公开(公告)号：US20130094260A1

公开(公告)日：2013-04-18

申请号：US13642456

申请日：2010-04-19

申请人： David Martini ,  Massimo Valiani ,  Simone Soldani

发明人： David Martini ,  Massimo Valiani ,  Simone Soldani

IPC分类号： H02M7/483

CPC分类号： H02M7/483 ,  H02M3/158 ,  H02M7/487 ,  H02M7/49 ,  H02M2001/007

摘要： The multi-level DC/AC converter, comprising: an input (5,7) connectable to a direct voltage source (3), with a first connection (5) and a second connection (7) between which can be applied an input voltage (Vi); a half-bridge with a first controlled switch (21) and a second controlled switch (25) between which is positioned an output (U) of the converter; a first connecting branch (15) between the first controlled switch (21) and the first connection (5) and a second connecting branch (17) between the second controlled switch (25) and the second connection (7); a third controlled switch (59) associated to the first controlled switch (21), connectable in series to the first controlled switch to generate an output voltage exceeding a first limit value (Vi/2); a fourth controlled switch (61) associated to the second controlled switch (25), connectable in series to said second controlled switch to generate an output voltage below a second limit value (−Vi/2).

摘要翻译： 所述多电平DC / AC转换器包括：可连接到直流电压源（3）的输入（5,7），具有第一连接（5）和第二连接（7），其间可以施加输入电压 （Vi）; 具有第一受控开关（21）和第二受控开关（25）的半桥，其间位于转换器的输出端（U）之间; 第一受控开关（21）和第一连接件（5）之间的第一连接分支（15）和第二受控开关（25）与第二连接件（7）之间的第二连接分支（17） 与第一受控开关（21）相关联的第三控制开关（59），可串联连接到第一受控开关以产生超过第一限制值（Vi / 2）的输出电压; 与第二受控开关（25）相关联的第四受控开关（61），其可串联连接到所述第二受控开关以产生低于第二限制值（-Vi / 2）的输出电压。

公开(公告)号：US09030857B2

公开(公告)日：2015-05-12

申请号：US13642456

申请日：2010-04-19

申请人： David Martini ,  Massimo Valiani ,  Simone Soldani

发明人： David Martini ,  Massimo Valiani ,  Simone Soldani

IPC分类号： H02M7/5387 ,  H02M7/00 ,  H02M7/483 ,  H02M7/49

CPC分类号： H02M7/483 ,  H02M3/158 ,  H02M7/487 ,  H02M7/49 ,  H02M2001/007

摘要： The multi-level DC/AC converter, comprising: an input (5,7) connectable to a direct voltage source (3), with a first connection (5) and a second connection (7) between which can be applied an input voltage (Vi); a half-bridge with a first controlled switch (21) and a second controlled switch (25) between which is positioned an output (U) of the converter; a first connecting branch (15) between the first controlled switch (21) and the first connection (5) and a second connecting branch (17) between the second controlled switch (25) and the second connection (7); a third controlled switch (59) associated to the first controlled switch (21), connectable in series to the first controlled switch to generate an output voltage exceeding a first limit value (Vi/2); a fourth controlled switch (61) associated to the second controlled switch (25), connectable in series to said second controlled switch to generate an output voltage below a second limit value (−Vi/2).

摘要翻译： 所述多电平DC / AC转换器包括：可连接到直流电压源（3）的输入（5,7），具有第一连接（5）和第二连接（7），其间可以施加输入电压 （Vi）; 具有第一受控开关（21）和第二受控开关（25）的半桥，其间位于转换器的输出端（U）之间; 第一受控开关（21）和第一连接件（5）之间的第一连接分支（15）和第二受控开关（25）与第二连接件（7）之间的第二连接分支（17） 与第一受控开关（21）相关联的第三控制开关（59），可串联连接到第一受控开关以产生超过第一限制值（Vi / 2）的输出电压; 与第二受控开关（25）相关联的第四受控开关（61），其可串联连接到所述第二受控开关以产生低于第二限制值（-Vi / 2）的输出电压。

