Crrc Qingdao Sifang Co., Ltd.

Tonji University

Donghua Wu

Fujie Jiang

Jianying Liang

Jinghai Jiao

Guimei Deng

Zhiqiang Zhang

Xiankai Liu

Buzhao Niu

Shi Xiao

Yanmin Li

Xinmai Gao

Weitao Han

Lijun Ma

Huiqing Zhang

Bo Chen

Jian Chen

Guidong Tao

Qing Tian

Qingjun Han

Xin Miao

Shouliang Jiang

Xing Chen

Jin Luan

Shanqiang Fu

Fangdong Hou

Jiyu Han

Yunfei Wang

Yanxiao Lei

Kaiyi Tang

Changfeng Yang

Jinsong Kang

Jiankang Xue

Siyuan Mu

Zhixun Ma

Houxiao Jiang

Xinkai Fang

Yanzun Yu

Jiansheng Zhou

An integrated electromagnet comprises a magnetic yoke and magnetic poles in two rows. An axis of magnetic core in the magnetic pole is perpendicular to the magnetic yoke. The magnetic poles comprise first and second magnetic poles that are arranged alternatively in a row. The first magnetic pole in any row is adjacent to the second magnetic pole in the other row. The first magnetic poles in a row are connected to a one-way output controller and the second magnetic poles in a row are connected to a bidirectional output controller. In a guiding state, the magnetic poles in a row have a same polarity, and a polarity of the magnetic poles in one row is opposite to that in the other row; current output by the bidirectional output controller in a braking state has direction opposite to current output by the bidirectional output controller in the guiding state.

Integrated electromagnet and maglev train

A linear motor comprises a primary part and a secondary part opposite to each other. An air gap is reserved between the primary and secondary parts. The air gap has first spacing in non-operating state and second spacing in operating state. The side surface of the primary part facing the secondary part is provided with a magnetically conductive film that has elasticity in the thickness direction and a thickness greater than the first spacing and less than the second spacing. The magnetically conductive film comprises magnetically conductive base bodies and non-magnetically conductive base bodies alternately distributed along the surface of the magnetically conductive film, and the magnetically conductive base bodies are filled with magnetically conductive materials. The magnetically conductive base bodies cover magnetic poles on the side surface of the primary part facing the secondary part, and the non-magnetically conductive base bodies shield gaps between the adjacent magnetic poles.

Linear motor for maglev train, and maglev train

A positioning system and method for a maglev train, the positioning system comprising an onboard magnet mounted at the bottom of a train, two grating arrays laid on train tracks side by side in the traveling direction of the train, an optical pulse generation module and a data processing module. The data processing module performs first-stage train positioning according to drift conditions of the center wavelengths of the marking gratings, performs second-stage train positioning according to drift conditions of the center wavelengths of the first grating array, and performs third-stage train positioning according to drift conditions of the central wavelengths of the second grating array, so as to determine the track positions where the train arrives step by step.

Positioning system and method for maglev train

A detection system for a suspension system of a maglev train, comprising a detection component and a controller. The detection component comprises: a driving unit, a first test coil unit and a second test coil unit. A first test coil group of the first test coil unit corresponds to a gap coil of a to-be-detected suspension sensor, and a second test coil group of the second test coil unit corresponds to a speed coil of the to-be-detected suspension sensor. The controller is communicatively connected with the driving unit and a suspension controller, the driving unit is configured to send a driving signal to at least one of the first test coil unit and the second test coil unit in response to a control command from the controller, and the controller is configured to acquire parameter information fed back by the suspension controller.

Detection system for suspension system of maglev train

A voltage control method. A train traveling speed can be acquired; a target transformation ratio corresponding to the train traveling speed is determined according to correspondences between train traveling speeds and transformation ratios, the transformation ratio being a ratio of an input voltage to an output voltage; an input voltage is then transformed according to the target transformation ratio to obtain an output voltage, the output voltage being used for driving a train to travel. The correspondences between train traveling speeds and transformation ratios are obtained according to correspondences between train traveling speeds and train traction forces at different transformation ratios. By means of the method, the most suitable transformation ratio can be provided according to a traveling speed of a maglev train, thereby increasing the traction force of the maglev train and improving running efficiency.

