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1. 发明授权

EP2894780B1 Multilevel converter systems and methods with reduced common mode voltage 有权
公开(公告)号：EP2894780B1
公开(公告)日：2018-08-15
申请号：EP15150415.6
申请日：2015-01-08
申请人： Rockwell Automation Technologies, Inc.
发明人： Tian, Kai , Cheng, Zhongyuan , Wu, Bin , Xu, David Dewei
IPC分类号： H02M5/458 , H02M7/483
CPC分类号： H02M5/458 , H02M5/4585 , H02M7/483 , H02M7/487 , H02M2001/123 , H02M2007/53876
摘要： Multilevel converters and space vector modulation operating methods are presented in which fewer than all possible switching states are employed for space vector modulation of rectifier and inverter circuits to promote common mode voltage contribution cancellation or reduction therebetween and by using subsets of possible space vector modulation switching states associated with minimal positive or negative common mode voltages and in some cases using virtual vectors which have zero common mode voltages to eliminate the 3rd order harmonic components in common mode voltage as well as to reduce common mode voltage affects associated with multilevel inverter stages.

2. 发明授权

EP3082247B1 OFFSET VOLTAGE GENERATOR AND METHOD FOR GENERATING AN OFFSET VOLTAGE OF THREE-PHASE INVERTER 有权
公开(公告)号：EP3082247B1
公开(公告)日：2018-07-25
申请号：EP16160443.4
申请日：2016-03-15
申请人： LSIS Co., Ltd.
发明人： LEE, Hak-Jun
IPC分类号： H02M7/5387 , H02M1/12 , H02P27/08 , H02M7/5395
CPC分类号： H02M7/44 , H02M1/12 , H02M7/483 , H02M7/497 , H02M7/53873 , H02M2001/0025 , H02M2007/53876 , H02P27/08 , H02P27/085 , H02P2209/13
摘要： An offset voltage generator including: a first limiter (502a) configured to compare a first phase-voltage signal with a maximum limit value and a minimum limit value to output a first limit-voltage signal; a second limiter (502b) configured to compare a second phase-voltage signal with the maximum limit value and the minimum limit value to output a second limit-voltage signal; a third limiter (502c) configured to compare a third phase-voltage signal with the maximum limit value and the minimum limit value to output a third limit-voltage signal; and a summer (504) configured to add a difference between the first phase-voltage signal and the first limit-voltage signal, a difference between the second phase-voltage signal and the second limit-voltage signal, and a difference between the third phase-voltage signal and the third limit-voltage signal, to output an offset voltage.

3. 发明授权

EP3068024B1 Verfahren zur Ansteuerung eines Vienna-Gleichrichters 有权转让
标题翻译：控制维也纳整流器的方法
公开(公告)号：EP3068024B1
公开(公告)日：2018-01-31
申请号：EP15158195.6
申请日：2015-03-09
申请人： Siemens Aktiengesellschaft
发明人： Nieberlein, Klaus , Schierling, Hubert
IPC分类号： H02M1/42 , H02M7/219
CPC分类号： H02M7/06 , H02M1/4216 , H02M7/219 , H02M2007/53876 , Y02B70/126

4. 发明公开

EP2395652A3 Systems and methods for reducing AC drive common-mode currents 有权转让
标题翻译：减少交流驱动共模电流的系统和方法
公开(公告)号：EP2395652A3
公开(公告)日：2017-08-09
申请号：EP11162626.3
申请日：2011-04-15
申请人： Rockwell Automation Inc.
发明人： Tallam, Rangarajan M. , Leggate, David , Lukaszewski, Richard A. , Kirschnik, David W.
IPC分类号： H02M7/5387 , H02M1/44 , H02M7/5395 , H02M1/12
CPC分类号： H02M1/44 , H02M7/5395 , H02M2001/123 , H02M2007/53876
摘要： Control systems, methods and power conversion systems are presented for controlling common mode currents in power converters, in which feedback signals used in pulse width modulated inverter switching control are selectively adjusted to ensure minimum differences between the resulting common mode compensated feedback signals according to a common mode dwell time in each pulse width modulation period, with the common mode dwell time being adjusted according to modulation index.
摘要翻译：介绍了用于控制功率变换器中的共模电流的控制系统，方法和功率变换系统，其中选择性地调节脉宽调制逆变器开关控制中使用的反馈信号以确保根据公共共模补偿的反馈信号之间的最小差异在每个脉宽调制周期内模式停留时间，共模停留时间根据调制指数进行调整。

