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1. 发明申请

WO2011153427A3 DETECTION OF WELDED SWITCH CONTACTS IN A LINE CONVERTER SYSTEM 审中-公开
标题翻译：检测线路转换器系统中的焊接开关触点
公开(公告)号：WO2011153427A3
公开(公告)日：2013-10-17
申请号：PCT/US2011039053
申请日：2011-06-03
申请人： ABB INC , ABB OY , GOKHALE KALYAN P , KARRAKER DOUGLAS W , PAJARI ILKKA T , JUSSILA MATTI T
发明人： GOKHALE KALYAN P , KARRAKER DOUGLAS W , PAJARI ILKKA T , JUSSILA MATTI T
IPC分类号： H02M7/48 , H01H47/00
CPC分类号： H02M1/32
摘要： A system for the detection of welded contacts in a circuit of a line converter system has a plurality of inverter switches ( S1-S4), a plurality of utility switches (Kappa1-Kappa4) in which a pair of utility switches is connected in series through a line to a utility (34), a voltage detector (12), an electronic controller (10), and a DC input source (32). The line converter system converts incoming DC power into AC output power that is delivered to the utility grid (34). The voltage detector (12) measures the voltage across a first node (X) and a second node (Y) of the circuit and provides an output that is interpreted by an electronic controller (10) for each step performed during a method of detection of welded contacts. The detection method has a sequence of test steps in which at least one switch (K1-K4) is opened and/or closed, a DC bus (31) of the inverter or the utility grid (34) is used as a stimulus voltage, and the voltage is measured. If a voltage is not detected across the first and second nodes, the test sequence is continued until a welded contact is detected or the electronic controller determines that none of the contacts are welded.
摘要翻译：用于检测线路转换器系统的电路中的焊接触头的系统具有多个逆变器开关（S1-S4），多个效用开关（Kappa1-Kappa4），其中一对效用开关串联连接到公用设施（34），电压检测器（12），电子控制器（10）和DC输入源（32）的线路。线路转换器系统将输入的DC电力转换成被输送到公用电网（34）的AC输出功率。电压检测器（12）测量电路的第一节点（X）和第二节点（Y）上的电压，并提供由电子控制器（10）解释的用于在检测方法期间执行的每个步骤的输出焊接接点该检测方法具有一系列测试步骤，其中至少一个开关（K1-K4）被打开和/或关闭，逆变器或公用电网（34）的DC总线（31）被用作刺激电压，并测量电压。如果在第一和第二节点之间没有检测到电压，则继续测试序列直到检测到焊接接触点，或者电子控制器确定没有焊接接触点。

2. 发明申请

WO2011156199A3 INVERTER FOR SOLAR CELL ARRAY 审中-公开
标题翻译：太阳能电池阵列逆变器
公开(公告)号：WO2011156199A3
公开(公告)日：2012-02-02
申请号：PCT/US2011038882
申请日：2011-06-02
申请人： ABB INC , ABB OY , KARRAKER DOUGLAS W , GOKHALE KALYAN P , JUSSILA MATTI T
发明人： KARRAKER DOUGLAS W , GOKHALE KALYAN P , JUSSILA MATTI T
IPC分类号： H02M7/487 , H02M1/38
CPC分类号： H02M7/487 , H02J3/383 , Y02E10/563
摘要： A full-bridge, NPC inverter uses pulse width modulation (PWM) to convert the DC voltage from a solar panel array to an AC voltage at the output of the inverter that is acceptable for connection to a utility. The PWM control unit has a predetermined carrier frequency. The carrier unit uses for each carrier period either positive or negative values of a reference voltage to generate a predetermined number of signals to control the switching on and off of each of the eight inverter switching elements in a predetermined pattern for a predetermined period of the carrier frequency period to thereby produce the acceptable alternating current voltage at the inverter output and not produce between the inverter input and earth ground a carrier frequency component.
摘要翻译：全桥NPC逆变器使用脉冲宽度调制（PWM）将来自太阳能电池板阵列的直流电压转换为连接到公用设施可接受的逆变器输出端的交流电压。 PWM控制单元具有预定的载波频率。载波单元在每个载波周期使用参考电压的正值或负值，以产生预定数量的信号，以在载波的预定时段内以预定模式控制八个逆变器开关元件中的每一个的开关从而在逆变器输出端产生可接受的交流电压，并且不会在变频器输入和接地之间产生载波频率分量。

