公开(公告)号：EP3382888A1

公开(公告)日：2018-10-03

申请号：EP17164402.4

申请日：2017-03-31

Applicant: Grundfos Holding A/S

Inventor： Vestergaard Kragelund, Klaus ,  Plougmann, Jan ,  Aarestrup, Jan Carøe

IPC: H02P21/00 ,  F04D13/06

CPC classification number: H02P23/009 ,  F04D13/06 ,  F04D15/0066 ,  F04D15/0088 ,  H02P21/0089 ,  H02P25/024 ,  H02P25/16 ,  H02P27/085 ,  H02P29/40 ,  H02P2201/03 ,  H02P2207/05

Abstract: The present disclosure provides a pump assembly (1) comprising a pump unit (2)capable of providing a desired head H 0 at zero flow rate, a brushless speed-controlled permanent-magnet AC drive motor (205) for driving the pump unit (2), and a control unit for controlling the drive motor (205), wherein the control unit comprises a frequency converter configured to receive an input voltage (U in ), wherein the drive motor (205) is operable in a field-weakening mode and non-field-weakening mode, wherein the drive motor (205) is undersized for driving the pump unit (2) at a design input voltage (U 0 ) to provide a lower head H than the desired head H 0 at zero flow rate in the non-field-weakening mode and for driving the pump unit (2) to provide the desired head H 0 at zero flow rate in the field-weakening mode.

公开(公告)号：EP3245528A1

公开(公告)日：2017-11-22

申请号：EP16701568.4

申请日：2016-01-06

Applicant: Vestas Wind Systems A/S

Inventor： ANDERSEN, Søren ,  NIELSEN, John Godsk ,  DOAN, Duy Duc

IPC: G01R31/08 ,  F03D7/02 ,  F03D7/04 ,  H02J3/36 ,  H02J3/38 ,  H02J3/40 ,  G01R31/34 ,  F03D9/00

CPC classification number: H02P9/006 ,  F03D7/0264 ,  F03D7/0284 ,  F03D7/04 ,  F03D9/255 ,  G01R27/16 ,  G01R31/343 ,  G01R31/40 ,  G01R31/42 ,  H02J3/36 ,  H02J3/386 ,  H02K7/1838 ,  H02M5/4585 ,  H02P2101/15 ,  H02P2201/03 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E60/60

Abstract: A method of monitoring a split wind-turbine-converter system with at least one generator-side converter and at least one grid-side converter arranged at distant locations, and a DC-link in the form of an elongated conductor arrangement with at least one positive and at least one negative conductor. The impedance of the DC-link conductor arrangement is determined by means of DC-voltage sensors. The voltages between the positive and the negative conductors are determined at the generator-side converter and at the grid-side converter, and the difference between the voltages is determined. The impedance of the DC-link conductor arrangement is determined by putting the determined voltage difference in relation to the DC current flowing through the DC-link conductor arrangement. If the impedance exceeds a given impedance threshold a fault state is recognized.

公开(公告)号：EP3054585A4

公开(公告)日：2017-05-17

申请号：EP13894237

申请日：2013-09-30

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： TSUMURA AKIHIRO ,  YUASA KENTA ,  KUSUBE SHINSAKU

IPC: H02M1/42 ,  H01L29/16 ,  H02P29/50

CPC classification number: H02P6/28 ,  H01L29/1608 ,  H02M1/4225 ,  H02M5/458 ,  H02M2001/007 ,  H02P2201/03 ,  H02P2201/09 ,  Y02B70/126

Abstract: A motor drive control apparatus (1) according to the present invention includes: a three-phase rectifier (10) to rectify an AC voltage supplied from a three-phase AC source (6); a booster circuit (20) including a reactor (21), a switching element (22), and a backflow preventing element (23), to boost a DC bus voltage supplied from the three-phase rectifier (10); a smoothing capacitor (30) to smooth an output of the booster circuit (20); and an inverter circuit (40) to convert the DC bus voltage smoothed by the smoothing capacitor (30) into an AC voltage and supplying the AC voltage to a motor. During a starting operation of a boosting operation of the booster circuit (20) or a stopping operation of the boosting operation thereof, a rotation speed of the motor is fixed.

Abstract translation: 本发明的电动机驱动控制装置（1）具有：对从三相交流电源（6）供给的交流电压进行整流的三相整流器（10） 包括电抗器（21），开关元件（22）和防回流元件（23）的升压电路（20），用于升压从三相整流器（10）供应的DC总线电压; 平滑电容器（30），用于平滑升压电路（20）的输出; 以及逆变器电路（40），将由平滑电容器（30）平滑后的直流母线电压转换成交流电压并提供给电动机。 在升压电路（20）的升压动作或升压动作的停止动作的开始动作中，电动机的转速被固定。

公开(公告)号：EP3043467A1

公开(公告)日：2016-07-13

申请号：EP15150780.3

申请日：2015-01-12

Applicant: Siemens Aktiengesellschaft

Inventor： Tsoumas, Ioannis

IPC: H02P27/06 ,  H02P23/02

CPC classification number: H02P23/02 ,  H02P27/06 ,  H02P2201/03

Abstract: Die Erfindung betrifft ein Verfahren und eine Regelungsvorrichtung (13) zur Regelung einer Antriebsvorrichtung (1), die einen Elektromotor (5) mit einer Motorwelle (7) und einen Umrichter (11) zur Energieversorgung des Elektromotors (5) aufweist. Dabei werden Messwerte von Messgrößen, die eine Verlustleistung der Antriebsvorrichtung (1) charakterisieren, erfasst und eine Umrichterausgangsspannung wird in Abhängigkeit von den erfassten Messwerten derart geregelt, dass die Verlustleistung abnimmt.

