1ra. Jornada técnica de

GENERACIÓN SOLAR TERMOELÉCTRICA

GESTE 2010

Estado actual y perspectivas de futuro

Leganés, 4 de noviembre de 2010.

Organización: Edgardo D. Castronuovo, Julio Usaola García e Ismael Sánchez Rodríguez-Morcillo. Universidad Carlos III de Madrid.

Mayores informaciones: Edgardo D. Castronuovo, castronuovo@ieee.org

Distributed Generation: A challenge for DSO’s

David Trebolle Trebolle“Head of real time and back office

1

4th November 2010

“Head of real time and back office systems in operation”

1. Introduction

2. Ancillary services with DG

Distributed Generation: A challenge for DSO’s

2. Ancillary services with DG

3. Conclusions

2

Introduction

3

What is happening today?

Yesterday

Today

The smart future

DSM

E.R. Solar 3%

E.R. Wind 13%

CCGT 29%

Hydro 9%

Nuclear 19%

Coal 12%

Fuel/Gas 1%

Energy balance 2009251 TWh

E.R. Rest 14%

E.R. Rest 11%

E.R. Solar 4%

E.R. Wind 19%

CCGT 24%

Hydro 18%

Nuclear 8%

Coal 12%

Fuel/Gas 4%

Installed Capacity 200993.215 MW

Source: REE

Parts of distribution networks

Types of Grid StructureOperation

TypeClients

(Nº)Installations

(Nº)Operation Flexibility

MonitoringLevel

Transmission(Security of supply)

(400, 220 kV)Mesh Mesh Very few Not many High High

Distribution

Subtransmission(132, 66, 45 kV)

Mesh / Radial

Mesh / Radial

Few Quite a lot Medium High

MV Mesh/ (Quality of Service)

MV(20, 15 kV)

Mesh/ Radial

Radial Several Many Low Medium

LV(400, 380 V)

Mesh / Radial

Radial Many Many Very Low None

38%

52%

10%

LV

MV

Subtransmission

The passive way…

Source: KEMA

Active networksN

ew te

chno

logi

es

QualityEfficient

Sustainable

New

reg

ulat

ory

fram

ewor

k

Microgrids

A new paradigm?

8

Demand side Management

Distributed generation

New

tech

nolo

gies

A new paradigm in the electrical business

New

reg

ulat

ory

fram

ewor

k

Storage, Electric vehicles

Smartgrids: a definition

“Electricity networks that can intelligently integrate the behavior and actionsof all users connected to it - generators, consumers and those that do both– in order to efficiently deliver sustainable, economic and secure electricitysupplies.

9Source: European Technology Platform SmartGrids

Smartgrids: a definition

“Electricity networks that can intelligently integrate the behavior and actionsof all users connected to it - generators, consumers and those that do both– in order to efficiently deliver sustainable, economic and secure electricitysupplies.

10Source: European Technology Platform SmartGrids

Gestión inteligente de la red

Telegestión

• AMI1 (despliegue

3

2

Gestión avanzada

de la demanda

• Participación activa de la demanda

4

• Integración de todos los DER

• Operación optimizada de las instalaciones

• Control avanzado de las sistemas de

Optimización y coordinación del SE global

5

Hoja de ruta Smartgrids

HOY deberíamos estar aquí

Tiempo

Optimización de la explotación

de la red

• Telecontrol y monitorización de red

• Telegestión del sistema de protección

• Herramientas de ayuda a la operación

• Gestión activa de la red

• Esquemas regulatorios

1. Advanced Metering Infrastructure

1

• AMI (despliegue masivo con comunicación bidireccional)

• Lectura remota y generalizada de la información de uso

• Integración en procesos de los DSO’s y TSO’s

• Integración de la generación distribuida

• Criterios técnicos de conexión

• Integración SSCC

• Operación en isla

• Cambios regulatorios

Integración de la GD

(desplazamientos de carga, reducción de consumo)

• Gestión activa de la demanda (integración en SSCC)

• Cambios regulatorios

• Automatización en consumo final (redes inteligentes en los hogares y aparatos eléctricos inteligentes

• Vehículo eléctrico

de las sistemas de red (fiabilidad, fraude, control de flujos)

• Almacenamiento eficiente de energía

• Cambios regulatorios (mejor asignación de costes según uso de las redes)

Ancillary services

12

Ancillary services with DG

Frequency Response

Regulating and Standing Reserve

Voltage and Reactive Power control

Constraints management

TSO

Ancillary services with DER?

Grid codes

Security of Supply contributions

Quality of Supply Services

Voltage control

Constraints management

Constraints management

DSO Grid codes?

Grid Code 7.4 (TSO) RD661/2008 (DG)

Transmission voltage levels required

Power factors required at distribution connection points

Power factors required for DG depending on the moment (peak, valley…)

DG and voltage control: Regulatory framework

connection points

RD1955/2000 (DSO)

+7% rated voltage for customers

( ) ( )2DGdemand

2DGdemand

DGdemand

QQPP

PPPF

−+−

−=

TSO vs DSO vs DG

DSO is not able to control power factor in transmission frontiers due to DGThe purpose of DSO is voltage control

Not Controllable

Ratio S/P3.00

Relation S/P required to maintain voltage profile when active power is injected in the grid

The effect of parameter R/X in voltage profile

0.00

0.50

1.00

1.50

2.00

2.50

400 V 20 kVsubterráneo

20 kV aéreo 66 kV 132 kV 220 kV

Source: Seville UniversityRedes 2025 Project

DG voltage control contribution

Source: Seville UniversityRedes 2025 Project

Security of Supply DG contribution

DG can delay investments in some cases

Period of firmness is lowThe primary source is controllable and predictableLow capacity requiredMany embedded Distributed Generators

Conclusions

18

Conclusions

Distribution active managementFrom passive to active gridsFrom inflexibility to flexibility and controllabilitySmart grids

From DG connection to DG integration..From passive demand to active demand…From passive networks to active networks

From “Generation follows demand” to coordination between all DER

DG integrationTechnical connection criteriaActive participation in ancillary servicesLocation signals

Expected Benefits

Smart DSO and DG Incentive schemes.DSO should recover costsGrid codesAncillary services with DER

New technologies…

Regulatory framework

Less fossil fuel dependenceMore efficiency in use of assetsIncrease reliability and security of supply

Location signals

For DSO’s and TSO’sapplied to information controlsmart metering and monitoring

Thank you very much

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