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1.发明授权公开(公告)号：US06900619B2
公开(公告)日：2005-05-31
申请号：US09449378
申请日：1999-11-24
CPC分类号： H02J3/1828 , Y02E40/30
摘要： The invention features a system and approach for minimizing the step voltage change as seen by the utility customer as well minimizing transients imposed on the fundamental waveform of a normal voltage carried on a utility power network when a reactive power source (e.g., capacitor bank) is instantaneously connected to the utility power. The reactive power source is adapted to transfer reactive power of a first polarity (e.g., capacitive reactive power) to the utility power network. The system includes a reactive power compensation device configured to transfer a variable quantity of reactive power of a second, opposite polarity to the utility power network, and a controller which, in response to the need to connect the shunt reactive power source to the utility power network, activates the reactive power compensation device and, substantially simultaneously, causes the shunt reactive power source to be connected to the utility power.
摘要翻译： 本发明的特征在于一种系统和方法，用于使公用事业客户所看到的阶跃电压变化最小化，并且当无功电源（例如，电容器组）为...时，最小化施加在公用电力网络上承载的正常电压的基波形的瞬变 瞬间连接到公用电源。 无功功率源适于将第一极性（例如，电容性无功功率）的无功功率传送到公用电力网络。 该系统包括无功功率补偿装置，其被配置为向公用电力网络传送可变量的具有第二相反极性的无功功率;以及控制器，其响应于将分流无功功率源连接到公用电力的需要 网络，激活无功功率补偿装置，并且基本上同时地使分流无功电源连接到公用电力。
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公开(公告)号：US07989983B2
公开(公告)日：2011-08-02
申请号：US12625093
申请日：2009-11-24
申请人： Douglas C. Folts , Arnold P. Kehrli
发明人： Douglas C. Folts , Arnold P. Kehrli
IPC分类号： H02J1/00
CPC分类号： H02J3/383 , Y02E10/563 , Y10T307/50 , Y10T307/707
摘要： In a general aspect, a power conversion system includes a power converter, a transformer, and a voltage adjustment device. The power converter is configured to receive a variable DC power generated by a power generation device and to convert the received DC power to AC power at a first voltage. The transformer is configured to receive the AC power from the power converter and to deliver AC power at a second voltage to a utility power network. The voltage adjustment device is configured to adjust the first voltage to a target value determined on the basis of a voltage of the DC power.
摘要翻译： 在一般方面，电力转换系统包括功率转换器，变压器和电压调节装置。 电力转换器被配置为接收由发电装置产生的可变直流电力，并且将接收到的直流电力转换为第一电压的交流电力。 变压器被配置为从电力转换器接收AC电力并且将第二电压的AC电力提供给公共电力网络。 电压调整装置被配置为将第一电压调整到基于DC电力的电压确定的目标值。
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公开(公告)号：US20120033468A1
公开(公告)日：2012-02-09
申请号：US13195950
申请日：2011-08-02
申请人： Douglas C. Folts , Arnold P. Kehrli
发明人： Douglas C. Folts , Arnold P. Kehrli
IPC分类号： H02M7/00
CPC分类号： H02J3/383 , Y02E10/563 , Y10T307/50 , Y10T307/707
摘要： In a general aspect, a power conversion system includes a power converter, a transformer, and a voltage adjustment device. The power converter is configured to receive a variable DC power generated by a power generation device and to convert the received DC power to AC power at a first voltage. The transformer is configured to receive the AC power from the power converter and to deliver AC power at a second voltage to a utility power network. The voltage adjustment device is configured to adjust the first voltage to a target value determined on the basis of a voltage of the DC power.
摘要翻译： 在一般方面，电力转换系统包括功率转换器，变压器和电压调节装置。 电力转换器被配置为接收由发电装置产生的可变直流电力，并且将接收到的直流电力转换为第一电压的交流电力。 变压器被配置为从电力转换器接收AC电力并且将第二电压的AC电力提供给公共电力网络。 电压调整装置被配置为将第一电压调整到基于DC电力的电压确定的目标值。
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公开(公告)号：US20100277002A1
公开(公告)日：2010-11-04
申请号：US12625093
申请日：2009-11-24
申请人： Douglas C. Folts , Arnold P. Kehrli
发明人： Douglas C. Folts , Arnold P. Kehrli
IPC分类号： H02M7/44
CPC分类号： H02J3/383 , Y02E10/563 , Y10T307/50 , Y10T307/707
摘要： In a general aspect, a power conversion system includes a power converter, a transformer, and a voltage adjustment device. The power converter is configured to receive a variable DC power generated by a power generation device and to convert the received DC power to AC power at a first voltage. The transformer is configured to receive the AC power from the power converter and to deliver AC power at a second voltage to a utility power network. The voltage adjustment device is configured to adjust the first voltage to a target value determined on the basis of a voltage of the DC power.