Voltage control method and apparatus, system, and maglev train

A power supply battery and a power supply system for high-speed maglev trains are disclosed. The power supply battery comprises: an electrolyte tank, a plurality of liquid flow pumps, and a plurality of aluminum-air battery reactors. The plurality of aluminum-air battery reactors are sequentially connected in series. The electrolyte tank comprises a plurality of elongate electrolyte grooves. One liquid flow pump corresponds to one aluminum-air battery reactor and one electrolyte groove.

Power supply battery and power supply system for high-speed maglev trains

A decoupling control system for a salient pole synchronous motor that includes a harmonic current detection module, configured to acquire 6k&#xb1;1 harmonic current feedback; a linear transformation module, configured to perform linear transformation on 6k&#xb1;1 harmonic current references and 6k&#xb1;1 harmonic current feedback in a harmonic reference frame separately to acquire new harmonic currents; and a harmonic current decoupling control module, configured to make adjustment according to an error between a harmonic current reference subjected to the linear transformation and harmonic current feedback subjected to the linear transformation, and perform independent decoupling control over each of the harmonic currents.

Decoupling control system and method for harmonic current of salient pole synchronous motor

A method, system and device for controlling a door of a railway vehicle are provided. The method comprises: a door control instruction sent by a transponder is received when a railway vehicle draws into the station, wherein the door control instruction is used for determining a door of the railway vehicle at a platform side; and the railway vehicle is controlled to open the door of the railway vehicle at the platform side according to the door control instruction, thereby solving the technical problem that the door of a railway vehicle at the non-platform side may be opened by mistake by a driver due to human factors because the door of the railway vehicle at the platform side is manually opened when the railway vehicle stops.

Method, system and device for controlling door of railway vehicle

Disclosed are an electromagnetic transverse active damping system, and a control method and apparatus therefor. The electromagnetic transverse active damping system comprises an electromagnet controller, wherein the electromagnet controller can determine a value of a damper target gap for an electromagnet active damper according to acquired train transverse acceleration, train position information and train speed, and control the action of the electromagnet active damper according to the determined value of the damper target gap; and electrical control is employed during the control of the electromagnet active damper by the electromagnet controller.

Electromagnetic transverse active damping system, and control method and apparatus therefor

An auxiliary power supply device for a multiple-unit train is provided. A normally-open main contact of a three-phase isolation contactor is connected in series between a three-phase four-wire bus of a first unit and a three-phase four-wire bus of a second unit, and a coil of the three-phase isolation contactor is connected in series in a power supply circuit of the first unit and a power supply circuit of the second unit; a control circuit of the first unit controls the power supply circuit of the first unit to be energized when the three-phase four-wire bus of the first unit supplies power, to close the normally-open main contact; and the control circuit of the second unit controls the power supply circuit of the second unit to be energized when the three-phase four-wire bus of the second unit supplies power to close the normally-open main contact.

Motor train unit auxiliary power supply apparatus

An interlocking control device for a multiple-unit safety circuit is provided, which includes: a protective grounding switch control branch which includes: a pantograph rising pneumatic circuit cut-off valve, a protective grounding switch turn-off pneumatic circuit cut-off valve and a protective grounding switch turn-off solenoid valve which are connected in series. When high-voltage equipment of a multiple-unit train is under maintenance or is powered by an external power supply, a protective grounding switch is turned on, cocks of the pantograph rising pneumatic circuit cut-off valve and the protective grounding switch turn-off pneumatic circuit cut-off valve are rotated to open a cover of a key box, the protective grounding switch control branch is disconnected, the protective grounding switch turn-off solenoid valve connected in series in the protective grounding switch control branch is powered off to maintain the protective grounding switch in an on state.

Interlocking control device of multiple-unit train safety circuit

Growing community of inventors

Shandong, China

Donghua Wu