Skip to content Go to main navigation Go to language selector
Saab Global

Master Thesis Multi-Purpose Electro-Hydraulic Converter for More Electrical Power

Linköping, Sweden
Closing date: 30 November 2023

In the future more electical aircraft is needed. Would you like to be part of the journey to find out how hydraulic and electrical systems can interact in the future?

Your role


The aircraft of the future need more electrical power to mainly supply power consuming systems. There is also a need to make the emergency and reserve hydraulic pump more efficient in aircraft with a common pump to save weight and costs. Also, the low total efficiency of conventional hydraulic systems in an aircraft context is not acceptable due to the weight and cost of fuel.

Description of the master thesis

A common reversible electro-hydraulic converter fed from the hydraulic system can meet both of these needs. The converter enables variable speed control, power-on-demand, and new system architectures with more flexible control.

The concept is well in line with the criteria that characterize a modern supply system in aircraft with requirements for a high degree of utilization in a number of operating modes. The electro-hydraulic converter also saves on the number of system components. The central question, however, is whether an electro-hydraulic converter is the way forward in terms of weight compared to a larger main generator?

Working steps:

  • Study of existing equivalent electro-hydraulic converter in mobile hydraulics today at leading manufacturers and re-scale system weight to an aviation context.
  • Develop a system architecture
  • Develop a simulation model

Main Deliverables:

The main deliverables of the project include:

  • Final project report and presentation comprising description of project, literature review, comparative analysis of different designs and final suggestions.
  • A system architecture
  • A simulation model

Your profile

This Master Thesis is suitable for 1-2 with interest in hydraulic and electrical systems. Have knowledge in control theory, electrical, mechanical and fluid systems.

You are at the end of your master program in, for example, aerospace, technical physics and mechanical engineering and about to start your Master Thesis work for 30 HP.

This position requires that you pass a security vetting based on the current regulations around/of security protection. For positions requiring security clearance additional obligations on citizenship may apply.

What you will be a part of

The Aeronautics business area is an innovative supplier of world-class aircraft systems, advanced aerostructures, and a wide range of support solutions within civil and military aviation. The business area researches, develops, and produces military aviation systems. We are building for the future through research and studies into innovative flight systems and the further development of our products. Read more about us here.

Contact information

Magnus Landberg, Master Thesis Supervisor

073-418 57 20

Erik Agerbjörk, Master Thesis Supervisor

073-418 81 49

Saab is a company with a strong people-orientation. We offer a friendly work environment where we support and help each other to be at our best. Continuous learning, career & talent development and employee well-being are examples of areas where we always put the strongest effort to offer great opportunities.