mihai cistelecan

sc icpe-me s.a., bucharest, .

E-mail: trimite un mesaj.

Pagina web personala: http://www.geocities.com/m_cistelecan

Nascut(a) in: 1947

Interese: masini electrice, actionari electrice

Detalii:
Proiectare optimala (programare neliniara, costul real al masinilor electrice, restrictii legate de performante si limitari dimensionale)

Motoare cu randament ridicat (eff-2, eff-1, cu considerarea prescriptiilor NEMA si CEMEP)

Motoare cu performante de pornire deosebite (refulare in colivii duble, multiple)

Infasurari speciale pentru masini electrice (una sau mai multe viteze, armonice spatiale reduse, sinteza infasurarilor la performante impuse)

Materiale magnetice (table electrotehnice ccu sau fara siliciu, magneti permanenti)

Masini sincrone (masini cu excitatie hibrida, generatoare te tensiune constanta la turatie variabila, excitatie biderectionala)
Alternatoare auto hibride

Motoare sincrone cu magneti permanenti si capacitate de autopornire cu alimentare de la retea

Details:
Design optimisation (non-linear programming, real cost of the electrical machine, constraints regarding the performances and dimension limitations)

High efficiency motors (design of the eff-2, eff-1 induction motors, HE-motors taking into account the newest prescription of NEMA, CEMEP)

Motors with special starting performance (double, multiple cage, the skin effect numerical calculation in continuous or separate bars of the cage)

Special windings (single speed, multiple speed pole changing, low space harmonic content; Fourier analysis of the actual magneto-motive force in the air gap of the a.c. machines starting from the current distribution; synthesis of the a.c windings with imposed performances regarding the space harmonic content; motors with combined star-delta connections)

Magnetic materials (performances of the existing silicon alloy electrical sheet, dependence between the iron losses and magnetizing capacity of the sheets, the influence of the sheets quality on the electrical machines performance)

Synchronous machines

Hybride (dual excited permanent magnet, field coils) generators (generators working in the large speed range, having permanent magnets and field coils supplied by bi-directional electronic regulator)

Auto-car dual excited alternators (claw-pole type, combined axial magnetized permanent magnets and field coil)

Permanent magnet synchronous motors with line start capability (combined cage/permanent magnet motor; starting as induction motor, running as synchronous motor)

Permanent magnet brushless motor (BLDC or BLAC), with embedded permanent magnets and claw-poles modular construction

Computation of the magnetic circuit containing permanent magnets (main field, leakage field, establishing of the running point of the magnet from the mmf and flux density point of view; lumped parameter method)



Current research works:

Special single layer windings for two speeds motors (PAM motors) with improved performance
Auto-car alternators, hybride excited, 14V, 120 Amp (permanent magnets and field coil)
High efficiency, low voltage, general purpose induction motors
Permanent magnet synchronous motors with line start capability
Claw pole, modular construction brushless permanent magnet a.c. motor