Abstract translation: 本发明涉及一种方法和用于控制给电动马达（5）供给电力的驱动装置（1），其包括具有马达轴（7）和一个转换器（11）的电动马达（5）的控制装置（13）。 这里，当检测到测量的变量表征所述驱动装置（1）的功率损耗的测量值，和一个转换器输出电压被检测到的测量值的依赖于这样的方式，功率损耗减小调节。

公开(公告)号：EP2654160B1

公开(公告)日：2016-07-13

申请号：EP12164595.6

申请日：2012-04-18

Applicant: Siemens Aktiengesellschaft

Inventor： Benesch, Norbert, Dr. ,  Wedel, Bernd

IPC: H02J1/08 ,  H02J1/10 ,  H02J1/14 ,  H02J3/38

CPC classification number: H02J1/08 ,  H02J1/14 ,  H02P2201/03

公开(公告)号：EP2140215B1

公开(公告)日：2016-01-13

申请号：EP08712208.1

申请日：2008-01-26

Applicant: LG Electronics Inc.

Inventor： YOO, Jae Yoo ,  KIM, Chang Oh

IPC: F25D29/00 ,  H02M7/10

CPC classification number: F25B49/025 ,  F25B2600/021 ,  F25B2700/15 ,  H02M1/10 ,  H02P27/18 ,  H02P2201/03 ,  Y02B30/741

公开(公告)号：EP2940824A1

公开(公告)日：2015-11-04

申请号：EP14275095.9

申请日：2014-04-29

Applicant: ALSTOM Technology Ltd

Inventor： Fintzos, Georgios ,  Whitehouse, Robert Stephen ,  Barker, Carl David

IPC: H02J3/38 ,  H02M5/458 ,  H02M7/757 ,  H02P9/10

CPC classification number: H02J5/00 ,  H02J3/382 ,  H02J3/386 ,  H02J2003/365 ,  H02M5/40 ,  H02M7/02 ,  H02P9/102 ,  H02P2101/15 ,  H02P2201/01 ,  H02P2201/03 ,  Y02E10/763

Abstract: A wind farm side voltage source converter (32; 94) comprises a DC terminal (40) for connection to a DC transmission link (38), an AC terminal (42) for connection to a wind farm (44) that includes at least one wind turbine (46), and a main controller (10; 20; 96). The main controller (10; 20; 96) is configured to modify an active power demand (P demand ) of the voltage source converter (32; 94) which is received from a higher level controller by introducing an artificial inertia factor and/or in response to a measured DC voltage (V dc_msr ) at the DC terminal (40).

Abstract translation: 风力发电场侧电压源转换器（32; 94）包括用于连接到DC传输链路（38）的DC端子（40），用于连接到风力发电场（44）的AC端子（42），其包括至少一个 风力涡轮机（46）和主控制器（10; 20; 96）。 主控制器（10; 20; 96）被配置为通过引入人造惯性因子和/或在主控制器（10; 20; 96）中修改从较高级控制器接收的电压源转换器（32; 94）的有功功率需求（P需求） 对直流端子（40）处的测量直流电压（V dc_msr）的响应。

公开(公告)号：EP2127511B1

公开(公告)日：2015-11-04

申请号：EP08728410.5

申请日：2008-01-28

Applicant: Johnson Controls Technology Company

Inventor： SCHNETZKA, Harold R. ,  JADRIC, Ivan ,  HOOVER, Steve ,  ROGERS, Kathleen S. ,  YANIK, Mustafa Kemel

IPC: H05K7/20

CPC classification number: H02M1/12 ,  F25B49/025 ,  F25B2600/021 ,  H02M2001/123 ,  H02P27/08 ,  H02P29/50 ,  H02P2201/03 ,  H03L7/093 ,  H03L7/095 ,  H05K7/20936 ,  Y02B30/741

公开(公告)号：EP0751610B1

公开(公告)日：2002-01-30

申请号：EP95110145.0

申请日：1995-06-29

Applicant: HITACHI KOKI CO., LTD.

Inventor： Inaniwa, Masahiro ,  Kido, Nobuharu ,  Fujimaki, Takahiro ,  Watanabe, Shinji ,  Matsufuji, Noriyasu ,  Tobita, Yoshinori

IPC: H02M5/458

CPC classification number: H02M5/4585 ,  H02P23/07 ,  H02P2201/03 ,  H02P2201/07

公开(公告)号：EP0218983B1

公开(公告)日：1991-11-13

申请号：EP86113425.2

申请日：1986-09-30

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hirata, Akio c/o Patent Division

IPC: H02P7/628 ,  H02M5/45

CPC classification number: H02P27/06 ,  H02M5/4505 ,  H02M7/527 ,  H02P2201/03