Power electronics technologies are increasingly being used in aircraft to reduce operating costs and fuel usage. This trend toward "More Electric Aircraft" uses electric power instead of hydraulic or mechanical systems to control aircraft subsystems. Power electronics converters are used to manage electrical power on aircraft, providing benefits like improved efficiency, reduced weight, and lower maintenance costs. As aircraft systems require more electric power, power electronics will continue to play an important role in enabling advances in aircraft design and performance.

1. Advancements in Power Electronics technologies h
ave been used widely in the aircraft industry.
POWER ELECTRONICS IN
AIRCRAFTS

2. Introduction
• In the competitive world of airline economics, where low cost carriers are driving d
awn profit margins on airline seat miles, techniques for reducing the direct operati
ng costs of aircraft are in great demand
• In effort to meet this demand, the aircraft manufacturing industry is placing great
er emphasis on the use of technology, which can influence maintenance costs and
fuel usage.
• There is a general move in the aircrafts industry to increase the amount of electric
ally powered equipments on future aircraft.
• This trend is referred to as the “More Electric Aircraft”.
• It assumes using electrical energy instead of hydraulic, pneumatic and mechanical
means to power virtually all aircraft subsystem including flight control actuation, e
nvironmental control system and utility function. The concept offers advantages of
reduced overall aircraft weight, reduced need for ground support equipment and
maintenance and increased reliability
• Many aircraft power systems are now operating with a variable frequency over a t
ypical range of 360 Hz to 800 Hz.

3. Introduction cont..
Distribution voltages for an aircraft system can be classified as:
Nominal 115/200 V rms and 230/400 V rms a
c, both one phase and three phase, over varia
ble frequency range.
Nominal 14, 28 and 42 V DC.
High DC voltage which could be suitable for u
se with an electric actuator (or other) aircraft l
oads.

4. Simple Idea:

5. USE OF POWER ELECTRONICS:

6. USE OF POWER ELECTRONICS:

7. POWER ELECTRONICS CONVERTER
USAGE IN AIRCRAFTS:

8. USE OF POWER ELECTRONICS:

9. Advantages:
• Improve power system efficiency
• Improve Weight/Volume
• Reduce Total Cost
• Enhance Safety
• Improve Thermal Efficiency
• Improve Reliability
• Improve Maintainability
• Increase Functionality
• Cost Effective Rapid Technological Insertion
• Green Systems

10. Interdisciplinary Technology:
Power
Electronics
Analog & Digital
Electronics
CAD &
Simulation
Power
Semiconductor
Devices
Control Theory Converter
Circuits
Power
System Electrical
Machines
Microcomputer
ASIC circuits

11. Conclusion:
• More-Electric-Airplanes are the industry trend.
• Power in Aircraft is an enabler for advances in future airplane
system design, operation and performance.
• This technology is enabler for energy generation, storage &
conversion systems and technologies.
• Power Electronics contributes to lower operating costs and
reduces fuel use, emissions and noise.
• Power Electronics, Intelligent Power Systems, and
alternative sources play a significant role for future Aircraft
System

13. References:
• http://ieeexplore.ieee.org/xpl/mostRece
ntIssue.jsp?punumber=6255
• http://www.cleansky.eu/green-regional-
aircraft-gra
• http://protorit.blogspot.com/2013/02/p
ower-electronics-applications.html
• http://cdn.intechopen.com/pdfs/28815/
InTech-Power_electronics_application_f
or_more_electric_aircraft.pdf
• https://en.wikipedia.org/wiki/Electric_air
craft