Dynamic braking method proposes an advanced braking control on shaft of an asynchronous motor without dissipation of mechanical friction residual. Moreover, it allows the rotor to maintain mechanical braking torque during three seconds for an emergency braking, reliable and safe. Regarding overall traces of energy flow in an asynchronous motor, it specifies the ways of energy transfer and dissipation either by dynamic braking or by transfer to an electric network (regenerative). The first one has minor modification in the existing system and control panel of electromotor or electrical vehicle without touching motor structure.
The braking circuit is a direct current system in parallel with AC power supply network. Generally, a power control system is used to start asynchronous motor or to stop the ac motor operation and initiate the braking sequences. The electromagnetic field study orients our concepts and designs for a maximum performance of braking force by Maxwell modeling and Matlab analysis.
Moreover, we precise mechanical force transmission through a magnetic contactless gear box. Designing a platform for this concept, create a better understanding of the details by visualising electrical and mechanical behaviour in proposed system. The result forwards us to a conceptual design between electrical internal parameters and system geometries. Finally, the interfaces optimise our design and simulation by mechanical and thermodynamic parameters. In order to evaluate efficiency of system, we concern to different operation point and stability of conditions by manipulating mechanical and geometrical parameters.
| Date | 24 Feb 2016 |
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| Original language | French |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Kamal Al-Haddad (Supervisor) |
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Alizadeh, R. (Author),
Al-Haddad (Supervisor),
24 Feb 2016Student thesis: Master's thesis › Master in Engineering: Electrical Engineering