Patents by Inventor Zhaoxue CUI
Zhaoxue CUI 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).
-
Patent number: 11962248Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current (DC)/DC conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.Type: GrantFiled: June 12, 2023Date of Patent: April 16, 2024Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Wei Zhang, Zhaoxue Cui, Ningbo Feng
-
Patent number: 11888417Abstract: An energy conversion apparatus, a motor, a power system, and a vehicle are provided. The energy conversion apparatus may integrate a motor drive function by using a three-phase bridge arm converter and a motor winding, and integrate an alternating current charging function by using a two-phase two-bridge-arm converter and a transformer. In this way, the energy conversion apparatus can integrate the charging function and the motor drive function. When the energy conversion apparatus is installed on an electric vehicle, a vehicle integration level can be increased, a structure layout of the electric vehicle can be simplified, and costs and a volume of the electric vehicle can be reduced.Type: GrantFiled: March 31, 2022Date of Patent: January 30, 2024Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Zhaoxue Cui, Wei Zhang, Ningbo Feng
-
Patent number: 11820244Abstract: Embodiments of this application provide an energy conversion apparatus, a power system, and a vehicle. The energy conversion apparatus includes a first switch group, a second switch group, a third switch group, a three-phase converter, a motor coil, a bridge arm circuit, and a three-port converter. The energy conversion apparatus is integrated with functions of alternating-current charging, motor driving, and direct-current charging, and can be installed on an electric vehicle to improve vehicle integration, thereby simplifying a structural layout of the electric vehicle, and reducing costs and a volume of the electric vehicle.Type: GrantFiled: March 31, 2022Date of Patent: November 21, 2023Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Zhaoxue Cui, Wei Zhang, Weiping Liu
-
Publication number: 20230327565Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current (DC)/DC conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.Type: ApplicationFiled: June 12, 2023Publication date: October 12, 2023Applicant: Huawei Digital Power Technologies Co., Ltd.Inventors: Wei ZHANG, Zhaoxue CUI, Ningbo FENG
-
Patent number: 11699957Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current to direct current (DC/DC) conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.Type: GrantFiled: May 27, 2022Date of Patent: July 11, 2023Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Wei Zhang, Zhaoxue Cui, Ningbo Feng
-
Publication number: 20230070930Abstract: A charging circuit of an on-board charger, where a second end of a first power conversion circuit of the charging circuit is coupled to a first end of a second power conversion circuit, a high-voltage output end of the second power conversion circuit charges a power battery pack of an electric vehicle, and a first low-voltage output end of the second power conversion circuit supplies power to a low-voltage system of the electric vehicle. The first power conversion circuit is configured to, when the electric vehicle is in a charging mode, convert an alternating current input from a first end of the first power conversion circuit into a direct current and transmit the direct current to the first end of the second power conversion circuit.Type: ApplicationFiled: November 15, 2022Publication date: March 9, 2023Inventors: Shida Gu, Wei Zhang, Yang Cheng, Zhaoxue Cui
-
Publication number: 20220286057Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current to direct current (DC/DC) conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.Type: ApplicationFiled: May 27, 2022Publication date: September 8, 2022Applicant: Huawei Digital Power Technologies Co., Ltd.Inventors: Wei ZHANG, Zhaoxue CUI, Ningbo FENG
-
Publication number: 20220224271Abstract: This application provides an energy conversion apparatus, a motor, a power system, and a vehicle. The energy conversion apparatus may integrate a motor drive function by using a three-phase bridge arm converter and a motor winding, and integrate an alternating current charging function by using a two-phase two-bridge-arm converter and a transformer. In this way, the energy conversion apparatus can integrate the charging function and the motor drive function. When the energy conversion apparatus is installed on an electric vehicle, a vehicle integration level can be increased, a structure layout of the electric vehicle can be simplified, and costs and a volume of the electric vehicle can be reduced.Type: ApplicationFiled: March 31, 2022Publication date: July 14, 2022Inventors: Zhaoxue CUI, Wei ZHANG, Ningbo FENG
-
Publication number: 20220224225Abstract: This application provides a converter and an on-board charger, to avoid a short-circuit fault of the converter while inhibiting a surge impact. The converter includes: a power factor correction PFC circuit, a surge protection circuit, and a switch circuit. The PFC circuit is configured to: convert a first component of a first alternating current received by an alternating current terminal of the PFC circuit into a first direct current, and output the first direct current through a direct current terminal of the PFC circuit; and convert a second direct current received by the direct current terminal of the PFC circuit into a second alternating current, and output the second alternating current through the alternating current terminal of the PFC circuit.Type: ApplicationFiled: March 31, 2022Publication date: July 14, 2022Inventors: Chen CHEN, Bin MA, Weiping LIU, Zhaoxue CUI
