CN-117400972-B - Multi-section marshalling locomotive marshalling method and hybrid locomotive

CN117400972BCN 117400972 BCN117400972 BCN 117400972BCN-117400972-B

Abstract

The invention discloses a multi-section marshalling locomotive marshalling method which comprises the steps of obtaining road condition information of a power-free line in a target running line of a locomotive, setting the lowest running speed of the locomotive, calculating the total consumption of a target wheel axle in the target running line based on the road condition information and traction required by the locomotive in an integral mode, further calculating target energy of a power battery by combining traction transmission efficiency, and forming a multi-section marshalling hybrid locomotive by using an electric locomotive module and an auxiliary power supply module marshalling configuration based on the target energy of the power battery. The invention also provides a multi-section marshalling hybrid power locomotive. The method calculates the marshalling method based on actual demands, realizes traction operation of the electric locomotive on a long line without power grid coverage, and improves flexibility and adaptability of the locomotive.

Inventors

BO KE
TAN ZHIYONG
MA YUHONG
LV BO
HE WENLIANG

Assignees

中车大连机车车辆有限公司

Dates

Publication Date: 20260505
Application Date: 20231124

Claims (8)

1. A method of multi-section consist locomotive consist comprising: acquiring road condition information of a non-power grid line in a target running line of a locomotive; setting the lowest running speed of the locomotive, calculating the total consumption of a target wheel axle in a target running line in an integral way based on the road condition information and the traction force required by the locomotive, and further calculating the target energy of the power battery by combining the traction transmission efficiency; Forming a multi-section grouped hybrid locomotive in an electric locomotive module and auxiliary power module grouping configuration based on the power battery target energy; The auxiliary power supply module comprises an energy storage vehicle module and/or a control vehicle module, when the auxiliary power supply module comprises the energy storage vehicle module and the control vehicle module, the energy storage vehicle module is respectively and electrically connected with the control vehicle module and the electric locomotive module, a plurality of energy storage elements are arranged in the energy storage vehicle module, and the control vehicle module is electrically connected with the electric locomotive module and is configured to assist traction and power supply of the electric locomotive module; the consist configuration of the hybrid locomotive includes: an electric locomotive module, a plurality of energy storage vehicle modules, and a control vehicle module group; two electric locomotive modules are grouped with a plurality of energy storage vehicle modules; an electric locomotive module is grouped with a plurality of energy storage locomotive modules.
2. The multi-consist locomotive consist method of claim 1, wherein the energy storage element comprises a lithium battery, a hydrogen fuel cell, and a super capacitor.
3. The multi-section marshalling method of claim 1, wherein said road condition information comprises a line length of a target operating line of a locomotive, ramp information, and curve information.
4. The multi-section grouped locomotive consist method of claim 1, wherein the locomotive required tractive effort = locomotive weight x unit operating base resistance + truck weight x (unit operating base resistance + ramp resistance + curve resistance + tunnel resistance).
5. The multi-section locomotive consist method of claim 4, wherein integrating the target axle consumption total in the target operating line comprises: Setting the minimum operation speed v required to be maintained by a locomotive in a target operation line, calculating the power of the locomotive by combining traction force, dividing the target operation line from point A to point B into a plurality of small sections, wherein the length of each section is x meters, and establishing a function of the power P along with the change of the distance: P=v·F(x), Wherein F (x) is traction force on each section, and the power function is integrated in a segmentation way to obtain total energy E consumed by the wheel circumference: 。
6. The multi-section consist locomotive consist method of claim 1 wherein the electric locomotive module comprises a single cab, electric traction drive system.
7. The multi-section locomotive consist method of claim 6 wherein the electric traction drive system comprises a current collector, a high voltage electrical appliance, a power conversion and control device, and a traction motor.
8. A multi-section consist hybrid locomotive, organized using the method of any one of claims 1-7, wherein the locomotive comprises an electric locomotive module, an auxiliary power module.

Description

Multi-section marshalling locomotive marshalling method and hybrid locomotive Technical Field The invention relates to the technical field of vehicle design, in particular to a multi-section marshalling method for a locomotive and a hybrid locomotive. Background Conventional power locomotives typically rely on mains electricity or fuel drive. Wherein, the fuel oil driving causes a certain pollution to the environment. Therefore, new energy and hybrid locomotives have become a trend of reducing energy consumption, protecting environment and reducing emission, and hybrid locomotives combined with power batteries have good application prospects. Although the electric locomotive has no emission, the electric locomotive has some limitations, such as being limited by power grid coverage when a short circuit is moved into/out of warehouse, being unusable without power grid branch transportation, and the operation of the electric locomotive is limited. Some new hybrid locomotives may be equipped with power batteries and other technologies, so that the electric locomotives may also have the capability of moving in a short distance under certain conditions, but due to space, axle weight and other limitations, the electric locomotives cannot perform longer-route traction operation without power grid supply. Accordingly, there is a need in the art for improved hybrid locomotive consist. Disclosure of Invention Therefore, an object of the embodiments of the present invention is to provide a multi-section marshalling method for a locomotive and a hybrid locomotive, wherein the method calculates the marshalling method based on actual requirements, so that the electric locomotive can perform traction operation on a long line without power grid coverage, and flexibility and adaptability of the locomotive are improved. In view of the above object, an embodiment of the present invention provides a multi-section marshalling method for a locomotive, including the following steps: acquiring road condition information of a non-power grid line in a target running line of a locomotive; Setting the lowest running speed of the locomotive, calculating the total consumption of a target wheel axle in a target running line in an integral way based on road condition information and traction force required by the locomotive, and further calculating the target energy of a power battery by combining traction transmission efficiency; Based on the target energy of the power battery, the electric locomotive modules and the auxiliary power supply modules are grouped to form a multi-section grouped hybrid locomotive. In some embodiments, the auxiliary power module includes an energy storage vehicle module and/or a control vehicle module, and when the auxiliary power module includes the energy storage vehicle module and the control vehicle module, the energy storage vehicle module is electrically connected with the control vehicle module and the electric locomotive module, respectively, the energy storage vehicle module has a plurality of energy storage elements therein, and the control vehicle module is electrically connected with the electric locomotive module and configured to assist traction and power supply of the electric locomotive module. In some embodiments, the energy storage element includes a lithium battery, a hydrogen fuel cell, and a supercapacitor. In some embodiments, a consist configuration for a hybrid locomotive includes: an electric locomotive module, a plurality of energy storage vehicle modules, and a control vehicle module group; two electric locomotive modules are grouped with a plurality of energy storage vehicle modules; an electric locomotive module is grouped with a plurality of energy storage locomotive modules. In some embodiments, the road condition information includes a line length of a target operating line of the locomotive, ramp information, and curve information. In some embodiments, locomotive required tractive effort = locomotive weight x unit operating base resistance + truck weight x (unit operating base resistance + ramp resistance + curve resistance + tunnel resistance). In some embodiments, integrating the target axle consumption total in the target operating line includes: Setting the minimum operation speed v required to be maintained by a locomotive in a target operation line, calculating the power of the locomotive by combining traction force, dividing the target operation line from point A to point B into a plurality of small sections, wherein the length of each section is dx meters, and establishing a function of the power changing along with the distance: P=v·F(x), the power function is subjected to sectional integration to obtain total energy E consumed by the wheel circumference: 。 in some embodiments, the electric locomotive module includes a single cab, an electric traction drive system. In some embodiments, an electric traction drive system includes a current collector, a high voltage electr