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公开(公告)号：US09777748B2
公开(公告)日：2017-10-03
申请号：US12753930
申请日：2010-04-05
Applicant: Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
Inventor： Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
CPC classification number: F04D29/669 , F04D15/0077 , F04D15/0088
Abstract: A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.
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公开(公告)号：US08676356B2
公开(公告)日：2014-03-18
申请号：US12351582
申请日：2009-01-09
IPC: G05B13/00
CPC classification number: H02P23/0077
Abstract: A system and method for determining unknown values of certain motor parameters includes a motor input device connectable to an electric motor having associated therewith values for known motor parameters and an unknown value of at least one motor parameter. The motor input device includes a processing unit that receives a first input from the electric motor comprising values for the known motor parameters for the electric motor and receive a second input comprising motor data on a plurality of reference motors, including values for motor parameters corresponding to the known motor parameters of the electric motor and values for motor parameters corresponding to the at least one unknown motor parameter value of the electric motor. The processor determines the unknown value of the at least one motor parameter from the first input and the second input and determines a motor management strategy for the electric motor based thereon.
Abstract translation: 用于确定某些电动机参数的未知值的系统和方法包括可连接到具有与已知电动机参数的值相关联的电动机的电动机输入装置和至少一个电动机参数的未知值。 电动机输入装置包括处理单元，其接收来自电动机的第一输入，包括用于电动机的已知电动机参数的值，并且接收包括多个参考电动机上的电动机数据的第二输入，包括对应于 电动机的已知电动机参数和对应于电动机的至少一个未知电动机参数值的电动机参数值。 处理器从第一输入端和第二输入端确定至少一个电动机参数的未知值，并且基于此确定用于电动机的电动机管理策略。
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公开(公告)号：US08203298B2
公开(公告)日：2012-06-19
申请号：US12547723
申请日：2009-08-26
Applicant: Bin Lu , Ting Yan , Charles John Luebke , Santosh Kumar Sharma
Inventor： Bin Lu , Ting Yan , Charles John Luebke , Santosh Kumar Sharma
IPC: H02P23/14
CPC classification number: H02P27/045 , H02P23/14
Abstract: A system and method for a motor management system includes a computer readable storage medium and a processing unit. The processing unit configured to determine a voltage value of a voltage input to an alternating current (AC) motor, determine a frequency value of at least one of a voltage input and a current input to the AC motor, determine a load value from the AC motor, and access a set of motor nameplate data, where the set of motor nameplate data includes a rated power, a rated speed, a rated frequency, and a rated voltage of the AC motor. The processing unit is also configured to estimate a motor speed based on the voltage value, the frequency value, the load value, and the set of nameplate data and also store the motor speed on the computer readable storage medium.
Abstract translation: 一种用于电机管理系统的系统和方法，包括计算机可读存储介质和处理单元。 所述处理单元被配置为确定输入到交流电动机的电压的电压值，确定对所述AC电动机输入的电压输入和电流中的至少一个的频率值，从所述AC 电机，并访问一组电机铭牌数据，其中电机铭牌数据集包括交流电机的额定功率，额定转速，额定频率和额定电压。 处理单元还被配置为基于电压值，频率值，负载值和铭牌数据集来估计电动机速度，并且还将电动机速度存储在计算机可读存储介质上。
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公开(公告)号：US20110241888A1
公开(公告)日：2011-10-06
申请号：US12753930
申请日：2010-04-05
Applicant: Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
Inventor： Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
CPC classification number: F04D29/669 , F04D15/0077 , F04D15/0088
Abstract: A system and method for detecting cavitation in pumps for fixed and variable supply frequency applications is disclosed. The system includes a controller having a processor programmed to repeatedly receive real-time operating current data from a motor driving a pump, generate a current frequency spectrum from the current data, and analyze current data within a pair of signature frequency bands of the current frequency spectrum. The processor is further programmed to repeatedly determine fault signatures as a function of the current data within the pair of signature frequency bands, repeatedly determine fault indices based on the fault signatures and a dynamic reference signature, compare the fault indices to a reference index, and identify a cavitation condition in a pump based on a comparison between the reference index and a current fault index.
