Smart Grid - Selta's Point Of View

SELTA FOR SMART GRIDSHigh-tech solutions for smart networks

October 15, 2014 Stefano Zanin - Marketing

Worldwide leading company in Telecommunications, ICT, Energy and Transport networks Automation

Our customers are Utilities, Telco Carriers and Service Provider; Small, Medium and Large enterprises, Corporates; local and central Public Administration

Selta in figures

Founded in late 1972

58 M€ turnover 2013

350 employees (end 2013)

13% reinvested in R&D


• HQ Cadeo (Piacenza): top management and R&D activities for Automation and Smart Grid markets.

• Tortoreto (Teramo): R&D activities for Telecom and ICT markets, production center

• Roma: Defence & Cyber Security activities

Italy

• Mostolès (Madrid): Selta has its own company. During the last two years Selta Espana had a strong empowerment due to Telefonica partnership

Spain

• Moscow: Selta has its own company born in 2011 after an intense development activity

Russian Federation

• Our largest market in Europe: Selta has a direct relationship with EDF, RTE and SNCF, acting as a true partner and technology provider rather than a simple supplier

France

• In Africa, Latin America and Middle / Far East, Selta operates through a consolidated partner network which makes the company a global operator

Rest of the world

International presence

Turnover & Employees segmentation


54%

46%

% Turnover (last 3 years average)

National market (Italy)

International market

Research & Development

27%

Marketing & Sales9%

Finance & Accounting

4%

Operations28%

Services21%

Other11%

350 total employees


Selta Businesses

DEF

EC&NEA&T

Energy Automation & Transport

Defence & Cyber Security

Enterprise Communications

& Networks

• Design, certify and support ICT solutions tailored for classified and not classified data processing

• Design, certify and support the implementation and utilization of Tempest system (Compromising Emanations)

• Consultancy services for security assessments (Common Criteria, ITSEC), ICT products and systems security evaluation for classified and not classified data. Selta laboratories are recognized in the security sector as an independent evaluator

Defence & Cyber Security


• IP platforms and terminalsfor Unified Communications & Collaboration, mobilitysolutions, vertical solutionsfor hospitality, utilities and PA (Smart City)

• Cloud Communications

• Broadband and ultrabroadband accessnetworks solutions in xDSL, FTTx, bonding technology

Enterprise Communications & Networks


• Mission-critical solutions for Automation, Telecontroland Services Telecommunications of energy and transport utilities networks

• Smart Grid solutions for the management of high and medium voltage distribution and transmission networks, of generation plants and electrical network protection systems

Energy Automation & Transport


“Europe 2020 is the EU's growth strategy for the coming decade.In a changing world, we want the EU to become a smart, sustainable and inclusive economy”

Where it all began…A smarter way of thinking


José Manuel BarrosoFormer President of the European Commission

The 20-20-20 targets represent an integrated approach to climate and energypolicy that aims to combat climate change, increase the EU’s energy security andstrengthen its competitiveness:

EU Climate-Energy objectives for 2020


• 20% reduction in EU greenhouse gas emissions

• 20% of EU energy consumption from renewable resources

• 20% improvement in the EU energy efficiency

To achieve the 20-20-20 goal it is necessary to ensure sustainability, safety andcompetitiveness.

Existing power networks must evolve and become “smart”.

Evolution towards “greener” sources

EU first started to move towards the growth in production from renewablesources, encouraging every Member State to adopt specific legislation topromote energy production from wind power, solar plant, hydroelectric andbiomass.

In Italy the growth has concerned mainly wind powerand solar plant total amount of installed energy is about 20%of total installed production capacity but could theoretically cover almost 40% national demand in electric power


Overview of current Italian situation


Wind, Biomass, Geothermal, and others:

• Green Certificates 1 per MWh (2013 average market value ≈ 85€)

• Energy produced to be sold with: market exchange, net metering,simplified purchase and resale

• Comprehensive tariff (energy value + incentive) ≈ 0,30 €cent/KWh

• Duration of incentives formula 15 years

• Upper limit for cumulated annual incentives 5,8 bln€/year

Photovoltaic:

