Buck/boost method of voltage regulation for a permanent magnet generator (PMG)
AssigneeHamilton Sunstrand Corporation
InventorsMahesh J. Shah, George H. Seffernick
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Abstract
The output voltage generated by permanent magnet generator (PMG) is regulated by controlling a buck/boost voltage applied to selected sub-coils within the PMG. The PMG includes a number of stator coils that are each divided into a number of sub-coils. A buck/boost voltage source generates a buck/boost voltage, and a controller connected to monitor the output voltage generated by the PMG selectively applies the buck/boost voltage to selected sub-coils based on the monitored output voltage. In this way, the controller is able to regulate the output voltage by selectively controlling the buck/boost voltage applied to the selected sub-coils.
Claims12
A permanent magnet generator (PMG) system for regulating an output voltage, the system comprising:
- a permanent magnet generator (PMG), comprising:
- a rotor;
- a stator having stator teeth;
- and
- stator coils wrapped around the stator teeth and divided into sub-coils, wherein a first set of sub-coils is connected in series to generate the output voltage;
- a buck/boost voltage source for producing a buck/boost voltage;
- and
- a controller connected to monitor the output voltage and to apply the buck/boost voltage to selected sub-coils not connected to the first set of sub-coils based on the monitored output voltage.
A permanent magnet generator system, the system comprising:
- a permanent magnet generator that includes a number of stator coils divided into sub-coils, wherein selected sub-coils are connected to generate an output voltage;
- and
- a controller connected to monitor the output voltage generated by the PMG and to apply a buck/boost voltage to sub-coils that are not connected to generate the output voltage to either increase or decrease the output voltage based on the monitored output voltage.
Dependencies are inferred from the claim text.