-
1.发明公开
公开(公告)号：EP4300748A1
公开(公告)日：2024-01-03
申请号：EP21928817.2
申请日：2021-10-22
发明人： LIAO, Hongtao , WANG, Wei , ZOU, Huanqing , LUO, Xiaojuan , LEI, Xin , JIA, Yanxin
IPC分类号： H02J3/01
摘要： A traction network high harmonic suppression method and system, and a rail transit vehicle. The method comprises: collecting a network voltage of a contact network in real time, and calculating the harmonic content and the characteristic frequency of the network voltage; if the harmonic content is not less than a preset threshold value, determining that the network voltage is abnormal, and controlling a four-quadrant converter to stop running; and determining whether the characteristic frequency of the current network voltage is within a preset range of the characteristic frequency of a certain four-quadrant control mode, and if not, controlling the four-quadrant converter to run in the four-quadrant control mode.
-
2.发明公开
公开(公告)号：EP4212383A1
公开(公告)日：2023-07-19
申请号：EP20953111.0
申请日：2020-11-27
发明人： LIAO, Hongtao , WANG, Wei , WAN, Shangcun , TAN, Benxu , WU, Zhenshu , PI, Kaijun
摘要： A rail transit vehicle and a power storage battery discharge balancing circuit thereof, and a control method. A power supply configuration relationship between two groups of traction storage batteries and a VVVF auxiliary load and a CVCF auxiliary load of two groups of auxiliary converters is adjusted by controlling actions of four switching modules. When a locomotive operates normally, the total discharge capacity of each traction storage battery pack to the VVVF auxiliary load and the CVCF auxiliary load by default within two discharge cycle periods is the depth of one discharge cycle; when the locomotive is in deep endurance, the traction storage battery having high power consumption automatically selects to supply power to the auxiliary converter having a lower auxiliary load, thereby improving the endurance of the locomotive, and prolonging the service life of the traction storage batteries.
-
公开(公告)号：EP4159575A1
公开(公告)日：2023-04-05
申请号：EP20938089.8
申请日：2020-11-18
发明人： LIAO, Hongtao , WANG, Wei , QIN, Qingmin , CHEN, Zhe , FU, Qiang
摘要： A hybrid power locomotive and an energy balance control method and system thereof. A rotating speed of a power pack is calculated according to a power needing to be developed by the power pack, and the power pack is made to operate at the rotating speed, so that the power of the power pack is fully developed, and the efficiency under the power is improved. When the actual output voltage of the power pack is higher than a target voltage value, redundant energy is stored in an energy storage element, energy waste is avoided while the power of the power pack is guaranteed to be fully developed; and when the actual output voltage of the power pack is lower than the target voltage value, the energy storage element releases energy to provide energy for a load, and overload of the power pack is avoided. According to the control method, the energy utilization rate is maximized by means of self-adaptive matching of the rotating speed and the power, dynamic balance control over the actual output voltage of the power pack is achieved by means of charging and discharging control over the energy storage element, and energy waste and power pack overload are avoided.
-
公开(公告)号：EP3988375A1
公开(公告)日：2022-04-27
申请号：EP19934892.1
申请日：2019-09-26
发明人： LIAO, Hongtao , WANG, Wei , LIU, Hua , YUAN, Xinliang , XU, Liangzhong , GAO, Hongna , QIN, Qingmin , ZHANG, Zhenhua , CHEN, Zhe
IPC分类号： B60L9/00
摘要： A train power supply system and method, and a train and a computer-readable storage medium. The train power supply system comprises a control module, a power supply input module, a precharge module, a rectifier module, a power supply output module, and a direct-current return module. The precharge module comprises a direct-current precharge module and an alternating-current precharge module; the control module is used for controlling the on/off state of a contactor in the power supply input module according to the current grid voltage working condition, so that the power supply input module outputs power corresponding to the current grid voltage working condition to the precharge module and the power is output by the precharge module; the rectifier module is used for converting the alternating-current power output by the alternating-current precharge module into direct-current power; the power supply output module is used for output the direct-current power output by the direct-current precharge module or the direct-current power output by the rectifier module to each passenger train. Application to a variety of grid voltage modes can be implemented, and the power supply costs of a train can be effectively reduced.
-
公开(公告)号：EP3808627A1
公开(公告)日：2021-04-21
申请号：EP19880513.7
申请日：2019-07-05
发明人： LIU, Qiang , MAO, Yejun , ZHU, Maohua , WANG, Wei , LI, Shimin , LI, Shilin , XU, Li , YANG, Sheng , CHEN, Shiwen
IPC分类号： B61D27/00
摘要： Disclosed is a rail vehicle ventilation device, comprising an air inlet drum. Two side faces of the air inlet drum are provided with a first air port (1) and a second air port (9), a top portion of the air inlet drum is provided with a top air port (10), and a bottom portion of the air inlet drum is provided with an air outlet (11), wherein the first air port is arranged opposite the second air port, and in a free state, the top air port, the first air port, the second air port and the air outlet communicate with one another. A first flow guide plate (3), a second flow guide plate (7), and a connecting rod (4) hinged between the first flow guide plate and the second flow guide plate are arranged in the air inlet drum, wherein a top portion of the first flow guide plate is hinged to a position, located above the first air port, on the air inlet drum; a top portion of the second flow guide plate is hinged to a position, located above the second air port, on the air inlet drum; the first flow guide plate and the second flow guide plate constitute a trapezoid connecting rod structure by means of the connecting rod, and an upper end of the connecting rod structure is a large-diameter end; and the second flow guide plate can swing to a state where the second air port is sealed. Further disclosed is a rail vehicle comprising the ventilation device. According to the ventilation device, the angle between a flow guide plate and a corresponding air port is automatically adjusted according to a change in vehicle speed, and a ventilation quantity can be ensured when a vehicle operates at a high speed.
-
6.发明公开
公开(公告)号：EP3705336A1
公开(公告)日：2020-09-09
申请号：EP17930170.0
申请日：2017-12-26
发明人： FAN, Yunxin , WANG, Wei , LONG, Yuan , HUANG, Hai , GUO, Wanlu , CHEN, Shengcai , FU, Jin , LI, Xianling
IPC分类号： B60L20060101
摘要： Disclosed are a rail transit hybrid power circuit, an energy storage power pack and a power supply method thereof. The rail transit hybrid power circuit comprises a lithium battery and a grid branch; the lithium battery is connected to a super-capacitor through a boost/buck module; an output end of the super-capacitor is connected to a charging branch and a first contactor; the first contactor and the charging branch are both connected to a load; and the grid branch is connected to the load through a second contactor. The power-type super-capacitor is combined with the energy-type lithium battery, the lithium battery is combined with the super-capacitor through the DC/DC converter, and the DC/DC converter realizes the transmission of energy between the lithium battery and the super-capacitor by means of boosting and bucking, so that the characteristics of high energy density of the lithium battery and high power density of the super-capacitor are fully utilized, and the locomotive can still exert high-power traction when passing through a region having no electricity, and can absorb and reuse regenerative braking energy at run time to achieve the purposes of energy conservation and environmental protection.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.012 秒)
