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Titre: Renewable Energy Source Integration by MicroGrids in Smart Cities
Date de début: February 24 2017
Heure de début: 15:00
Heure de fin: 17:00

Renewable Energy Source

Integration by MicroGrids in Smart Cities        Résumé : 

Electric Grids are currently migrating from fully controllable and

predictable fossil based systems, to intermittent, rather

unpredictable, with large shares of renewable energy sources. In

the same time, electricity consumption has much increased, and is

expected to further increase with the arrival of electrical

vehicles. Current systems are not able to deal with all these

changes, but new technologies in control, computers and

communications have allowed the possibility of SmartGrids who can

cope with this new reality.

These new SmartGrids can greatly benefit from the transformation

cities are going through. Distributed Generation from solar

panels, urban wind turbines, combined heat and power have greatly

changed cities from consumers to alternating consumers and

producers, also known as prosumers. This new production scheme

comes in at the same time as new intermittent, and sometimes

controllable, loads represented by electric vehicles and Smart

Buildings. This multiplication of time-varying sources and loads

has brought the electric system to extreme strain, and the

stabilization of such systems may be a very tough problem. Mostly

for this reason, it is being considered to split urban power grids

into cluster of loads and microsources operating as a single

controllable system that provides power to its local area. To

attain this goal, it is necessary to also consider energy storage

to match this strict power balance.

But even there, the task is still very complicated. Power sources,

loads and storage work in different time scales. Furthermore, most

of new elements are connected to the grid by power electronic

converters, which are nonlinear. This means that the considered

system is represented by networked nonlinear systems with

different time scales. It is then proposed to acknowledge the fact

that many components of MicroGrids like solar panels, batteries,

fuel cells, supercapacitors and electric cars are in Direct

Current (DC), in contrast to the standard Alternative Current

(AC). The MicroGrid is then considered as a Mixed AC/DC grid,

where nonlinear techniques are used to stabilize the DC side, and

provide stable power to the AC one. Furthermore, it is necessary

to consider a multi-layered control scheme to cope with the

different time scales present in such systems. In the lower

control layer, nonlinear control techniques have been utilized in

order to correctly feed the loads and to respect grid voltage

stability around a desired equilibrium point. A secondary higher

level controller is designed using Model Predictive Control

techniques to steer the whole system to assure energy fulfilment,

and if possible, optimality in respect to an objective function.

Biographie :

Gilney Damm is Associate Professor at the Paris-Saclay University,

France. He received his /Habilitation à Diriger des Recherches/in

2010 and Ph.D. in 2001 at Paris-Saclay University; his M.Sc. in

automatic control in 1997 and his Bachelor in Electronic Engineer

in 1995 at the COPPE - Rio de Janeiro Federal University. His

research interests concern nonlinear and adaptive control and

observers applied to power systems (SmartGrids, SuperGrid,

MicroGrids). His main applications are in the field of large scale

renewable energy integration; Multi-Terminal DC systems; Mixed

AC/DC MicroGrids; energy integration in SmartCities; Variable

Speed Pumped Storage Plants; Control of power generators

(transient stabilization, frequency and voltage stability);

synchronization of power networks.

He has a large experience as coordinator or Work-Package Leader in

several European and French research projects as the European

Network of Excellence on Highly Complex and Networked Control

Systems - HYCON2, the Smart Energy Summer School and the European

Virtual Smart Grid Lab from the KIC EIT Digital (former ICT LABS),

and the French project WINPOWER. In the same way, he is co-leader

of the French research forum on SmartGrids, and was co-leader of

the Research Initiative Large Scale Systems and SmartGrids from

the Institute for Control and Decision of Paris Saclay – iCODE.

Currently his main research activities are connected to the

Institutes for Energy Transition SuperGrid (on large scale high

voltage electrical grids) and Efficacity (on MicroGrids and power

grids in SmartCities).

He has received the French research excellence grant (Prime

d'Excellence Scientifique) since 2008, and is member of the IFAC

Technical Committee TC 6.3 Power and Energy Systems since 2015. He

is Associate Editor from the European Journal of Control since


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