« emr and energy management of a hybrid ess of an … · « emr and energy management of a hybrid...
Post on 08-May-2018
222 Views
Preview:
TRANSCRIPT
EMR’14CoimbraJune 2014
Summer School EMR’14“Energetic Macroscopic Representation”
« EMR and energy management of a Hybrid ESS of an Electric Vehicle »
Dr. J. Trovão, F. Machado, Prof. A. Bouscayrol, Dr. W. Lhomme (INESC Coimbra, IPC/ISEC, Portugal
L2EP, Université Lille1, France,)
http://www.emrwebsite.org/
EMR’14, Coimbra, June 20142
« EMR and IBC of an Electric Vehicle »
- Introduction -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
http://www.plugincars.com/
– ELECTRIC VEHICLES :
• the key components toSUSTAINABLE MOBILITY !
– BARRIERS…
– ENERGY STORAGE…
» 100 years old problem!
– BATTERIES (best suitable energy storage forvehicles):
» expensive, heavy, bulky, low specific energyand/or power, and limited cycles-life;
POSSIBLE SOLUTION : HYBRIDIZATION USING SCSOBJECTIVE :
• A STRUCTURING method for ENERGY MANAGEMENT definition;
• For battery lifetime improvement.
Electric Vehicles is a key components to SUSTAINABLE MOBILITY !
EMR’14, Coimbra, June 20143
« EMR and IBC of an Electric Vehicle »
- Outline -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
1. Power System Description
2. Modelling and Control of the System Using EMR
3. Management Strategy Definition
4. Simulation Results (using ECE 15 Driving Cycle)
5. Conclusions
EMR’14CoimbraJune 2014
Summer School EMR’14“Energetic Macroscopic Representation”
« Power System Description »
EMR’14, Coimbra, June 20145
« EMR and IBC of an Electric Vehicle »
- L2EP Electric Vehicle: Tazzari Zero EV -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
– Neighborhood Electric Vehicle (NEV)
– Vehicle mass (tare): 407.60 kg
– Motor power: 15 kW ;
– Lithium-ion: 24 x 5.6 = 134.4 kg
– Driving Range: 140 km
– Maximum speed: 85 km/h;
– Maximum Aceleration: 0-50 km/h < 5 s;
– DC bus Voltage: 80 V.
Tazzari Zero characteristics
ubat i im2
1 2 3
Tim
Ωgear i im1
i ts
EMR’14, Coimbra, June 20146
« EMR and IBC of an Electric Vehicle »
- L2EP Electric Vehicle: Tazzari Zero EV -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
– CURRENT TOPOLOGY CONFIGURATION :• Li-ion Batteries fed directly the traction system;
• No control on the DC bus voltage;
• The batteries voltage decrease
⇒ the powertrain current increase!
ubat i im2
1 2 3
Tim
Ωgear i im1
its
EMR’14, Coimbra, June 20147
« EMR and IBC of an Electric Vehicle »
- L2EP Electric Vehicle: Tazzari Zero EV -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
– NEW TOPOLOGY CONFIGURATION :• Active parallel topology with Batteries and Supercapacitors;
• A DC/DC converter per source is used;
• The input voltage of these converter can be different and the output can beadjustable to a shared DC bus supplying the traction system.
• NiMH Batteries• 5.8 kW; 13 A.h• Total Weight: 48 kg
• Suparcapacitors• 48 kW; 125 F• Total Weight: 35.6 kg
EMR’14CoimbraJune 2014
Summer School EMR’14“Energetic Macroscopic Representation”
« Main Objective… »
EMR’14, Coimbra, June 20149
« EMR and IBC of an Electric Vehicle »
- Energy Management Structure -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
EV Management Layer
EV Control Layer
HIERARCHICAL STRUCTURE OF THE EMS.
vSC
iSC
SC
ibat
vbat
bat
SC Bat.
EMR’14CoimbraJune 2014
Summer School EMR’14“Energetic Macroscopic Representation”
« Modelling and Control of the System Using EMR »
EMR’14, Coimbra, June 201411
« EMR and IBC of an Electric Vehicle »
- EMR of the Hybrid ESS EV -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
EMR’14, Coimbra, June 201412
« EMR and IBC of an Electric Vehicle »
- EMR of the Hybrid ESS EV -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
or
EMR’14, Coimbra, June 201413
« EMR and IBC of an Electric Vehicle »
- EMR of the Hybrid ESS EV -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
– Modelling the Environment;
– Modelling the Chassis;
– Modelling the Gearbox;
– Modelling the Electric motor and its controller;
– Modelling the Parallel coupling;
– Modelling the DC bus.
