Simultaneous Combined Optimal Design and Control Formulation for Aircraft Hybrid-Electric Propulsion Systems

2020 ◽  
pp. 1-10
Author(s):  
Sai Krishna Sumanth Nakka ◽  
Michael J. Alexander-Ramos
Keyword(s):  
Optimal Design ◽  
Electric Propulsion ◽  
Propulsion Systems ◽  
Hybrid Electric ◽  
And Control ◽  
Optimal Design And Control

scholarly journals Comparison of Diesel-Electric with Hybrid-Electric Propulsion System Safety Using System-Theoretic Process Analysis

2019 ◽  
Author(s):  
V Bolbot ◽  
G Theotokatos ◽  
E Boulougouris ◽  
D Vassalos
Keyword(s):  
Electric Propulsion ◽  
Process Analysis ◽  
Hazard Analysis ◽  
Propulsion System ◽  
Cruise Ship ◽  
Propulsion Systems ◽  
Electric Propulsion System ◽  
Automation And Control ◽  
Hybrid Electric ◽  
And Control

Cruise ship industry is rapidly developing, with both the vessels size and number constantly growing up, which renders ensuring passengers, crew and ship safety a paramount necessity. Collision, grounding and fire are among the most frequent accidents on cruise ships with high consequences. In this study, a hazard analysis of diesel-electric and hybrid-electric propulsion system is undertaken using System-Theoretic Process Analysis (STPA). The results demonstrate significant increase in potential hazardous scenarios due to failures in automation and control systems, leading to fire and a higher number of scenarios leading to propulsion and power loss in hybrid-electric propulsion systems than on a conventional cruise-ship propulsion system. Results also demonstrate that STPA enhancement is required to compare the risk of two propulsion systems.

scholarly journals A Survey on Through-the-Road Hybrid Electric Vehicles

Electronics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 879
Author(s):  
Gianfranco Rizzo ◽  
Shayesteh Naghinajad ◽  
Francesco Tiano ◽  
Matteo Marino
Keyword(s):  
Electric Vehicles ◽  
Electric Propulsion ◽  
Hybrid Electric Vehicles ◽  
Heat Engine ◽  
Propulsion Systems ◽  
Hybrid Propulsion ◽  
The Road ◽  
Hybrid Electric ◽  
And Control ◽  
Driving Torque

Hybrid Electric Vehicles (HEVs) can be divided into three categories according to how the two propulsion systems (the thermal and the electric ones) supply the driving torque to the vehicle. When the torque is supplied only by an electric propulsion system, while the heat engine takes care of generating the electricity needed to operate the system, it is called a hybrid-series. Conversely, when both propulsion systems provide torque, the vehicle is identified with parallel hybrid wording. Among the parallel hybrids there is a particular configuration called Through-the-Road (TTR). In this configuration, the two propulsion systems are not mechanically connected to each other, but it is precisely the road that allows hybrid propulsion. This architecture, dating back to the early twentieth century, is still used by several manufacturers and carries with it peculiar configurations and control methods. It is also a configuration that fits well with the transformation of conventional vehicles into a hybrid. The paper presents a survey of the TTR HEV solution, evidencing applications, potentialities and limits.

A Classified Bibliography of Research on Optimal Design and Control of Queues

1977 ◽  
Vol 25 (2) ◽  
pp. 219-232 ◽  
Author(s):  
Thomas B. Crabill ◽  
Donald Gross ◽  
Michael J. Magazine
Keyword(s):  
Optimal Design ◽  
Control Of Queues ◽  
And Control ◽  
Optimal Design And Control
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