• First years of subsidies for 3÷20KW PV plant ≈ 0,50 €cent/KWh

• Feed In tariff for 3÷20KW PV plant 1st half 2013 ≈ 0,16 + 0,08 €cent/KWh

• Duration of incentives formula 20 years

• Upper limit for cumulated annual incentives 6,7 bln€/year

Subsidies and incentives (1)

Overview of current Italian situation


Subsidies and incentives (2)

Sales services€ 271

Metering& Grid costs

€ 75

Taxes€ 68

Renewable subsidies

93%

Others 7%

System charges€ 100

Feed In Tariff counter

source: GSE

Annual Energy Bill: 514€(average user, 2700 KWh)

Elaboration on AEEG data

Characteristics of renewable power plants

• Wind Power: typically large installation of relevant power, both on-shore andoff-shore, mainly connected directly to HV transmission grid

• Solar Plant: from very low to medium power size, mainly connected to LVnetwork (residential and small size industrial plants) and MV distribution grid(large photovoltaic plants)

Growing of production on LV and MV side of the electrical network hashighlighted a new issue to face Distributed Generation


GENERATION TRANSMISSION DISTRIBUTION END USER

DISTRIBUTIONEND USER

The scenario is evolving…


Traditional Network

• Centralized control suitable for passive network

• One-way energy flows, passive Grid

• Limited interaction between control centers and peripheral nodes

• Fixed base trading of energy market

Smart Grid

• Distributed control of the equipment in an active network

• Bidirectional energy flows, active Grid

• Full interaction with loads, distributed generation, storage systems

• Demand-Response policy in real-time energy market

… how reacting?

Power grid operators, especially Distribution System Operator, has twopossibilities to approach and face this issue:

• Large investments in infrastructure to upgrade the grid and guarantee reliability and security of energy supply

• Using innovative and “smart” technology in order to compensate the deficits of an “old” paradigm and preserve network assets

Obviously, the second one is the only cost effective way to reach the goalensuring grid stability…


• Communication system “always on”, real-time communication, data frame

• Supervision system enabling new functionalities

• Protection and control IED ensuring the supply of power in a reliable way

Main features of a Smart Grid


Selta: the “smart” choice

SELTA is the ideal partner for utilities that want to approach smart paradigm, thanksto its relevant know-how covering several fields:

• automation of HV/MV stations, with control, monitoring and protection equipment compliant with the IEC 61850 and IEC 61131-3 standards

• remote control, protection and regulation for transmission substations, distribution substations and end users’ power plants

• SCADA and Distribution Management Systems

Automation, monitoring, control


SELTA communication solutions ensure capillarity, excellence in performance,reliability and information security using different kinds of communication means,such as:

• “Access” equipment for cable and optical fiber (flexible multiplexers, DSL modems, bonding terminals)

• Solutions leaning on Wi-Max, as well as 3G and LTE mobile networks

• Power line carrier (PLC) transmission systems for HV and MV power lines

Selta: the “smart” choiceCommunication systems


First projects funded by EU and Italian GovernmentPresence of Selta in smart grid projects


• Grid4EU – “Increase the MV network’s hosting capacity for DER, introducing activecontrol and demand response of MV generators, controllable loads and storage”:project funded by the EU FP7 committee (the Seventh Framework Program for EUResearch), coordinated by ERDF (France) and managed by Enel (Italy) regardingtechnical choices

• POI-P3 – Improvement of the distribution network according to the Smart Gridprinciples, carried by Enel Distribuzione, italian DSO

• ASSEM – Project approved for incentive treatment by the AEEG (Energy and GasAuthority) for studying and developing new active MV network for multiutilitycompany located in San Severino Marche (Italy)

• Deval – Project approved for incentive treatment by the AEEG (Energy and GasAuthority) for studying and developing new active MV network for multiutilitycompany operating in Valle d’Aosta (Italy)

• MIUR – Project «RoMa: Resilience enhancement of a Metropolitan Area» with respectto the call “Smart Cities and Communities and Social Innovation”

Smart Grid architecture


TS

CB

DS IPP

PLC

GENERAL PROTECTION

INTERFACE PROTECTION

3G, LTE, HV-PLC, f.o.

