Results 291 to 300 of about 632,931 (350)
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Propulsion systems for electric cars
IEEE Transactions on Vehicular Technology, 1974Proper selection of the propulsion system to meet the requirements of an electric passenger vehicle is of prime importance. Choice may be made among alternating current, direct current, or combined systems. Each approach can be implemented by utilizing various control techniques and power elements.
B. Berman, G.H. Gelb
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2019 International Conference on Electrotechnical Complexes and Systems (ICOECS), 2019
The paper presents an analysis and forecast of the development of hybrid electric and full-electric propulsion systems for an aircraft of different types, key technologies necessary to develop them.
A. Varyukhin +4 more
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The paper presents an analysis and forecast of the development of hybrid electric and full-electric propulsion systems for an aircraft of different types, key technologies necessary to develop them.
A. Varyukhin +4 more
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Direct-Conversion Electric Propulsion System
2018 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM), 2018The use of an AC electric drive with a frequency converter is a common practice in the world shipbuilding industry. The use of alternating current allows one to reduce the dimensions of the engine and improve the operational characteristics of the system as a whole which led to the almost complete replacement of DC systems in the design of new ships ...
E. Koptjaev, E. Popkov
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Advance Biowaste Electric Propulsion Systems
Journal of Engineering for Industry, 1970This paper studies the vapor biowaste electric propulsion systems and the impact of the evolving advance life support oxygen recovery cycles and subsystem trade-offs on the biowaste expendable composition and mass balances. The results of a computer analysis of the potential performance of three representative compositions used as propellants in ...
M. Goodman, M. M. Yakut
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2003
As we have seen in previous chapters, chemical propulsion systems are limited in performance by the energy stored in their propellants. This limitation can be overcome by using electric power available on the spacecraft (e.g., from solar arrays, nuclear reactors or beamed energy sources such as laser light or microwave energy transmitted to the ...
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As we have seen in previous chapters, chemical propulsion systems are limited in performance by the energy stored in their propellants. This limitation can be overcome by using electric power available on the spacecraft (e.g., from solar arrays, nuclear reactors or beamed energy sources such as laser light or microwave energy transmitted to the ...
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Electric and Hybrid-Electric Propulsion Systems
2013While in conventional ICE-based vehicles the energy carrier is a fossil fuel, electric and hybrid-electric propulsion systems are characterized by the presence of an electrochemical or electrostatic energy storage system. Moreover, at least one electric motor is responsible — totally or partially — for the vehicle propulsion.
Lino Guzzella, Antonio Sciarretta
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2018 AIAA/IEEE Electric Aircraft Technologies Symposium (EATS), 2018
Hybrid-electric propulsion system is an enabling technology to make the aircrafts more fuel-saving, quieter, and lower carbide emission. In this paper, a megawatt-scale power converter based on a hybrid three-level active neutral-point-clamped (3L-ANPC ...
Di Zhang +4 more
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Hybrid-electric propulsion system is an enabling technology to make the aircrafts more fuel-saving, quieter, and lower carbide emission. In this paper, a megawatt-scale power converter based on a hybrid three-level active neutral-point-clamped (3L-ANPC ...
Di Zhang +4 more
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A History of Electric Ship Propulsion Systems [History]
IEEE Industry Applications Magazine, 2020This article provides an electric ship history that starts during the early 1800s with the manual propulsion of small boats and concludes with modern electric vessels.
D. Paul
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Solar electric propulsion system evaluation
Journal of Spacecraft and Rockets, 1970Solar electric propulsion system performance consisting of thrustors with thrust vector aligning actuators, switching network and flight type power ...
E. V. PAWLIK +3 more
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Next generation electric drives for HEV/EV propulsion systems: Technology, trends and challenges
Renewable & Sustainable Energy Reviews, 2019In recent decades, several factors such as environmental protection, fossil fuel scarcity, climate change and pollution have driven the research and development of a more clean and sustainable transport. In this context, several agencies and associations,
I. López +4 more
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