Abstract translation: 公开了一种用于在固定和可变电源频率应用的泵中检测气蚀的系统和方法。 该系统包括具有处理器的控制器，其被编程为重复地接收来自驱动泵的电动机的实时操作电流数据，从当前数据生成当前频谱，并分析当前频率的一对签名频带内的当前数据 光谱。 处理器进一步被编程为重复地将故障签名确定为一对签名频带内的当前数据的函数，基于故障签名和动态参考签名重复地确定故障索引，将故障索引与参考索引进行比较，以及 基于参考指数和当前故障指数之间的比较，识别泵中的气蚀条件。
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公开(公告)号：US08566056B2
公开(公告)日：2013-10-22
申请号：US12816461
申请日：2010-06-16
Applicant: Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
Inventor： Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
CPC classification number: H02P27/047 , G01P3/48 , G01P3/489 , H02P21/18 , H02P23/14
Abstract: A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.
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Patent Agency Ranking
公开(公告)号：US20110313717A1
公开(公告)日：2011-12-22
申请号：US12816461
申请日：2010-06-16
Applicant: Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
Inventor： Bin Lu , Santosh Kumar Sharma , Ting Yan , Steven A. Dimino
IPC: G06F19/00
CPC classification number: H02P27/047 , G01P3/48 , G01P3/489 , H02P21/18 , H02P23/14
Abstract: A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.
Abstract translation: 公开了一种用于确定AC感应电机的转子速度的系统和方法。 该系统被编程为根据线速度估计算法并且基于感应电动机的铭牌信息（NPI）以及在其运行期间的AC感应电机的参数来估计感应电机的转子速度。 转子速度估计系统还被编程为根据频域信号处理算法估计AC感应电机的转子速度，并且确定由此估计的转子速度是否有效。 如果通过频域信号处理算法估计的转子速度有效，则根据线速度估计算法估计交流感应电机的调谐转子速度，部分基于由频域信号处理算法估计的转子速度， 域信号处理算法。
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公开(公告)号：US20110050142A1
公开(公告)日：2011-03-03
申请号：US12547723
申请日：2009-08-26
Applicant: Bin Lu , Ting Yan , Charles John Luebke , Santosh Kumar Sharma
Inventor： Bin Lu , Ting Yan , Charles John Luebke , Santosh Kumar Sharma
CPC classification number: H02P27/045 , H02P23/14
Abstract: A system and method for a motor management system includes a computer readable storage medium and a processing unit. The processing unit configured to determine a voltage value of a voltage input to an alternating current (AC) motor, determine a frequency value of at least one of a voltage input and a current input to the AC motor, determine a load value from the AC motor, and access a set of motor nameplate data, where the set of motor nameplate data includes a rated power, a rated speed, a rated frequency, and a rated voltage of the AC motor. The processing unit is also configured to estimate a motor speed based on the voltage value, the frequency value, the load value, and the set of nameplate data and also store the motor speed on the computer readable storage medium.
Abstract translation: 一种用于电机管理系统的系统和方法，包括计算机可读存储介质和处理单元。 所述处理单元被配置为确定输入到交流电动机的电压的电压值，确定对所述AC电动机输入的电压输入和电流中的至少一个的频率值，从所述AC 电机，并访问一组电机铭牌数据，其中电机铭牌数据集包括交流电机的额定功率，额定转速，额定频率和额定电压。 处理单元还被配置为基于电压值，频率值，负载值和铭牌数据集来估计电动机速度，并且还将电动机速度存储在计算机可读存储介质上。
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公开(公告)号：US08232760B2
公开(公告)日：2012-07-31
申请号：US12541320
申请日：2009-08-14
Applicant: Bin Lu , Ting Yan , Steven John Fredette , Charles John Luebke
Inventor： Bin Lu , Ting Yan , Steven John Fredette , Charles John Luebke
CPC classification number: H02P23/02 , H02P23/0077 , H02P23/14 , H02P27/047
Abstract: A system and method for controlling an AC motor drive includes a control system programmed with an energy algorithm configured to optimize operation of the motor drive. Specifically, the control system input an initial voltage-frequency command to the AC motor drive based on an initial voltage/frequency (V/Hz) curve, receives a real-time output of the AC motor drive generated according to the initial voltage-frequency command, and feedback a plurality of modified voltage-frequency commands to the AC motor drive, each of the plurality of modified voltage-frequency commands comprising a deviation from the initial V/Hz curve. The control system also determines a real-time value of the motor parameter corresponding to each of the plurality of modified voltage-frequency commands, and feeds back a modified voltage-frequency command to the AC motor drive so that the real-time value of the motor parameter is within a motor parameter tolerance range.
