WO2023098142A1 - 一种带动力电池车的三动力机车组及可扩展牵引拓扑结构 - Google Patents
一种带动力电池车的三动力机车组及可扩展牵引拓扑结构 Download PDFInfo
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- WO2023098142A1 WO2023098142A1 PCT/CN2022/112354 CN2022112354W WO2023098142A1 WO 2023098142 A1 WO2023098142 A1 WO 2023098142A1 CN 2022112354 W CN2022112354 W CN 2022112354W WO 2023098142 A1 WO2023098142 A1 WO 2023098142A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
- B61C3/02—Electric locomotives or railcars with electric accumulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C7/00—Other locomotives or motor railcars characterised by the type of motive power plant used; Locomotives or motor railcars with two or more different kinds or types of motive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- the invention belongs to the technical field of locomotives, and in particular relates to a three-power locomotive unit with a power battery car and an expandable traction topology structure.
- Diesel locomotives are not suitable for pollutant-sensitive areas in long tunnels where diesel engines are not suitable.
- the electric locomotive cannot be used when the catenary fails, so the prior art cannot satisfy the rescue and traction in the long tunnel under the situation that the catenary has no electricity.
- the hybrid electric locomotive is an on-board diesel engine plus an on-board power battery, which cannot effectively use the railway catenary. And limited by the weight and space of the locomotive, the capacity of the vehicle-mounted power battery is small, which cannot support long-term pure battery traction use, such as pure electric rescue in a long tunnel under catenary failure conditions.
- the current locomotives basically have 4-6 moving shafts, the adhesion weight is limited, and the traction force that can be provided is limited. It is difficult to meet the starting and traction requirements of heavy-load train traction or rescue under the condition of large slopes; at the same time, The braking force it can provide is limited. When the brake system of the rescued train fails, it is difficult to meet the driving safety and slope parking when the heavy-load train is towed and rescued under the condition of a large slope. At present, the traction and rescue of heavy-load trains under the condition of large ramps can only be realized by adding rescue locomotives.
- the object of the present invention is to provide a three-power locomotive unit with power battery vehicles and an expandable traction topology structure in order to overcome the defects of the prior art.
- a three-power locomotive group with a power battery car and an expandable traction topology structure including a three-power locomotive and at least one external power battery car connected to the three-power locomotive, said The external power battery car can be equipped and reconnected on demand, and the three-power locomotive has three power sources: pantograph, power battery and diesel engine.
- the external power battery car has its own traction inverter system and traction motor, and the control signals of the traction inverter system and traction motor are provided by the reconnection of three-power locomotives.
- the control signals of the traction inverter system and traction motor are provided by the reconnection of three-power locomotives.
- the external power battery vehicle has its own train braking system, and by adding 4-6 braking shafts, it can provide additional braking force when the braking system of the rescued train fails, which can meet the conditions of large ramps Traffic safety and ramp parking requirements for heavy-duty trains.
- connection mode of the three-power locomotive and the external power battery vehicle is an expandable DC bus traction topology.
- the three-powered locomotive includes a pantograph, a transformer, a diesel generator set, a main circuit breaker, a rectifier, a storage battery E1, inverters D1-D6 and motors M1-M6, and the pantograph communicates with the main circuit breaker Terminal 1 of the transformer is connected, terminal 2 of the transformer is connected to ground, terminal 3 of the transformer is connected to terminal 1 of the rectifier through a switch K1, the diesel generator set is connected to terminal 2 of the rectifier through a switch K2, and the rectifier Terminal 3 of switch K3, terminal 1 of inverter D1, terminal 1 of inverter D2, terminal 1 of inverter D3, terminal 1 of inverter D4, terminal 1 of inverter D5, inverter Terminal 1 of the converter D6 is connected to the DC bus, terminal 4 of the rectifier, terminal 1 of the switch K4, terminal 2 of the inverter D1, terminal 2 of the inverter D2, terminal 2 of the inverter D3, inverter Terminal 2 of the inverter D4, terminal 2 of the inverter
- the storage battery E1 is a small-capacity power battery.
