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AssigneeRaven Technology, LLC
InventorsChristopher N. Tupper, Duncan G. Wood
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A single-pole type generator with low loss magnetic core is excited by a field coil that is part of a low loss series resonant circuit tuned to a desired AC power frequency, which may be frequencies such as 50 Hz or 60 Hz or 400 Hz. The series resonant circuit is excited at the resonant frequency. The resulting resonant behavior of the excitation circuit automatically provides the high driving voltages and sinusoidal energy storage patterns needed to efficiently modulate the magnetic field at the desired power frequency. This modulation of the excitation field is amplified by mechanical power from a rotating shaft and modulates the output current and voltage of a single phase output circuit of the single-pole type generator at that power frequency in a sinusoidal pattern thus delivering alternating current power without any requirement for further electronic rectification, commutation or processing. Design considerations critical to the implementation of a practical single-pole type generator suitable for this application are disclosed.
An apparatus for generating power frequency alternating current and voltage output from the rotation of a shaft, wherein power generation is generally independent of the speed of the shaft, the apparatus comprising a single-pole type generator stage coupled to a resonant circuit and couplable to the shaft, wherein the single-pole generator stage generates an output upon rotation of the shaft, the output, including a sinusoidal output voltage and an alternating output current, is excited by electrical currents in said resonant circuit, and wherein the resonant circuit itself is excited at the power frequency by use of resonant circuit techniques under supervision of a controller to generate the sinusoidal output voltage and alternating output current without rectification, commutation, or electronic processing of the output, wherein said single-pole type generator stage includes:
An apparatus for generating power frequency alternating current and voltage output from the rotation of a shaft, wherein power generation is generally independent of the speed of the shaft, the apparatus comprising a single-pole type generator stage coupled to a resonant circuit and couplable to the shaft, wherein the single-pole generator stage generates an output upon rotation of the shaft, the output, including a sinusoidal output voltage and an alternating output current, is excited by electrical currents in said resonant circuit, and wherein the resonant circuit itself is excited at the power frequency by use of resonant circuit techniques under supervision of a controller to generate the sinusoidal output voltage and alternating output current without electronic processing of the output to combine multiple phases, wherein the single-pole type generator stage includes:
Dependencies are inferred from the claim text.