公开(公告)号：WO2009148555A3

公开(公告)日：2010-10-07

申请号：PCT/US2009003311

申请日：2009-06-01

Applicant: SIEMENS INDUSTRY INC ,  HAMMOND PETER WILLARD ,  RASTOGI MUKUL

Inventor： HAMMOND PETER WILLARD ,  RASTOGI MUKUL

IPC: H02M5/458

CPC classification number: H02M7/49 ,  H02M7/5395 ,  H02M2001/0048 ,  Y02B70/1491 ,  Y10T307/549

Abstract: A method of reducing switching losses in a power supply includes the steps of advancing the output voltage of a first pole of a power cell by a first angle, retarding the output voltage of a second pole of the power cell by a second angle, and producing a combined output voltage of the power cell equal to a positive pulse of a duration angle equal to the sum of the first angle and the second angle for a first half of a switching cycle of the power cell, and equal to a negative pulse of a duration angle equal to the sum of the first angle and the second angle for a second half of the switching cycle of the power cell.

Abstract translation: 一种降低电源中的开关损耗的方法包括以下步骤：将功率单元的第一极的输出电压提高第一角度，将功率单元的第二极的输出电压延迟第二角度，并产生 功率单元的组合输出电压等于功率单元的开关周期的前半部分等于第一角度和第二角度之和的持续时间角的正脉冲，并且等于负的脉冲 持续时间角等于功率单元的开关周期的后半段的第一角度和第二角度之和。

公开(公告)号：WO2010011881A1

公开(公告)日：2010-01-28

申请号：PCT/US2009051627

申请日：2009-07-24

Applicant: SIEMENS INDUSTRY INC ,  RASTOGI MUKUL ,  AIELLO MARC F ,  SANTUCCI JR FRANK W ,  CHEESMAN EDWARD ALAN

Inventor： RASTOGI MUKUL ,  AIELLO MARC F ,  SANTUCCI JR FRANK W ,  CHEESMAN EDWARD ALAN

IPC: H02M7/49 ,  H01F41/00

CPC classification number: H02M7/49 ,  H02M1/12 ,  H02M5/14

Abstract: 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.

Abstract translation: 一种使用三个次级绕组相移角度和最小化的芯部横截面来设计变压器的方法。 该方法包括接收变压器的总谐波失真（THD）的可接受水平的指示，识别变压器每输出相位期望次数的次级绕组，模拟变压器各种模型的性能各种潜在的相移角，其中 各种模型中的每一个包括用于变压器的次级绕组的一组相移角。 该方法还包括基于模拟识别变压器模型，其在集合中具有不超过三个独特的相移角，并且显示处于可接受水平内的初级侧THD，识别优化的芯横截面，以及 报告具有三个独特相移角和优化的核心横截面的所识别的变压器模型。

公开(公告)号：WO2006130452A2

公开(公告)日：2006-12-07

申请号：PCT/US2006020373

申请日：2006-05-26

Applicant: SIEMENS ENERGY & AUTOMAT ,  RASTOGI MUKUL ,  AIELLO MARC F ,  OSMAN RICHARD H

Inventor： RASTOGI MUKUL ,  AIELLO MARC F ,  OSMAN RICHARD H

IPC: H02M5/458

CPC classification number: H02M7/49 ,  H02M5/458 ,  H02P27/16

Abstract: 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.

Abstract translation: 一种变频驱动器，包括被配置为串联连接的单元的三相的多个功率单元，以向负载输送功率。 使用过调制来驱动驱动器来增加每个功率单元的输出电压。

公开(公告)号：WO2008130700A3

公开(公告)日：2009-12-30

申请号：PCT/US2008005130

申请日：2008-04-21

Applicant: SIEMENS ENERGY & AUTOMAT ,  OSMAN RICHARD H ,  PATEL KINJAL ,  RASTOGI MUKUL

Inventor： OSMAN RICHARD H ,  PATEL KINJAL ,  RASTOGI MUKUL

IPC: H02P1/50 ,  H02P25/02

CPC classification number: H02P9/302 ,  H02P1/50 ,  H02P21/00 ,  H02P25/03 ,  H02P2207/05

Abstract: A starting method and system for a motor where the motor may be started as an induction motor by applying a magnetizing current to build flux through the stator, with the field current set at the maximum permissible exciter stator current (i.e., the current that will cause rated no-load current in the main field at the transition speed). The motor stator currents will be maintained at a value that allows the motor to generate sufficient breakaway torque to overcome any stiction. At a specific transition speed or after a period of time, the drive will initiate a transition from induction motor control to synchronous motor control by removing the initial magnetizing current, and a field current is then applied to the motor through the DC exciter. Once this transition is completed, the drive may ramp up to the desired speed demand.

