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Effective switching frequency multiplier inverter

Patent ·
OSTI ID:913581
A switching frequency multiplier inverter for low inductance machines that uses parallel connection of switches and each switch is independently controlled according to a pulse width modulation scheme. The effective switching frequency is multiplied by the number of switches connected in parallel while each individual switch operates within its limit of switching frequency. This technique can also be used for other power converters such as DC/DC, AC/DC converters.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC
Patent Number(s):
7,253,574
Application Number:
11/173,344
OSTI ID:
913581
Country of Publication:
United States
Language:
English

References (4)

SRM inverter topologies: a comparative evaluation journal January 1991
A super high speed PM motor drive system by a quasi-current source inverter journal January 1994
Which is better at a high power reactive power compensation system, high PWM frequency or multiple connection? conference January 1994
Series and parallel operation of hysteresis current-controlled PWM rectifiers journal July 1989

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