摘要翻译： 在一般方面，电力转换系统包括功率转换器，变压器和电压调节装置。 电力转换器被配置为接收由发电装置产生的可变直流电力，并且将接收到的直流电力转换为第一电压的交流电力。 变压器被配置为从电力转换器接收AC电力并且将第二电压的AC电力提供给公共电力网络。 电压调整装置被配置为将第一电压调整到基于DC电力的电压确定的目标值。
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公开(公告)号：US06906434B1
公开(公告)日：2005-06-14
申请号：US09449435
申请日：1999-11-24
申请人： Paul Frederick Koeppe , Arnold P. Kehrli , John A. Diaz De Leon, II , Donald L. Brown , Warren Elliott Buckles , Douglas C. Folts
发明人： Paul Frederick Koeppe , Arnold P. Kehrli , John A. Diaz De Leon, II , Donald L. Brown , Warren Elliott Buckles , Douglas C. Folts
CPC分类号： H02J3/185 , Y02E40/10 , Y02E40/24 , Y02E40/67 , Y10T307/615
摘要： a voltage recovery device is configured to provide real and reactive power to a utility power network at a sufficient level and for a sufficient duration to recover the voltage on the utility power network within a predetermined proportion of the nominal voltage, following a fault condition detected on the utility power network. Moreover, the voltage recovery device reduces the overall transmission losses in a utility power system.
摘要翻译： 电压恢复装置被配置为在公用电力网络上以足够的水平提供实际和无功功率，并且在足够的持续时间内，在公用电力网络的预定比例的额定电压之内，在检测到的故障条件之后恢复公用电力网络上的电压 公用电力网络。 此外，电压恢复装置降低了公用电力系统中的总体传输损耗。
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公开(公告)号：US06337562B1
公开(公告)日：2002-01-08
申请号：US09449378
申请日：1999-11-24
IPC分类号： G05F170
摘要： The invention features a system and approach for minimizing the step voltage change as seen by the utility customer as well minimizing transients imposed on the fundamental waveform of a normal voltage carried on a utility power network when a reactive power source (e.g., capacitor bank) is instantaneously connected to the utility power. The reactive power source is adapted to transfer reactive power of a first polarity (e.g., capacitive reactive power) to the utility power network. The system includes a reactive power compensation device configured to transfer a variable quantity of reactive power of a second, opposite polarity to the utility power network, and a controller which, in response to the need to connect the shunt reactive power source to the utility power network, activates the reactive power compensation device and, substantially simultaneously, causes the shunt reactive power source to be connected to the utility power.
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7.发明授权公开(公告)号：US07265521B2
公开(公告)日：2007-09-04
申请号：US11136333
申请日：2005-05-24
IPC分类号： G05F1/70
CPC分类号： H02J3/1828 , Y02E40/30
摘要： The invention features a system and approach for minimizing the step voltage change as seen by the utility customer as well minimizing transients imposed on the fundamental waveform of a normal voltage carried on a utility power network when a reactive power source (e.g., capacitor bank) is instantaneously connected to the utility power. The reactive power source is adapted to transfer reactive power of a first polarity (e.g., capacitive reactive power) to the utility power network. The system includes a reactive power compensation device configured to transfer a variable quantity of reactive power of a second, opposite polarity to the utility power network, and a controller which, in response to the need to connect the shunt reactive power source to the utility power network, activates the reactive power compensation device and, substantially simultaneously, causes the shunt reactive power source to be connected to the utility power.
摘要翻译： 本发明的特征在于一种系统和方法，用于使公用事业客户所看到的阶跃电压变化最小化，并且当无功电源（例如，电容器组）为...时，最小化施加在公用电力网络上承载的正常电压的基波形的瞬变 瞬间连接到公用电源。 无功功率源适于将第一极性（例如，电容性无功功率）的无功功率传送到公用电力网络。 该系统包括无功功率补偿装置，其被配置为向公用电力网络传送可变量的具有第二相反极性的无功功率;以及控制器，其响应于将分流无功功率源连接到公用电力的需要 网络，激活无功功率补偿装置，并且基本上同时地使分流无功电源连接到公用电力。
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公开(公告)号：US07091703B2
公开(公告)日：2006-08-15
申请号：US10794398
申请日：2004-03-04
IPC分类号： G05F1/70
CPC分类号： H02J3/1828 , Y02E40/30
摘要： The invention features a system for connection to a utility power network. The system includes a reactive power compensation device coupled to the network and configured to transfer reactive power between the utility power network and the reactive power compensation device; a capacitor system configured to transfer capacitive reactive power between the utility power network and the capacitor system; an electro-mechanical switch for connecting and disconnecting the capacitor system to the utility power network; an interface associated with the electro-mechanical switch; a controller configured to provide control signals for controlling the electro-mechanical switch; and a communication channel for coupling the controller to the interface associated with the electro-mechanical switch. The electro-mechanical switch, interface, controller, and communication channel together are configured to connect or disconnect the capacitor system from the utility power network within about three line cycles or less of the nominal voltage frequency when a fault condition is detected on the utility power network.