公开(公告)号：US20150171766A1

公开(公告)日：2015-06-18

申请号：US14238170

申请日：2011-08-12

申请人： Massimo Valiani ,  David Martini ,  Andrea Marcianesi

发明人： Massimo Valiani ,  David Martini ,  Andrea Marcianesi

IPC分类号： H02M7/493 ,  H02J3/38

CPC分类号： H02M7/493 ,  H02J3/383 ,  H02J3/385 ,  H02M7/487 ,  Y02E10/563 ,  Y10T307/707

摘要： There is described an electrical energy conversion system comprising: at least a first inverter (1) and at least a second inverter (2), whose outputs are connected in parallel; at least a first DC voltage source (PV1) connected to the input of the first inverter (1) and a second DC voltage source (PV2) connected to the input of the second inverter (2); a ground connection of the first inverter (1) and a ground connection of the second inverter (2). The ground connection of said inverters comprises a ground connection branch (1G; 2G) with a current sensor (5/1; 5/2) which supplies a signal proportional to a leakage grounding current (Ileak) measured in said ground connection branch (1G; 2G). Through the signal proportional to the leakage current measured a feedback signal is generated to control the leakage current (Ileak).

摘要翻译： 描述了一种电能转换系统，包括：至少第一逆变器（1）和至少第二逆变器（2），其输出并联连接; 至少连接到第一逆变器（1）的输入的第一直流电压源（PV1）和连接到第二逆变器（2）的输入的第二直流电压源（PV2）; 第一逆变器（1）的接地连接和第二逆变器（2）的接地连接。 所述逆变器的接地连接包括具有电流传感器（5/1; 5/2）的接地连接分支（1G; 2G），其提供与在所述接地连接支路（1G）中测量的泄漏接地电流（Ileak）成比例的信号 ; 2G）。 通过与泄漏电流成比例的信号，产生反馈信号来控制漏电流（Ileak）。

公开(公告)号：US08885373B1

公开(公告)日：2014-11-11

申请号：US13414441

申请日：2012-03-07

申请人： Massimo Valiani ,  David Martini ,  Andrea Marcianesi

发明人： Massimo Valiani ,  David Martini ,  Andrea Marcianesi

IPC分类号： H02M7/48

CPC分类号： H02M7/493 ,  H02J3/381 ,  H02M1/32 ,  H02M2001/007

摘要： An energy conversion system and method perform active control of leakage current in multi-level grounded inverters. First and second subsystems each include positive and negative DC source terminals, at least first and second capacitors coupled between the positive and negative terminals to define a common bulk node for the respective subsystem, a DC/DC converter for regulating voltages across the capacitors, and an inverter. The inverters are coupled in parallel to an AC load. First and second grounding branches are homogenously coupled to terminals in the first and second subsystems, respectively, and to the same ground terminal. Control circuitry detects a leakage current value through the ground terminal, generates leakage current control signals for the respective DC/DC converters based at least in part on the detected leakage current value and a reference current value, and communicates the control signals to the DC/DC converters.

摘要翻译： 能量转换系统和方法对多级接地逆变器中的漏电流进行主动控制。 第一子系统和第二子系统各自包括正和负的直流源端子，至少第一和第二电容器耦合在正端子和负端子之间，以限定相应子系统的公共体节点，用于调节电容器两端的电压的DC / DC转换器，以及 逆变器。 逆变器与AC负载并联耦合。 第一和第二接地分支均匀地耦合到第一和第二子系统中的端子，并且连接到相同的接地端子。 控制电路通过接地端子检测泄漏电流值，至少部分地基于检测到的漏电流值和参考电流值，产生各个DC / DC转换器的泄漏电流控制信号，并将控制信号传送到DC / DC转换器。

