A new solution for future power systems - TU Wien · A new solution for future power systems ......

A new solution for future power systems

Albana Ilo

TU Wien

Institute of Energy Systems and Electrical Drives

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Energy Materials Nanotechnology

Smart Grid Technologies Meeting

16-20 August, 2016 , Berlin, Germany


The penetration of the new forms of energy, wind and photovoltaic, in

form of small decentralized plants and slow storage development is

challenging not only the power system operation but also the

emissions minimization processes.

Popular concepts in Smart Grids

Virtual Power Plants

After more than 15 years research the question arises:

Are these concepts sufficiently broad to properly characterize

the variety of the smart grid operation?

Microgids

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The penetration of the new forms of energy, wind and photovoltaic, in

form of small decentralized plants and slow storage development is

challenging not only the power system operation but also the

emissions minimization processes.

Popular concepts in Smart Grids

Virtual Power Plants

After more than 15 years research the question arises:

Are these concepts sufficiently broad to properly characterize

the variety of the smart grid operation?

Microgids

…“The adoption of microgrids as the

paradigm

for the massive integration of distributed generation will allow technical

problems to be solved in a decentralized fashion, reducing the need for

an extremely ramified and complex central coordination and facilitating

the realization of the Smart Grid.”…

Source: IEEE-PES Task Force on Microgrid Control, “Trends in Microgrid Control”, IEEE Transactions on smart grid, Vol. 5, No. 4, July 2014

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“LINK” – The Smart Grid Paradigm

Hardware

Automation

Communication

Electrical applianceControl schema Interface

LINK - Paradigm

A technical system consists of

three major elements:

Source: A. Ilo, “Link- the Smart Grid Paradigm for a Secure Decentralized Operation Architecture”, Electric Power Systems Research - Journal – Elsevier, Volume 131, 2016, pp. 116-125.

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“LINK” – The Smart Grid Paradigm


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Electrical applianceControl schema

Interface

Link - Paradigm

Grid Secondary control

Interface

Grid - Link

ProducerPrimary control

Interface

Producer - Link

˜ ˜

Set

point

Architecture Elements

StoragePrimary control

Interface

Storage-Link

St St

Set

point

Architecture Elements


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Major architecture components:the Grid-Link

The Grid-Link is defined as a composition of a grid part, called Link_Grid, with the corresponding

Secondary-Control and the Link_Interfaces.

- The Link-Grid size is variable and is defined from the area, where the Link_Secondary-Control is set up.

- The Link-Grid refers to electrical equipment like lines/cables, transformers and reactive power devices,

which are connected directly to each other by forming an electrical unity.

BLiN Tr A

BSN ˜

BLoN

BLiN

BPN

BLoN BLiN BLiN

BLiN

St

Secondary

controlSet point


Operation / Study Link (i)Grid-Link

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Smart Grid Technologies Meeting8


Technical-functional architecture of smart power systems

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Power system overview based on the “Energy

Supply Chain Net” model: horizontal und vertical axis

Source: A. Ilo “The Energy Supply Chain Net”, Energy and Power Engineering, Volume 5 (5), July 2013.

Per definition the “Energy Supply Chain

Net” is a set of automated power grids,

intended for “Chain Links” or “Links”,

which fit into one an - other to establish a

flexible and reliable electrical connection.

Each individual “Link” or a “Link”-bundle

operates independently and have

contractual arrangements with other

relevant boundary “Links”, “Link”-bundles,

and suppliers which inject directly to their

own grid. Each “Link” or “Link”-bundle is

communicatively coupled with the other

relevant “Links” or “Link”-bundle’s via the

usual communication instruments

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Holistic model of the electrical industry

Harmonisation of power grid physics and market rules

The “Energy Supply Chain Net” model Holistic market model

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M A R K E T

M A

R K

E T

M A

R K

E T

M A R K E T

Distributed LINK-based general architecture of

smart power systems

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Customer Plants

Neighbor Grid - Link (j+1)

T TT

T

T

TTT

T T T

Operation / Study Grid - Link (i)

Storage-Link (p)

Storage-Link(i)

Storage-Link (1)

Producer-Link (m)

Producer-Link (k)

Producer-Link (1)

Neighbor Grid - Link (j)Neighbor Grid - Link (2)Neighbor Grid - Link (1)

TMMM

M M

MM

M

MM

M

M

M

AGGREGATOR


Demand response process: line overload on high voltage grid

Costumer

-LinkCostumer

-Link

HV_LinkOne line is

overloaded.

It is required 2% and

6% demand

reduction in points AH

and BH respectively

AH

BH

MV_Link_12% demand reduction

can be reached by using

CVR. No other actions

are necessary

MV_Link_2Only 5.4% demand

reduction can be reached

by using CVR. Other

actions are necessary

LV_Link_20.2 % demand reduction

can not be realised

within the link. Other


A2M

B2M

Customer-Link0.4 % demand reduction

by switching off cooling

system. No other actions

are necessary

A1L

-0.01%

new set point

approved

set point

Customer

-LinkA2L

Customer

-Link

LV_Link_10.4 % demand reduction

can not be realised

within the link. Other


Customer

-Link

LV_Link

HVSO

MVSO_A LVSO-A

LVSO-B

B2L

HMU-123

HMU-945

HMU-1001

Source: A. Ilo, “Link- the Smart Grid Paradigm for a Secure Decentralized Operation Architecture”, Electric Power Systems Research - Journal – Elsevier, Volume 131, 2016, pp. 116-125.13


MV-Grid-Link and Producer-Link, realized and

operated in the framework of ZUQDE project, Salzburg, Austria

Reactive power and voltage control

BLiN

˜

MVG

30.0 kV

Secondary

control

˜

˜ ˜

Q Q

U

Q Q

cosf=const

Neighbor LV-Grid-LinkNeighbor LV-Grid-Link

Neighbor HV-Grid-Link

Operation / Study MV-Grid-Link

Lungau

Neighbor LV-Grid-Link

cos(f)=const.

MV-Grid-Link

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MV-Grid-Link and Producer-Link, realized and

operated in the framework of ZUQDE project, Salzburg, Austria

Reactive power and voltage control


Conclusions

The LINK – based decentralised architecture:

- Fulfils the electricity market rules

- Provides cyber security and data privacy by minimizing the number of the

exchanged data

- “LINK” paradigm harmonizes the entire power grid and the costumer plants in one

unique holistic model.

- Facilitates all actual power system operation processes like demand response,

load-generation balance, voltage assessment, outage managements, etc.

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Thank you for your attention

Ass.Prof. Dipl.-Ing. Dr.techn. Albana Ilo

TU Wien

Institute for Energy Systems and Electrical Drives

Telefon: +43 (0)1 58801 370114

Mail: [email protected]

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