5. 发明公开

EP3188336A1 THREE-LEVEL PHOTOVOLTAIC INVERTER PULSE WIDTH MODULATION METHOD AND MODULATOR 有权
标题翻译：三电平光伏逆变器脉宽调制方法及调制器
公开(公告)号：EP3188336A1
公开(公告)日：2017-07-05
申请号：EP15836712.8
申请日：2015-05-08
申请人： Sungrow Power Supply Co., Ltd.
发明人： LI, Xiaoxun , HAN, Zhiqiang , LI, Haoyuan , MEI, Xiaodong , YANG, Benhe , SHEN, Kai
IPC分类号： H02J3/38 , H02M7/5395
CPC分类号： H02M7/5395 , H02H7/1225 , H02J3/383 , H02M1/083 , H02M7/487 , H02M2001/0048 , H02M2007/53876 , H02S40/32 , H02S50/10 , Y02E10/563
摘要： A three-level photovoltaic inverter pulse width modulation method and a three-level photovoltaic inverter pulse width modulator. The method comprises: when it is detected that potential safety hazards exist in a three-level photovoltaic inverter, switching the pulse width modulation mode of the three-level photovoltaic inverter into a 13-vector space vector pulse width modulation (SVPWM) mode (102), to solve the fault or abnormal problems in the three-level photovoltaic inverter such as midpoint potential offset or excessively large common mode leakage current formed when the ground stray capacitance of a photovoltaic assembly is large, wherein according to the 13-vector SVPWM mode, 12 short vectors in 27 on-off state vectors of the three-level photovoltaic inverter are abandoned, and only six long vectors, six middle vectors and three zero vectors are reserved.
摘要翻译：一种三电平光伏逆变器脉宽调制方法和一种三电平光伏逆变器脉宽调制器。该方法包括：当检测到三电平光伏逆变器存在安全隐患时，将三电平光伏逆变器的脉宽调制方式切换为13矢量空间矢量脉宽调制（SVPWM）方式（102 ），以解决三电平光伏逆变器的故障或异常问题，如光伏组件的接地杂散电容较大时形成的中点电位偏移或过大的共模漏电流，其中根据13矢量SVPWM模式，抛弃了三电平光伏逆变器的27个开关状态矢量中的12个短矢量，并且仅保留6个长矢量，6个中矢量和3个零矢量。

6. 发明公开

EP2200166A3 Belastungsverteilung in einem Wechselrichter zur Verringerung seiner Belastung 审中-公开
标题翻译：在逆变器，以减少其负载应力分布
公开(公告)号：EP2200166A3
公开(公告)日：2016-10-12
申请号：EP09178467.8
申请日：2009-12-09
申请人： Robert Bosch GmbH
发明人： Poetzl, Thomas , Spraul, Manfred
IPC分类号： H02M7/217 , H02M7/219 , H02M7/48 , H02M7/5387
CPC分类号： H02M7/219 , H02M7/2173 , H02M7/48 , H02M7/53875 , H02M2007/53876
摘要： Zusammen mit einem Steuerungsverfahren betreibt eine Steuerungsvorrichtung (14) für einen Wechselrichter (10) den Wechselrichter (10) zeitweise in einem von mindestens einem möglichen Antriebsschaltzustand (t 1 ..t 6 ) und zu anderen Zeiten zeitweise in einem von mindestens zwei möglichen Freilaufzuständen (t 0 , t 7 ) um die Belastung des Wechselrichters zu verringern. Die Steuerungsvorrichtung (14) weist eine Auswahlfunktion (33, 40) auf, die einen während Freilaufzeiten des Wechselrichters (10) verwendeten Freilaufzustand (t 0 , t 7 ) aus den mindestens zwei möglichen Freilaufzuständen (t 0 , t 7 ) unter Berücksichtigung einer Belastung P(I Sij ) mindestens eines der Zweige und/oder mindestens eines der Stromventile (S ij ) des Wechselrichters (10) auswählt. Ein Wechselrichter (10), der mindestens zwei Zweige umfasst, von denen jeder mindestens ein Stromventil (S ij ) und mindestens einen Ausgang (K i ) zum Anschluss einer elektrischen Last (12) aufweist, umfasst eine solche Steuerungsvorrichtung (14).

