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025-57931977

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南京华士电子科技有限公司

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Metro rail auxiliary converter
Subway/Light Rail Auxiliary Converter is mainly used in Urban Rail Transit Vehicle Auxiliary Power Supply System, which includes Inverter Unit and Converter Unit to supply power for medium and low voltage electrical equipment of vehicles.
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Auxiliary Power Unit
Monorail traffic system is an important part of urban traffic system, which has the advantages of saving floor space and relieving traffic pressure, and has strong adaptability to complex terrain.
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Monorail【Driver Unit】
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Pulling motor
Subway traction motor adopts three-phase rat cage asynchronous electric motor, using frequency conversion and variable voltage speed regulation mode. The traction converter output three-phase AC power to power the stator winding of the traction motor.The rotating magnetic field is generated on the motor stator winding, which cuts the rotor conductor to sense the electromotive force and current. The rotor conductor is exerted by the electromagnetic force under the action of the magnetic field, forming the electromagnetic torque, driving the motor rotation, converting the electric energy into mechanical energy, and driving the train to run.
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Metro traction converter
Metro/light rail traction converter is mainly used in the traction system of urban rail transit vehicles. Its principle is to convert the power supply of catenary into the power supply needed by traction motor of vehicles to provide traction force and electric braking force for the whole vehicle.
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linear motion
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Energy storage device
La batería y El sistema de gestión desarrollados independientemente por la compañía huashi reemplazaron la batería importada original del proyecto de tranvía Hexi Kirin y reemplazaron la batería con titanato de litio. en comparación con El litio ternario original, la Unidad termostática y la batería están integradas para ahorrar Espacio y reducir El ensamblaje de tornillos, lo que facilita El mantenimiento de la caja y reduce los costos de mantenimiento y El ciclo de respuesta.
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Energy storage device
The energy storage device adopts lithium titanate battery, which has good safety, high and low temperature performance, long cycle life and wide working environment temperature range (-20℃~45℃). The battery is cooled by liquid, and the weight of the whole machine is less than 1500kG;. Each internal unit adopts modular design, which is easy to maintain; Communicate with the MVB network of the whole train. At the same time, the control unit of the whole train is provided with the maintenance Ethernet, and the BMS unit is provided with the maintenance CAN network to support the download and maintenance of fault information.
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Water Cooling Device
The water-cooling device should be able to cool the temperature of the circulating fluid in the system to below 60℃, so as to ensure that the converter and traction motor can work normally under vehicle operation. The water cooling device shall automatically adjust the fan speed according to the water temperature at the outlet of the heat exchanger, so as to adjust the water supply temperature of the water cooling device. The water-cooling device uploads the running status and alarm information of the water-cooling device to the vehicle master control through communication.
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Traction Motor
Permanent magnet synchronous motor (PMSM) has the characteristics of high efficiency, high power factor and wide speed range. At the same time, the robust control method is applied to the energy recovery technology of hybrid electric vehicle. The overload capacity of permanent magnet motor is strong.
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Traction converter
The main purpose of traction converter is to convert DC voltage obtained from new energy into three-phase voltage with variable frequency and voltage transformation, which is used to control the traction motor to drive the vehicle to run in traction, inertia and braking conditions. The IGBT semiconductor devices of the traction converter are effectively cooled by circulating water cooling, and the structure of the inverter is very compact. Through internal and external cooling cycles, the heat of the inverter is effectively transferred out to prevent overheating. Small size, high energy.
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Traction converter
The traction controller of rubber-tyred track car is mainly used in the traction system of rubber-tyred track car in urban ground. Its principle is to convert the DC power provided by the new energy battery or super capacitor of the track car into the power required by the permanent magnet synchronous motor of the car, providing traction and electric braking force for the whole car.
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Permanent Magnet Synchronous Motor
The traction controller of rubber-tyred track car is mainly used in the traction system of rubber-tyred track car in urban ground. Its principle is to convert the DC power provided by the new energy battery or super capacitor of the track car into the power required by the permanent magnet synchronous motor of the car, providing traction and electric braking force for the whole car.
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Water E nergy Control Box
Adjust the water temperature of the cooler by controlling the rotating speed of the cooling system motor. Finally, the function of controlling the temperature of the cooling system is achieved. The control unit has the function of self-diagnosis. During the operation of the cooling system, the cooling control system can reliably record and store relevant information such as running state and faults, and can exchange data with the portable PC through the standard maintenance port (Ethernet). The control unit has fault recording function. The fault information includes at least: the fault code, the time when the fault occurred and disappeared, and the number of repeated failures. TRDP real-time communication system is adopted for communication of cooling system.
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High Pressure Box
The high-voltage box integrates the main circuit contactor, fuse and other protection devices, and is equipped with a network voltage sensor, which can monitor the network voltage. Small size, multi-level protection and network voltage monitoring.
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Auxiliary filter
Each traction main circuit has a line filter. The line filter comprises a line reactor, which is arranged in the filter box. In addition to the line filter, the auxiliary filter box integrates the auxiliary transformer and output filter reactor. At the same time, the filter box and the auxiliary filter box are equipped with fans, which are cooled by forced air.
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Contact person: manager Xu

Telephone:025-57931977

E-mail:xzj@huashi.cc

Address: No.26 Fengyi Road, Yuhua Economic Development Zone, Nanjing, Jiangsu Province

 

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Nanjing Huashi Electronic Scientific Co., Ltd.      苏ICP备2020052654号-1      Power by300.cn