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AssigneeScience Bureau Inc.
InventorsSergey Antonov, Alexei I Antonov
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Present invention belongs to the field of inventers, motor controllers and pulse modulated waveform generation methods and circuits. More specifically it belongs to such methods and circuits utilizing fundamental vectors. This invention features better and more efficient fundamental vectors. The proposed method offers reduced losses, increased efficiency and longer life time of inverters and motor controllers. Better approximation of a three-phase voltage waveform approaching the ideal one is a significant advantage of the proposed method. Another advantage is an easy decomposition of any point of an ideal sinusoidal voltage waveform into the fundamental vectors. This invention is particularly useful for a vector control of asynchronous AC motors.
A device comprising:
A method to control six bridge-connected switching elements, so that a supplied from an external source DC voltage is converted into an approximately instant state of a three-phase AC voltage as defined by an electrical angle, by turning on and off the switching elements in order to create an emulation sequence comprising at least two of the following eleven switching patterns:
A programming code stored in memory and executed on a processor, controlling six bridge-connected switching elements so that a supplied from an external source DC voltage is converted into an approximately instant state of a three-phase AC voltage as defined by an electrical angle, comprising:
Dependencies are inferred from the claim text.