Patents by Inventor Anbo Yu
Anbo Yu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11947163Abstract: In one aspect, the disclosure relates to multi-material fibers capable of distributedly measuring temperature and pressure in which the methods comprise a thermal drawing step, and the methods of fabricating the disclosed fibers. The fibers can be utilized in methods of temperature and pressure mapping or sensing comprising electrical reflectometry for interrogation. Further disclosed are devices comprising a disclosed fiber with the multi-point detection capability with simple one-end connection. Also disclosed are articles, e.g., smart clothing, wound dressing, robotic skin and other industrial products, comprising a disclosed fiber or a fabric comprising a disclosed fiber. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.Type: GrantFiled: June 4, 2020Date of Patent: April 2, 2024Assignee: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.Inventors: Xiaoting Jia, Anbo Wang, Haifeng Xuan, Li Yu
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Publication number: 20230108943Abstract: A power conversion apparatus. An additional heat capacity apparatus thereof is connected to a heating body by means of a low-heat-resistance channel, and the heat capacity of the heating body is increased, so that a temperature rise rate of the heating body can be reduced when the temperature of the heating body rapidly rises due to large transient loss, thereby lowering the temperature of the heating body at the end of the short-time peak working condition, and ensuring the reliability of a device. Moreover, a high-performance switch tube or more switch tubes connected in parallel are not required to be used as in the prior art, so that the size and the weight of the system are reduced, and the costs are saved.Type: ApplicationFiled: May 17, 2021Publication date: April 6, 2023Applicant: Sungrow Power Supply Co., Ltd.Inventors: Jiacai Zhuang, Xuan LI, Anbo Yu, Keke Shao, Long Qin, Liyan Luo, Jubiao Yao, Yang Wang, Chao Chen, Yafei Sun
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Patent number: 11146204Abstract: A circuit for actively performing short-circuit and a motor controller are provided. The circuit includes an undervoltage detecting circuit, an emergency power supply, a reverse-flow preventing circuit, and a gate level selecting switch. The undervoltage detecting circuit is configured to detect a driving power supply signal outputted from the driving power supply and output, in a case that an amplitude of the driving power supply signal is lower than a first threshold, an emergency active short-circuit enable signal. In response to the emergency active short-circuit enable signal, the emergency power supply is enabled and the gate level selecting switch is controlled to switch from a first conduction path to a second conduction path, to transmit an emergency power supply signal outputted from the emergency power supply to a bridge arm via the second conduction path.Type: GrantFiled: July 16, 2019Date of Patent: October 12, 2021Assignee: SUNGROW POWER SUPPLY CO., LTD.Inventors: Wenjie Chen, Anbo Yu
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Patent number: 10644626Abstract: A method and a system for acquiring a rotor position of a rotary transformer are provided. The system includes: a rotary transformer decoder, a low pass filter and a microprocessor, which includes a synchronous demodulation module and a calculation module. The rotary transformer decoder outputs an excitation signal and acquires first position information of the motor rotor. The calculation module performs calculation to acquire second position information of the motor rotor. The rotary transformer decoder and software decoding are integrated to acquire two rotor positions, and the two rotor positions are compared. In a case that a preset determining condition is met, one of the rotor positions is used for motor control, and the other is used as redundant data for backup, thereby improving the reliability of the acquired rotor position.Type: GrantFiled: February 22, 2019Date of Patent: May 5, 2020Assignee: SUNGROW POWER SUPPLY CO., LTD.Inventors: Anbo Yu, Chengwei Zhang, Enli Du
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Publication number: 20200076347Abstract: A circuit for actively performing short-circuit and a motor controller are provided. The circuit includes an undervoltage detecting circuit, an emergency power supply, a reverse-flow preventing circuit, and a gate level selecting switch. The undervoltage detecting circuit is configured to detect a driving power supply signal outputted from the driving power supply and output, in a case that an amplitude of the driving power supply signal is lower than a first threshold, an emergency active short-circuit enable signal. In response to the emergency active short-circuit enable signal, the emergency power supply is enabled and the gate level selecting switch is controlled to switch from a first conduction path to a second conduction path, to transmit an emergency power supply signal outputted from the emergency power supply to a bridge arm via the second conduction path.Type: ApplicationFiled: July 16, 2019Publication date: March 5, 2020Applicant: SUNGROW POWER SUPPLY CO., LTD.Inventors: Wenjie CHEN, Anbo YU
