Honeywell International Inc.

Parsa Mirmobin

Cristian E Anghel

Ming Xu

Zhenning Liu

Randy Fuller

Jens Gehrke

Guangjun Liu

Andrew J Brackenbury

Gordon Beatty

A power system for a vehicle may comprise an electric machine attached to an engine of the vehicle. The electric machine may comprise only one stator core; a stator main winding wound on the one stator core; a stator exciter winding wound on the one stator core. The stator main winding and the stator exciter winding may be magnetically independent from one another even though magnetic-field-isolation material is not interposed between the stator main winding and the stator exciter winding.

Compact starter-generator with common core for main and exciter winding

The mechanical output power of a turbine engine can be electrically boosted by using a power control system which may include a power source, an electric machine, a prime mover coupled to the electric machine, and a power control module coupled to the power source and the electric machine. The power control module may be configured to operate the electric machine between a motoring mode driving a mechanical load and a generator mode supplying power to an electrical load at speeds normally associated with generating modes only.

Electric boost of turbine engine output power and power control system

A multi-sage controlled frequency generator is described that has a low size, weight and cost. The new generator requires an electronic controller that requires only 25% of the total generated power (100%) when the generator shaft speed varies by +/&#x2212;25% around its synchronous speed. The shaft driving the generator in the direct-drive controlled frequency generator may be moved at a variable speed. The output frequency of the generator may be controlled by electrically controlling the frequency of the first stator stage and by selecting the control frequency, the number of poles, and the number of stages, such that the output of the last stage will be maintained constant at the desired grid frequency.

Multi-stage controlled frequency generator for direct-drive wind power

A high voltage direct current (HVDC) power distribution system comprises at least one power bus; at least one load conductor; and a hybrid contactor for interconnecting the at least one power bus and the at least one load conductor and through which inductive energy passes upon disconnection of the at least one load conductor from the at least one power bus. A first portion of the inductive energy passes through the hybrid contactor as an arc. A second portion of the inductive energy passes through the hybrid contactor as resistively dissipated heat.

Controlling arc energy in a hybrid high voltage DC contactor

A controlled frequency generating system (CFG) may be constructed with a main generator and an exciter driven by a common shaft. Excitation power may be provided from the common shaft; as distinct from prior-art systems which may require independent excitation power sources. While controlling the output voltage and frequency of the main generator, the bi-directional controller extracts power from a main generator output and may supply the extracted power to supplement excitation power when needed at certain rotational speeds. The controller may extract power from the exciter when, at other rotational speeds, the exciter produces excess power. The extracted excess power may be delivered to the output of the main generator to maintain a desired level of output power at a desired frequency, irrespective of speed of rotation of the CFG.

Self-excited controlled frequency generator system with bi-directional converter

A sensor system includes a sensor circuit and a plurality (e.g., N-number) of radio frequency identification (RFID) tags. The sensor circuit senses a physical parameter and supplies N-bits of digital sensor data. Each of the RFID tags at least selectively receives a digital sensor signal representative of one of the N-bits of digital sensor data and selectively transmits the digital sensor signal it received.

Sensor system including multiple radio frequency identification tags

A terminal assembly for rotating electrical machines, such as high speed starter-generators used for gas turbine engines in aircraft or other vehicles, is made from components that are readily assembled for ease of installation, maintenance, and repair. The terminal assembly includes a feedthrough body, an electrically conductive electrode that extends through the feedthrough body, and a hermetical seal that couples the electrode to the feedthrough body inner surface.

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Tucson, AZ, United States of America

Parsa Mirmobin