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公开(公告)号：US20190253143A1
公开(公告)日：2019-08-15
申请号：US16329226
申请日：2017-05-11
发明人： Jianghua FENG , Jiabo XIAO , Qinghua QUAN , Tairan ZHANG , Guotao JIANG , Qi LU
IPC分类号： H04B10/112
摘要： An FSO communication system includes a laser, an optical detector and a first optical adjustment module and a controller. The laser is configured to emit an optical signal. The optical detector is configured to receive an optical signal from the first optical adjustment module. The controller is configured to obtain an optical power of an optical signal received by the optical detector; and generate a control command based on the optical power and transmit the control command. The first optical adjustment module is configured to: receive the control command and the optical signal emitted by the laser; adjust, in response to the control command, the optical signal emitted by the laser to cause the optical power of the optical signal received by the optical detector to be in a preset reasonable range; and transmit the adjusted optical signal to the optical detector.
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2.发明公开公开(公告)号：US20230147692A1
公开(公告)日：2023-05-11
申请号：US17912884
申请日：2020-04-16
发明人： Gaohua CHEN , Jianghua FENG , Rongjun DING , Yijing XU , Yu SHI , Liang HAN , Yanhui WEN , Yonghui NAN , Anfeng ZHAO , Haojiong LV , Kai FANG , Huadong LIU , Hui SHEN , Shu CHENG , Jungui SU , Zhenbang ZHOU , Cheng LI
CPC分类号： B60L13/03 , B60L53/18 , B60L53/20 , B60L13/04 , B61B13/08 , B61L15/0018 , H02J50/10 , B60L2240/12
摘要： A method and system device for performing multi-carrying of a linear motor for magnetic levitation transportation is provided. With the method for performing multi-carrying of a linear motor for magnetic levitation transportation, linear motor traction power information and other linear motor carried information are generated, and the other linear motor carried information is transmitted through a channel for carrying the linear motor traction power information that is constructed based on a linear motor structure.
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3.发明申请METHOD AND DEVICE FOR ACQUIRING ROTOR POSITION BASED ON PERMANENT MAGNET SYNCHRONOUS DRIVE SYSTEM 有权基于永磁同步驱动系统获取转子位置的方法和装置公开(公告)号：US20160365816A1
公开(公告)日：2016-12-15
申请号：US15100802
申请日：2015-03-03
发明人： Jianghua FENG , Kean LIU , Jing SHANG , Junfeng XU , Lei XIAO , Chaoyang ZHANG , Yuliang WEN , Yaping HE , Xiong LIU
摘要： A method and device for acquiring a rotor position based on a permanent magnet synchronous drive system. The permanent magnet synchronous drive system includes an inverter and a permanent magnet synchronous motor, wherein the initial speed of the permanent magnet synchronous motor is not zero. The method includes: controlling a bridge arm switch of an inverter periodically; collecting a three-phase current of the permanent magnet synchronous motor at a fixed time within each control period; and after the three-phase current is reversed, sending same to a phase-locked loop system to conduct processing, so as to obtain a phase angle of an induction potential vector, and according to the phase angle of the induction potential vector, acquiring a rotor position angle of the permanent magnet synchronous motor.
摘要翻译： 一种用于基于永磁同步驱动系统获取转子位置的方法和装置。 永磁同步驱动系统包括逆变器和永磁同步电动机，其中永磁同步电动机的初速度不为零。 该方法包括：周期性地控制逆变器的桥臂开关; 在每个控制周期内固定时间收集永磁同步电动机的三相电流; 在三相电流反转之后，将其发送到锁相环系统进行处理，以获得感应电位矢量的相位角，并且根据感应电位矢量的相位角，获取 永磁同步电机的转子位置角度。
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公开(公告)号：US20210129880A1
公开(公告)日：2021-05-06
申请号：US16488162
申请日：2017-03-16
发明人： Gaohua CHEN , Jianghua FENG , Shu CHENG , Rongjun DING , Chaoqun XIANG , Yijing XU , Liang HAN
摘要： A method, a device and a system for safely and reliably performing real-time speed measurement and continuous positioning are provided. With the method, inertial navigation data from an inertial navigation signal source arranged in a train is detected, and correction data from a correction signal source is detected. In a case that no correction data is detected, a current speed and a current position of the train is determined based on the inertial navigation data, and in a case that the correction data is detected, the inertial navigation data is corrected with the correction data, and a current speed and position of the train are determined based on the corrected inertial navigation data. Therefore, even in the case that no correction data is detected, the real-time speed measurement and continuous positioning can be performed safely and reliably based on the inertial navigation data.
