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公开(公告)号：US09490733B2
公开(公告)日：2016-11-08
申请号：US13579464
申请日：2011-02-24
申请人： Zhiqiao Wu , Ivan Jadric
发明人： Zhiqiao Wu , Ivan Jadric
CPC分类号： H02P6/181 , H02P1/52 , H02P6/18 , H02P6/185 , H02P21/141 , H02P23/14 , H02P25/024 , H02P25/03
摘要： A method is disclosed for controlling a synchronous motor by determining a rotor position of the synchronous motor based on estimating a flux linkage. The method includes applying a voltage of a stator winding of the motor to a transfer function. The transfer function includes an S-domain integration operation and an error correction variable. An output of the transfer function is processed to compensate for the error correction variable introduced in the transfer function. An estimated flux linkage is generated and an angle of the rotor position is computed based on the flux linkage. The computed rotor position is input to a controller for controlling a position or speed of the motor.
摘要翻译： 公开了一种通过基于估计磁链来确定同步电动机的转子位置来控制同步电动机的方法。 该方法包括将电机的定子绕组的电压施加到传递函数。 传递函数包括S域积分运算和纠错变量。 处理传递函数的输出以补偿传递函数中引入的纠错变量。 产生估计的磁链，并且基于磁链来计算转子位置的角度。 计算的转子位置被输入到用于控制电动机的位置或速度的控制器。
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公开(公告)号：US07876561B2
公开(公告)日：2011-01-25
申请号：US11932479
申请日：2007-10-31
IPC分类号： H05K7/20
CPC分类号： H02M1/12 , F25B49/025 , F25B2600/021 , H02M2001/123 , H02P27/08 , H02P29/50 , H02P2201/03 , H03L7/093 , H03L7/095 , H05K7/20936 , Y02B30/741
摘要： A plastic liquid cooled variable speed drive or inductor provided. The cooler provides lightweight, space conservative, corrosive free cooling to the components as well as provides a mounting area for modules. A cooler can be mounted to the core of an inductor to absorb heat generated by the core losses.
摘要翻译： 提供塑料液冷式变速驱动器或电感器。 冷却器为组件提供轻便，空间保守，无腐蚀性的冷却，并为模块提供安装区域。 可以将冷却器安装到电感器的芯部以吸收由芯损耗产生的热量。
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公开(公告)号：US07332885B2
公开(公告)日：2008-02-19
申请号：US11422668
申请日：2006-06-07
申请人： Harold R. Schnetzka , Ivan Jadric
发明人： Harold R. Schnetzka , Ivan Jadric
摘要： A method of providing ride-through capability in a chiller/refrigeration system employs a variable speed drive with an active converter stage, a DC link stage and an inverter stage for providing variable frequency and voltage to power at least one motor. An induction motor is coupled to the output of the inverter stage for driving a compressor in the chiller/refrigeration system. The ride-through method comprises operating the active converter to regulate the DC link voltage of the DC link stage to a predetermined voltage level until the current through the active converter equals a predetermined current limit, then transferring regulation of the DC link to the inverter upon reaching the current limit of the converter. The compressor is unloaded, and the power flow through the inverter is reversed to maintain the voltage level of the DC link stage. Pre-rotation vanes, slide valve, or check valve are used to unload the compressor.
摘要翻译： 在冷冻机/制冷系统中提供穿越能力的方法采用具有有源转换器级，DC链路级和逆变器级的变速驱动器，用于提供可变频率和电压以对至少一个电动机供电。 感应电动机与变频器级的输出端连接，用于驱动冷冻机/制冷系统中的压缩机。 该直通方法包括操作有源转换器以将DC链路级的DC链路电压调节到预定的电压电平，直到通过有源转换器的电流等于预定的电流限制，然后将DC链路的调节转移到逆变器上 达到转换器的电流极限。 压缩机卸载，逆变器的功率流反转，以保持直流母线的电压电平。 预旋转叶片，滑阀或止回阀用于卸载压缩机。
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公开(公告)号：US20050225270A1
公开(公告)日：2005-10-13
申请号：US10822489
申请日：2004-04-12
申请人： Harold Schnetzka , Ivan Jadric , Scott Slothower
发明人： Harold Schnetzka , Ivan Jadric , Scott Slothower
CPC分类号： H02M5/4585 , H02M2001/008
摘要： A variable speed drive is provided having a converter to convert an AC voltage to a DC voltage, a DC link to filter and store energy from the converter, and a plurality of inverters. Each inverter is configured to convert a DC voltage to an AC voltage and is electrically connected in parallel to the DC link. An interleaved pulse width modulation control technique is used to control the operation of the plurality of inverters and possibly the converter to lower the RMS ripple current in the DC link.
