CN109927574A - A kind of urban rail car main circuit - Google Patents

A kind of urban rail car main circuit Download PDF

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Publication number
CN109927574A
CN109927574A CN201910177044.4A CN201910177044A CN109927574A CN 109927574 A CN109927574 A CN 109927574A CN 201910177044 A CN201910177044 A CN 201910177044A CN 109927574 A CN109927574 A CN 109927574A
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CN
China
Prior art keywords
connect
main circuit
urban rail
rail car
negative pole
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Pending
Application number
CN201910177044.4A
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Chinese (zh)
Inventor
汪学松
安旭梅
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Guangzhou Electrical Locomotive Co Ltd
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Guangzhou Electrical Locomotive Co Ltd
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Priority to CN201910177044.4A priority Critical patent/CN109927574A/en
Publication of CN109927574A publication Critical patent/CN109927574A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A kind of urban rail car main circuit, including positive terminal, negative pole end and several traction convertors being connected to motor, pantograph is powered by pantograph terminal box to traction convertor;The traction convertor includes inverter circuit, and positive terminal is connect after passing sequentially through fuse, contactor and inductance with the anode of inverter circuit, and the cathode of inverter circuit is connect with negative pole end;The negative pole end connect with earthing or grounding means and passes through rail return current to power supply station, and the car body and earthing or grounding means of urban rail car are grounded protection by being grounded connection.High-voltaghe compartment is eliminated, external equipment is reduced, is reduced costs, circuit integrally reduces tie point, reduces failure rate, improves the reliability of product.

