-
1.发明公开
公开(公告)号：EP4397147A1
公开(公告)日：2024-07-10
申请号：EP22769325.6
申请日：2022-08-21
发明人： NEHME, Samir , DHOKKAR, Sonia , GONCALVES, Rémi , M'FUMU AMBIL, Raïs , SOUAHLIA, Rachid , DIEVART, Jean-Laurent , THIAM, Abdoulahad
CPC分类号： H02M7/003 , H02M1/14 , H05K7/14329
-
公开(公告)号：EP3753095B1
公开(公告)日：2024-06-26
申请号：EP19701552.2
申请日：2019-01-31
CPC分类号： H02M1/14 , H02M1/15 , H02M1/4225 , Y02B70/10 , H02M1/0025 , H02M1/0009 , H02M3/1586
-
公开(公告)号：EP4387068A1
公开(公告)日：2024-06-19
申请号：EP22306890.9
申请日：2022-12-15
发明人： DUTREY, Alain , KOTEICH, Mohamad
IPC分类号： H02M1/14 , H02M1/32 , H02M7/48 , H02M7/5387 , G01R31/64
摘要： Method to estimate a remaining of useful life of a DC link capacitor (3) of a converter (1) through determination of a minimum value Clim of its capacitance C under which performances of the converter are considered as insufficient comprising:
- implementing a real time model (130, 230) comprising a motor drive model and a capacitor model using decreasing capacitor values (140, 150, 240, 250) to calculate a forecasted minimum capacitance Clim sufficient for keeping at least one of DC voltage ripple, motor current ripple, speed ripple or torque ripple under a specified value;
- calculating a time difference between a time Tactual, for which the capacitor has an estimated capacitance based on an ageing curve Ccurve, and a time Tlim for which the capacitor will have the forecasted minimum capacitance Clim, with the use of an ageing curve Ccurve of said capacitor and estimating the remaining useful life of said capacitor Tactual-Tlim (120).-
公开(公告)号：EP4362301A1
公开(公告)日：2024-05-01
申请号：EP23186079.2
申请日：2023-07-18
发明人： CHO, Sungkyu , YOON, Kyeseok , KIM, Dongjoon , LEE, Sungwoo , CHO, Daewoong , HEO, Jungwook
CPC分类号： H02M1/0032 , H02M1/14 , H02M3/158 , H03K7/08 , H03K3/0231
摘要： A voltage converter, including a switch circuit configured to generate an output voltage by switching an input voltage and a ground voltage based on a driving control signal; an error voltage generator configured to generate an error voltage based on a comparison between the output voltage and a reference voltage; a duty signal generator configured to generate a duty signal having a constant pulse frequency or a modulated pulse frequency, based on a result of the comparing; and a driving controller configured to generate the driving control signal based on the duty signal.
-
公开(公告)号：EP4358358A1
公开(公告)日：2024-04-24
申请号：EP23204099.8
申请日：2023-10-17
发明人： ZHOU, Yuchen
IPC分类号： H02J7/02
CPC分类号： Y02T10/70 , Y02T10/7072 , H02J7/02 , H02J2207/2020200101 , B60L53/22 , H02M1/4216 , H02M7/487 , H02M1/0032 , H02M1/14
摘要： This application discloses a charging module, a charging device, and a charging system. The charging module includes a three-phase rectifier module, a bus capacitor module, an inductor, and a controller. An input end of the three-phase rectifier module is electrically connected to an input power supply, and an output end of the three-phase rectifier module is electrically connected to an input end of the bus capacitor module. The bus capacitor module includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between a first output end of a three-phase bridge arm and a midpoint of the three-phase bridge arm, and the second bus capacitor is electrically connected between a second output end of the three-phase bridge arm and the midpoint. The inductor is electrically connected to the midpoint of the three-phase bridge arm and a midpoint between the first bus capacitor and the second bus capacitor. The controller is configured to: obtain an input voltage and an input current of the charging module, and control a status of the three-phase rectifier module based on the input voltage and the input current. In this application, a power factor correction function can be implemented, and there is an effect of improving a bus ripple and an input current waveform in a working condition with a non-unity power factor.
-
公开(公告)号：EP3210288B1
公开(公告)日：2018-12-05
申请号：EP15781795.8
申请日：2015-09-24
CPC分类号： H02M3/158 , H02M1/14 , H02M7/483 , H02M2003/072
摘要： A circuit including: a three-level buck converter having: a plurality of input switches and an inductor configured to receive a voltage from the plurality of input switches, the plurality of input switches coupled with a first capacitor and configured to charge and discharge the first capacitor; a second capacitor at an output of the buck converter; and a switched capacitor at an input node of the inductor, wherein the switched capacitor is smaller than either the first capacitor or the second capacitor.