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公开(公告)号：US20200207215A1
公开(公告)日：2020-07-02
申请号：US16634150
申请日：2017-10-10
发明人： Gaohua CHEN , Jianghua FENG , Benyu XIN , Rongjun DING , Kuisen TIAN , Shuying GUO
摘要： A long stator power supply section and a long stator linear motor for a maglev train, comprising a plurality of stator core modules (1) and stator coils (2) equal in number to the stator core modules (1). Each stator of the plurality of stator coils (2) is correspondingly embedded into one stator core module of the stator core modules (1) respectively; joints are arranged at both ends of each stator coil (2); the stator coils (2) on every two adjacent stator core modules (1) are detachably connected by means of the joints; and the joints of the stator coils (2) on the stator core modules (1) at both ends are connected to a feeder cable.
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公开(公告)号：US20240304370A1
公开(公告)日：2024-09-12
申请号：US18275915
申请日：2021-09-29
发明人： Gaohua CHEN , Rongjun DING , Jianghua FENG , Kean LIU , Jing SHANG , Haitao LIU , Yijing XU , Yu SHI , Yu WANG , Wenlong ZHANG , Zhuxia FAN , Liang HAN
CPC分类号： H01F27/24 , H01F7/066 , H01F27/306 , H01Q7/06 , H02K1/06
摘要： An iron core magnetic circuit multiplexing method. An iron core magnetic circuit is multiplexed into a common channel for any periodic function power electromagnetic field and signal electromagnetic wave and a combination thereof, so as to construct an iron core superspace; and the iron core superspace can accommodate any one or more power electromagnetic fields and signal electromagnetic waves, so that an iron core becomes a carrier of a multifunctional channel to achieve the purpose of implementing multifunctional expansion and integrated application. The iron core magnetic circuit multiplexing method comprises: using an iron core as a magnetic circuit multiplexing channel of any periodic function power electromagnetic field and signal electromagnetic wave and a combination thereof; and constructing the magnetic circuit multiplexing channel into an iron core superspace, wherein the iron core superspace can accommodate any one or more power electromagnetic fields and signal electromagnetic waves.
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公开(公告)号：US20170338765A1
公开(公告)日：2017-11-23
申请号：US15507459
申请日：2015-09-02
发明人： Jianghua FENG , Jing SHANG , Junfeng XU , Yuliang WEN , Xiong LIU , Chaoyang ZHANG , Lei XIAO , Yaping HE , Yonghui NAN , Hanfeng ZHENG
CPC分类号： H02P29/662 , G01K7/427 , G01K13/08 , G01R31/343 , H02K21/00 , H02K2211/00 , H02P6/08 , H02P29/66 , H02P29/67 , H02P2207/05
摘要： A rotor temperature monitoring method and system for a permanent magnet synchronous motor are provided. According to the method and system, an a-phase line current and a b-phase line current of a stator of a permanent magnet synchronous motor are obtained as a first line current and a second line current; further, a line voltage between the a-phase and the b-phase of the stator is obtained and a rotating speed of the rotor of the permanent magnet synchronous motor is obtained; and then, the first line current, the second line current, the line voltage, the rotating speed of the rotor, an inductance parameter of the permanent magnet synchronous motor and a temperature characteristic equation of a permanent magnet of the rotor are substituted into a preset rotor permanent magnet temperature expression to calculate and obtain the temperature of the rotor.
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