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Patent number: 10581369Abstract: A motor controller according to the present disclosure obtains the rotational speed determination signal of the motor through the microprocessor and the rotational speed collector, and then outputs the first control signal by the first logic operation circuit based on the speed of the motor, to make the driving circuit control the main circuit to work normally or enter the safety state. In addition, the motor controller generates and outputs the second shutoff signal by the monitoring chip based on the working state or the output instruction of the microprocessor, and then outputs the second control signal by the second logic operation circuit based on the second shutoff signal and whether the DC bus voltage of the main circuit is in an overvoltage state, to make the driving circuit control the main circuit to stop receiving the first control signal and enter the safety state.Type: GrantFiled: January 3, 2019Date of Patent: March 3, 2020Assignee: SUNGROW POWER SUPPLY CO., LTD.Inventors: Wenjie Chen, Enli Du, Anbo Yu, Han Yang
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Publication number: 20190372491Abstract: A method and a system for acquiring a rotor position of a rotary transformer are provided. The system includes: a rotary transformer decoder, a low pass filter and a microprocessor, which includes a synchronous demodulation module and a calculation module. The rotary transformer decoder outputs an excitation signal and acquires first position information of the motor rotor. The calculation module performs calculation to acquire second position information of the motor rotor. The rotary transformer decoder and software decoding are integrated to acquire two rotor positions, and the two rotor positions are compared. In a case that a preset determining condition is met, one of the rotor positions is used for motor control, and the other is used as redundant data for backup, thereby improving the reliability of the acquired rotor position.Type: ApplicationFiled: February 22, 2019Publication date: December 5, 2019Applicant: SUNGROW POWER SUPPLY CO., LTD.Inventors: Anbo YU, Chengwei ZHANG, Enli DU
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Publication number: 20190372505Abstract: A motor controller according to the present disclosure obtains the rotational speed determination signal of the motor through the microprocessor and the rotational speed collector, and then outputs the first control signal by the first logic operation circuit based on the speed of the motor, to make the driving circuit control the main circuit to work normally or enter the safety state. In addition, the motor controller generates and outputs the second shutoff signal by the monitoring chip based on the working state or the output instruction of the microprocessor, and then outputs the second control signal by the second logic operation circuit based on the second shutoff signal and whether the DC bus voltage of the main circuit is in an overvoltage state, to make the driving circuit control the main circuit to stop receiving the first control signal and enter the safety state.Type: ApplicationFiled: January 3, 2019Publication date: December 5, 2019Applicant: SUNGROW POWER SUPPLY CO., LTD.Inventors: Wenjie CHEN, Enli DU, Anbo YU, Han YANG
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Patent number: 10135378Abstract: The present invention provides a V/F control method for an induction motor comprising: extracting a reactive current and an active current and performing a differential calculation on them respectively to obtain a differential of the reactive current and a differential of the active current; multiplying the differential of the reactive current and the differential of the active current by a first coefficient and a second coefficient respectively; obtaining the sum of the result of multiplying the differential of the reactive current by the first coefficient and the result of multiplying the differential of the active current by the second coefficient; applying low-pass filtering on the sum to obtain a compensation; and superposing the compensation onto an original given angular frequency to perform V/F control.Type: GrantFiled: May 30, 2014Date of Patent: November 20, 2018Assignee: Eaton Intelligent Power LimitedInventors: Kevin Lee, Dawei Li, Anbo Yu
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Patent number: 9515598Abstract: A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system is coupled to an output of the inverter. The ASD further includes a control system programmed to calculate an energy of the capacitor, generate a reference power using the calculated capacitor energy, and calculate a feedback power from realtime current signals received from the current sensor system. The control system compares the feedback power to the reference power, defines a frequency offset based on the comparison, generates a speed command using the frequency offset, and outputs the speed command to the inverter to maintain a smooth DC link voltage during deceleration.Type: GrantFiled: March 30, 2015Date of Patent: December 6, 2016Assignee: Eaton CorporationInventors: Yaojin Mo, Huaqiang Li, Anbo Yu, Dawei Li, Jingfeng Xie