- the external power battery vehicle includes a storage battery E2, an inverter D7-D10 and a motor M7-M10, and one end of the storage battery E2 is respectively connected to the DC bus, one end of the inverter E7, and the inverter through the switch K5.
- Terminal 1 of E8, terminal 1 of inverter E9 and terminal 1 of inverter E10 are connected, and the other terminal of the battery E2 is respectively connected to the DC bus, terminal 2 of inverter E7, and terminal 1 of inverter E8 through switch K6.
- 2 terminals, 2 terminals of the inverter E9 are connected to 2 terminals of the inverter E10, 3 terminals of the inverter D7 are connected to the motor M7, 3 terminals of the inverter D8 are connected to the motor M8, and the inverter The 3 terminals of the inverter D9 are connected to the motor M9, and the 3 terminals of the inverter D10 are connected to the motor M10.
- the storage battery E2 is a large-capacity power battery.
- the train set of the present invention has three power sources, which are respectively suitable for different application requirements.
- the vehicle group of the present invention adopts an external battery mode and an expandable power bus topology. Theoretically, according to the needs, the method of adjusting the battery capacity of the external battery vehicle and increasing the number of external battery vehicles can be used to flexibly increase the available total. Power battery capacity.
- the train set of the present invention is used as a hot standby rescue locomotive.
- the catenary loses power, its reconnected large-capacity power battery can meet the emission-free rescue traction requirements in long tunnels.
- the vehicle group of the present invention When used as a hot standby rescue locomotive, it can effectively utilize the adhesive weight of its reconnected large-capacity power battery vehicle, and its moving shaft can provide additional traction and braking force to meet the large load traction on large slopes. And the failure of the braking system of the rescued locomotive can only rely on the use requirements of extreme working conditions such as locomotive braking.
- the general shunting operation tasks at the hot standby station for rescue locomotives are small compared to the special marshalling station, but they are essential.
- the three-power locomotives in the train group can individually undertake temporary shunting operations at the station Vehicle operation tasks and electric traction tasks are fully utilized.
- the power battery vehicle has simple configuration and low cost, which reduces the economic pressure on equipment purchase.
- the vehicle-mounted power battery of the three-power locomotive of the present invention can be interchanged with the power battery on the external power battery vehicle in turn after being used to a certain extent in daily operations, so as to improve the utilization degree of the power battery.
- the equipment equipped with the external power battery car of the present invention can be used as a spare part replacement for a three-power locomotive to reduce the pressure on maintenance spare parts.
- Fig. 1 is a structural diagram of the present invention
- Fig. 2 is a diagram of the traction topology of the scalable DC bus in the present invention.
- the terms “installation”, “installation”, “connection” and “connection” should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components.
- the specific meanings of the above terms in the present invention can be understood in specific situations.
- the present invention should point out that in the present invention, if the structure, connection relationship, positional relationship, and power source relationship involved in the present invention are not specifically written, the structure, connection relationship, positional relationship, and power source relationship involved in the present invention etc. are known to those skilled in the art on the basis of the prior art without creative efforts.
- the present invention discloses a three-power locomotive group with a power battery car and an expandable traction topology, including a three-power locomotive and at least one external power battery car connected to the three-power locomotive, the three
- the power locomotive has three power sources: pantograph, power battery and diesel engine. It also takes into account the functions of shunting operation, main line traction and rescue in emergency main line tunnel. By analyzing the traction or rescue needs, and evaluating the line length, slope and traction load requirements for pure battery use, more external power battery vehicles can be equipped and reconnected as needed.
- the diesel engine-pantograph-small-capacity power battery tri-power locomotive and the external large-capacity power battery car are fixed and reconnected when performing main line traction and rescue.
