFunction• Automatic Metering [kWh] [A] [V] • Remote Disconnect /Reconnect• Remote Demand Limit Change

Appliances

Energy Management ServicesEnergy Management Services

Advanced Community Information ServicesAdvanced Community Information Services

Advising on & Promotion

of Home Appliance Replacement

Advising on & Promotion

of Home Appliance Replacement

Demand ResponseDemand Response

Joint MeteringJoint Metering

Demand ResponseDemand Response

Variety of Rate menusVariety of Rate menus


DR Signal

Measured Data

kW

TimeTime

Yen／kWh

CPP (Critical Peak Pricing)CPP (Critical Peak Pricing) PTR (Peak Time Rebate)PTR (Peak Time Rebate)

kW

TimePeak Time

Research on Introducing Dynamic Pricing for Residential Customers

Peak Time Peak Time

HEMSHEMSIn-Home Displays

Smart Meter

Server

Customers are Provided a Rebate Customers are Provided a Rebate for Reductions in Consumptionfor Reductions in Consumption

Demand Response utilizing Smart Meters Demand Response utilizing Smart Meters

Integration of RENEWABLESsupported by Smart Grid

National Project


Renewable Generation Capacity in JapanRenewable Generation Capacity in Japan[GW]

Before FIT Before FIT (~2012.6)(~2012.6)

After FIT After FIT (2012.7~2014.3)(2012.7~2014.3)

About 16GWIn TEPCO’s Area

0

10

20

30

40

50

60

70

80

InstalledCapacity

InstalledCapacity

CertifiedCapacity

PV(residential)PV(non-residential)Wind PowerSmall HydroBiomassGeothermal


PV installations in TEPCOPV installations in TEPCO’’s areas area［number of spots］

x1000

(FY)(FY)

［capacity］［number of spots］

［MW］

3315

104 146 208 273 335 385 437 565787

1118

1692

518

401

299

218160

12410893755740270

500

1000

1500

2000

2500

3000

3500

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 20130

100

200

300

400

500

600

MW No. of Spots


■Voltage rise and Protection due to reverse power flow→Additional installation of pole transformers, or voltage regulators→Upgrading protection relays for reverse power flow

■Voltage rise and Protection due to reverse power flow→Additional installation of pole transformers, or voltage regulators→Upgrading protection relays for reverse power flow

Issues in Integration of LargeIssues in Integration of Large--scale scale Renewable EnergyRenewable Energy

■Overload of Transmission Facilities→Coordination mechanism for power network upgrading cost

■Overload of Transmission Facilities→Coordination mechanism for power network upgrading cost

■Frequency ControlShortage of frequency adjustment ability against RE fluctuation

→Forecasting of RE output→Cooperation control of battery and existing generator→Nationwide coordination of power system operation

Surplus power during low demand period→RE output control →Nationwide coordination of power system operation→Control with pumped storage hydro power plants→Electricity Power Storage

■Frequency ControlShortage of frequency adjustment ability against RE fluctuation

→Forecasting of RE output→Cooperation control of battery and existing generator→Nationwide coordination of power system operation

Surplus power during low demand period→RE output control →Nationwide coordination of power system operation→Control with pumped storage hydro power plants→Electricity Power Storage

Ongoing MeasuresOngoing Measures

Coordinating MeasuresCoordinating Measures

Under DevelopmentUnder Development

P.27P.27

P.28P.28

P.32P.32

P.31P.31

P.31P.31

P.29P.29

P.33P.33


Auto Voltage Regulator (SVR) Protection designed forreverse power flow

TransferTrip signal

Fault

Issues on Voltage Control & ProtectionIssues on Voltage Control & ProtectionReverse Power Flow Voltage control function of conventional distribution S/S transformers

cannot adjust voltage according to power flow direction, so distribution line voltage may deviate from control range

SVR

Residential PVResidential PVLargeLarge--scalescale

PVPV

Reverse Power FlowReverse Power Flow

DistributionDistributionSubstationSubstation

CountermeasuresTransferTrip signal

FaultPV


Transmission DistributionSubstation

Capacity ･･････

BeforePower Network designed for demand

After Integration of Large-scale REReverse power flow and Capacity shortage

Overload of Transmission Facilities Overload of Transmission Facilities

Large-scale Renewable Energy

We need to establish a coordination mechanismfor the power network upgrading cost.