RTU

TRAFO RELAY

FEEDER RELAY

DLC

DLC

SWITCH

SWITCH SWITCH

RTU

GATEWAY

REGULATOR

DISTRIBUTIONMANAGEMENT

SYSTEM

IEC

10

4 -

61

85

0

IEC 6

18

50

IEC 61850 IEC

61

85

0

MODBUS

(wire)

(wire)

TS Transmission SubstationDS Distribution SubstationIPP Independent Power Prod.

HV

MV busbar

HV/MV distribution grid

• IEC 61850 based RTU for HV/MV substation TPT2020

• IEC 61850 and 60870 based RTU for MV/LV substation UP2008 next. gen.

• Transformer Integrated Protection DV7500

• IEC 61850 interface for PI and PG DV7300

• Switch layer-3 for HV and MV substations SNN-110

• IEC 61850 Interface equipment for DG regulation IRE

• Power Line Carrier G3-PLC based for MV grid SDLC

Under development:

• IEC 61850 MV feeder protection DV9xx-A3

• Fault detector and measuring system RGDM

• Multicast remote tripping for MV grid STSC

Enel and Grid4EU productsSmart Grids solutions


Control devices Smart Grids solutions


Several IEC 61850 RTUs

IEC 61850 Regulation Interface

IEC 61850 device to interface plant controller (PLC orInverters) via field protocol• Setting of P, Q, cos(ϕ)• Implementing regulation functions (Q(V), P(f),

PF(P)...) via IEC 61131-3 logic• Measuring of real-time capability of the plant• Able to interface and manage BMS (storage)

IEC 61850 RTUs for HV and MV substations• Support of IEC protocols (61850, 60870-5-

101, 103, 104) as well as DNP3, Modbus, HNZ, legacy protocols

• PLC functions thanks to IEC 61131-3• Fault location algorithms, MV switchgears

management for trunk failure isolation• Diagnostic via SNMP and web (HTTPS)

Protection devices Smart Grids solutions


SPI7300 Gateway

SPT7500 Integrated Transformer Protection

Innovative IEC 61850 protection relay for both HVand MV, integrating AVR for OLTC• Several protection function including differential

trafo (87T), max current (51), negative sequence overcurrent (46), max voltage (59)

• V, I, P, Q measuring and regulation• Rapid reclosure and Circuit Breaker failure

IEC 61850 Gateway (protocol 2 wire) for interfacingGeneral Protection and Interface Protection• Load shedding and Generation disconnection• Setting narrow/wide threshold operation

Communication devices Smart Grids solutions


G3-PLC FCC

Modulation OFDM

Sub-Carriers 256

Sub-Carrier Modulation DBPSK/DQPSK/D8PSK

Bit per carrier 3

Transmission Band 159.4-478.1 khz

Maximum Bit-rate 207.6 kbps

Distribution Line Carrier

SNN-110 Smart Grid

L3-Switch with specific Smart Grid features:• HSxPA, LTE, f.o. WAN interfaces• redundant power supply• VLAN and Priority support (IEEE 802.1q e p)• VPN support + IPSec encryption• RSTP @ L2 and OSPF+RIP @ L3

Advantages achieved by Enel

• Communication towards the Distributed Generation and towards all active andpassive elements

• Protection, control and diagnostic of the MV/LV network in the presence of distributed generation “islanding” procedures

• Control of power flows and voltage regulation along the feeders

• Increasing hosting capacity keeping the stability of the network

• Rapid insulation of the trunk failure according to logical zone selectivity algorithms

• Geographically extended measurements (Wide Area Measurement System) in order to give accurate information to TSO about grid status

… but suitable for any DSO


• The utility A.S.SE.M. S.p.A. manages gas, water and energy services network

• Project funded by the AEEG (Energy and Gas Authority) with the aim to controland manage Distributed Generation plants (DG)

• Active Users involved in the project: three hydroelectric plants (480, 330 and270kW) and three photovoltaic plants (100, 1700 and 9kW)

• One Transmission Substation manages the whole MV network (20kV) and it’sconnected to 132kV HV network

• Two MV busbars feeding a total of 124 and 41km lines each

• 8500 LV users counting over 35MW

• 40 MV users counting over 8MW

Selta for smart grids: A.S.SE.M case historySupplied smart grid project for Italian utility


Selta solution for A.S.SE.M.HV/MV substation central system

BCU

LAN IEC 61850

I/O

I/O

I/O

Power Factor adj.