- the power of the large-capacity power battery can meet the traction and rescue in the long-distance tunnel environment, and avoid the exhaust emission of diesel engines in the tunnel from affecting the personal safety of drivers and passengers;
- the external large-capacity battery car has its own traction inverter system, traction motor and other main drive system components and related auxiliary equipment. Traction control signals, etc. are provided by reconnection of three-power locomotives. And by adding 4-6 traction drive shafts, additional traction is provided, which can meet the starting and traction requirements of heavy-load trains under conditions of large slopes.
- the external large-capacity battery car has its own train braking system. Add 4-6 brake shafts to provide additional braking force when the brake system of the rescued train fails, which can meet the driving safety and slope parking requirements of heavy-load trains under large slope conditions.
- the DC links of the three-power locomotive and the external battery car are connected to the grid, and multi-vehicle expansion can be realized.
- the traction circuits of each vehicle owner can realize mutual redundancy and complement each other.
- the catenary and diesel engine of the three-power locomotive can charge each external battery car.
- the three-power locomotive and the external battery car realize the control reconnection, and make coordinated actions in response to the driver's instructions.
- the three-power locomotive is connected to the air duct of the external battery car to make coordinated actions in response to the driver's instructions.
- this vehicle group can choose to reconnect multiple external battery vehicles.
- External power battery vehicle box-type car body, multiple sets of modular power battery packs (single set and three-power locomotive power battery can be interchanged), inverter device, bogie with traction and air brake system, etc.
- connection mode of the three-power locomotive and the external power battery vehicle is an expandable DC bus traction topology.
- the three-power locomotive includes a pantograph, a transformer, a diesel generator set, a main circuit breaker, a rectifier, a storage battery E1, inverters D1-D6, and motors M1-M6.
- Terminal 2 of the transformer is connected to the ground, terminal 3 of the transformer is connected to terminal 1 of the rectifier through a switch K1, the diesel generator set is connected to terminal 2 of the rectifier through a switch K2, and terminal 3 of the rectifier , one end of switch K3, one end of inverter D1, one end of inverter D2, one end of inverter D3, one end of inverter D4, one end of inverter D5, and one end of inverter D6
- Terminal 1 of the rectifier is connected to the DC bus, terminal 4 of the rectifier, one terminal of the switch K4, terminal 2 of the inverter D1, terminal 2 of the inverter D2, terminal 2 of the inverter D3, and terminal of the inverter D4 2 terminals, 2 terminals of the inverter D5, and 2 terminals of the inverter D6 are all connected to the DC bus, the other end of the switch K3 and the other end of the switch K4 are connected to the battery E1, and the 3 terminals of the inverter D1 3 terminals of the in
- the external power battery vehicle includes a storage battery E2, inverters D7-D10 and motors M7-M10, and one end of the storage battery E2 is respectively connected to the DC bus, 1 terminal of the inverter E7, and 1 terminal of the inverter E8 through the switch K5.
- Terminal 1 of the inverter E9 is connected to terminal 1 of the inverter E10, and the other terminal of the battery E2 is respectively connected to the DC bus, terminal 2 of the inverter E7, terminal 2 of the inverter E8, The 2 ends of the inverter E9 are connected to the 2 ends of the inverter E10, the 3 ends of the inverter D7 are connected to the motor M7, the 3 ends of the inverter D8 are connected to the motor M8, and the 3 ends of the inverter D9 are connected to the motor M8.
- the 3 terminals are connected to the motor M9, and the 3 terminals of the inverter D10 are connected to the motor M10.
- this topology diagram The characteristic of this topology diagram is that the three-power vehicle itself realizes the traction transmission topology of three power sources. Its DC bus is also the external physical interface of the tri-powered vehicle itself.
- the DC bus of the battery car is the traction transmission topology of the battery single power source. Its DC bus is also the external physical interface of the TV car itself.
- the DC buses of two vehicles can be connected in parallel to realize the total expansion of DC.
