lancement gamme zelio - ibt
TRANSCRIPT
Eco-efficiency
Schneider Electric 2 - Industrial – Eurotherm – Date
Why Eco-efficiency
Schneider Electric – Eurotherm - mai 2014
●As a premium brand, Eurotherm is keen on promoting value
added solutions for industrial customers.
●Today the key challenge for our customers is the cost of energy,
Oil, Gas and electricity. For instance the price of the Brent was
multiplied by 3 (from 25€ to more than 80€) during the past
twelve years and the trend recently is from mid 20’s and is now
late 40’s and rising
Schneider Electric 3 - Industrial – Eurotherm – Date
Why Eco-efficiency?
Schneider Electric – Eurotherm - mai 2014
●For instance a furnace will cost more in energy consumption
than its capital cost.
● Cost of a Glass Boosting 3MWatt = 300k€.
● Average consumption 2MWatt / 24h / 365days / 1year :
o Contract = 246.000€
o Power Consumption = 2.190.000€
o Cost of 1kWh = 10ct€
● If we save 10% on the Energy bill, the payback of the boosting
system will be less than 18 months.
●10% of Saving means 328.500€ of saving after 18 months
●The furnace will last more than 12 years :
What is Eco-efficiency ?
Schneider Electric 5 - Industrial – Eurotherm – Date
Our strategy for eco-efficiency
Schneider Electric – Eurotherm - mai 2014
●During the past years, the Power Applications Department has
developed new power management solutions on Boosting, Furnaces
and Bushing applications.
●The goal of these developments was to reduce the cost of ownership
through efficiency improvements and the capital cost through the
improvement of the power line design.
●Our strategy is based on
Power Factor and the THDI
(Harmonics) improvements
through the promotion of the
burst firing mode or the Load
Tap Changing instead of the
Phase Angle mode.
L T C : 1 e n r o u l e m e n t s
0
0 , 2
0 , 4
0 , 6
0 , 8
1
1 , 2
0 0 , 1 0 , 2 0 , 3 0 , 4 0 , 5 0 , 6 0 , 7 0 , 8 0 , 9 1
P u i s s a n c e
Ha
rm
on
iq
ue
s
H 3
H 5
H 7
H 9
H 1 1
H 1 3
H 1 5
H 1 7
H 1 9
Schneider Electric 6 - Industrial – Eurotherm – Date
Our strategy for eco-efficiency
Schneider Electric – Eurotherm - mai 2014
●The concept was validated on many applications where the heaters
are driven by a Thyristor in phase angle mode through a transformer.
●Bushing : The Thyristor drives a primary side of a transformer
and the secondary side is connected to the Bushing plate.
●Glass Boosting : Through a transformer, the Thyristor drives the
electrodes diving into the molten glass.
●Heat treatment and Vacuum furnaces : The Thyristor
controls the primary side of the transformer and the
secondary side is connected to the heating elements.
Schneider Electric 7 - Industrial – Eurotherm – Date
EPower : A revolution in the power management
• FLEXIBILITY : A unique product that
fits all the applications
• PEACE OF MIND: Reliability, an
efficient control of the process
• EFFICIENCY : Energy cost reduction
and optimisation of the owner cost
thanks to new functionalities :
• Burst Firing
• PLM (Predictive Load
Management)
Burst Firing and Eco-efficiency
Schneider Electric 9 - Industrial – Eurotherm – Date
Phase Angle mode
•In phase angle mode we cut the sinus voltage delivered by the grid.
•The energy delivered to the load depends on the delay : ∏ - θ.
•The Phase Angle mode impacts the Power factor.
•The Phase Angle mode generates harmonics
● The Phase Angle has an impact on the power factor
Schneider Electric 10 - Industrial – Eurotherm – Date
Burst Firing mode
•In Burst we consume the full sinus delivered by the grid.
•The energy delivered to the load depends on : Ton / (Ton + Toff)
•The burst mode doesn’t impact the Power factor
•The burst mode doesn't generate harmonics
• The Burst Firing mode has a no impact on the power factor
Schneider Electric 11 - Industrial – Eurotherm – Date
Power factor and Tan(fi)
•The phase angle firing mode has a direct impact on the power factor
and the tan(fi).
•The energy providers apply penalties when
FP < 0.93 or Tan(fi) > 0,4
•A process running in Phase angle mode needs to use capacitors
in order to improve the power factor and the Tan(fi).
● The Burst Firing mode has a no impact on the power factor
Current
Power
supply Power
supply
Load voltage (resistive) Load voltage (inductive)
Φ
Φ
Current
Φ
Schneider Electric 12 - Industrial – Eurotherm – Date
Impact on the efficiency
A Phase angle firing mode has an impact on the efficiency:
● Loss in transformer efficiency (Joules and Hysteresys losses)
● Integration of the capacitors losses (Power factor improvement).
● Heating of the Wires
● Reduction of the life-time of the installation
Current
Power
supply Power
supply
Load voltage (resistive) Load voltage (inductive)
Φ
Φ
Current
Φ
PLM and
Energy efficiency
Schneider Electric 14 - Industrial – Eurotherm – Date
PLM – Predicitive Load Management
● ENERGY EFFICIENCY
● Load sequencing
Energy where you need it
● Load sharing (power smoothing)
Energy when you need it
● Load shedding
Energy where and when you need it
● Energy counter
● Up to 64 zones
● AUTOMATIC CHOICE OF THE MASTER AND REDUNDANCY
• Reliability insured
Predictive Load
Management Module
Schneider Electric 15 - Industrial – Eurotherm – Date
PLM – Typical power demand
Energy where you need it but not when you need it • Still power demand peaks • The average power consumption is below the maximum power • The energy bill depends on the time, the season and your power contract
You are paying more
You are paying less
Schneider Electric 16 - Industrial – Eurotherm – Date
PLM : a revolutionary power management
Energy where you need it and when you need it
• The suppression of the power peaks demands enables to reduce the fixed part of your energy bill
• the dynamic modification of the power limitation enables to reduce the variable part of your energy bill
You are paying less
You are paying nothing more
Schneider Electric 17 - Industrial – Eurotherm – Date
PLM and Eco-efficiency
The firing synchronization of the different channels generates a smoothing of the
power consumption. This feature impacts favourably the global efficiency of the
process.
How ? : by reducing the heating losses in the electrical equipments , like cables,
TGBT, transformers…etc.
Load n°2 Load
n°1
SCR n°2 SCR n°1
U1
∆U
Uload
Schneider Electric 18 - Industrial – Eurotherm – Date
PLM and Eco-efficiency
Effectively, the heating losses in the resistive
components (cables, transformers…etc.) are
proportional to the square of the current :
•Pj1 = R x I2 x T
•Pj2 = R x (2I)2 x T/2 = 2 (R x I2 x T)
• => Pj2 = 2 x Pj1
Current
Load 1 Load 2
Imax/2
With PLM
Current
Load 1
Imax/2
Without PLM
Load 2
Imax
Why? : because it is better to consume at equivalent power, a current equal to ‘I’ during a ‘T’ period instead of a current equal to ‘2xI’ during a ‘T/2’ period .