摘要翻译： 提供了一种变速驱动器，其具有将AC电压转换为DC电压的转换器，用于对来自转换器的能量进行滤波和存储的DC链路以及多个逆变器。 每个逆变器被配置为将DC电压转换为AC电压并且与DC链路并联电连接。 使用交错脉宽调制控制技术来控制多个逆变器的操作以及可能的转换器来降低DC链路中的RMS纹波电流。
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公开(公告)号：US08495890B2
公开(公告)日：2013-07-30
申请号：US12629523
申请日：2009-12-02
申请人： Ivan Jadric , Steve M. Hoover , Kathleen S. Rogers , Michael S. Todd , Mathias R. Fox , Christopher J. Keizer , Ronald C. Perry , Matthew T. Boerma , Justin D. Warner , Scott V. Slothower , Julie S. Muszynski , David J. Laforme
发明人： Ivan Jadric , Steve M. Hoover , Kathleen S. Rogers , Michael S. Todd , Mathias R. Fox , Christopher J. Keizer , Ronald C. Perry , Matthew T. Boerma , Justin D. Warner , Scott V. Slothower , Julie S. Muszynski , David J. Laforme
IPC分类号： F25D23/12
CPC分类号： H05K7/20936 , F28D15/00 , F28F3/12
摘要： A cooling member for a variable speed drive is disclosed. The cooling member includes including at least two channels, each channel including at least one inlet and at least one outlet, a first passageway configured to provide fluid to the at least two channels through the at least one inlet of each channel, a second passageway configured to receive fluid from the at least one outlet of each channel the at least two channels, and a connector to connect the cooling member to a second cooling member.
摘要翻译： 公开了一种用于变速驱动器的冷却构件。 冷却构件包括至少两个通道，每个通道包括至少一个入口和至少一个出口，构造成通过每个通道的至少一个入口向至少两个通道提供流体的第一通道，构造成 以从至少两个通道的每个通道的至少一个出口接收流体，以及将冷却构件连接到第二冷却构件的连接器。
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公开(公告)号：US20130141024A1
公开(公告)日：2013-06-06
申请号：US13579464
申请日：2011-02-24
申请人： Zhiqiao Wu , Ivan Jadric
发明人： Zhiqiao Wu , Ivan Jadric
IPC分类号： H02P6/18
CPC分类号： H02P6/181 , H02P1/52 , H02P6/18 , H02P6/185 , H02P21/141 , H02P23/14 , H02P25/024 , H02P25/03
摘要： A method is disclosed for controlling a synchronous motor by determining a rotor position of the synchronous motor based on estimating a flux linkage. The method includes applying a voltage of a stator winding of the motor to a transfer function. The transfer function includes an S-domain integration operation and an error correction variable. An output of the transfer function is processed to compensate for the error correction variable introduced in the transfer function. An estimated flux linkage is generated and an angle of the rotor position is computed based on the flux linkage. The computed rotor position is input to a controller for controlling a position or speed of the motor.
摘要翻译： 公开了一种通过基于估计磁链来确定同步电动机的转子位置来控制同步电动机的方法。 该方法包括将电机的定子绕组的电压施加到传递函数。 传递函数包括S域积分运算和纠错变量。 处理传递函数的输出以补偿传递函数中引入的纠错变量。 产生估计的磁链，并且基于磁链来计算转子位置的角度。 计算的转子位置被输入到用于控制电动机的位置或速度的控制器。
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公开(公告)号：US20130026958A1
公开(公告)日：2013-01-31
申请号：US13640322
申请日：2010-05-04
IPC分类号： H02P27/00
CPC分类号： H03K17/168 , H02P27/06 , H03K17/107 , H03K17/127 , H03K17/163
摘要： A converter module for a variable speed drive having a semiconductor device for precharge is described. The precharge circuit includes switching modules, one switching module with a first semiconductor switch connected in parallel or series with a second semiconductor switch. The second semiconductor switch is switched on and off during the precharge operation in order to limit the inrush current into the DC Link. After the precharge operation, the second semiconductor switch is turned on all the time and acts like a diode. The second semiconductor device may have a lower maximum current rating than the main semi-conductor devices. The lower current rated semiconductor device experience the same short circuit current as the higher current rated semiconductor device. The lower current rated semiconductor device can be supplied with a larger gate to emitter voltage than the higher current rated semiconductor device to equalize current between semiconductor devices.