EMR’14, Coimbra, June 201414
« EMR and IBC of an Electric Vehicle »
- Tuning path -
Objectives: control the EV velocity and DC bus voltage
Tuning variable: modulation ratio of the DC/DC converters and motor torque reference
– POWERTRAIN CONTROL :
– FEEDING SYSTEM CONTROL:
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
EMR’14, Coimbra, June 201415
« EMR and IBC of an Electric Vehicle »
- Maximum Control Structure -
Maximum Control Structure : • inversion of each element step-by-step (4 controllers and 1 strategy algorithm)
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
KD=f(Pdem, SoCbat, SoCsc, Vbat, Vsc)
0 100 200 300 400 500 6000
5
10
15
20
25
30
35
40
45
Vel
ocid
ade
[km
/h]
v(t)
– Driving Cycle profile;
EMR’14CoimbraJune 2014
Summer School EMR’14“Energetic Macroscopic Representation”
« Management Strategy Definition »
EMR’14, Coimbra, June 201417
« EMR and IBC of an Electric Vehicle »
- Strategy Definition -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
REMEMBER:OBJECTIVE ⇒⇒⇒⇒ HIERARCHICAL STRUCTURE .
EMR’14, Coimbra, June 201418
« EMR and IBC of an Electric Vehicle »
- Strategy Definition -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
Original EMR.
Equivalent EMR for EMS definition.
EMR’14, Coimbra, June 201419
« EMR and IBC of an Electric Vehicle »
- Strategy Definition -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
A. STRATEGY LEVEL.
EMR’14, Coimbra, June 201420
« EMR and IBC of an Electric Vehicle »
- Strategy Definition -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
B. DECISION LEVEL.
DECISION Linear Programing
One-dimensional Problem
Two-dimensionalProblem
KD
EMR’14, Coimbra, June 201421
« EMR and IBC of an Electric Vehicle »
- Strategy Definition -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
B. DECISION LEVEL.
vSC
iSC
SC
ibat
vbat
bat
SC Bat.
STRATEGY LEVEL
EMR’14CoimbraJune 2014
Summer School EMR’14“Energetic Macroscopic Representation”
« Simulation Results »
EMR’14, Coimbra, June 201423
« EMR and IBC of an Electric Vehicle »
- Simulation Results -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
DECISION LEVEL.
STRATEGY LEVEL.
EMS.
EMR’14, Coimbra, June 201424
« EMR and IBC of an Electric Vehicle »
- Simulation Results -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
24
0 50 100 150 2000
50
Spe
ed [k
m/h]
ref.
Tazzari
0 50 100 150 200-505
1015
Pow
er [k
W]
Pdem
PBat
PSC
0 50 100 150 20060
80
100
Voltage
[V]
VdcLink-ref
VdcLink
0 50 100 150 2000
50
100
I Bat [A
]
Ibat-ref
Ibat
0 50 100 150 200-200
0
200
I SC [A
]
ISC-ref
ISC
0 50 100 150 200
50
100
SoC
[%]
Time [s]
SoCbat
SoCSC
EMR’14CoimbraJune 2014
Summer School EMR’14“Energetic Macroscopic Representation”
« Conclusions »
EMR’14, Coimbra, June 201426
« EMR and IBC of an Electric Vehicle »
- Conclusions -
« EMR AND ENERGY MANAGEMENT OF A HYBRID ESS OF AN ELECTRIC VEHICLE »
• The new hybrid power system is addressed.
• EMR and its control is developed and presented.
• Management Strategy is structured based on EMR.
• Management Strategy: strategic level + decision level:
– to determine the best power sharing solution under strategi corientations.
• The results demonstrate that the EMS may be used effectively .
The approach fulfills the main objectives of hybridization:
– Reducing the battery requirements ;– Controlling the SCs to support power peaks/store regenerat ive
energy .
As main results:– Batteries’ lifetime improvement;– More power for accelerations/better usage of regenerative energy.
top related