- the locomotive unit with three power sources in the present invention can be decompiled and used as a shunting locomotive and main line traction alone, and more intermediate power batteries can be reconnected according to needs to realize high-power pure battery main line traction and rescue occasions. It can also be used in main line traction and rescue occasions that require large traction and braking force, taking into account shunting and rescue functions in large ramps and tunnels.
- the power battery vehicle in the present invention is only equipped with basic on-board equipment such as an air brake system, a traction system, and a power battery, and does not have equipment such as an air source system and a driver's cab, so as to realize the required functions and simplify the overall configuration and cost.
- the order came from the head car.
- the three-power locomotive in the present invention can realize traction by three power sources, select the power source according to needs, and simultaneously obtain the electric energy provided by other vehicles through its expandable DC bus, and can also charge the battery on the power battery car.
- the traction braking command can be transmitted to the power battery vehicle through the control reconnection.
- the DC bus is the physical external interface of the locomotive, and multiple DC buses of power battery vehicles can be connected in parallel.
- the invention consists of a three-power locomotive and one or more power battery vehicles with traction and braking functions to form a three-power locomotive group.
- the three-power locomotive has three power sources, pantograph, power battery, and diesel engine, and its auxiliary systems.
- power battery vehicles are characterized by on-board power batteries and external electrical interfaces. At the same time, they can be equipped with optional traction drive systems to achieve traction functions.
