Viorel Trifa's Home Page - Research topics

RESEARCH ACTIVITY

A. RESEARCH TOPICS

Designing and construction of VR and PM stepping motors and SR motors;

Designing PWM inverters for low power a.c. and stepping motors;

Designing various transducers for electrical drives: incremental encoders, sensorless back e.m.f. transducers, capacitive transducers for step detection;

Experimenting various algorithms to control the electrical drives, such as: PLL, Robust control, Vector control based on the field-orientation principles;

Modelling and simulation of vector & robust controlled electrical drives;

Implementing PC-based control structures for electrical drives using I/O interface modules and DSPs;

Fuzzy and Neuro Positioning Controllers;

SR motor based electrical drives;

Artificial intelligence impact to Electrical drives

B. LIST OF MAIN RESEARCH CONTRACT TITLES, since 1990

Echipament de comanda si pozitionare a sistemului de antena. UM 0512 Constanta, 1995.

Proiectarea si dezvoltarea motorului pas cu pas hibrid modularizat. MCT, 1995.

Cercetarea, proiectarea si executia unui echipament de pozitionare cu servomotor cu reluctanta autocomutat. CNCSIS, 1995-1997.

Convertoare ecologice de c.a.-c.c. prin modulare in durata a impulsurilor in gama de puteri 0-3kW. CNCSIS, 1996-1997.

Implementarea comenzii in timp real a servomotorului cu reluctanta autocomutat cu alimentare ecologica din reteaua de c.a. CNCSIS, 1998-2000.

Cercetari privind aplicarea metodelor inteligentei artificiale pentru proiectarea, modelarea, simularea si controlul actionarilor cu motoare electrice autocomutate. CNCSIS, 2000-2002.

Manufacturing of a 6/4-type Switched Reluctance Motor – Experimental model. Ben-Gurion University, Beer-Sheva, Israel, 2001.

Motor pas cu pas cu echipamentul electronic aferent pentru alimentarea pas cu pas la stantare. S.C. Romflex S.A. Otelul Rosu, 2002.

Cercetari privind dezvoltarea tehnicilor computerizate de screening citologic si asistare a diagnosticului histopatologic. CNCSIS, 2004-2006.

Cercetari privind implementarea unui laborator virtual pentru motoare electrice reluctante folosind reteaua Internet. CNCSIS, 2004-2006.

Cresterea eficientei conversiei electro-mecanice a energiei prin masini electrice cu excitatie hibrida (acronim HYBRID). CEEX - ICPE Bucharest, 2006-2008.