Transformerless, load adaptive speed controller
AssigneeYoutility, INC
InventorsRichard Shaun Welches, Daniel P. Hohm, Jian Wen, Kevin E LeRow, Richard Griessel, Thomas O'Reilly
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Abstract
The invention in the simplest form is an improved variable speed engine/generator set with an integrated power conditioning system and control method, used to generate high quality AC power with optimum fuel efficiency and reduced emissions. The variable speed generator control scheme allows for load adaptive speed control of engine and generator field. The transformerless power inverter topology and control method provides the necessary output frequency, voltage and/or current waveform regulation, harmonic distortion rejection, and provides for single phase, or unbalanced loading.
Claims8
An apparatus for generating AC power to a load, comprising:
- a variable speed energy generating device producing differing amounts of power at different speeds;
- a power conditioning system coupled to said variable speed energy generating device, wherein said power conditioning system calculates a speed command based on said AC power that controls said variable speed energy generating device;
- a regulator section coupled to said power conditioning system;
- a converter coupled to said regulator section and producing said AC power, wherein said converter couples said AC power to said load a speed sensor coupled to said variable speed energy generating device and an adaptive speed loop gain algorithm for detecting steady state speed errors.
Dependencies are inferred from the claim text.