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Abstract
一种带动力电池车的三动力机车组及可扩展牵引拓扑结构，包括三动力机车和与三动力机车连接的至少一台外挂动力电池车，所述外挂动力电池车可按需配备和重联，所述三动力机车具有受电弓、动力电池和柴油机三种动力源。该车组具有三种动力源，分别适用于不同的运用需求，采用外挂电池方式，以及可扩展的动力总线拓扑结构，理论上可以根据需要，采用调整外挂电池车车载电池量和增加外挂电池车数量的方式，灵活增大可利用的总动力电池容量。
Description
本发明属于机车技术领域，具体涉及一种带动力电池车的三动力机车组及可扩展牵引拓扑结构。
我国有多条世界独有的多隧道大坡道高原铁路，如青藏铁路，川藏铁路等，其最长单个隧道已达数十公里以上，限制坡道已达普通铁路限制坡道的三倍。其线路上事故情况下的救援问题是一直困扰行业的难题，特别是在接触网故障条件下大坡道长隧道内的救援，目前尚无绝对安全的救援预案，面临的主要问题有:当前救援热备机车多为本务机车同型，缺少专门针对特定线路和环境条件开发的救援机车或机车组；隧道内采用柴油机牵引会威胁司乘人员和旅客人身安全；依靠车载动力电池牵引的话可牵引距离有限，无法完成全隧道电池牵引；救援大负载列车在上坡时牵引力不足；救援制动失效后的大负载列车在下坡时制动力不足；如果针对以上问题，采用配备多台机车长期热备来应对，又存在经济性不好，利用率不高的问题。
现有技术多为柴油机或受电***动力机车，亦或是柴油机-动力电池混合动力机车，柴油机机车不适用于长大隧道内这种不宜使用柴油机的污染物敏感区域，带受电弓的电力机车在接触网故障时无法使用，故现有技术均无法满足接触网无电情况下的长大隧道内的救援和牵引。
混合动力机车为车载柴油机加车载动力电池，不能有效利用铁路接触网。 并且受限于机车重量和空间，所装车载动力电池容量较小，无法支撑长时间纯电池牵引使用，如接触网故障条件下的长隧道内的纯电救援。
另外，目前机车所具有的动轴基本都为4-6根，黏着重量有限，所能提供的牵引力有限，难以满足大坡道条件下大负载列车牵引或救援时的起动和牵引需求；同时，其能提供的制动力有限，在被救援列车制动***失效的情况下，难以满足大坡道条件下大负载列车牵引和救援时的行车安全和坡道停车。目前要解决大坡道条件下大负载列车的牵引和救援，只有靠增加救援机车实现。
发明内容
本发明的目的在于，为克服现有技术缺陷，提供了一种带动力电池车的三动力机车组及可扩展牵引拓扑结构。
本发明目的通过下述技术方案来实现：一种带动力电池车的三动力机车组及可扩展牵引拓扑结构，包括三动力机车和与三动力机车连接的至少一台外挂动力电池车，所述外挂动力电池车可按需配备和重联，所述三动力机车具有受电弓、动力电池和柴油机三种动力源。
进一步地：所述外挂动力电池车自带牵引逆变***和牵引电机，所述牵引逆变***和牵引电机的控制信号由三动力机车重联提供，通过增加4-6根牵引驱动轴，提供额外的牵引力，满足大坡道条件下大负载列车的起动和牵引需求。
进一步地：所述外挂动力电池车自带列车制动***，通过增加4-6根制动轴，在被救援列车制动***失效的情况下，提供额外的制动力，能够满足大坡道条件下大负载列车的行车安全和坡道停车需求。
进一步地：所述三动力机车和外挂动力电池车的连接方式为可扩展直流总线牵引拓扑结构。
进一步地：所述三动力机车包括受电弓、变压器、柴油发电机组、主断路 器、整流器、蓄电池E1、逆变器D1-D6和电机M1-M6，所述受电弓通过主断路器与变压器的1端连接，所述变压器的2端连接到地，所述变压器的3端通过开关K1与整流器的1端连接，所述柴油发电机组通过开关K2与整流器的2端连接，所述整流器的3端、开关K3的一端、逆变器D1的1端、逆变器D2的1端、逆变器D3的1端、逆变器D4的1端、逆变器D5的1端、逆变器D6的1端均连接到直流总线，所述整流器的4端、开关K4的一端、逆变器D1的2端、逆变器D2的2端、逆变器D3的2端、逆变器D4的2端、逆变器D5的2端、逆变器D6的2端均连接到直流总线，所述开关K3的另一端和开关K4的另一端均连接蓄电池E1，所述逆变器D1的3端连接电机M1，所述逆变器D2的3端连接电机M2，所述逆变器D3的3端连接电机M3，所述逆变器D4的3端连接电机M4，所述逆变器D5的3端连接电机M5，所述逆变器D6的3端连接电机M6。