Abstract translation: 电动机的起动方法和系统，其中电动机可以通过施加磁化电流作为感应电动机起动以通过定子建立磁通，其中励磁电流设定在最大允许的励磁机定子电流（即将导致的电流） 在过渡速度下，在主场中额定空载电流）。 电动机定子电流将保持在允许电动机产生足够的分离转矩以克服任何静压的值。 在特定的转变速度或一段时间后，驱动器将通过移除初始磁化电流来启动从感应电动机控制转换到同步电动机控制，然后通过直流励磁器将励磁电流施加到电动机。 一旦完成这一转换，驱动器可能会升高到所需的速度要求。

公开(公告)号：WO2007022164A2

公开(公告)日：2007-02-22

申请号：PCT/US2006031800

申请日：2006-08-14

Applicant: SIEMENS ENERGY & AUTOMAT ,  FLAUGHER JR RALPH ,  FUKUTA YUSUKE ,  GAILLOT RONALD ,  RASTOGI MUKUL ,  SCHNEIDER ANTHONY C

Inventor： FLAUGHER JR RALPH ,  FUKUTA YUSUKE ,  GAILLOT RONALD ,  RASTOGI MUKUL ,  SCHNEIDER ANTHONY C

IPC: H02P21/00 ,  H02M7/48

CPC classification number: H02M7/493 ,  H02P21/22 ,  H02P25/22

Abstract: A method for controlling at least two variable frequency drives connected in parallel. The method comprises, for each variable frequency drive, communicating a magnetizing current component value to a master controller, and receiving a speed demand, a flux demand, and an average magnetizing current component value from the master controller. The method also comprises determining a motor speed and a motor flux based on measurements of a stator voltage and current of a motor coupled to the variable frequency drive, determining a speed reference based on a torque current component value, and determining a flux reference based on the magnetizing current component value and the average magnetizing current component value. The method further comprises adjusting a torque current component based on the speed reference and/or adjusting a magnetizing current component based on the flux reference.

Abstract translation: 一种用于控制并联连接的至少两个变频驱动器的方法。 该方法包括对于每个变频驱动器将磁化电流分量值传送给主控制器，并且从主控制器接收速度需求，磁通量需求和平均磁化电流分量值。 该方法还包括基于耦合到变频驱动器的电动机的定子电压和电流的测量来确定电动机速度和电动机磁通量，基于转矩电流分量值确定速度参考，以及基于 磁化电流分量值和平均磁化电流分量值。 该方法还包括基于速度基准调整转矩电流分量和/或基于磁通基准调整磁化电流分量。

公开(公告)号：WO2006124868A3

公开(公告)日：2007-02-08

申请号：PCT/US2006018875

申请日：2006-05-16

Applicant: SIEMENS ENERGY & AUTOMAT ,  RASTOGI MUKUL ,  HAMMOND PETER W ,  SIMMS STAN R

Inventor： RASTOGI MUKUL ,  HAMMOND PETER W ,  SIMMS STAN R

IPC: G05F1/70 ,  H02J3/18

CPC classification number: H02J3/1857 ,  H02M7/49 ,  Y02E40/26

Abstract: A multi-phase active filter (234) includes a group of power cells (241-252) electrically connected in a three-phase configuration, a precharging circuit (260) , and a controller (350) that controls the voltage delivered to the plurality of power cells (241-252) . Each power cell includes an inverter (300) having a pair of direct current terminals, at least one capacitor (320) electrically connected in parallel with the inverter (300) , and an energy dissipating circuit (330) that is electrically connected in parallel with the inverter (300) . The energy dissipating circuit (330) of each power cell self -regulates DC voltage within the cell.

Abstract translation: 多相有源滤波器（234）包括以三相配置电连接的一组功率单元（241-252），预充电电路（260）和控制器（350），控制器 的功率单元（241-252）。 每个功率单元包括具有一对直流端子的逆变器（300），与逆变器（300）并联电连接的至少一个电容器（320），以及能量消散电路（330），其与 逆变器（300）。 每个功率单元的能量消耗电路（330）自调节电池内的直流电压。

公开(公告)号：WO2014120850A2

公开(公告)日：2014-08-07

申请号：PCT/US2014013707

申请日：2014-01-30

Applicant: SIEMENS INDUSTRY INC

Inventor： RASTOGI MUKUL ,  ERB DANIEL EDWARD ,  CHEESMAN EDWARD ALAN

IPC: H02M5/458 ,  H02M1/00 ,  H02M7/49 ,  H02M7/493

CPC classification number: G05F1/00 ,  G01R19/0092 ,  H02M7/49 ,  H02M7/493 ,  H02M2001/0009

Abstract: Apparatus and methods in accordance with this invention provide a multi-cell power supply for receiving power from a source and delivering power at an output terminal to a load. The multi-cell power supply includes a first power cell coupled to the source, and a first current sensor circuit. The first power cell provides a first output current, and includes a first output terminal coupled to a reference node of the multi-cell power supply, and a second output terminal coupled to the output terminal. The first current sensor circuit includes a first current sensor and a power supply. The first current sensor is coupled to the first output terminal of the first power cell, and measures the first output current. The power supply is coupled to either the reference node or a floating ground node of the first power cell, and provides power to the first current sensor.

Abstract translation: 根据本发明的设备和方法提供了一种多电池电源，用于接收来自电源的电力并将输出端的电力输送到负载。 多单元电源包括耦合到源的第一功率单元和第一电流传感器电路。 第一功率单元提供第一输出电流，并且包括耦合到多单元电源的参考节点的第一输出端子和耦合到输出端子的第二输出端子。 第一电流传感器电路包括第一电流传感器和电源。 第一电流传感器耦合到第一功率单元的第一输出端子，并且测量第一输出电流。 电源耦合到第一电池的参考节点或浮动接地节点，并向第一电流传感器提供电力。