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Publication number: 20160226420Abstract: The present invention provides a V/F control method for an induction motor comprising: extracting a reactive current and an active current and performing a differential calculation on them respectively to obtain a differential of the reactive current and a differential of the active current; multiplying the differential of the reactive current and the differential of the active current by a first coefficient and a second coefficient respectively; obtaining the sum of the result of multiplying the differential of the reactive current by the first coefficient and the result of multiplying the differential of the active current by the second coefficient; applying low-pass filtering on the sum to obtain a compensation; and superposing the compensation onto an original given angular frequency to perform V/F control.Type: ApplicationFiled: May 30, 2014Publication date: August 4, 2016Inventors: Kevin Lee, Dawei Li, Anbo Yu
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Publication number: 20150263661Abstract: A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system is coupled to an output of the inverter. The ASD further includes a control system programmed to calculate an energy of the capacitor, generate a reference power using the calculated capacitor energy, and calculate a feedback power from realtime current signals received from the current sensor system. The control system compares the feedback power to the reference power, defines a frequency offset based on the comparison, generates a speed command using the frequency offset, and outputs the speed command to the inverter to maintain a smooth DC link voltage during deceleration.Type: ApplicationFiled: March 30, 2015Publication date: September 17, 2015Inventors: Yaojin Mo, Huaqiang Li, Anbo Yu, Dawei Li, Jingfeng Xie
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Patent number: 8994320Abstract: A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system is coupled to an output of the inverter. The ASD further includes a control system programmed to calculate an energy of the capacitor, generate a reference power using the calculated capacitor energy, and calculate a feedback power from realtime current signals received from the current sensor system. The control system compares the feedback power to the reference power, defines a frequency offset based on the comparison, generates a speed command using the frequency offset, and outputs the speed command to the inverter to maintain a smooth DC link voltage during deceleration.Type: GrantFiled: June 28, 2013Date of Patent: March 31, 2015Assignee: Eaton CorporationInventors: Yaojin Mo, Huaqiang Li, Anbo Yu, Dawei Li, Jingfeng Xie
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Publication number: 20150002072Abstract: A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system is coupled to an output of the inverter. The ASD further includes a control system programmed to calculate an energy of the capacitor, generate a reference power using the calculated capacitor energy, and calculate a feedback power from realtime current signals received from the current sensor system. The control system compares the feedback power to the reference power, defines a frequency offset based on the comparison, generates a speed command using the frequency offset, and outputs the speed command to the inverter to maintain a smooth DC link voltage during deceleration.Type: ApplicationFiled: June 28, 2013Publication date: January 1, 2015Inventors: Yaojin Mo, Huaqiang Li, Anbo Yu, Dawei Li, Jingfeng Xie
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Patent number: 8421397Abstract: A system for controlling operation of a motor drive during fast start-up of an induction motor is disclosed. The system includes an AC motor drive having a PWM inverter and a control system to generate a command signal to cause the PWM inverter to control an output of the AC motor drive. The control system includes a start-up modulator that is selectively operable during start-up acceleration of the AC motor, the start-up modulator programmed to determine a motor current applied to the AC motor and a voltage of a DC bus, generate a first frequency offset that causes a frequency reference of the command signal to be decreased when the motor current is greater than a reference current threshold, and generate a second frequency offset that causes the frequency reference of the command signal to be increased when the DC bus voltage is greater than a reference voltage threshold.Type: GrantFiled: April 11, 2011Date of Patent: April 16, 2013Assignee: Eaton CorporationInventors: Anbo Yu, Lei Zhang, Kevin Lee
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Publication number: 20120256580Abstract: A system for controlling operation of a motor drive during fast start-up of an induction motor is disclosed. The system includes an AC motor drive having a PWM inverter and a control system to generate a command signal to cause the PWM inverter to control an output of the AC motor drive. The control system includes a start-up modulator that is selectively operable during start-up acceleration of the AC motor, the start-up modulator programmed to determine a motor current applied to the AC motor and a voltage of a DC bus, generate a first frequency offset that causes a frequency reference of the command signal to be decreased when the motor current is greater than a reference current threshold, and generate a second frequency offset that causes the frequency reference of the command signal to be increased when the DC bus voltage is greater than a reference voltage threshold.Type: ApplicationFiled: April 11, 2011Publication date: October 11, 2012Inventors: Anbo Yu, Lei Zhang, Kevin Lee