Siemens Aktiengesellschaft

Siemens Industry, Inc.

James A Buckey

Shelby Chun

Ralph Flaugher

Paolo Malapelle

Narendranath Nagarur

Alan Wright

Grigoriy Puchkarev

Ralph R Flaugher

A drive system () includes a plurality of power cells () supplying power to one or more output phases (A, B, C), each power cell () having multiple switching devices (-) incorporating semiconductor switches, and a control system () in communication with the plurality of power cells () and controlling operation of the plurality of power cells (), wherein the control system () includes a system on chip () with one or more central processing units () and a field programmable gate array () in communication with the one or more central processing units ().

Control system for medium voltage variable frequency drive

Systems and methods in accordance with this invention provide a power converter including an input signal terminal, a first output signal at a first output signal terminal, and a controller. The controller is adapted to switch the first output signal from a first value to a second value, measure a voltage at the input signal terminal as a function of time, set a flag to a first flag value if the measured voltage falls below a predetermined value within a first predetermined time interval after the first output signal has been switched from the first value to the second value, otherwise set the flag to a second flag value, and save the flag in a memory. Numerous other aspects are also provided.

Apparatus and methods for input protection for power converters

A power supply includes multiple power cells and a master control system in communication with each of the power cells. The master controller includes a control processor configured to receive power cell control information and a host in communication with the control processor wherein the host is configured to receive command and status information.

Master controller containing a control processor configured to receive power cell control information and a host processor configured to receive command and status information

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Lower Burrell, PA, United States of America

James A Buckey