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1. 发明公开

EP1968180A2 Multi level inverter using cascade configuration and control method thereof 有权
标题翻译： Mehrstufiger Umrichter mit Kaskadenkonfiguration und Steuerverfahrendafür
公开(公告)号：EP1968180A2
公开(公告)日：2008-09-10
申请号：EP08003358.2
申请日：2008-02-25
申请人： LS Industrial Systems Co., Ltd
发明人： Jang, Han-Keun
IPC分类号： H02M7/49
CPC分类号： H02M7/49 , H02M2001/0003 , H02P23/26 , H02P27/08 , H02P27/14
摘要： A multilevel inverter using a cascade configuration with a device for equally controlling a power factor for each unit cell includes: a master controller (1), a plurality of power cells (4-1,4-2,...,4-n) connected in series for each of three AC (Alternating Current) phases, a phase shift transformer for supplying a power cell input voltage, a communication network (2) to provide a communication path between the master controller (1) and each power cell (4-1,4-2,...,4-n), and cell controllers (3-1,3-2,...,3-n) to control output voltages and output frequencies of the respective power cells according to a voltage command and a frequency command from the master controller (1), each cell controller (3-1,3-2,...,3-n) having a pulse width modulator to generate a pulse width modulation control signal of a variable voltage and a variable frequency to the connected corresponding power cell (4-1,4-2,...,4-n), wherein each cell controller (3-1,3-2,...,3-n) is configured to calculate a phase difference value of the corresponding power cell according to a predetermined total number of connected power cells and the floor number (i.e., the serial connection sequence) of the corresponding power cell to thereafter phase-shift a chopping wave by the calculated phase difference value, thereby compensating for the phase differences between each power cell (4-1,4-2,...,4-n).
摘要翻译：使用级联配置的多电平逆变器与用于同样控制每个单位电池的功率因数的装置包括：主控制器（1），多个功率单元（4-1,4-2，...，4-n ），用于提供电力单元输入电压的相移变压器，用于提供主控制器（1）和每个功率单元（1）之间的通信路径的通信网络（2） 4-1,4-2，...，4-n）和单元控制器（3-1,3-2，...，3-n），用于根据各个功率单元的输出电压和输出频率对来自主控制器（1）的电压指令和频率指令，具有脉冲宽度调制器的每个单元控制器（3-1,3-2，...，3-n）产生脉宽调制控制信号可变电压和可变频率到所连接的相应功率单元（4-1,4-2，...，4-n），其中每个单元控制器（3-1,3-2，...，3- n）被配置为计算相位不同根据预定的连接功率单元的总数和对应的功率单元的楼层数（即，串行连接顺序）对相应的功率单元的输入值进行相位移除斩波以计算出的相位差值，由此补偿每个功率单元（4-1,4-2，...，4-n）之间的相位差。

2. 发明公开

EP1968180A3 Multi level inverter using cascade configuration and control method thereof 有权
标题翻译：与级联配置及其控制方法的多电平逆变器
公开(公告)号：EP1968180A3
公开(公告)日：2014-04-02
申请号：EP08003358.2
申请日：2008-02-25
申请人： LS Industrial Systems Co., Ltd
发明人： Jang, Han-Keun
IPC分类号： H02M7/49 , H02P23/00 , H02P27/08
CPC分类号： H02M7/49 , H02M2001/0003 , H02P23/26 , H02P27/08 , H02P27/14
摘要： A multilevel inverter using a cascade configuration with a device for equally controlling a power factor for each unit cell includes: a master controller (1), a plurality of power cells (4-1,4-2,...,4-n) connected in series for each of three AC (Alternating Current) phases, a phase shift transformer for supplying a power cell input voltage, a communication network (2) to provide a communication path between the master controller (1) and each power cell (4-1,4-2,...,4-n), and cell controllers (3-1,3-2,...,3-n) to control output voltages and output frequencies of the respective power cells according to a voltage command and a frequency command from the master controller (1), each cell controller (3-1,3-2,...,3-n) having a pulse width modulator to generate a pulse width modulation control signal of a variable voltage and a variable frequency to the connected corresponding power cell (4-1,4-2,...,4-n), wherein each cell controller (3-1,3-2,...,3-n) is configured to calculate a phase difference value of the corresponding power cell according to a predetermined total number of connected power cells and the floor number (i.e., the serial connection sequence) of the corresponding power cell to thereafter phase-shift a chopping wave by the calculated phase difference value, thereby compensating for the phase differences between each power cell (4-1,4-2,...,4-n).

3. 发明授权

EP1968180B1 Multi level inverter using cascade configuration and control method thereof 有权
标题翻译：采用级联配置的多电平逆变器及其控制方法
公开(公告)号：EP1968180B1
公开(公告)日：2018-04-04
申请号：EP08003358.2
申请日：2008-02-25
申请人： LS Industrial Systems Co., Ltd
发明人： Jang, Han-Keun
IPC分类号： H02M7/49 , H02P23/00 , H02P27/08
CPC分类号： H02M7/49 , H02M2001/0003 , H02P23/26 , H02P27/08 , H02P27/14
摘要： A multilevel inverter using a cascade configuration with a device for equally controlling a power factor for each unit cell includes: a master controller (1), a plurality of power cells (4-1,4-2,...,4-n) connected in series for each of three AC (Alternating Current) phases, a phase shift transformer for supplying a power cell input voltage, a communication network (2) to provide a communication path between the master controller (1) and each power cell (4-1,4-2,...,4-n), and cell controllers (3-1,3-2,...,3-n) to control output voltages and output frequencies of the respective power cells according to a voltage command and a frequency command from the master controller (1), each cell controller (3-1,3-2,...,3-n) having a pulse width modulator to generate a pulse width modulation control signal of a variable voltage and a variable frequency to the connected corresponding power cell (4-1,4-2,...,4-n), wherein each cell controller (3-1,3-2,...,3-n) is configured to calculate a phase difference value of the corresponding power cell according to a predetermined total number of connected power cells and the floor number (i.e., the serial connection sequence) of the corresponding power cell to thereafter phase-shift a chopping wave by the calculated phase difference value, thereby compensating for the phase differences between each power cell (4-1,4-2,...,4-n).

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