Description

A kind of urban rail car main circuit
Technical field
The present invention relates to tramcar, especially a kind of urban rail car main circuit.
Background technique
Municipal rail train main circuit system is mainly used for train traction and electric braking, including current collection device (pantograph), high pressure Case, arrester, traction convertor, traction electric machine, earthing or grounding means, power cable etc..Electric current flows through pantograph and correlation when traction Equipment flows through rail return current to power supply station finally by earthing or grounding means.It is required according to different traction control, there is frame control (one group of inversion One, system band bogie two motor), the modes such as axis control (motor on one group of inversion system band, one axis).Existing city Need to increase high-voltaghe compartment between rail train main circuit pantograph and traction convertor, box equipment mainly include high-speed circuit breaker and Busbar connector, high-speed circuit breaker are used for main circuit overload protection, and busbar connector is used for positive and negative electrode separated time, and electric current passes through after pantograph Positive bus flows to each current transformer respectively, and in addition arrester also connects in positive bus;All negative bus-bars are for connecing change Device cathode and earthing or grounding means are flowed, for flowing back.Existing municipal rail train main circuit equipment is more, at high cost;And it is intermediate increased Equipment and connection, fault point increase, and reliability is not high.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of urban rail car main circuits, reduce intermediate equipment and tie point, Cost is reduced, installation space is reduced, promotes product reliability.
In order to solve the above technical problems, the technical scheme is that a kind of urban rail car main circuit, including it is positive terminal, negative Extreme and several traction convertors being connected to motor, pantograph are powered by pantograph terminal box to traction convertor;It is described Traction convertor includes inverter circuit, and positive terminal connects after passing sequentially through fuse, contactor and inductance with the positive of inverter circuit It connects, the cathode of inverter circuit is connect with negative pole end;The negative pole end connect with earthing or grounding means and passes through rail return current to power supply station, The car body and earthing or grounding means of urban rail car are grounded protection by being grounded connection.Pass through fusing inside traction convertor of the present invention Device adjunction tentaculum protects main circuit, instead of the breaker inside former high-voltaghe compartment;Main circuit cathode passes through traction convertor It is directly connected to earthing or grounding means, then by rail return current to power supply station, while car body and earthing or grounding means are real by ground line connection Existing ground protection.High-voltaghe compartment is eliminated, external equipment is reduced, is reduced costs, circuit integrally reduces tie point, reduces event Barrier rate improves the reliability of product.
As an improvement, the positive terminal is connect with arrester.
As an improvement, the main circuit further includes DC/DC copped wave module, external energy storage device passes through DC/DC copped wave module It powers to main circuit.
As an improvement, being equipped with Support Capacitor between the positive terminal and negative pole end, the anode of Support Capacitor is defeated with inductance Outlet connection, the cathode of Support Capacitor are connect with negative pole end.
As an improvement, setting between the positive terminal and negative pole end, there are two series resistance, two series resistances and support electricity Hold in parallel.
As an improvement, the inverter circuit is formed by four groups of IGBT modules in parallel, every group of IGBT component is mutually gone here and there by two The IGBT device of connection forms, and is connect by resistance with negative pole end between two IGBT devices of first group of IGBT component, excess-three Group IGBT component is connect with three terminals of motor respectively.
As an improvement, one voltage sensor of a resistor coupled in parallel in two series resistances, the anode of inverter circuit is defeated Outlet is equipped with a current sensor, and the resistance connecting with IGBT component is connect with a current sensor, and three tunnels of motor are defeated Enter end and connects a current sensor.
As an improvement, the urban rail car is 70% low-floor tramcar.
As an improvement, the voltage of main circuit positive terminal is DC 750V.
The beneficial effect of the invention compared with the existing technology is:
Main circuit is protected by fuse adjunction tentaculum inside traction convertor of the present invention, inside former high-voltaghe compartment Breaker;Main circuit cathode is directly connected to earthing or grounding means by traction convertor, then by rail return current to power supply station, simultaneously Car body and earthing or grounding means are connected by ground line is grounded protection.High-voltaghe compartment is eliminated, reduces external equipment, reduces into This, circuit integrally reduces tie point, reduces failure rate, improves the reliability of product.
Detailed description of the invention
Fig. 1 is main circuit topology figure.
Fig. 2 is main circuit diagram.
Specific embodiment
The invention is further explained in the following combination with the attached drawings of the specification.
As shown in Figure 1, a kind of urban rail car main circuit, the present embodiment is said with the main circuit of 70% low-floor tramcar It is bright.Urban rail car includes a connection motor-car and section trailer, the main circuit include positive terminal, negative pole end, be located in trailer by electricity Bow terminal box and the traction convertor being located in motor-car, the traction convertor are connected to motor, and pantograph is connect by pantograph Wire box is powered to traction convertor, i.e., pantograph is connected by the positive terminal of pantograph terminal box and main circuit, and provides 750V DC voltage.
Arrester and socket are additionally provided in trailer, pantograph terminal box lead-out wire is connect with arrester Rz and socket.Trailer The corresponding earthing or grounding means connection of car body.
As shown in Fig. 2, the traction convertor in first segment motor-car include inverter circuit, fuse FU1, contactor K11 and Inductance L1, positive terminal are connect after passing sequentially through fuse FU1, contactor K11 and inductance L1 with the anode of inverter circuit, inversion electricity The cathode on road is connect with negative pole end.The negative pole end connect with earthing or grounding means and passes through rail return current to power supply station, urban rail car Car body and earthing or grounding means are connected by ground line is grounded protection.Support Capacitor is equipped between the positive terminal and negative pole end The anode of C1, Support Capacitor C1 are connect with the output end of inductance L1, and the cathode of Support Capacitor C1 is connect with negative pole end.The anode Series resistance RX11 and RX12 there are two setting between end and negative pole end, two series resistance RX11 and RX12 and Support Capacitor C1 are simultaneously Connection, one voltage sensor VH12 of parallel connection on resistance RX12.The inverter circuit is formed by four groups of IGBT modules in parallel, and every group The IGBT device that IGBT component is serially connected by two forms, i.e., is equipped with eight IGBT device S11-S18 in inverter circuit altogether, Tie point between two IGBT devices S11, S12 of first group of IGBT component is connect by resistance Rz11 with negative pole end, and Connect a current sensor LH15 in the branch, and excess-three group IGBT component is connect with three terminals of motor respectively, machine Three road input terminals meet current sensor LH12, LH14, a LH15.The positive terminal of inverter circuit is equipped with current sensor LH11。
As shown in Fig. 2, the traction convertor in the second section motor-car include inverter circuit, fuse FU2, contactor K21 and Inductance L2, positive terminal are connect after passing sequentially through fuse FU2, contactor K21 and inductance L2 with the anode of inverter circuit, inversion electricity The cathode on road is connect with negative pole end.The negative pole end connect with earthing or grounding means and passes through rail return current to power supply station, urban rail car Car body and earthing or grounding means are connected by ground line is grounded protection.Support Capacitor is equipped between the positive terminal and negative pole end The anode of C2, Support Capacitor C2 are connect with the output end of inductance L2, and the cathode of Support Capacitor C2 is connect with negative pole end.The anode Series resistance RX21 and RX22 there are two setting between end and negative pole end, two series resistance RX21 and RX22 and Support Capacitor C2 are simultaneously Connection, one voltage sensor VH22 of parallel connection on resistance RX22.The inverter circuit is formed by four groups of IGBT modules in parallel, and every group The IGBT device that IGBT component is serially connected by two forms, i.e., is equipped with eight IGBT device S21-S28 in inverter circuit altogether, Tie point between two IGBT devices S21, S22 of first group of IGBT component is connect by resistance Rz21 with negative pole end, and Connect a current sensor LH25 in the branch, and excess-three group IGBT component is connect with three terminals of motor respectively, machine Three road input terminals meet current sensor LH22, LH24, a LH25.The positive terminal of inverter circuit is equipped with current sensor LH21。
As shown in Fig. 2, DC/DC copped wave module is arranged inside traction convertor, external energy storage device is connected, is led for train It can not only be powered, but also can be powered by external energy storage device by contact net when drawing.
Main circuit is protected by fuse adjunction tentaculum inside traction convertor of the present invention, instead of in former high-voltaghe compartment The breaker in face;Main circuit cathode is directly connected to earthing or grounding means by traction convertor, then by rail return current to power supply station, Car body and earthing or grounding means are connected by ground line simultaneously is grounded protection.High-voltaghe compartment is eliminated, external equipment is reduced, is reduced Cost, circuit integrally reduce tie point, reduce failure rate, improve the reliability of product.

