Siemens Industry, Inc.

Robicon Corporation

Siemens Energy & Automation, Inc.

Aerotech, Inc.

Curtiss-Wright Electro-Mechanical Corporation

Siemens Aktiengesellschaft

Unico Corp.

Benshaw, Inc.

Marc Francis Aiello

Peter W Hammond

Edward Alan Cheesman

Mukul Rastogi

Xuan Zhang

Kenneth Stephen Berton

Wayne Sheldon Jordan

Richard H Osman

Dustin Kramer

Joseph M Matesa, Jr

Jonathan Kunkle

Walter Gilbert Barie

Frank W Santucci, Jr

John J Grazulis

Jiahui Zhang

Matthew Marullo

Jason Waggel

Dustin Matthew Kramer

Peter Willard Hammond

A temperature control system () for a variable frequency drive () includes a sealed enclosure (), a power electronic component () and/or a power magnetic component () positioned inside the sealed enclosure (), and a controller () configured to control a temperature of the power electronic component () and/or the power magnetic component () relative to an internal air temperature (Tair) inside the sealed enclosure () prior to an electrical energy application and operation of the power electronic component () and/or power magnetic component () to prevent condensation induced electrical failure of the power electronic component () and/or power magnetic component () utilizing a cooling system () and/or a heating system ().

System and method for condensation free medium voltage variable frequency drive

A modular multilevel converter system. The system includes a plurality of series connected two-terminal M2LC cells arranged into at least two output phase modules. A first one of the output phase modules has an inductance and an effective capacitance associated therewith. The first one of the output phase modules is configured so that a natural resonant frequency of the inductance with the effective capacitance of the first one of the output phase modules is greater than at least one of the following: an operating frequency of the first one of the output phase modules; a switching frequency of the first one of the output phase modules; and a switching frequency of any of the M2LC cells of the first one of the output phase modules.

M2LC system and method for controlling same

A system. The system is a modular multilevel converter system and includes a plurality of series connected two-terminal modular multilevel converter subsystems. The subsystems are magnetically coupled to an AC current source power supply.

M2LC system coupled to a current source power supply

A system for cooling a multi-cell power supply, the system including a water pump, a water-to-air heat exchanger in fluid communication with the water pump, and a supply water manifold in fluid connection with the water-to-air-heat exchanger. The system further includes a plurality of power cells in fluid communication with the supply water manifold via one or more water hoses, and a multi-winding device in fluid communication with the plurality of power cells via at least one water-cooled bus, wherein the at least one water cooled bus electrically connects the power cells to secondary windings of the multi-winding device. The water-cooled buses provide both electrical current as well as cooling fluid to each winding of the multi-winding device, thereby eliminating a need for separate cooling and power connections.

Integrated water current connection for motor drive

A two-level two-terminal modular multilevel converter subsystem. The subsystem includes a first capacitor and a second capacitor. The modular multilevel converter subsystem is configured to selectively place the first capacitor in series with the second capacitor. The modular multilevel converter subsystem is also configured to selectively place the first capacitor in parallel with the second capacitor relative to first and second output terminals of the modular multilevel converter subsystem.

Two-terminal M2LC subsystem and M2LC system including same

A modular multilevel converter system. The system includes a plurality of series connected two-terminal M2LC subsystems and a control system module. The two-terminal M2LC subsystems are arranged into at least two output phase modules. A first one of the output phase modules defines a total value of inductance and includes a positive arm and a negative arm. The control system module is configured to apply selectively reassigned modulated switch functions to only one of the following at a given instance of time: the two-terminal M2LC subsystems of the positive arm of the first one of the output phase modules or the two-terminal M2LC subsystems of the negative arm of the first one of the output phase modules. The selective reassigning of the modulated switch functions forces charge balance of the individual capacitors of the series connected two-terminal M2LC subsystems at a predetermined rate.

System and method for controlling a M2LC system

A method for designing a transformer using three secondary winding phase shift angles and a minimized core cross-sections. The method includes receiving an indication of an acceptable level of total harmonic distortion (THD) for the transformer, identifying a desired number of secondary windings per output phase of the transformer, simulating performance of various models for the transformer various potential phase shift angles, wherein each of the various models includes a set of phase shift angles for the secondary windings of the transformer. The method further includes identifying, based on the simulation, a transformer model that both has no more than three unique phase shift angles in the set and exhibits a primary side THD that is within the acceptable level, identifying an optimized core cross-sections, and reporting the identified transformer model having the three unique phase shift angle and the optimized core cross-sections.

Method of designing a multi-winding device

A three-phase, multi-winding includes a core, the core including a hub and an outer shell around a perimeter of the hub. wherein the hub and the outer shell are in a fixed position with respect to each other. The core also includes multiple slots. In addition to the core, the multi-winding device includes a primary winding positioned in at least two of the slots; and multiple spatially distributed secondary windings, wherein at least one of the secondary windings is positioned proximate the primary winding in at least one of the two slots.

Three-phase multi-winding device

A power delivery system includes a group of removable power cells. Each power cell includes a water cooled heat sink, an air intake, and an air output. The system also includes a heat exchanger. The heat exchanger draws air from the cells, cools it, and recirculates the cooled air to the cells via each cell's air intake. The cell may be designed so that components that are not near the heat sink are cooled by air from the intake before that air reaches the heat sink.

Packaging system for modular power cells

A power cell system includes a structure that provides multiple power cell locations. The system also includes at least one regenerative power cell, and at least one non-regenerative power cell. The cell locations and power cells are sized and positioned so that each cell location may interchangeably accept either a regenerative power cell or a non-regenerative power cell.

Power delivery system including interchangeable cells

A method of operating a power delivery system that has at least one power cell includes directing air into the power cells to cool them, receiving the air from the cells, directing the air to a cooling system, and recirculating the cooled air to the power cells. Each cell may include an air intake, an air output, a water-cooled heat sink, and optionally a plurality of capacitor connectors and/or a circuit board. The air may be directed through the air intake to the air output so that air passes over the capacitor connectors and/or the circuit board before passing over the heat sink.

Packaging method for modular power cells

A method for optically detecting an electrical arc in a power supply. The method includes capturing light with a light pipe, transmitting the captured light along at least a portion of a length of the light pipe, optically detecting the transmitted light with a photodetector which is optically coupled to the light pipe, generating a signal indicative of an intensity of the detected light, and determining whether the detected light is associated with an electrical arc.

Method for optically detecting an electrical arc in a power supply

A system for optically detecting an electrical arc in a power supply. The system includes a light pipe, a photodetector optically coupled to the light pipe, and a signal processor connected to the photodetector.

System for optically detecting an electrical arc in a power supply

A variable frequency drive including a plurality of power cells that are configured as three phases of series-connected cells to deliver power to a load. The drive is operated to increase the output voltage of each power cell using overmodulation.

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Oakmont, PA, United States of America

Marc Francis Aiello