A control method for an AC drive hybrid electric shunting locomotive

A control method and hybrid power technology, which is applied in the direction of engine-driven traction, locomotives, motor vehicles, etc., can solve the problems that cannot satisfy the high-power traction of locomotives, and the power of the whole vehicle is limited, so as to improve the efficiency of the dynamic system and reduce energy consumption. consumption and reduce exhaust emissions

Active Publication Date: 2021-03-23
CRRC DALIAN CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the battery SOC value is sufficient, the locomotive will not start the diesel engine. At this time, the maximum output power of the locomotive is only the output power of the power battery, and the power of the whole vehicle is limited, which cannot meet the demand for high-power traction of the locomotive.

Method used

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  • A control method for an AC drive hybrid electric shunting locomotive

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Embodiment

[0044] according to figure 1 The traction force and locomotive speed relationship curves of the AC drive hybrid shunting locomotive at different levels of the controller handle are shown, and the maximum power of the locomotive at each handle level is calculated. Then calculate the output power of the power battery to meet the maximum power requirements of the locomotive below several levels, and obtain the preset level. For example, in this embodiment, under the 1-8 handle level, the output power of the power battery can fully meet the needs of the locomotive;

[0045] According to the formula V=P÷F, calculate the highest speed V at which the maximum output power of the power battery can maintain the operation of the locomotive at each level MAX , get the set speed; where:

[0046] P - the maximum output power of the power battery;

[0047] F——Maximum traction at each level;

[0048] V - locomotive speed;

[0049] Set the minimum SOC value of the power battery, for exampl...

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Abstract

The invention discloses a control method of an AC driving hybrid power shunting locomotive. The control method comprises the steps that during running, the locomotive collects the driver controller lever level, the current locomotive speed and the SOC value of a power battery; when the SOC value of the power battery is less than the preset SOC value, a diesel engine charges the power battery; andwhen the SOC value of the power battery is greater than the preset SOC value, whether the diesel engine is started or not is determined according to the power of the locomotive. Through the control method of the AC driving hybrid power shunting locomotive, whether the diesel engine is started or not is determined according to the power of the locomotive; the requirement for high-power traction ofthe locomotive can be met, unnecessary starting of the diesel engine can be avoided; and the service life of the diesel engine is prolonged while the energy-saving effect is achieved.

Description

technical field [0001] The invention relates to the technical field of locomotive operation control, in particular to a control method for an AC drive hybrid power shunting locomotive. Background technique [0002] Shunting locomotive refers to the locomotive used for shunting operations such as train marshalling, dismantling, line transfer, and vehicle pickup and delivery. , the requirements for the starting traction force of the locomotive are relatively high, and the power requirement is relatively low; while under small operating conditions, the locomotive is in a long-term traction operation for a relatively long distance, and the requirements for the starting traction force of the locomotive are low, while the continuous traction capacity of the locomotive and power requirements are relatively high. [0003] When the shunting locomotive is in the shunting condition, the average speed of the locomotive is low, and the feedback energy of the dynamic braking of the locom...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B61C7/04B61C17/00B60L50/15
CPCB60L2200/26B60L2240/12B60L2240/44B60L2240/54B61C7/04B61C17/00B60L50/15Y02T10/70Y02T30/00
Inventor温吉斌赵刚贾晓勇高磊陈旭王若愚
OwnerCRRC DALIAN CO LTD