进一步地：所述蓄电池E1为小容量动力电池。
进一步地：所述外挂动力电池车包括蓄电池E2、逆变器D7-D10和电机M7-M10，所述蓄电池E2的一端通过开关K5分别与直流总线、逆变器E7的1端、逆变器E8的1端、逆变器E9的1端和逆变器E10的1端连接，所述蓄电池E2的另一端通过开关K6分别与直流总线、逆变器E7的2端、逆变器E8的2端、逆变器E9的2端和逆变器E10的2端连接，所述逆变器D7的3端连接电机M7，所述逆变器D8的3端连接电机M8，所述逆变器D9的3端连接电机M9，所述逆变器D10的3端连接电机M10。
进一步地：所述蓄电池E2为大容量动力电池。
前述本发明主方案及其各进一步选择方案可以自由组合以形成多个方案，均为本发明可采用并要求保护的方案。本领域技术人员在了解本发明方案后根据现有技术和公知常识可明了有多种组合，均为本发明所要保护的技术方案， 在此不做穷举。
本发明的有益效果：
a)本发明车组具有三种动力源，分别适用于不同的运用需求。
b)本发明车组采用外挂电池方式，以及可扩展的动力总线拓扑结构，理论上可以根据需要，采用调整外挂电池车车载电池量和增加外挂电池车数量的方式，灵活增大可利用的总动力电池容量。
c)本发明车组作为热备救援机车使用，在接触网失电时，其重联的大容量动力电池能够满足长大隧道内的无排放救援牵引需求。
d)本发明车组作为热备救援机车使用时，能够有效利用其重联的大容量动力电池车的黏着重量，其动轴能提供额外的牵引力和制动力，满足大坡道大负荷牵引，以及被救援机车制动***失效仅能依靠机车制动等极限工况的使用要求。
e)救援机车热备站点一般的调车作业任务相对于专门的编组站来说调车作业较小，但是又必不可少，车组中的三动力机车可以单台单独承担站场临时的调车作业任务和电力牵引任务，得到充分利用。动力电池车配置简单，成本较低，减轻设备购置经济压力。
f)本发明三动力机车车载动力电池在日常作业使用到一定程度后，可以和外挂动力电池车上的动力电池轮流整体互换，提高动力电池的利用程度。
g)本发明外挂动力电池车所配备的设备，可以作为三动力机车的备品备件替换使用，减轻维保备件压力。
图1是本发明结构图；
图2是本发明中可扩展直流总线牵引拓扑结构图。
以下通过特定的具体实例说明本发明的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本发明的精神下进行各种修饰或改变。需说明的是，在不冲突的情况下，以下实施例及实施例中的特征可以相互组合。
需要说明的是，为使本发明实施例的目的、技术方案和优点更加清楚，下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
此外，术语“水平”、“竖直”、“悬垂”等术语并不表示要求部件绝对水平或悬垂，而是可以稍微倾斜。如“水平”仅仅是指其方向相对“竖直”而言更加水平，并不是表示该结构一定要完全水平，而是可以稍微倾斜。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具 体含义。
另外，本发明要指出的是，本发明中，如未特别写出具体涉及的结构、连接关系、位置关系、动力来源关系等，则本发明涉及的结构、连接关系、位置关系、动力来源关系等均为本领域技术人员在现有技术的基础上，可以不经过创造性劳动可以得知的。
实施例1：
参考图1所示，本发明公开了一种带动力电池车的三动力机车组及可扩展牵引拓扑结构，包括三动力机车和与三动力机车连接的至少一台外挂动力电池车，所述三动力机车具有受电弓、动力电池和柴油机三种动力源。兼顾调车作业、干线牵引和紧急情况干线隧道内救援的功能。通过分析牵引或救援需求，评估需要纯电池使用的线路长度、坡道和牵引负载的需要，可以按需配备和重联更多的外挂动力电池车。
于高原铁路，大多数的救援机车热备站，日常调车作业所需要的调车机车数仅一台，在日常站场调车和接触网正常时的干线牵引、救援功能下，三动力机车单独使用，调车模式采用动力电池或柴油机提供动力，自带小容量动力电池在等待期间给机车辅助***供电。在需要非隧道、接触网正常时的干线牵引和救援作业，采用受电弓提供动力。