3. 发明申请

WO2011156199A2 INVERTER FOR SOLAR CELL ARRAY 审中-公开
标题翻译：太阳能电池阵列逆变器
公开(公告)号：WO2011156199A2
公开(公告)日：2011-12-15
申请号：PCT/US2011/038882
申请日：2011-06-02
申请人： ABB INC. , ABB OY , KARRAKER, Douglas, W. , GOKHALE, Kalyan, P. , JUSSILA, Matti, T.
发明人： KARRAKER, Douglas, W. , GOKHALE, Kalyan, P. , JUSSILA, Matti, T.
IPC分类号： H02M7/487
CPC分类号： H02M7/487 , H02J3/383 , Y02E10/563
摘要： A full-bridge, NPC inverter uses pulse width modulation (PWM) to convert the DC voltage from a solar panel array to an AC voltage at the output of the inverter that is acceptable for connection to a utility. The PWM control unit has a predetermined carrier frequency. The carrier unit uses for each carrier period either positive or negative values of a reference voltage to generate a predetermined number of signals to control the switching on and off of each of the eight inverter switching elements in a predetermined pattern for a predetermined period of the carrier frequency period to thereby produce the acceptable alternating current voltage at the inverter output and not produce between the inverter input and earth ground a carrier frequency component.
摘要翻译：全桥NPC逆变器使用脉冲宽度调制（PWM）将来自太阳能电池板阵列的直流电压转换为连接到公用设施可接受的逆变器输出端的交流电压。 PWM控制单元具有预定的载波频率。载波单元在每个载波周期使用参考电压的正值或负值，以产生预定数量的信号，以在载波的预定时段内以预定模式控制八个逆变器开关元件中的每一个的开关从而在逆变器输出端产生可接受的交流电压，并且不会在变频器输入和接地之间产生载波频率分量。

4. 发明申请

WO2011153427A2 DETECTION OF WELDED SWITCH CONTACTS IN A LINE CONVERTER SYSTEM 审中-公开
标题翻译：检测线路转换器系统中的焊接开关触点
公开(公告)号：WO2011153427A2
公开(公告)日：2011-12-08
申请号：PCT/US2011/039053
申请日：2011-06-03
申请人： ABB INC. , ABB OY , GOKHALE, Kalyan, P. , KARRAKER, Douglas, W. , PAJARI, Ilkka, T. , JUSSILA, Matti, T.
发明人： GOKHALE, Kalyan, P. , KARRAKER, Douglas, W. , PAJARI, Ilkka, T. , JUSSILA, Matti, T.
IPC分类号： H02M7/48 , H01H47/00
CPC分类号： H02M1/32
摘要： A system for the detection of welded contacts in a circuit of a line converter system has a plurality of inverter switches, a plurality of utility switches in which a pair of utility switches is connected in series through a line to a utility, a voltage detector, an electronic controller, and a DC input source. The line converter system converts incoming DC power into AC output power that is delivered to the utility grid. The voltage detector measures the voltage across a first node and a second node of the circuit and provides an output that is interpreted by an electronic controller for each step performed during a method of detection of welded contacts. The detection method has a sequence of test steps in which at least one switch is opened and/or closed, a DC bus of the inverter or the utility grid is used as a stimulus voltage, and the voltage is measured. If a voltage is not detected across the first and second nodes, the test sequence is continued until a welded contact is detected or the electronic controller determines that none of the contacts are welded. If the controller determines that none of the contacts are welded, the line converter system is permitted to connect and supply AC power to the utility.
摘要翻译：用于检测线路转换器系统的电路中的焊接触点的系统具有多个逆变器开关，多个效用开关，其中一对效用开关通过线路串联连接到公用设施，电压检测器，电子控制器和DC输入源。线路转换器系统将输入的直流电力转换成交付输出功率，并输送到公用电网。电压检测器测量电路的第一节点和第二节点上的电压，并提供由电子控制器解释的输出，用于在焊接触点的检测方法期间执行的每个步骤。检测方法具有一系列测试步骤，其中至少一个开关被打开和/或关闭，逆变器或公用电网的DC总线用作激励电压，并且测量电压。如果在第一和第二节点之间没有检测到电压，则继续测试序列直到检测到焊接接触点，或者电子控制器确定没有焊接接触点。如果控制器确定没有一个触点被焊接，则允许线路转换器系统连接并向公用设施提供AC电力。

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