Electricity: single generator systems – Automatic control of generator or driving means – Electrical conditions in circuit other than that of...
Reexamination Certificate
2006-01-31
2006-01-31
Ponomarenko, Nicholas (Department: 2834)
Electricity: single generator systems
Automatic control of generator or driving means
Electrical conditions in circuit other than that of...
C322S020000, C290S04000F, C361S013000, C361S001000
Reexamination Certificate
active
06992466
ABSTRACT:
An apparatus for the improvement of AC waveform comprising means for applying a demand input waveform at an input of a circuit for power conditioning (including an inverter PWMVC or BBHCC) that is operable to provide an output waveform at an output; a feedback loop between the input and output, the feedback loop including means for sampling the output waveform (ADC1), means for subtracting a required waveform (RW) from the output waveform to produce an error waveform, means for processing the error waveform in a pre-defined manner to produce a processed error waveform (Clip1, Disc1, Att1), means for adding or subtracting the processed error waveform from Th. demand waveform to produce a revised demand waveform, and means for applying the revised demand waveform to the input of the power conditioning circuit at a subsequent time as an input demand waveform to produce a new AC output waveform at the output.
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Chadwick David
Harris Martyn R.
Lyons John A.
Mortimer Jeremy
Bowman Power Group Ltd.
Ponomarenko Nicholas
Price Heneveld Cooper DeWitt & Litton LLP
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