Busbar Coupler

AVR OLTC

SPL 1Feeder

Cannuciaro

SPL nFeeder…………

HMI workstationControl Room

DV 9xx Protection Relay – BCU wiring

SCADA-DMS

SNTP

DV 910

DV 913

DV 907

SPSTrafo Relay

HV/MV

Other Relay Signals


Selta solution for A.S.SE.M.Main functions of SCADA DMS

SCADA DMSeXPert

DB Oracle

Regulation Algorithm &

Topology

DB Real-Time

Off-line Configurator

MV network configuration data

MV network real-time data

Fe IEC 61850

MeasuresCB status

RegulationSet-points

Load shedding

Fault management &System restoration

Load balancing via feeder reconfiguration

Load Flow computation

State Estimation

P/Q Power Control

cos(ϕ) regulation


Selta solution for A.S.SE.M.HV/MV substation single line diagram


Selta solution for A.S.SE.M.DMS topology view


2nd halfMV busbar

Radio link WiFi connects 4 sites

Mixed network DSL and 3G/GPRS covers all sites involved

HV/MV station BCU

Switch

1st halfMV busbar

Switch

SCADA DMS

Switch

Busbar«Contro»

Switch

Patch Panel

Patch Panel

Monomodal Fiber

Multimodal Fiber

BCU«Contro»

Switch

Switch

Optical fiber links HV/MV station and MV substation along MV line

Telecommunication networkSelta solution for A.S.SE.M.


Peripheral system for MV substationSelta solution for A.S.SE.M.

DG Distributed Generation (Active User side of Substation)DS Distribution Substation (MV)


Interface Protection

System

DGRcosφ / RPA

I/O

DSUser

meter

MODBUS

20 kVProduction

meter

Fault Detector

Circuit Breaker

SELTA router SNN110

61850

SELTAPeripheral

Unit

STCE-K

Main functions for ASSEM MV network

• When a earth fault occurs the line protection on the top of the feeder keepsthe breaker closed, thanks to Petersen coil supporting the fault current

• Fault detector systems sense the direction of the current, share the value between neighboring devices, and find the origin of the fault

• The portion of the grid affected by the fault is automatically isolated

• Short Circuit fault can be managed as well, thanks to the boost in communication process given by 61850 Goose messaging

Trunk failure searching and isolating

DS

Line Protection

DG

Interface Protection

Feeder

DS

DS


Main functions for ASSEM MV network

Target: isolating the portion of the network affected by the fault as well asrerouting power supply along the feeders :

• When a fault occurs the SPL located in Distribution Substation sends aninhibition message to the SPL in CP and interrupts flow from the DistributedGeneration

Logical zone selectivity

REMOTE TRIP

INHIBITIONCOMMAND

TS

DS

LPS

LPS LPS

DG

DG

DG

DG

LPS Line Protection System


When a fault occurs the Line Protection System breaks the circuit and sends aremote trip signal to the Interface Protection System of the DistributedGeneration, avoiding the risk that generators continue to feed an isolatedportion of network

Main functions for ASSEM MV networkRemote trip (1)

REMOTE TRIP

REMOTE TRIP

REMOTE TRIP

TS

DG

DG

DGLPS


Main functions for ASSEM MV networkRemote trip (2)

Since a disconnection from Transmission System Operator occurs the PrimarySupply Failure system sends a signal to the supervision system that gives theremote trip command to the Line Protection System, in order to disconnectDistributed Generation

TSREMOTE TRIP

HV LOSSSIGNAL

DG

DG

DG

DG

LPS

LPS

LPS

PSF

PSF Primary Supply Failure


Innovative functions for ASSEM MV networkVoltage profile optimization (1)

20.0016.0012.008.004.000.00 [km]

NF

-G000252

N001013

N001014

N000888

SS

-C20030

0P

SS

-C20154

0

N000873

N000861

N000932

N000950

SS

-C20009

0

SS

-C20135

0

N000942

SS

-C20165

0

N000829

N000798

SS

-C20098

0

N000795

N000794

NF

2-S

3000

27

SS

-C20402

0

SS

-C20103

0

NF

1-S

3000

01

N000816

N000811

N000817

N000813

SS

-C20181

0

NF

1-S

3000

10

SS

-C20111

0

NF

1-S

3000

03

N000786

N000784

NF

2-S

3000

11

SS

-C20105

0

N000778

N000777

SS

-C20119

0

SS

-C20202

0

1.09

1.07

1.05

1.03

1.01

0.99

[p.u.]