The area suitable for integration of large-scale RE is normally a low demand area


Distribution System

Grid-side Batteries

Thermal

Substation

CustomerCustomer--side Batteriesside Batteries

Battery Battery SCADASCADA

HydroLoad Frequency ControlDaily Demand & Supply BalanceSpinning Reserve

Virtual LargeVirtual LargeBatteryBattery

Central Loading Dispatch Center

Power SystemInformation Network

TransmissionSystem

Countermeasures for Frequency ControlCountermeasures for Frequency ControlNational ProjectBattery SCADA


Battery SCADA

Control room

Battery Containers

HITACHI250kW/51kWh

or100kW/100kWh※1

MEIDENSHA/NEC

250kW/250kWh※1

TOSHIBA 300kW/100kWh※2

※1: nominal capacity ※2: operational capacity

Lithium ion Batteries

Battery SCADA Battery SCADA National Project


Large-scale Wind Power Resource

High Demand Area

Inter-regional tie lines

Nationwide Coordination of Nationwide Coordination of Power System OperationPower System Operation

Increased wind power usingIncreased wind power usinginterinter--regional tie linesregional tie lines


Prediction Ramp of Wind PowerPrediction Ramp of Wind Power

Installation ofObservation facilities 0

20

40

60

80

100

120

21 3 9 15 21 3 9 15 21

エリア発

電出力

時刻

発電出力予測

発電出力実績

Phase Error

Amplitude Error

Announcement

改善された発電出力予測

PredictedActual

Improvement

Meteorological Prediction Approach which considers changes in wind conditions and atmospheric fieldStatistical Prediction Approach which utilizes historic data and so onCombination of Meteorological Approach and Statistical Approach

National Project


DG (Diesel Generator)

DG control panel

Integrated control of energy storage

(battery, time shift)

Control of outputs of Renewables PV

WTSmall PV (Customer Side)

Battery (Customer Side)Large Heat StorageEVEcoCute (Fast DR)

Large Battery （Grid Side）

Demand Prediction

Optimal Economical Operation of DG

New DevelopmentIntegrated EMS

Existing System

Prediction of outputs and fluctuations of RE

New DG control Panel

Development of Integrated EMSDevelopment of Integrated EMSfor Niijimafor Niijima

control

monitorG

MeteorologicalInformation

National Project


Test facilities on NiijimaTest facilities on Niijima

WT300kWMeteorological Equipment

PV300kWBT300kWhMeteorological Equipment

PV10kW+BT12kWh(Elementary School)

PV10kW+BT12kWh(Junior High School)

PV10kW+BT12kWhEV + Rapid Charger(Village Main Office)

EV + Rapid Charger(Village Sub Office)

BT500kWh＊２ Niijima

Wind Observation Tower１ 2km

N

WT300kWMeteorological Equipment

National Project


ConclusionsConclusions• TEPCO's Grid has secured a stable power

supply, utilizing scale merit of large capacity and bulk power transmission.

• Smart Grid will be a platform to realize efficiency and optimization of energy use through a revolution in energy services.

• TEPCO will work to realize this platform with:– Smart meters and new services pursuing the ideal

business model in the liberalized market– Various R&D challenges for the introduction of large-

scale renewables

Thank yThank you ou ffororyoyour ur aattention!ttention!

TEPCO’s “Smart Grid” Initiatives - CSEE · IEEE 802.3 3GPP IEEE 802.3 Metering Part HEMS ......

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Transcript of TEPCO’s “Smart Grid” Initiatives - CSEE · IEEE 802.3 3GPP IEEE 802.3 Metering Part HEMS ......