-
公开(公告)号：EP3101798B1
公开(公告)日：2018-11-28
申请号：EP16175310.8
申请日：2012-12-12
CPC分类号： H02M1/12 , H02M1/14 , H02M1/4208 , H02M1/4225 , Y02B70/126
摘要： A rectifier device according to the present disclosure controls a ratio of a short-circuit and an opening of a semiconductor switch based upon a difference between command information, which is a total of a harmonic current waveform with a fixed value within a limit of a harmonic regulation and a sinusoidal current waveform that is variable according to a DC load connected to the rectifier device, and actual current information. The harmonic current waveform is a sum of sine function groups of odd orders, wherein an amplitude of each odd-order harmonic is set to be substantially equal to an allowable value under the harmonic regulation, and each odd-order harmonic becomes a zero phase when a fundamental wave expressed by a sine function becomes a zero phase. When the variable sinusoidal current value is smaller than a predetermined value, the harmonic current waveform is attenuated in conjunction.
-
公开(公告)号：EP3396838A1
公开(公告)日：2018-10-31
申请号：EP17168007.7
申请日：2017-04-25
CPC分类号： H02M1/14 , H02M1/12 , H02M2007/4835
摘要： A converter (30) comprises first and second DC terminals (32,34) connectable in use to a DC network (40), the converter (30) including a converter limb (36) extending between the DC terminals (32,34), the converter limb (36) including first and second limb portions separated by an AC terminal (38), the AC terminal (38) connectable in use to an AC voltage, each limb portion including at least one director switch (44) connected in series with a waveform synthesizer between the AC terminal (44) and a respective one of the first and second DC terminals (32,34), the waveform synthesizers operable to control the modulation of an AC voltage waveform at the AC terminal (38), each director switch (44) operable to switch the respective waveform synthesizer into and out of circuit between the respective DC terminal (32,34) and the AC terminal (38); and
a controller (56) programmed to selectively control the switching of the director switches (44) to switch both of the limb portions into circuit concurrently to form a current conduction path between the DC terminals (32,34), the current conduction path configured to carry a current for presentation to the DC network (40),
wherein the controller (56) is programmed to selectively operate the waveform synthesizers to inject at least one harmonic component to modulate the AC voltage waveform at the AC terminal (38) so that during the formation of the current conduction path the magnitude of the modulated AC voltage waveform is lower than the magnitude of the fundamental component of the AC voltage waveform, and wherein the at least one harmonic component is a non-triplen harmonic component.-
公开(公告)号：EP3367550A1
公开(公告)日：2018-08-29
申请号：EP16857132.1
申请日：2016-07-04
发明人： AYAI, Naoki
IPC分类号： H02M7/48
CPC分类号： H02M7/53871 , H02J3/383 , H02M1/14 , H02M1/4225 , H02M3/158 , H02M7/48 , H02M2001/0054
摘要： This power conversion device performs DC/AC power conversion via an intermediate bus, and includes: a first DC/DC converter provided between a DC power supply and the intermediate bus; a second DC/DC converter provided between a DC-side capacitor and the intermediate bus; an intermediate capacitor connected to the intermediate bus; a DC/AC converter provided between the intermediate bus and an AC grid; and a control unit configured to control the first DC/DC converter, the second DC/DC converter, and the DC/AC converter, the control unit making such current command value setting that mainly the second DC/DC converter supplies a reactive current flowing through the intermediate bus.
-
公开(公告)号：EP2835901B1
公开(公告)日：2018-08-22
申请号：EP12873725.1
申请日：2012-07-06
发明人： FUJITA, Satoru , YAMADA, Ryuji
CPC分类号： H02J9/00 , H02J2009/063 , H02M1/10 , H02M1/14 , H02M5/297 , H02M5/4585 , H02M7/483 , H02M7/537 , H02M11/00 , Y10T307/609
摘要： There is provided a power conversion device such that it is possible to supply a constant voltage to a load even when the voltage of a 3-phase alternating current power supply fluctuates. A series circuit formed of a switching element Q1 and switching element Q2 and a series circuit formed of a switching element Q3 and switching element Q4 are connected to both ends of a direct current power supply series circuit 3 formed of a direct current power supply Psp and a direct current power supply Psn, a bidirectional switch element S1 is connected between an alternating current output terminal U and a terminal R, a bidirectional switch element S2 is connected between the alternating current output terminal U and a neutral terminal O, a bidirectional switch element S3 is connected between an alternating current output terminal W and the neutral terminal O, a bidirectional switch element S4 is connected between the alternating current output terminal W and a terminal T, and furthermore, an alternating current output terminal V and terminal S are connected.
-
-
-
-
-
-
-
-
-
搜索结果
514 条记录 (耗时 0.02 秒)