摘要翻译： 描述了一种用于具有用于预充电的半导体器件的变速驱动器的转换器模块。 预充电电路包括开关模块，一个开关模块，其具有与第二半导体开关并联或串联连接的第一半导体开关。 在预充电操作期间，第二半导体开关被接通和关断，以限制进入DC Link的浪涌电流。 在预充电操作之后，第二半导体开关始终导通，并且起二极管的作用。 第二半导体器件可以具有比主半导体器件更低的最大电流额定值。 较低电流额定值的半导体器件具有与较高电流额定值的半导体器件相同的短路电流。 较低额定电流的半导体器件可以提供比较高电流额定半导体器件更大的栅极至发射极电压，以均衡半导体器件之间的电流。
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公开(公告)号：US08174853B2
公开(公告)日：2012-05-08
申请号：US13034308
申请日：2011-02-24
IPC分类号： H02M1/12
CPC分类号： H02M5/4585 , H02M1/126 , H02M7/003
摘要： Systems and methods for improved VSDs are provided. One embodiment relates to an apparatus for common mode and differential mode filtering for motor or compressor bearing protection when operating with VSDs, including conducted EMI/RFI input power mains mitigation. Another embodiment relates to a method to extend the synchronous operation of an Active Converter to the AC mains voltage during complete line dropout. Another embodiment relates to an Active Converter-based Variable Speed Drive system with Improved Full Speed Efficiency.
摘要翻译： 提供了改进的VSD的系统和方法。 一个实施例涉及一种用于在使用VSD进行运行时的电动机或压缩机轴承保护的共模和差模过滤装置，包括传导EMI / RFI输入电源减轻。 另一个实施例涉及在完整的线路断开期间将有源转换器的同步操作扩展到AC电源电压的方法。 另一实施例涉及具有改进的全速效率的基于有源转换器的变速驱动系统。
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公开(公告)号：US20110101907A1
公开(公告)日：2011-05-05
申请号：US12999818
申请日：2009-07-08
CPC分类号： H01L23/34 , H01L23/473 , H01L23/50 , H01L25/072 , H01L2224/48227 , H01L2224/85424 , H01L2224/85439 , H01L2224/85444 , H01L2224/85447 , H01L2224/85469 , H01L2924/13034 , H01L2924/1305 , H01L2924/13055 , H01L2924/13091 , H05K1/0215 , H05K1/0306 , H05K1/162 , H05K3/0061 , H05K3/341 , H05K7/1432 , H05K2201/10166
摘要： A grounding system for a semiconductor module of a variable speed drive includes a first conductive layer, a second conductive layer; a substrate disposed between the first conductive layer and the second conductive layer; and a base attached to the second conductive layer, the base being connected to earth ground via a grounding harness. The first conductive layer is in electrical contact with the semiconductor module and the substrate, and electrically insulated from the second conductive layer by the substrate. The second conductive layer is in electrical contact with the substrate and disposed between the substrate and the base in electrical communication with an earth ground. The first conductive layer, the substrate and the second conductive layer form a capacitance path between the semiconductor module and the base as well as electrical conductors and the base for reduction circulating currents within the semiconductor module.
摘要翻译： 用于变速驱动器的半导体模块的接地系统包括第一导电层，第二导电层; 设置在所述第一导电层和所述第二导电层之间的衬底; 以及附接到所述第二导电层的基座，所述基座经由接地线束连接到大地。 第一导电层与半导体模块和衬底电接触，并且通过衬底与第二导电层电绝缘。 第二导电层与衬底电接触并且设置在与地面电连通的衬底和基底之间。 第一导电层，衬底和第二导电层在半导体模块和基底之间形成电容路径，以及电导体和用于还原半导体模块内的循环电流的基极。
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30.发明申请公开(公告)号：US20060250105A1
公开(公告)日：2006-11-09
申请号：US11123756
申请日：2005-05-06
申请人： Ivan Jadric , Harold Schnetzka , Stephen Smith
发明人： Ivan Jadric , Harold Schnetzka , Stephen Smith
IPC分类号： H02P5/28
CPC分类号： F25B49/025 , F25B2600/021 , H02M5/4585 , H02P25/08 , Y02B30/741
摘要： A variable speed drive with a boost converter is provided for a chiller system driven by a switched reluctance motor. The boost converter can be a diode or thyristor rectifier followed by a boost DC/DC converter or a three-phase pulse width modulated boost converter. The boost converter provides a boosted voltage to the DC link, which results in a boosted voltage being applied to the switched reluctance motor by the inverter of the variable speed drive.
摘要翻译： 对于由开关磁阻电机驱动的冷却器系统，提供了带升压转换器的变速驱动器。 升压转换器可以是二极管或晶闸管整流器，后面是升压型DC / DC转换器或三相脉宽调制升压转换器。 升压转换器为直流链路提供升压电压，这导致由变频驱动器的逆变器施加到开关磁阻电动机的升压电压。
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