公开(公告)号：US09866145B2

公开(公告)日：2018-01-09

申请号：US14238170

申请日：2011-08-12

申请人： Massimo Valiani ,  David Martini ,  Andrea Marcianesi

发明人： Massimo Valiani ,  David Martini ,  Andrea Marcianesi

IPC分类号： H02M7/493 ,  H02J3/38 ,  H02M7/487

CPC分类号： H02M7/493 ,  H02J3/383 ,  H02J3/385 ,  H02M7/487 ,  Y02E10/563 ,  Y10T307/707

摘要： There is described an electrical energy conversion system comprising: at least a first inverter (1) and at least a second inverter (2), whose outputs are connected in parallel; at least a first DC voltage source (PV1) connected to the input of the first inverter (1) and a second DC voltage source (PV2) connected to the input of the second inverter (2); a ground connection of the first inverter (1) and a ground connection of the second inverter (2). The ground connection of said inverters comprises a ground connection branch (1G; 2G) with a current sensor (5/1; 5/2) which supplies a signal proportional to a leakage grounding current (Ileak) measured in said ground connection branch (1G; 2G). Through the signal proportional to the leakage current measured a feedback signal is generated to control the leakage current (Ileak).

公开(公告)号：US09219597B2

公开(公告)日：2015-12-22

申请号：US13981067

申请日：2011-01-25

申请人： Massimo Valiani ,  Davide Tazzari ,  Filippo Vernia

发明人： Massimo Valiani ,  Davide Tazzari ,  Filippo Vernia

IPC分类号： H04L12/28 ,  H04L7/00 ,  H04L12/403 ,  H04L25/49 ,  H04L12/413

CPC分类号： H04L7/00 ,  H04L12/403 ,  H04L12/4135 ,  H04L25/4902

摘要： A method is described for the transmission of data among devices (D1, D2, . . . Di, . . . Dn) connected to a communication channel (1) through sequences containing at least two symbols, one dominant (“0”) and one recessive (“1”). According to this transmission method, one (DTSG) of the devices connected to the communication channel (1) has the function of time slot generator and it transmits on the communication channel (1) with a transmission frequency (f) a sequence of symbols, each defining a time slot in a sequence of time slots. The sequence of symbols comprises at least a series of recessive symbols (“1”). When one of the devices (Di) has to transmit on the communication channel (1), it generates a sequence of symbols, synchronized with the sequence of time slots generated by the time slot generator device (DTSG) and comprising at least one dominant symbol (“0”).

摘要翻译： 描述了一种通过连接到通信信道（1）的装置（D1，D2，...，...，Dn）之间通过包含至少两个符号，一个占优势（“0”）和 一个隐性（“1”）。 根据该传输方法，连接到通信信道（1）的设备中的一个（DTSG）具有时隙发生器的功能，并且以传输频率（f）在通信信道（1）上发送一系列符号， 每个在时隙序列中定义时隙。 符号序列包括至少一系列隐性符号（“1”）。 当设备（Di）中的一个必须在通信信道（1）上进行发送时，它产生与时隙发生器设备（DTSG）生成的时隙序列同步的符号序列，并且包括至少一个主要符号 （“0”）。

公开(公告)号：US20140334206A1

公开(公告)日：2014-11-13

申请号：US14236505

申请日：2011-08-02

申请人： Massimo Valiani

发明人： Massimo Valiani

IPC分类号： H02M7/537

CPC分类号： H02M7/537 ,  H02M7/487

摘要： The PWM modulating method comprises the following steps: detecting actual voltage values (Vc1, Vc1, Vc2, Vc3 . . . ) across bulk capacitors (C1, C2, C3) provided across input terminals of said inverter; calculating a duty cycle vector (D) based on electric parameters defining a rotating vector (V0) representing an output electric quantity required from the inverter; and modifying said duty cycle vector (D) as a function of said actual voltage values to re-balance said bulk capacitors.

摘要翻译： PWM调制方法包括以下步骤：检测跨越所述反相器的输入端的大容量电容器（C1，C2，C3）的实际电压值（Vc1，Vc1，Vc2，Vc3 ...） 基于限定表示从逆变器所需的输出电量的旋转矢量（V0）的电参数来计算占空比矢量（D）; 以及作为所述实际电压值的函数修改所述占空比矢量（D）以重新平衡所述大容量电容器。

公开(公告)号：US20140009988A1

公开(公告)日：2014-01-09

申请号：US13981106

申请日：2011-02-01

申请人： Massimo Valiani

发明人： Massimo Valiani

IPC分类号： H02M7/537

CPC分类号： H02M7/537 ,  H02M7/487 ,  H02M7/53875

摘要： The multi-phase inverter modulating method provides for calculating a duty cycle vector (D) calculated as a function of electric parameters defining a rotating vector (Vo) representative of an output electric quantity required from the inverter, is multiplied for a stored modulation matrix to obtain a plurality of duty cycle signals for a plurality of electronic switches of said inverter.

