CN105971798A - Circuit for achieving variable frequency starting of alternating current internal combustion locomotive diesel engine based on four-quadrant converter - Google Patents

Circuit for achieving variable frequency starting of alternating current internal combustion locomotive diesel engine based on four-quadrant converter Download PDF

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Publication number
CN105971798A
CN105971798A CN201610631500.4A CN201610631500A CN105971798A CN 105971798 A CN105971798 A CN 105971798A CN 201610631500 A CN201610631500 A CN 201610631500A CN 105971798 A CN105971798 A CN 105971798A
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CN
China
Prior art keywords
current transformer
diesel engine
main generator
quadrant convertor
variable frequency
Prior art date
Application number
CN201610631500.4A
Other languages
Chinese (zh)
Inventor
蔡红霞
吴宏军
芮孟寨
陈诚
陈志杰
束昊昱
曹海华
柴永泉
黄敬云
Original Assignee
中车戚墅堰机车有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中车戚墅堰机车有限公司 filed Critical 中车戚墅堰机车有限公司
Priority to CN201610631500.4A priority Critical patent/CN105971798A/en
Publication of CN105971798A publication Critical patent/CN105971798A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/38Self-excitation by current derived from rectification of both output voltage and output current of generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • F02N2011/0881Components of the circuit not provided for by previous groups

Abstract

The invention relates to the technical field of internal combustion locomotive electric drive systems, in particular to a circuit for achieving variable frequency starting of an alternating current internal combustion locomotive diesel engine based on a four-quadrant converter. The four-quadrant converter rectifies and outputs a three-phase alternating current sent by a main generator to a middle direct current link and inverts and outputs the voltage of the middle direct current link to the main generator for starting a machine; three paths of chopping bridge arms in each traction converter module of the four-quadrant converter drives traction motors to work, the fourth chopping bridge arm of the 2-3-6-# traction converter module adjusts voltage and current output to charge a power battery, and the fourth chopping bridge arm of the 1-4-5-# traction converter module adjusts power consumption to a brake resistor; a smoothing reactor, a pre-charging resistor and a contactor are arranged among the power battery of the four-quadrant converter and the traction converter modules. A start conversion switch CTS, a high-power contactor and other conversion equipment are not needed, and high-voltage machine starting through the power battery is more rapid and easier to conduct.

