Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1991-04-02
1993-05-18
Voeltz, Emanuel T.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
363 71, 363 98, 363132, H02M 112
Patent
active
052126293
ABSTRACT:
Apparatus and method for eliminating or reducing to a filterable minimum the relevant harmonic frequencies which otherwise occur in an AC output voltage from a multi-phase static inverter circuit operating from a symmetrically notched source of DC input voltage. The inverter circuit is electronically switched and controlled to provide notched phase voltages with the notch positioning being optimally variably placed in the periodically occurring waveform and with a controlled interval of the notch for controlling the fundamental component independently of the source voltage, while substantially eliminating the 11th and 13th harmonic components of the fundamental output voltage. A harmonic neutralizing transformer circuit includes paired wye, delta, or wye-delta configurations is connected between the inverter circuit and a composite output transformer circuit which couples or connects paired windings of the harmonic neutralizing circuit. This provides an output voltage with cancelled remaining harmonics immediately adjacent to odd number multiples of six times the fundamental frequency.
REFERENCES:
patent: 3324374 (1967-06-01), Corey
patent: 3477010 (1969-11-01), VeNard
patent: 3614590 (1971-10-01), Kernick
patent: 3638094 (1972-01-01), VeNard
patent: 3648149 (1972-03-01), Brown et al.
patent: 3657633 (1972-04-01), Urish
patent: 3671846 (1972-06-01), Corey
patent: 3739253 (1973-06-01), Humphrey et al.
patent: 3781635 (1973-12-01), Sauer
patent: 3792286 (1974-02-01), Meier
patent: 3838331 (1974-09-01), Jensen
patent: 3876923 (1975-04-01), Humphrey et al.
patent: 3979662 (1976-09-01), Klein
patent: 4032832 (1977-06-01), Miller
patent: 4052658 (1977-10-01), Hucker
patent: 4063144 (1977-12-01), Hucker et al.
patent: 4153930 (1979-05-01), Marceau et al.
patent: 4204264 (1980-05-01), Lipman
patent: 4225914 (1980-09-01), Hirata et al.
patent: 4357655 (1982-11-01), Beck
patent: 4554501 (1985-11-01), Baker
patent: 4565953 (1986-01-01), Espelage
patent: 4685043 (1987-08-01), Mehnert
patent: 4763059 (1988-08-01), Espelage et al.
patent: 4797801 (1989-01-01), Furuhashi
patent: 4847745 (1989-07-01), Shekhawat
patent: 4851723 (1989-07-01), Barnhardt
patent: 4870557 (1989-09-01), Stacey
patent: 4931919 (1990-06-01), Nguyen et al.
patent: 4937720 (1990-06-01), Kirchberg
patent: 4939441 (1990-07-01), Dhyanchand
patent: 4956598 (1990-09-01), Recker et al.
patent: 4961130 (1990-10-01), Kirchberg, Jr.
patent: 4967334 (1990-10-01), Cook et al.
patent: 4975822 (1990-12-01), Lipman
Sterrett Jeffrey
Voeltz Emanuel T.
Yatsko Michael S.
LandOfFree
Voltage and harmonic control of a multi-pole inverter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage and harmonic control of a multi-pole inverter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage and harmonic control of a multi-pole inverter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-808264