7. 发明公开

EP2207259A3 Systems and methods for common-mode voltage reduction in AC drives 有权
标题翻译：用于交流驱动器减小共模电压的系统和方法
公开(公告)号：EP2207259A3
公开(公告)日：2016-07-13
申请号：EP10150260.7
申请日：2010-01-07
申请人： Rockwell Automation Technologies, Inc.
发明人： Tallam, Rangarajan , Kerkman, Russel , Leggate, David
IPC分类号： H02M7/5387 , H02M1/44
CPC分类号： H02M1/44 , H02M7/5387 , H02M2001/123 , H02M2007/53876
摘要： Control systems, methods and power conversion systems (110) are presented for controlling common mode voltages in AC motor loads driven by inverter PWM control using switching sequences (162) with only active vectors where a first vector of each switching sequence differs by one phase switching state from a last vector of a switching sequence of an adjacent sector, along with enhanced deadtime compensation and reflected wave reduction techniques in providing pulse width modulated switching signals (142b) to a switching inverter (110b).

8. 发明授权

EP2865093B1 VERFAHREN UND VORRICHTUNG ZUM ANSTEUERN EINES WECHSELRICHTERS 有权
标题翻译：方法和一种控制A逆变器
公开(公告)号：EP2865093B1
公开(公告)日：2016-06-08
申请号：EP13717961.0
申请日：2013-04-23
申请人： Robert Bosch GmbH
发明人： DEFLORIO, Andrea , MERKEL, Tino , SCHUSTER, Ulrich , HIRSCH, Michele
IPC分类号： H02M7/5387 , H02P21/06 , H02M1/00 , H02M1/32 , H02M7/48
CPC分类号： H02M7/48 , H02M1/32 , H02M7/53875 , H02M2001/0054 , H02M2001/327 , H02M2007/53876 , H02P21/06 , Y02B70/1491

9. 发明公开

EP2503680A3 Control circuit for controlling power conversion circuit, inverter apparatus including the control circuit, and interconnection inverter system including inverter apparatus 审中-公开
标题翻译：用于控制功率转换电路，其具有控制电路，并与Verbindungsumrichtersystem逆变器逆变器装置的控制电路
公开(公告)号：EP2503680A3
公开(公告)日：2016-06-01
申请号：EP12159275.2
申请日：2012-03-13
申请人： Daihen Corporation
发明人： Hattori, Nobuyuki , Ohori, Akihiro , Munechika, Hiroki
IPC分类号： H02M7/5387 , H02M7/487 , H02M7/5395 , H02M1/00
CPC分类号： H02M7/44 , H02M1/12 , H02M7/487 , H02M7/5387 , H02M7/5395 , H02M2001/0025 , H02M2001/0054 , H02M2007/53876 , Y02B70/1491
摘要： A control circuit reduces switching loss by periodically stopping switching elements, and reduces the difference between the time for which positive switching elements are in on state and the time for which negative switching elements are in on state. The control circuit includes a command value signal generator generating command value signals Xu1, Xv1, and Xw1 from line voltage command value signals Xuv, Xvw, and Xwu, and includes a PWM signal generator generating PWM signals by the command value signals Xu1, Xv1, and Xw1. The command value signals Xu1, Xv1, and Xw1 are continuously at "0" for a predetermined period, and are continuously at "2" for another period. This enables reducing the difference between the period for which the PWM signals are low and the period for which they are highl.

10. 发明公开

EP2871767A3 Modulation of Switching Signals in Power Inverters 审中-公开
标题翻译：的信号在反相器电路的调制
公开(公告)号：EP2871767A3
公开(公告)日：2015-12-23
申请号：EP14192465.4
申请日：2014-11-10
申请人： Control Techniques Ltd
发明人： Hart, Simon David , Webster, Antony John
IPC分类号： H02M7/5387
CPC分类号： H02M7/537 , H02M1/12 , H02M7/53873 , H02M2007/53876
摘要： A method of driving a power conversion system is provided, the power conversion system comprising a DC source and an inverter coupled to the DC source and configured to receive DC power from the DC source, the inverter comprising one or more AC terminals for supplying AC power at an output frequency and an inverter switching network comprising a plurality of inverter switches for converting the DC power to the AC power. The method comprises: applying control signals to the inverter switching network in accordance with a selected switching sequence, wherein a switching sequence is applied corresponding to a desired sector of a switching scheme in which a demand vector is currently located, the switching scheme corresponding to the demand vector in a space vector modulation scheme having stationary active vectors around the periphery and a stationary zero vector at an origin; storing a plurality of simultaneous switching schemes in which, for a single switching cycle, a switch in each of at least two phases of the inverter switching network is switched simultaneously from a first state to a second state with a corresponding switch in at least one other phase of the inverter switching network being in a given state and in which the switch in each of the at least two phases is switched simultaneously from the second state to the first state with the switch in the at least one other phase being in the given state; and at low output frequency, applying a simultaneous switching sequence by applying a first of the simultaneous switching schemes in dependence on the position of the demand vector in relation to the stationary active vectors. A corresponding power conversion system and switch controller for a power conversion system are also provided.

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