公开(公告)号：EP4369596A1

公开(公告)日：2024-05-15

申请号：EP21949360.8

申请日：2021-07-09

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： OGIWARA, Kento ,  FUJIMOTO, Chiaki ,  SAWADA, Seiji ,  MAEDA, Yuta ,  NORIKAWA, Motohiro

IPC分类号： H02P29/024

CPC分类号： B62D5/0487 ,  H02P29/0243

摘要： A motor control device includes: a motor driver configured to supply electric power to a motor having windings of a plurality of phases, the motor driver including, for each phase of the plurality of phases, an upper drive element and a lower drive element which are connected in series; a motor terminal voltage detector configured to detect a motor terminal voltage value based on a voltage of a motor terminal for each phase of the motor; a drive element fault determinator configured to perform fault determination for the upper drive elements and the lower drive elements, based on a voltage value across each drive element, and output a result of the fault determination; and a short/open-circuit fault determinator configured to, when the result of the fault determination output by the drive element fault determinator indicates that there is a fault, determine whether the fault is a short-circuit fault or an open-circuit fault, for the upper drive elements and the lower drive elements, based on the motor terminal voltage value detected by the motor terminal voltage detector.

公开(公告)号：EP3306330A1

公开(公告)日：2018-04-11

申请号：EP17190386.7

申请日：2017-09-11

申请人： Rolls-Royce plc

发明人： Nadarajan, Sivakumar ,  Gupta, Amit K ,  Viswanathan, Vaiyapuri ,  Gajanayake, Chandana J

IPC分类号： G01R31/34 ,  G01R23/00 ,  H02P29/024

CPC分类号： G01R31/346 ,  F02C3/04 ,  G01R23/00 ,  G06F17/30598 ,  H02P9/107 ,  H02P29/0243 ,  H02P2101/25 ,  H02P2103/20

摘要： A method of classifying a stator winding fault in a brushless synchronous generator (30). Measure an electrical parameter of the stator winding (42). Classify the fault by calculating positive or negative sequence harmonics of the parameter and comparing one or more harmonic component to a threshold.

摘要翻译： 一种分类无刷同步发电机（30）中的定子绕组故障的方法。 测量定子绕组（42）的电气参数。 通过计算参数的正序或负序谐波并将一个或多个谐波分量与阈值进行比较来分类故障。

公开(公告)号：EP1959557A3

公开(公告)日：2017-04-19

申请号：EP08151016.6

申请日：2008-02-04

申请人： JTEKT Corporation

发明人： Suzuki, Hiroshi JTEKT Corporation

IPC分类号： H02P21/04 ,  H02P29/02 ,  B62D5/04 ,  H02P21/00

CPC分类号： H02P21/04 ,  B62D5/046 ,  B62D5/0484 ,  B62D5/0487 ,  H02P21/0089 ,  H02P29/0243 ,  H02P29/032

摘要： A microcomputer (an electric current command value calculating section) carries out field weakening control in which a d-axis electric current command value Id* is set to a negative value in correspondence with rotation angular velocity ω of a motor. The microcomputer determines whether an anomaly has occurred in an EPS. If it is determined that an anomaly is in a power supply system (step 202: YES), the microcomputer determines whether the anomaly in the power supply system is failure of electric current flow in any phase (step 203). If it is determined that electric current flow has failed in a certain phase, the microcomputer prohibits the field weakening control and outputs a motor control signal instructing to use two other phases free from the failure of electric current flow as electric current flowing phases (two phase drive mode, step 204).

公开(公告)号：EP2913918A4

公开(公告)日：2016-08-03

申请号：EP13849735

申请日：2013-07-26

申请人： HITACHI IND EQUIPMENT SYS

发明人： ONUMA YUUSAKU

IPC分类号： H02P27/06 ,  H02P21/00 ,  H02P27/04 ,  H02P29/024

CPC分类号： H02P27/06 ,  H02P21/22 ,  H02P29/0243

摘要： A power conversion device includes a switching circuit that converts a DC power into an AC power, a current detector that detects a current flowing from the switching circuit to an AC motor, a coordinate converter that converts a current detected by the current detector into a current, which rotates at an arbitrary speed, on coordinates, a phase calculator that calculates a current phase on rotation coordinates from a current on rotation coordinates output from the coordinate converter, and a fault phase determination unit that determines a fault phase based on a current phase on rotation coordinates output from the phase calculator.

公开(公告)号：EP2882095A1

公开(公告)日：2015-06-10

申请号：EP14195199.6

申请日：2014-11-27

申请人： Sinfonia Technology Co., Ltd. ,  IHI Aerospace Co., Ltd.

发明人： Ohta, Yoshito ,  Onishi, Keisuke ,  Oyori, Hitoshi

IPC分类号： H02P29/02 ,  H02P21/00

CPC分类号： H02P6/002 ,  H02P6/28 ,  H02P21/22 ,  H02P29/0243

摘要： A 0-axis current calculator 7 configured to calculate a target value of the 0-axis current by setting the current of the open phase to be zero when one of the phases becomes open, or determines that the target value of the 0-axis current is zero when there is no open phase is provided. Based on the target values of the d-axis current and the q-axis current, the target value of the 0-axis current calculated by the 0-axis current calculator 7, and the d-axis current, the q-axis current, and the 0-axis current transformed by the d-q-0 transformer 8, the current supplied to each phase of the motor are controlled.

