Tristan Rigaut (Efficacity) Energy and Climate Management of a - - PowerPoint PPT Presentation

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Tristan Rigaut (Efficacity) Energy and Climate Management of a - - PowerPoint PPT Presentation

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Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 1 / 12 Energy and Climate Management of a Subway Station Tristan Rigaut 1 1 Ple Gare, Lot 1 Efficacity, Institute for the Energy Transition

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Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 1 / 12

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Energy and Climate Management of a Subway Station

Tristan Rigaut1

1Pôle Gare, Lot 1

Efficacity, Institute for the Energy Transition October 22, 2015

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 2 / 12

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Outline

1

A subway station microgrid A subway station Microgrid

2

Dynamic modelling of the station Supply/demand balance Particles dynamics Battery dynamics Economic criterion

3

Optimization of the energy and climate management Results

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 3 / 12

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SLIDE 4

Subway stations potential energetic flows

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 4 / 12

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SLIDE 5

A subway station Microgrid

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 5 / 12

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Supply/Demand balance

Over τ = 24 hours we have to ensure : PG(t)

Main Grid Power

+ PTrain(t)

  • Brakes Power

= PL(t)

Lights, Elevators

+ PV (t)

Ventilation

+PH(t)

Heating

+ PB(t)

Battery

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 6 / 12

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SLIDE 7

Particles Dynamics

We have to ensure the occupants safety regarding air quality : QPMmin < QPM(t) < QPMmax Knowing the PM10 dynamics :

Zone Volume

  • Vz

dQPM dt (t)

  • Particulate Matters Dynamics

=

Fan Air Flow

rvPV (t) (QPMe(t) − QPM(t))

  • Ventilation

+ VzQPMBrakes(t)

  • Braking Emissions

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 7 / 12

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Battery Dynamics

We can control the battery knowing its dynamic : dSOC dt (t) =

Charge/Discharge Efficiency

  • ρB

V0Qmax

Tension × Maximum Charge

× PB(t)

Charge/Discharge Power

Which are valid between bounds that ensure good ageing of the battery SOC min ≤ SOC(t) ≤ SOC max

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 8 / 12

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Economic criterion

Here is the criterion : J(u(.)) =

Total cost of consumed electricity

  • τ

C(t)

  • Cost (€/ Watt)

× PG(t)

Main Grid Power

dt

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 9 / 12

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No battery vs. Battery controlled

We could save 55% of money everyday with a battery

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 10 / 12

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Current air quality vs. Ventilation controlled air quality

We could save 45% of money everyday with a proper control of ventilation.

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 11 / 12

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Perspectives

Tristan Rigaut (Efficacity) Energy and Climate Management of a Subway Station October 22, 2015 12 / 12