Abstract translation: 用于控制AC电动机驱动器的系统和方法包括用能够优化电动机驱动器的操作的能量算法编程的控制系统。 具体地说，控制系统基于初始电压/频率（V / Hz）曲线向AC电动机驱动器输入初始电压 - 频率指令，接收根据初始电压 - 频率产生的交流电动机驱动的实时输出 命令，并且向AC电动机驱动器反馈多个修改的电压 - 频率命令，所述多个修改的电压 - 频率指令中的每一个包括与初始V / Hz曲线的偏差。 控制系统还确定与多个修改的电压 - 频率指令中的每一个相对应的电动机参数的实时值，并将修改的电压 - 频率命令反馈给AC电动机驱动器，使得实时值 电机参数在电机参数公差范围内。
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公开(公告)号：US20100315034A1
公开(公告)日：2010-12-16
申请号：US12541320
申请日：2009-08-14
Applicant: Bin Lu , Ting Yan , Steven John Fredette , Charles John Luebke
Inventor： Bin Lu , Ting Yan , Steven John Fredette , Charles John Luebke
IPC: H02P27/04
CPC classification number: H02P23/02 , H02P23/0077 , H02P23/14 , H02P27/047
Abstract: A system and method for controlling an AC motor drive includes a control system programmed with an energy algorithm configured to optimize operation of the motor drive. Specifically, the control system input an initial voltage-frequency command to the AC motor drive based on an initial voltage/frequency (V/Hz) curve, receives a real-time output of the AC motor drive generated according to the initial voltage-frequency command, and feedback a plurality of modified voltage-frequency commands to the AC motor drive, each of the plurality of modified voltage-frequency commands comprising a deviation from the initial V/Hz curve. The control system also determines a real-time value of the motor parameter corresponding to each of the plurality of modified voltage-frequency commands, and feeds back a modified voltage-frequency command to the AC motor drive so that the real-time value of the motor parameter is within a motor parameter tolerance range.
Abstract translation: 用于控制AC电动机驱动器的系统和方法包括用能够优化电动机驱动器的操作的能量算法编程的控制系统。 具体地说，控制系统基于初始电压/频率（V / Hz）曲线向AC电动机驱动器输入初始电压 - 频率指令，接收根据初始电压 - 频率产生的交流电动机驱动的实时输出 命令，并且向AC电动机驱动器反馈多个修改的电压 - 频率命令，所述多个修改的电压 - 频率指令中的每一个包括与初始V / Hz曲线的偏差。 控制系统还确定与多个修改的电压 - 频率指令中的每一个相对应的电动机参数的实时值，并将修改的电压 - 频率命令反馈给AC电动机驱动器，使得实时值 电机参数在电机参数公差范围内。
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公开(公告)号：US09148083B2
公开(公告)日：2015-09-29
申请号：US13551973
申请日：2012-07-18
Applicant: Eric Jon Olsson , Bin Lu , Ting Yan , Steven John Fredette , Charles John Luebke
Inventor： Eric Jon Olsson , Bin Lu , Ting Yan , Steven John Fredette , Charles John Luebke
CPC classification number: H02P23/02 , H02P23/0077 , H02P23/14 , H02P27/047
Abstract: A system and method for controlling an AC motor drive includes a control system programmed with an algorithm configured to optimize operation of the motor drive. Specifically, the control system is programmed to input an initial voltage-frequency command to the drive. The initial voltage-frequency command includes a voltage reference and a frequency reference corresponding to an operating point of an initial voltage/frequency (V/Hz) curve. The control system monitors a real-time output of the drive, modifies the voltage reference based on the real-time output of the drive, and transmits a modified voltage-frequency command to the drive. The modified voltage-frequency command corresponds to an operating point of a modified V/Hz curve defined by the modified voltage reference and the initial V/Hz curve.
Abstract translation: 用于控制AC电动机驱动器的系统和方法包括用配置成优化电动机驱动器的操作的算法来编程的控制系统。 具体地，控制系统被编程为向驱动器输入初始电压 - 频率命令。 初始电压 - 频率指令包括对应于初始电压/频率（V / Hz）曲线的工作点的电压基准和频率基准。 控制系统监控驱动器的实时输出，根据驱动器的实时输出修改参考电压，并向驱动器发送修改的电压 - 频率指令。 修改的电压 - 频率指令对应于由修改的电压基准和初始V / Hz曲线定义的修改的V / Hz曲线的工作点。
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