摘要翻译： 多相逆变器调制方法，用于计算作为表示从逆变器所需的输出电量的旋转矢量（Vo）的电参数计算的占空比矢量，将存储的调制矩阵乘以 为所述逆变器的多个电子开关获得多个占空比信号。

公开(公告)号：US08456865B1

公开(公告)日：2013-06-04

申请号：US12817726

申请日：2010-06-17

申请人： Andrea Bianchi ,  Massimo Valiani

发明人： Andrea Bianchi ,  Massimo Valiani

IPC分类号： H02M3/335 ,  H02M3/24

CPC分类号： H02J3/383 ,  H02M7/53873 ,  H02M2001/007 ,  Y02E10/563

摘要： A microinverter is provided for converting DC energy from a PV panel into a grid-compatible AC signal. A first plurality of switching elements is coupled between a DC energy source and a primary winding of a transformer. A second plurality of switching elements is coupled to a secondary winding of the transformer. Current sensors sense real time converter parameters including a DC input, an AC output, and a primary current. A digital controller determines an operating mode for the converter based on a DC input signal, with the controller further including a switch signal generator circuit configured to adjust switching states. The switch state adjustments are based on the operating mode, real time converter parameters which include the DC input signal, an AC signal for output to a grid, a primary current, and a desired shape for the AC output signal waveform.

摘要翻译： 提供了微逆变器，用于将来自PV面板的DC能量转换为电网兼容的AC信号。 第一组多个开关元件耦合在直流能源和变压器的初级绕组之间。 第二多个开关元件耦合到变压器的次级绕组。 电流传感器检测实时转换器参数，包括直流输入，交流输出和初级电流。 数字控制器基于DC输入信号确定转换器的操作模式，控制器还包括配置为调整切换状态的开关信号发生器电路。 开关状态调整基于操作模式，实时转换器参数，包括DC输入信号，用于输出到电网的AC信号，初级电流和用于AC输出信号波形的期望形状。

公开(公告)号：US20130336339A1

公开(公告)日：2013-12-19

申请号：US13981067

申请日：2011-01-25

申请人： Massimo Valiani ,  Davide Tazzari ,  Filippo Vernia

发明人： Massimo Valiani ,  Davide Tazzari ,  Filippo Vernia

IPC分类号： H04L7/00

CPC分类号： H04L7/00 ,  H04L12/403 ,  H04L12/4135 ,  H04L25/4902

摘要： A method is described for the transmission of data among devices (D1, D2, . . . Di, . . . Dn) connected to a communication channel (1) through sequences containing at least two symbols, one dominant (“0”) and one recessive (“1”). According to this transmission method, one (DTSG) of the devices connected to the communication channel (1) has the function of time slot generator and it transmits on the communication channel (1) with a transmission frequency (f) a sequence of symbols, each defining a time slot in a sequence of time slots. The sequence of symbols comprises at least a series of recessive symbols (“1”). When one of the devices (Di) has to transmit on the communication channel (1), it generates a sequence of symbols, synchronised with the sequence of time slots generated by the time slot generator device (DTSG) and comprising at least one dominant symbol (“0”).

摘要翻译： 描述了一种通过连接到通信信道（1）的装置（D1，D2，...，...，Dn）之间通过包含至少两个符号，一个占优势（“0”）和 一个隐性（“1”）。 根据该传输方法，连接到通信信道（1）的设备中的一个（DTSG）具有时隙发生器的功能，并且以传输频率（f）在通信信道（1）上发送一系列符号， 每个在时隙序列中定义时隙。 符号序列包括至少一系列隐性符号（“1”）。 当设备（Di）中的一个必须在通信信道（1）上进行发送时，它产生与时隙发生器设备（DTSG）生成的时隙序列同步的符号序列，并且包括至少一个主要符号 （“0”）。