-
Publication number: 20220219554Abstract: Embodiments of this application provide an energy conversion apparatus, a power system, and a vehicle. The energy conversion apparatus includes a first switch group, a second switch group, a third switch group, a three-phase converter, a motor coil, a bridge arm circuit, and a three-port converter. The energy conversion apparatus is integrated with functions of alternating-current charging, motor driving, and direct-current charging, and can be installed on an electric vehicle to improve vehicle integration, thereby simplifying a structural layout of the electric vehicle, and reducing costs and a volume of the electric vehicle.Type: ApplicationFiled: March 31, 2022Publication date: July 14, 2022Inventors: Zhaoxue CUI, Wei ZHANG, Weiping LIU
-
Patent number: 10333427Abstract: This disclosure relates to an equivalent transistor and a three-level inverter, and pertains to the field of power electronics technologies. The equivalent transistor includes a first transistor, a second transistor, and a diode. A source electrode of the first transistor is electrically connected to a source electrode of the second transistor; a gate electrode of the first transistor is electrically connected to a gate electrode of the second transistor; and one end of the diode is electrically connected to a drain electrode of the first transistor, and the other end of the diode is electrically connected to a drain electrode of the second transistor. According to this disclosure, a reverse recovery time can be reduced, and a switching speed of the equivalent transistor can increase.Type: GrantFiled: June 22, 2018Date of Patent: June 25, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zhaoxue Cui, Chuntao Zhang
-
Publication number: 20180302005Abstract: This disclosure relates to an equivalent transistor and a three-level inverter, and pertains to the field of power electronics technologies. The equivalent transistor includes a first transistor, a second transistor, and a diode. A source electrode of the first transistor is electrically connected to a source electrode of the second transistor; a gate electrode of the first transistor is electrically connected to a gate electrode of the second transistor; and one end of the diode is electrically connected to a drain electrode of the first transistor, and the other end of the diode is electrically connected to a drain electrode of the second transistor. According to this disclosure, a reverse recovery time can be reduced, and a switching speed of the equivalent transistor can increase.Type: ApplicationFiled: June 22, 2018Publication date: October 18, 2018Inventors: Zhaoxue CUI, Chuntao ZHANG
-
Patent number: 9520718Abstract: An uninterruptible power supply circuit is provided. The uninterruptible power supply circuit includes a bidirectional selector switch, a first-type bidirectional converter, a second-type bidirectional converter, an energy storage apparatus, and a filtering apparatus, and is alternatively connected to an alternating-current power supply and the energy storage apparatus by using the bidirectional selector switch; the first-type bidirectional converter is disposed between the bidirectional selector switch and the filtering apparatus, the second-type bidirectional converter is disposed between the filtering apparatus and a load, and both the first-type bidirectional converter and the second-type bidirectional converter have a function of rectifying or inverting.Type: GrantFiled: November 5, 2014Date of Patent: December 13, 2016Assignee: Huawei Technologies Co., Ltd.Inventor: Zhaoxue Cui
-
Publication number: 20150054343Abstract: An uninterruptible power supply circuit is provided. The uninterruptible power supply circuit includes a bidirectional selector switch, a first-type bidirectional converter, a second-type bidirectional converter, an energy storage apparatus, and a filtering apparatus, and is alternatively connected to an alternating-current power supply and the energy storage apparatus by using the bidirectional selector switch; the first-type bidirectional converter is disposed between the bidirectional selector switch and the filtering apparatus, the second-type bidirectional converter is disposed between the filtering apparatus and a load, and both the first-type bidirectional converter and the second-type bidirectional converter have a function of rectifying or inverting.Type: ApplicationFiled: November 5, 2014Publication date: February 26, 2015Inventor: Zhaoxue Cui
-
Publication number: 20140119088Abstract: The present application provides a three-level inverter and power supply equipment, including: a first IGBT, where a collector thereof is connected to a positive direct current bus, an emitter thereof is connected to a first connection point, and the collector and the emitter are bridge-connected to a first freewheeling diode; a second IGBT, where a collector thereof is connected to the first connection point, an emitter thereof is connected to a second connection point, and the collector and the emitter are bridge-connected to a second freewheeling diode; a third IGBT, where a collector thereof is connected to the second connection point, an emitter thereof is connected to a third connection point, and the collector and the emitter are bridge-connected to a third freewheeling diode; a fourth IGBT, where a collector thereof is connected to the third connection point, an emitter thereof is connected to a negative direct current bus.Type: ApplicationFiled: December 26, 2013Publication date: May 1, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Gouyi CHEN, Zhaoxue CUI, Tao ZHANG