Voltage, Magnitude

Ore (hh_mm) 12_00 VP_TR_Rosso

Date: 02-Feb-2013

Annex: /1

DIg

SIL

EN

T

Before optimizationmax V = 108%

20.0016.0012.008.004.000.00 [km]

NF

-G000252

N001013

N001014

N000888

SS

-C20030

0P

SS

-C20154

0

N000873

N000861

N000932

N000950

SS

-C20009

0

SS

-C20135

0

N000942

SS

-C20165

0

N000829

N000798

SS

-C20098

0

N000795

N000794

NF

2-S

3000

27

SS

-C20402

0

SS

-C20103

0

NF

1-S

3000

01

N000816

N000811

N000817

N000813

SS

-C20181

0

NF

1-S

3000

10

SS

-C20111

0

NF

1-S

3000

03

N000786

N000784

NF

2-S

3000

11

SS

-C20105

0

N000778

N000777

SS

-C20119

0

SS

-C20202

0

1.05

1.03

1.01

0.99

0.97

0.95

[p.u.]

Voltage, Magnitude

Ore (hh_mm) 12_00 - Ottimizzato - Presa ottimale n. -2 VP_TR_Rosso

Date: 02-Feb-2013

Annex: /1

DIg

SIL

EN

T

After optimizationmax V = 104%

Thanks to the optimization algorithm, tap changer position and Q values are modified, and a profile without “upper violation” is obtained.

October 15, 2014

Innovative functions for ASSEM MV networkVoltage profile optimization (2)

OLTC forced to often change tap position in order to balance voltage level at the very top of the feeder

Power trend not predictable due to the presence of clouds over the plant area


Innovative functions for ASSEM MV networkFurther advanced features


• New voltage regulation based on reactive power modulation of DistributedGeneration two possible ways to adjust the voltage level on MV network, inorder to keep the value within given thresholds:

• Setting tap changer positions on HV/MV transformer to regulate voltageon the whole busbar

• Working on cos(ϕ) value supplied by end user’s Power Plant

• Limitation and modulation of the active power injected by each distributedgeneration unit

• Automatic reconfiguration of grid topology performed by SCADA DMS system

Storage: real bargain or “trend topic”?


TSODeferral of asset

investments

Peak Shaving

Time Shifting

Black Start

Dispatching Services real time balancing

Frequency, Voltage and VAR regulation

DSOPeak Shaving

Time Shifting

Tuning of HV/MVexchange profile

Quality of Service

Frequency, Voltage and VAR regulation

USERMaximizing

self-consumption (leveraging PV plant cost)

Reduction ofimbalance costs

Predictability of power profile injection

Not yet a cost effective solution…


• Facilitate the integration of dispersed energy sources increasing the hostcapacity of the grid avoiding expensive asset’s investments

• Provide more information and service options to prosumer DemandResponse trading dynamics Customer Satisfaction

• Reduce the overall environmental impact of power generation, transmissionand distribution (less CO2 emissions)

• Enhance supply reliability and quality of service saving operation costs

• Anticipate grid deficiencies and implement the appropriate correctivemeasures reduce non technical losses

• A more efficient management of peak electricity demand, reducing therequired generation capacity asset optimization (low CAPEX)

Smart Grid advantages


Any question?


Thank you for your attention

Stefano ZaninMarketing Manager

SELTA S.p.A.Via Emilia, 23129010 Cadeo (PC) – Italye-mail: [email protected]: +39 331 5791987

Visit us onhttp://www.selta.com

mailto:[email protected]

http://www.selta.com/

Technology

Smart Grid - Selta's Point Of View