摘要翻译： 0轴电流计算部7，其在一方的相位成为开路状态的情况下，将断路相的电流设为零，或者判断为0轴电流的目标值，由此计算0轴电流的目标值 当没有提供开放阶段时为零。 基于q轴电流的d轴电流的目标值和由0轴电流计算部7计算出的0轴电流和d轴电流的目标值，所述q轴电流， 和由dq-0变压器8变换的0轴电流，控制提供给电动机各相的电流。

公开(公告)号：EP2874295A3

公开(公告)日：2015-06-10

申请号：EP14193371.3

申请日：2014-11-17

申请人： LSIS Co., Ltd.

发明人： Lee, Jae Moon ,  Bae, Tae Suk

IPC分类号： H02M1/32 ,  H02P29/02

CPC分类号： G01R25/005 ,  G01R25/00 ,  H02M1/32 ,  H02P29/0243

摘要： An apparatus and a method for detecting phase deficiency in an inverter is provided, the method including deciding whether a sector of the output current is a sector where current detection is possible based on switching operation status of the switching element in the inverter, maintaining a phase deficiency variable when deciding the current detection in the sector of the output current to be impossible, adding a count to a phase deficiency variable to accumulate when deciding the current detection in the sector of the output current to be possible and deciding the output current to be within a phase deficiency band, and determining as phase deficiency when the phase deficiency variable is greater than a prescribed detection level.

公开(公告)号：EP2774261A1

公开(公告)日：2014-09-10

申请号：EP12787014.5

申请日：2012-11-16

申请人： Siemens Aktiengesellschaft

发明人： KÖPKEN, Hans-Georg

IPC分类号： H02M7/5387 ,  H02P29/02

CPC分类号： H02P6/14 ,  H02M7/5387 ,  H02M2001/0074 ,  H02P6/28 ,  H02P27/08 ,  H02P29/0243

摘要： The invention relates to a power converter circuit (4), which comprises at least two submodules (24, 26) in a series circuit, which draws electrical power from a power source (8) outputting a DC voltage (18), via an inductance (22). Each submodule (24, 26) has, on the input side, a single-phase half bridge and, on the load side, a single-phase full bridge, and the half bridge and the full bridge are connected on the DC voltage side, and an intermediate circuit capacitor is connected in parallel therewith. In the power converter circuit specified, at least one electrical line comprising a plurality of current paths (42 to 46) connected in parallel with one another is formed in each submodule (24, 26).

摘要翻译： 本发明涉及一种功率转换器电路（4），其包括串联电路中的至少两个子模块（24,26），所述子模块从输出DC电压（18）的电源（8）汲取电力，经由电感 （22）。 每个子模块（24,26）在输入侧具有单相半桥，并且在负载侧具有单相全桥，半桥和全桥在直流电压侧连接， 并联一个中间电路电容器。 在所述功率转换器电路中，在每个子模块（24,26）中形成至少一个电线，所述电线包括彼此并联连接的多个电流路径（42至46）。

公开(公告)号：EP2510614B1

公开(公告)日：2014-09-03

申请号：EP10779812.6

申请日：2010-11-18

申请人： Rolls-Royce PLC

发明人： CULLEN, John James Anthony

IPC分类号： H02P29/02 ,  H02P9/10 ,  G01R31/34

CPC分类号： H02P29/022 ,  G01R31/34 ,  H02P29/0243 ,  H02P29/032

公开(公告)号：EP2168235B1

公开(公告)日：2010-11-03

申请号：EP08762380.7

申请日：2008-06-13

申请人： ROLLS-ROYCE PLC

发明人： TRAINER, David, Reginald ,  CULLEN, John, James, Anthony ,  MITCHAM, Alan, John ,  CROSS, Andrew, Mark ,  FORSYTH, Andrew, John ,  ABDEL-HAFEZ, Ahmed, Abdel-Malek Electrical Eng: Dept: Faculty of Engineering Assint University

IPC分类号： H02P9/00 ,  H02P29/02 ,  H02P25/22 ,  H02P29/00

CPC分类号： H02P9/00 ,  H02P9/006 ,  H02P25/22 ,  H02P29/0243 ,  H02P29/032 ,  H02P29/50 ,  H02P2101/30

摘要： A synchronous electrical machine comprising a plurality of phases, detecting means arranged to detect a fault in at least one of the phases of the synchronous electrical machine, isolating means arranged to isolate the at least one phase of the synchronous electrical machine with the fault, phase shift means arranged to produce a controlled phase shift between the voltage (emf) and the current within the remaining phases of the synchronous electrical machine to adjust the phase angle and magnitude of the second harmonic powers produced by the remaining phases of the synchronous electrical machine such that the vector sum of the second harmonic power vectors of the remaining phases of the synchronous electrical machine is zero.

公开(公告)号：EP2073370A1

公开(公告)日：2009-06-24

申请号：EP07829302.4

申请日：2007-10-05

申请人： JTEKT Corporation

发明人： SAKAI, Atsuo

IPC分类号： H02P6/12

CPC分类号： H02P6/12 ,  B62D5/0487 ,  G01R31/343 ,  H02P29/0243 ,  H02P29/028

摘要： A microcomputer compares a low voltage LV and a middle voltage MV to a predetermined voltage Vth set at a value in the vicinity of the grounded voltage (0 V) on the basis of detected phase voltages Vu, Vv and Vw, and thus, detects a break in a power supply line.

摘要翻译： 微型计算机基于检测的相电压Vu，Vv和Vw，将设定在接地电压（0V）附近的值的预定电压Vth与低电压LV和中间电压MV进行比较，从而检测出 突破电源线。