在具有长隧道大坡道的线路条件下，如果接触网发生故障，进行干线牵引和救援时，柴油机-受电弓-小容量动力电池三动力机车和外挂大容量动力电池车双机固定重联使用，所带大容量动力电池的电量能满足在长距离隧道环境内的牵引和救援，避免隧道内柴油机废气排放影响司乘和旅客的人身安全；
外挂大容量电池车自带牵引逆变***，牵引电机等主传动***部件和相关辅助设备。牵引控制信号等由三动力机车重联提供。并通过增加4-6根牵引驱 动轴，提供额外的牵引力，能够满足大坡道条件下大负载列车的起动和牵引需求。
外挂大容量电池车自带列车制动***。增加4-6根制动轴，在被救援列车制动***失效的情况下，提供额外的制动力，能够满足大坡道条件下大负载列车的行车安全和坡道停车需求。
三动力机车与外挂电池车的直流环节并网，并且可以实现多车扩展，各车主牵引电路实现相互冗余补充，同时三动力机车的接触网和柴油机可以给各个外挂电池车充电。
三动力机车与外挂电池车实现控制重联，对司机指令做出协同动作。
三动力机车与外挂电池车的风管连接，对司机指令做出协同动作。
本车组根据救援或牵引时不同的电池电量、牵引力、制动力需要，可以选择重联多台外挂电池车。
救援发生的情况很少，但是救援设备作为安全的最后一条防线，又是铁路不能缺少的，为满足大坡道多隧道线路的救援需求，如果采用多台全功能机车随时待命是不经济的。采用本方案，外挂电池车平时不作为调车使用，处于随时整备待命状态，其所配备的大容量动力电池和牵引***，可以作为三动力机车的备品备件替换使用。
车组内机车的主要配置：
三动力机车—外走廊车体、柴油机，柴油机辅助设备，受流***，变压器，一组模块化动力电池包(动力电池与外挂动力电池车上的多组动力电池可以整体互换)，电阻制动装置，变流装置，电池辅助设备，司机室，卫生间，微机控制***，带牵引和基础制动装置的转向架，空气制动***等。
外挂动力电池车—箱式车体、多组模块化动力电池包(单组与三动力机车 动力电池实现互换)，逆变装置，带牵引和空气制动***的转向架等。
如图2所示，所述三动力机车和外挂动力电池车的连接方式为可扩展直流总线牵引拓扑结构。所述三动力机车包括受电弓、变压器、柴油发电机组、主断路器、整流器、蓄电池E1、逆变器D1-D6和电机M1-M6，所述受电弓通过主断路器与变压器的1端连接，所述变压器的2端连接到地，所述变压器的3端通过开关K1与整流器的1端连接，所述柴油发电机组通过开关K2与整流器的2端连接，所述整流器的3端、开关K3的一端、逆变器D1的1端、逆变器D2的1端、逆变器D3的1端、逆变器D4的1端、逆变器D5的1端、逆变器D6的1端均连接到直流总线，所述整流器的4端、开关K4的一端、逆变器D1的2端、逆变器D2的2端、逆变器D3的2端、逆变器D4的2端、逆变器D5的2端、逆变器D6的2端均连接到直流总线，所述开关K3的另一端和开关K4的另一端均连接蓄电池E1，所述逆变器D1的3端连接电机M1，所述逆变器D2的3端连接电机M2，所述逆变器D3的3端连接电机M3，所述逆变器D4的3端连接电机M4，所述逆变器D5的3端连接电机M5，所述逆变器D6的3端连接电机M6。所述外挂动力电池车包括蓄电池E2、逆变器D7-D10和电机M7-M10，所述蓄电池E2的一端通过开关K5分别与直流总线、逆变器E7的1端、逆变器E8的1端、逆变器E9的1端和逆变器E10的1端连接，所述蓄电池E2的另一端通过开关K6分别与直流总线、逆变器E7的2端、逆变器E8的2端、逆变器E9的2端和逆变器E10的2端连接，所述逆变器D7的3端连接电机M7，所述逆变器D8的3端连接电机M8，所述逆变器D9的3端连接电机M9，所述逆变器D10的3端连接电机M10。该拓扑图特点为三动力车自身实现三动力源的牵引传动拓扑。其直流总线也是三动力车自身的对外物理接口。电池车直流总线为电池单动力源牵引传动拓扑。其直流 总线也是电视车自身的对外物理接口。两个车的直流总线可以进行并联，实现直流总的拓展。
本发明具有三种动力源的机车组，头车可以解编作为调车机车和干线牵引单独使用，可以根据需要重联更多中间动力电池实现大功率用电的纯电池干线牵引和救援场合，及需要大牵引力和制动力的干线牵引和救援场合，兼顾调车和大坡道和隧道内的救援功能。
本发明中的动力电池车，仅配置空气制动***、牵引***、动力电池等基本车载设备，不具备风源***，司机室等设备，以实现所需功能，简化整体配置和成本，其控制指令来自头车。
本发明中的三动力机车，能实现三种动力源牵引，根据需要选择动力源，同时能过通过其可扩展直流总线获得其他车辆上提供的电能，也能给动力电池车上的电池充电。能通过控制重联将牵引制动命令传输给动力电池车。