Claims (9)

1. a kind of urban rail car main circuit, including positive terminal, negative pole end and several traction convertors being connected to motor, pantograph is logical Pantograph terminal box is crossed to power to traction convertor;It is characterized by: the traction convertor includes inverter circuit, positive terminal according to The secondary anode by after fuse, contactor and inductance with inverter circuit is connect, and the cathode of inverter circuit is connect with negative pole end;Institute It states negative pole end to connect with earthing or grounding means and pass through rail return current to power supply station, the car body and earthing or grounding means of urban rail car pass through ground line Connection is grounded protection.
2. a kind of urban rail car main circuit according to claim 1, it is characterised in that: the positive terminal is connect with arrester.
3. a kind of urban rail car main circuit according to claim 1, it is characterised in that: the main circuit further includes that DC/DC is cut Wave module, external energy storage device are powered by DC/DC copped wave module to main circuit.
4. a kind of urban rail car main circuit according to claim 1, it is characterised in that: set between the positive terminal and negative pole end There is Support Capacitor, the anode of Support Capacitor is connect with the output end of inductance, and the cathode of Support Capacitor is connect with negative pole end.
5. a kind of urban rail car main circuit according to claim 4, it is characterised in that: set between the positive terminal and negative pole end There are two series resistance, two series resistances are in parallel with Support Capacitor.
6. a kind of urban rail car main circuit according to claim 5, it is characterised in that: the inverter circuit is by four groups of IGBT groups Part is formed in parallel, and the IGBT device that every group of IGBT component is serially connected by two forms, two IGBT of first group of IGBT component It is connect by resistance with negative pole end between device, excess-three group IGBT component is connect with three terminals of motor respectively.
7. a kind of urban rail car main circuit according to claim 6, it is characterised in that: a resistance in two series resistances The cathode output end of a voltage sensor in parallel, inverter circuit is equipped with a current sensor, the electricity connecting with IGBT component Resistance is connect with a current sensor, and three road input terminals of motor connect a current sensor.
8. a kind of urban rail car main circuit according to claim 1, it is characterised in that: the urban rail car is that 70% low-floor has Rail electric car.
9. a kind of urban rail car main circuit according to claim 1, it is characterised in that: the voltage of main circuit positive terminal is DC 750V。
CN201910177044.4A 2019-03-08 2019-03-08 A kind of urban rail car main circuit Pending CN109927574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910177044.4A CN109927574A (en) 2019-03-08 2019-03-08 A kind of urban rail car main circuit

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Application Number Priority Date Filing Date Title
CN201910177044.4A CN109927574A (en) 2019-03-08 2019-03-08 A kind of urban rail car main circuit

Publications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110774944A (en) * 2019-11-07 2020-02-11 西南交通大学 Third rail independent grounding system suitable for high-speed train
CN110949157A (en) * 2019-12-27 2020-04-03 成都图翎数控科技有限公司 Charging device, system and method for traction locomotive
CN112319317A (en) * 2020-10-30 2021-02-05 中车大连电力牵引研发中心有限公司 Topological structure of high-voltage system of air rail vehicle
CN113690639A (en) * 2020-05-19 2021-11-23 中车唐山机车车辆有限公司 Rail train's ground system and rail train

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CN104765337A (en) * 2015-02-05 2015-07-08 青岛四方车辆研究所有限公司 Train-set traction control system
CN107128183A (en) * 2017-05-22 2017-09-05 中国铁道科学研究院 A kind of electric EMU is met an urgent need tractive power supply system

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CH486141A (en) * 1968-12-23 1970-02-15 Zellweger Uster Ag Circuit arrangement for protecting static inverters against overvoltages in ripple control systems
US20120222910A1 (en) * 2011-03-04 2012-09-06 Honda Motor Co., Ltd. Electric vehicle
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110774944A (en) * 2019-11-07 2020-02-11 西南交通大学 Third rail independent grounding system suitable for high-speed train
CN110949157A (en) * 2019-12-27 2020-04-03 成都图翎数控科技有限公司 Charging device, system and method for traction locomotive
CN110949157B (en) * 2019-12-27 2021-06-29 成都图翎数控科技有限公司 Charging device, system and method for traction locomotive
CN113690639A (en) * 2020-05-19 2021-11-23 中车唐山机车车辆有限公司 Rail train's ground system and rail train
CN113690639B (en) * 2020-05-19 2022-09-23 中车唐山机车车辆有限公司 Rail train's grounding system and rail train
CN112319317A (en) * 2020-10-30 2021-02-05 中车大连电力牵引研发中心有限公司 Topological structure of high-voltage system of air rail vehicle

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Application publication date: 20190625

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