摘要翻译： 本发明的特征在于用于连接到公共电力网络的系统。 该系统包括耦合到网络并被配置为在公用电力网络和无功功率补偿装置之间传送无功功率的无功功率补偿装置; 电容器系统，被配置为在所述公用电力网络和所述电容器系统之间传送容性无功功率; 用于将电容器系统连接到公用电力网络的电动机械开关; 与机电开关相关的接口; 控制器，被配置为提供用于控制所述机电开关的控制信号; 以及用于将控制器耦合到与机电开关相关联的接口的通信通道。 机电开关，接口，控制器和通信通道一起被配置为在公用电力网络中检测到故障条件时，在公用电力网络的大约三个线路周期内或更短的时间内将电容器系统与公用电力网络连接或断开 网络。
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公开(公告)号：US06987331B2
公开(公告)日：2006-01-17
申请号：US09944791
申请日：2001-08-31
申请人： Paul Frederick Koeppe , Arnold P. Kehrli , Donald L. Brown , Warren Elliott Buckles , John A. Diaz De Leon, III , Douglas C. Folts
发明人： Paul Frederick Koeppe , Arnold P. Kehrli , Donald L. Brown , Warren Elliott Buckles , John A. Diaz De Leon, III , Douglas C. Folts
IPC分类号： H02J7/00
CPC分类号： H02J3/32 , H02J3/185 , Y02E40/10 , Y02E40/24 , Y02E40/67 , Y10T307/615 , Y10T307/625 , Y10T307/642 , Y10T307/707 , Y10T307/713 , Y10T307/718
摘要： A voltage recovery device is configured to provide reactive power to a utility power network at a level and for a duration sufficient to recover the voltage on the utility power network within a predetermined proportion of the nominal voltage, following a fault condition detected on the utility power network. In operation, the voltage recovery device reduces the overall transmission losses in a utility power system.
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10.发明授权Method and system for providing voltage support to a load connected to a utility power network 有权为连接到公用电力网络的负载提供电压支持的方法和系统公开(公告)号：US06392856B1
公开(公告)日：2002-05-21
申请号：US09556226
申请日：2000-04-24
IPC分类号： H02H300
摘要： A voltage recovery system and its method of operation provides voltage protection to a load connected to a distribution network of a utility power system or network by boosting the voltage on a distribution line, during a momentary voltage sag caused by a fault or other contingency. The method includes voltage protection from a voltage recovery system to a load connected to a distribution network of a utility power network. A voltage protection characteristic required by the load is selected. On the basis of electrical characteristics of the voltage recovery system and the distribution network, a determination is made as to whether the voltage recovery system is capable of providing the required first voltage protection characteristic. Determining whether the voltage recovery system is capable of providing the required voltage protection characteristic includes determining a fault current capability characteristic of the distribution network and the maximum voltage improvement characteristic that the voltage recovery system can provide. If the voltage protection characteristic is greater than the maximum voltage improvement characteristic, the fault current capability characteristic and the maximum voltage improvement characteristic are used to determine an impedance in the form of an inductor to be added to the distribution network.
摘要翻译： 电压恢复系统及其操作方法通过在由故障或其他偶然事件引起的瞬间电压骤降期间升高配电线路上的电压，向连接到公用电力系统或网络的配电网络的负载提供电压保护。 该方法包括从电压恢复系统到连接到公用电力网络的配电网络的负载的电压保护。 选择负载所需的电压保护特性。 基于电压恢复系统和分配网络的电气特性，确定电压恢复系统是否能够提供所需的第一电压保护特性。 确定电压恢复系统是否能够提供所需的电压保护特性包括确定分配网络的故障电流能力特性和电压恢复系统可提供的最大电压改善特性。 如果电压保护特性大于最大电压改善特性，则使用故障电流能力特性和最大电压改善特性来确定要添加到配电网络的电感器形式的阻抗。
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