Title :
Optical Modulation for High Power Systems: Potential for Electromagnetic-Emission, Loss, and Stress Control by Switching Dynamics Variation of Power Semiconductor Devices
Author :
Mazumder, Sudip K. ; Sarkar, Tirthajyoti
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois, Chicago, IL
Abstract :
Dynamic control of electromagnetic-emission, efficiency, and stress of switching power systems using optically-modulated and galvanically isolated gate control of power semiconductor devices (PSDs) is outlined and experimentally demonstrated at a scaled power level. This is achieved by modulating the switching dynamics of a PSD using an optically triggered power transistor (OTPT), which controls the gate excitation of the PSD. An important aspect regarding scalability of the same concept towards higher power application is the controllability of the PSD onset delay (which can be optically modulated, and as demonstrated, in the proposed device concept) particularly for series/parallel connected device configurations for high voltage and current applications.
Keywords :
electromagnetic interference; optical modulation; power semiconductor devices; power systems; power transistors; dynamic control; electromagnetic-emission; galvanical isolated gate control; gate excitation; high power systems; loss control; onset delay controllability; optical modulation; optical triggered power transistor; power semiconductor devices; stress control; switching dynamics variation; switching power systems; Magnetic losses; Optical control; Optical losses; Optical modulation; Power semiconductor devices; Power semiconductor switches; Power system control; Power system dynamics; Power systems; Stress control;
Conference_Titel :
Energy 2030 Conference, 2008. ENERGY 2008. IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-2850-2
Electronic_ISBN :
978-1-4244-2851-9
DOI :
10.1109/ENERGY.2008.4781027
