Title :
High frequency isolation in standby power supplies which compensate load harmonic currents
Author :
John, Vinod ; Mohan, Ned ; Persson, Eric ; Nilssen, Robert
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
High frequency isolation in standby power supplies helps to achieve a high power density. A system using a high frequency AC link, utilizing a cycloconverter, with bilateral power flow is studied. The effect of using a high frequency transformer is evaluated and considerations are discussed for implementing such a system. This standby power supply compensates for load harmonic currents under normal circumstances when the utility is within a nominal voltage range
Keywords :
compensation; cycloconvertors; emergency power supply; high-frequency transformers; load flow; power convertors; power supplies to apparatus; power system harmonics; power transformers; pulse width modulation; switching circuits; HF isolation; PWM; bilateral power flow; compensation; cycloconverter; high frequency AC link; high frequency transformer; load harmonic currents; nominal voltage range; power density; standby power supplies; Active filters; Emergency power supplies; Frequency conversion; Frequency synthesizers; Load flow; Power harmonic filters; Power system harmonics; Pulse width modulation inverters; Switches; Voltage;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.339248
