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SELF EXCITED INDUCTION GENERATORS FOR BRAKE VAN APPLICATIONS

SELF EXCITED INDUCTION GENERATORS FOR BRAKE VAN APPLICATIONS,Dawit Seyoum,Peter Wolfs

SELF EXCITED INDUCTION GENERATORS FOR BRAKE VAN APPLICATIONS   (Citations: 2)
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The sugar cane industry uses brake vans, coupled to the end of cane trains, to produce a given constant braking force to improve the cane bin ride dynamics and to assist the braking of trains. Unlike other railway vehicles, cane bins often have neither brakes or suspensions. Currently brake vans operate using compressed air, supplied by an on board compressor, which activates a brake calliper, which clamps a ventilated disc rotor on each of the four wheel sets. This system needs maintenance due to wear on the brake pads and rotors. An electrical braking implemented using self-excited induction generator is proposed. With the application of electrical braking energy is dissipated is in well ventilated resistors. Maintenance is further reduced by a brushless design.
Published in 2004.
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    • ...However, several important issues must be addressed in the design of the electrical braking system [2]...
    • ...This means that although the capacitive self-excitation of an induction machine is a simple and viable solution, an additional mechanism has to be added in order to avoid demagnetization and to accept the full scale of the output voltage [2]...
    • ...With the application of electrical braking, the kinetic energy is converted to electrical energy then dissipated as heat energy in well ventilated resistors as shown in Figure 1 [2]...
    • ...Figure 1 Electrical braking system using an induction generator (adapted from [2])...
    • ...A mathematical model of an induction generator [2] has been used to validate the performance of the fuzzy logic control scheme proposed in this paper...

    N. Hosseinzadehet al. Fuzzy Logic Control of an Induction Generator as an Electrical Brake

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