Power control system of new energy electric wheel mining dump truck

A power control system and technology for mining dump trucks, which are applied in electric braking systems, electric vehicles, electric power devices, etc., can solve the problems of many diesel generator set failures, exhaust emissions polluting the environment, vibration and noise, etc. The effect of reducing energy consumption cost, reducing development cost and improving performance

Pending Publication Date: 2020-10-16
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of drive system has poor characteristics when the diesel engine is at low speed, the vibration and noise are large, the diesel generator set has many faults,

Method used

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  • Power control system of new energy electric wheel mining dump truck
  • Power control system of new energy electric wheel mining dump truck

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[0015] New energy electric wheel mining dump truck power control system, including lithium battery, hydrogen fuel cell engine, DC bus, first DC / DC triple chopper, second DC / DC triple chopper, third DC / DC triple The chopper, lithium battery and hydrogen fuel cell engine are respectively connected in parallel to the DC bus. The first DC / DC triple chopper takes power from the DC bus and supplies power to the armature winding of the first DC motor. The second DC / DC triple The chopper takes power from the DC bus and supplies power to the armature winding of the second DC motor. The third DC / DC triple chopper takes power from the DC bus and excites the first DC motor and the second DC motor. Winding power supply. The field winding L1 of the first direct current motor and the field winding L2 of the second direct current motor are connected in series and then powered by a third DC / DC triple chopper. Including the auxiliary inverter, the auxiliary inverter takes power from the DC bus,...

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Abstract

The invention relates to an electric wheel mining dump truck, in particular to a power control system of a new energy electric wheel mining dump truck. The defects and problems existing in an electricwheel mining dump truck which adopts a diesel generator set to provide power are solved. The power control system of the new energy electric wheel mining dump truck comprises a lithium battery, a hydrogen fuel cell engine, a direct-current bus, a first DC/DC triple chopper, a second DC/DC triple chopper and a third DC/DC triple chopper, wherein the lithium battery and the hydrogen fuel cell engine are respectively connected in parallel with the direct-current bus; the first DC/DC triple chopper takes power from the direct-current bus and supplies power to an armature winding of the first DC motor; the second DC/DC triple chopper takes power from the direct-current bus and supplies power to the armature winding of the second DC motor, and the third DC/DC triple chopper takes power from thedirect-current bus and supplies power to the excitation windings of the first DC motor and the second DC motor. The power control system adopts a hydrogen fuel engine and lithium battery hybrid energy system to replace the diesel generator set to provide power.

Description

technical field [0001] The invention relates to an electric wheel mining dump truck, in particular to a new energy electric wheel mining dump truck power control system. Background technique [0002] The electric wheel mining dump truck is an off-highway truck used for mine transportation, the smallest is 50T, the largest is 400T, and it was manufactured by GE in the United States and Komatsu in Japan in the last century. The electric wheel mining dump truck is driven by two axles, which are respectively driven by two DC motors. At that time, China imported a large number of vehicles for open-pit coal mines and iron ore copper mines. It was only in this century that domestic repairs and new manufactures began, but they were all driven by AC-DC or AC-DC-AC systems with diesel engines and generators. This kind of drive system has poor characteristics when the diesel engine is at low speed, large vibration and noise, many faults of diesel generator sets, complex system, poor ...

Claims

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Application Information

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IPC IPC(8): B60K1/02B60L50/50B60L7/02H02J1/10H02J7/34H02J7/00
CPCB60K1/02B60L50/50B60L7/02H02J1/10H02J7/34H02J7/0063H02J7/0013H02J2300/30Y02T10/70
Inventor 苟军善泮振峰郭海军李宏智黄新宇刘珀
Owner CRRC YONGJI ELECTRIC CO LTD
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