本发明中的可扩展的牵引拓扑结构，直流总线为机车物理对外接口，可以并联多个动力电池车动力电池直流总线。
本发明为一台三动力机车及1台或以上带牵引和制动功能的动力电池车构成三动力机车组。
三动力机车除了具有基本的机车配置和功能外，具有受电弓、动力电池、柴油机三种动力源及其辅助***。
动力电池车除了具有基本的车辆配置如车体结构、走形部、空气制动***外，其特点在于车载动力电池和对外电气接口，同时可选配备牵引传动***，以实现牵引功能。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明 的保护范围之内。
Claims (8)
- 一种带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，包括三动力机车和与三动力机车连接的至少一台外挂动力电池车，所述外挂动力电池车可按需配备和重联，所述三动力机车具有受电弓、动力电池和柴油机三种动力源。
- 根据权利要求1所述的带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，所述外挂动力电池车自带牵引逆变***和牵引电机，所述牵引逆变***和牵引电机的控制信号由三动力机车重联提供，通过增加4-6根牵引驱动轴，提供额外的牵引力，满足大坡道条件下大负载列车的起动和牵引需求。
- 根据权利要求1所述的带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，所述外挂动力电池车自带列车制动***，通过增加4-6根制动轴，在被救援列车制动***失效的情况下，提供额外的制动力，能够满足大坡道条件下大负载列车的行车安全和坡道停车需求。
- 根据权利要求1所述的带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，所述三动力机车和外挂动力电池车的连接方式为可扩展直流总线牵引拓扑结构。
- 根据权利要求1所述的带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，所述三动力机车包括受电弓、变压器、柴油发电机组、主断路器、整流器、蓄电池E1、逆变器D1-D6和电机M1-M6，所述受电弓通过主断路器与变压器的1端连接，所述变压器的2端连接到地，所述变压器的3端通过开关K1与整流器的1端连接，所述柴油发电机组通过开关K2与整流器的2端连接，所述整流器的3端、开关K3的一端、逆变器D1的1端、逆变器D2的1端、逆变器D3的1端、逆变器D4的1端、逆变器D5的1端、逆变器D6的1 端均连接到直流总线，所述整流器的4端、开关K4的一端、逆变器D1的2端、逆变器D2的2端、逆变器D3的2端、逆变器D4的2端、逆变器D5的2端、逆变器D6的2端均连接到直流总线，所述开关K3的另一端和开关K4的另一端均连接蓄电池E1，所述逆变器D1的3端连接电机M1，所述逆变器D2的3端连接电机M2，所述逆变器D3的3端连接电机M3，所述逆变器D4的3端连接电机M4，所述逆变器D5的3端连接电机M5，所述逆变器D6的3端连接电机M6。
- 根据权利要求5所述的带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，所述蓄电池E1为小容量动力电池。
- 根据权利要求5所述的带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，所述外挂动力电池车包括蓄电池E2、逆变器D7-D10和电机M7-M10，所述蓄电池E2的一端通过开关K5分别与直流总线、逆变器E7的1端、逆变器E8的1端、逆变器E9的1端和逆变器E10的1端连接，所述蓄电池E2的另一端通过开关K6分别与直流总线、逆变器E7的2端、逆变器E8的2端、逆变器E9的2端和逆变器E10的2端连接，所述逆变器D7的3端连接电机M7，所述逆变器D8的3端连接电机M8，所述逆变器D9的3端连接电机M9，所述逆变器D10的3端连接电机M10。
- 根据权利要求7所述的带动力电池车的三动力机车组及可扩展牵引拓扑结构，其特征在于，所述蓄电池E2为大容量动力电池。
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