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公开(公告)号：US20170063124A1
公开(公告)日：2017-03-02
申请号：US14841216
申请日：2015-08-31
申请人： Caterpillar Inc.
IPC分类号： H02J7/00
CPC分类号： H02J7/0068 , H02J1/00 , H02J7/0029 , H02J7/345
摘要： A HESS and method of controlling a HESS is provided. The HESS may comprise a common DC bus having a DC bus voltage, an energy storage device electrically coupled to the common DC bus, a power device electrically coupled to the common DC bus, and a controller in operable communication with the energy storage device, the power device and the common DC bus. The controller may be configured to, when the energy storage device is charging, increase a power device charging current if an energy storage device charging current is greater than a charging limit for the energy storage device, and when the energy storage device is discharging, increase a power device discharging current if an energy storage device discharging current is greater than a discharging limit for the energy storage device. The HESS may be part of a power system.
摘要翻译： 提供了一种控制HESS的HESS和方法。 HESS可以包括具有DC总线电压的公共DC总线，电耦合到公共DC总线的能量存储装置，电耦合到公共DC总线的功率装置，以及与能量存储装置可操作地通信的控制器 电源设备和公共直流总线。 控制器可以被配置为当能量存储装置正在充电时，如果能量存储装置的充电电流大于能量存储装置的充电限制，则增加功率装置的充电电流，并且当储能装置放电时，增加 如果能量存储装置的放电电流大于能量存储装置的放电极限，放电电流的功率器件。 HESS可能是电力系统的一部分。
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公开(公告)号：US20140265569A1
公开(公告)日：2014-09-18
申请号：US13832755
申请日：2013-03-15
申请人： CATERPILLAR INC.
IPC分类号： H02J3/00
CPC分类号： H02J9/08 , Y10T307/352 , Y10T307/615
摘要： A variable speed genset system is provided. The variable speed genset system may include a primary power source, an electric machine, an energy storage device for starting the primary power source and a boost converter. The electric machine may be mechanically coupled to the primary power source and electrically coupled to one or more loads through a common bus. The boost converter may be in electrical communication with each of at least the common bus and the energy storage device, and configured to selectively communicate power from the energy storage device to the common bus if a bus voltage of the common bus falls to a predetermined lower limit.
摘要翻译： 提供变速发电机组系统。 可变速发电机组系统可以包括主电源，电机，用于启动主电源的能量存储装置和升压转换器。 电机可以机械耦合到主电源并且通过公共总线电耦合到一个或多个负载。 升压转换器可以与至少公共总线和能量存储装置中的每个电气通信，并且被配置为如果公共总线的总线电压下降到预定的下限，则将能量选择性地从能量存储装置传送到公共总线 限制。
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公开(公告)号：US09722445B2
公开(公告)日：2017-08-01
申请号：US14841216
申请日：2015-08-31
申请人： Caterpillar Inc.
IPC分类号： H02J7/00
CPC分类号： H02J7/0068 , H02J1/00 , H02J7/0029 , H02J7/345
摘要： A hybrid energy storage system (HESS) and method of controlling a HESS is provided. The HESS comprises a common direct current (DC) bus having a DC bus voltage, an energy storage device electrically coupled to the common DC bus, a power device electrically coupled to the common DC bus, and a controller in operable communication with the energy storage device, the power device and the common DC bus. The controller is configured to, when the energy storage device is charging, increase a power device charging current if an energy storage device charging current is greater than a charging limit for the energy storage device, and when the energy storage device is discharging, increase a power device discharging current if an energy storage device discharging current is greater than a discharging limit for the energy storage device. The HESS can be part of a power system.
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公开(公告)号：US20240308592A1
公开(公告)日：2024-09-19
申请号：US18184731
申请日：2023-03-16
申请人： Caterpillar Inc.
发明人： Eric Matthew Andris
摘要： A cooling system, for circulating air through an electrical system for a work machine, includes an electrical cabinet, a chassis of the wok machine, and a blower fluidly connected to the electrical cabinet and the chassis. The electrical cabinet defines an interior volume for accommodating a plurality of electrical components of the electrical system. The chassis defines a closed-loop passageway configured to receive air from the interior volume of the electrical cabinet. The blower circulates the air through the interior volume of the electrical cabinet and the closed-loop passageway of the chassis.
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公开(公告)号：US08946915B2
公开(公告)日：2015-02-03
申请号：US13798751
申请日：2013-03-13
申请人： Caterpillar Inc.
CPC分类号： H02P9/04 , B60L15/2045 , Y02T10/645 , Y02T10/72 , Y02T10/7283
摘要： A method of determining an optimal operating speed of a variable speed genset is provided. The method may include determining whether an actual operating speed of the genset approximates a desired operating speed, the desired operating speed being predetermined based on a measured load value associated with the genset, the desired operating speed being associated with an applied offset value that is adjustable between a minimum offset value and a maximum offset value; incrementing the applied offset value of the desired operating speed to decrease the actual operating speed if the actual operating speed approximates the desired operating speed, and the applied offset value is less than the maximum offset value; and determining the desired operating speed as the optimal operating speed if the actual operating speed approximates the desired operating speed, and the applied offset value is equal to the maximum offset value.
摘要翻译： 提供了一种确定可变速度发电机组的最佳操作速度的方法。 该方法可以包括确定发电机组的实际运行速度是否近似于期望的运行速度，期望的运行速度是基于与发电机组相关联的测量的负载值来预定的，期望的运行速度与可调节的所施加的偏移值相关联 在最小偏移值和最大偏移值之间; 如果实际运行速度接近期望的运行速度，并且所施加的偏移值小于最大偏移值，则递增所需运行速度的所施加的偏移值以降低实际运行速度; 以及如果实际运行速度接近期望的运行速度，则确定期望的运行速度为最佳运行速度，并且所施加的偏移值等于最大偏移值。
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公开(公告)号：US20140265353A1
公开(公告)日：2014-09-18
申请号：US13798751
申请日：2013-03-13
申请人： CATERPILLAR INC.
IPC分类号： H02P9/04
CPC分类号： H02P9/04 , B60L15/2045 , Y02T10/645 , Y02T10/72 , Y02T10/7283
摘要： A method of determining an optimal operating speed of a variable speed genset is provided. The method may include determining whether an actual operating speed of the genset approximates a desired operating speed, the desired operating speed being predetermined based on a measured load value associated with the genset, the desired operating speed being associated with an applied offset value that is adjustable between a minimum offset value and a maximum offset value; incrementing the applied offset value of the desired operating speed to decrease the actual operating speed if the actual operating speed approximates the desired operating speed, and the applied offset value is less than the maximum offset value; and determining the desired operating speed as the optimal operating speed if the actual operating speed approximates the desired operating speed, and the applied offset value is equal to the maximum offset value.
摘要翻译： 提供了一种确定可变速度发电机组的最佳操作速度的方法。 该方法可以包括确定发电机组的实际运行速度是否近似于期望的运行速度，期望的运行速度是基于与发电机组相关联的测量的负载值来预定的，期望的运行速度与可调节的所施加的偏移值相关联 在最小偏移值和最大偏移值之间; 如果实际运行速度接近期望的运行速度，并且所施加的偏移值小于最大偏移值，则递增所需运行速度的所施加的偏移值以降低实际运行速度; 以及如果实际运行速度接近期望的运行速度，则确定期望的运行速度为最佳运行速度，并且所施加的偏移值等于最大偏移值。
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