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ŠKVARČ, J., KUŽELIČKI, J., ŠPACAPAN, I.
ELECTRIC TRACTION SYSTEM FOR INNOVATIVE CONCEPTS OF URBAN MOBILITY
KOMUNALNA ENERGETIKA / POWER ENGINERING, 27
Car producers are intesively developing electric vehicles as an alternative to current urban mobility solutions for city centers. Letrika d.d. is offering an optimized electric traction system to activelly participate in this growing market sector. It is targeted to usage on heavy quadricycles (L7e category) or small cars of category M1. The system can be used with battery voltages under 60 V to take advantage of less demanding homologation standards. Traction is implemented with three-phase induction motor with squirrel cage rotor, specially optimized for this type of applications. Controller power stage is based on new inovative technology developed by Letrika. Innovative control algorithms are capable of delivering higher mechanical power at higher motor speeds by using a special algorithm to increase motor phase voltage. System is additionaly equipped with graphical display and programming console.

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