Description

Exchange diesel engine of diesel locomotive variable frequency starting circuit is realized based on four quadrant convertor
Technical field
The present invention relates to diesel locomotive electric drive system technical field, especially a kind of based on four quadrant convertor realization exchange diesel engine of diesel locomotive variable frequency starting circuit.
Background technology
Diesel engine of diesel locomotive opens machine mode substantially has electric notor to start, air motor starts, inverter variable frequency starting three kinds.
Electric notor starts, and i.e. utilization controls accumulator 74V or 110V DC driven direct current starts motor running, drives diesel engine to rotate by gear-box or big disk, until diesel engine speed reaches ignition rotating speed, completes the startup of diesel engine.This mode is simple, but mechanical link is more, and motor is short for service life, and the requirement to controlling accumulator is higher, has been not suitable for the developing direction of the major-minor integration of AC drive locomotive.
Air motor starts, and i.e. utilizes compressed air-driven air motor to operate, and drives diesel engine to rotate by drive mechanism, until diesel engine speed reaches ignition rotating speed, completes the startup of diesel engine.This mode needs compressed air as power, when total reservoir insufficient pressure, needs first to use the work of direct current air compressor machine to supplement compressed air, poor real, mechanical link is more, and motor and reservoir volume are big, are also not suitable for the developing direction of the major-minor integration of AC drive locomotive.
Inverter variable frequency starting, i.e. open the utilization of machine stage and 74V or the 110V DC voltage offer excitation of accumulator is provided, control battery tension is loaded into intermediate DC link simultaneously, three-phase alternating current is exported by drag current transformer module, it is loaded into main generator outfan, now main generator does motor use, drag current transformer module frequency conversion voltage adjusting coordinates excitation controller, driving main generator rotates, until diesel engine speed reaches ignition rotating speed, disconnect the control of drag current transformer module again, now main generator does electromotor use, this mode saves the frame for movement of complexity, volume-diminished, meet the developing direction of the major-minor integration of AC drive locomotive, but need to increase and start other equipment such as permutator CTS and high-power catalyst, utilize control accumulator to start voltage relatively low simultaneously, it is difficult to start.
Summary of the invention
In order to overcome the deficiency of existing technology, the invention provides a kind of circuit realizing exchange diesel engine of diesel locomotive variable frequency starting based on four quadrant convertor.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of based on four quadrant convertor realization exchange diesel engine of diesel locomotive variable frequency starting circuit, including main generator, excitation control loop, main variable flow cabinet, electrokinetic cell and load equipment, excitation control loop comprises Automatic Excitation Controller, exciting transformer and controls accumulator, including four quadrant convertor, several drag current transformer modules and auxiliary current transformer module in main variable flow cabinet, load equipment includes several traction electric machines, one group of braking resistor and auxiliary transformer.
According to another embodiment of the invention, farther include, described main generator connects catalyst K1 one end, the K1 other end connects four quadrant convertor and exciting transformer, exciting transformer connects Automatic Excitation Controller, another input of Automatic Excitation Controller connects control accumulator, and the outfan of Automatic Excitation Controller connects the excitation input end of main generator.
According to another embodiment of the invention, farther include, the three-phase alternating current electric rectification that main generator is sent by described four quadrant convertor exports intermediate DC link, for drag current transformer module and auxiliary current transformer module work, DC link voltage inversion can be exported to main generator for opening machine by four quadrant convertor simultaneously.
According to another embodiment of the invention, farther include, in described drag current transformer module, 3 tunnel copped wave brachium pontis drive traction electric machine work, 4th copped wave brachium pontis regulation voltage and current of 2#, 3#, 6# position drag current transformer module exports to power battery charging, in the 4th copped wave brachium pontis regulation power consumption of 1#, 4#, 5# position drag current transformer module to braking resistor;Smoothing reactor L1, pre-charge resistance R1 and catalyst K2, K3, K4 it is provided with between described electrokinetic cell and drag current transformer module.
The invention has the beneficial effects as follows, the machine that the opens mode of this circuit realiration saves the frame for movement of complexity, simplify complexity opens dynamo-electric road, need not increase and start the conversion equipment such as permutator CTS and high-power catalyst, reduce and open machine auxiliary facility, it is easy to global optimization space layout, uses the high voltage of electrokinetic cell to open machine simultaneously and will also comply with the developing direction of the major-minor integration of AC drive locomotive more rapidly with easily.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the circuit theory diagrams of the present invention.
In figure 1, main generator, 2, excitation control loop, 21, Automatic Excitation Controller, 22, exciting transformer, 23, control accumulator, 3, main variable flow cabinet, 31, four quadrant convertor, 32, drag current transformer module, 33, auxiliary current transformer module, 4, electrokinetic cell, 5, load equipment, 51, traction electric machine, 52, braking resistor, 53, auxiliary transformer.
Detailed description of the invention
If Fig. 1 is the structural representation of the present invention, a kind of based on four quadrant convertor realization exchange diesel engine of diesel locomotive variable frequency starting circuit, including main generator 1, excitation control loop 2, main variable flow cabinet 3, electrokinetic cell 4 and load equipment 5, excitation control loop 2 comprises Automatic Excitation Controller 21, exciting transformer 22 and controls accumulator 23, including four quadrant convertor 31, several drag current transformer modules 32 and auxiliary current transformer module 33 in main variable flow cabinet 3, load equipment 5 includes 51, one group of braking resistor 52 of several traction electric machines and auxiliary transformer 53.Main generator 1 connects catalyst K1 one end, the K1 other end connects four quadrant convertor 31 and exciting transformer 22, exciting transformer 22 connects Automatic Excitation Controller 21, another input of Automatic Excitation Controller 21 connects control accumulator 23, and the outfan of Automatic Excitation Controller 21 connects the excitation input end of main generator 1.The three-phase alternating current electric rectification that main generator 1 is sent by four quadrant convertor 31 exports intermediate DC link, working for drag current transformer module 32 and auxiliary current transformer module 33, DC link voltage inversion can be exported to main generator 1 for opening machine by four quadrant convertor 31 simultaneously.
In drag current transformer module 32,3 tunnel copped wave brachium pontis drive traction electric machine 51 to work, 4th copped wave brachium pontis regulation voltage and current of 2#, 3#, 6# position drag current transformer module exports to power battery charging, in the 4th copped wave brachium pontis regulation power consumption of 1#, 4#, 5# position drag current transformer module 32 to braking resistor 52;Smoothing reactor L1, pre-charge resistance R1 and catalyst K2, K3, K4 it is provided with between electrokinetic cell 4 and drag current transformer module 32.
Main generator is connected with diesel engine outfan, after diesel engine normally works, main generator output three-phase alternating voltage is driven to provide power source to locomotive, in the present invention, main generator 1 on startup, uses as motor, diesel engine is driven to rotate in turn, until diesel engine arrives ignition rotating speed, complete the startup of diesel engine, be then switched to electromotor operating mode.
Excitation control loop comprises Automatic Excitation Controller 21 and exciting transformer 22 two parts, Automatic Excitation Controller 21 has exchange input and direct current two kinds of power supply modes of input, Automatic Excitation Controller 21 can be according to default main generator output frequency voltage relationship, chop control exciting current, closed loop regulation main generator output voltage, particularly startup stage, according to diesel engine speed, rationally determine excitation size so that accelerating torque is optimal;Opening the machine stage, Automatic Excitation Controller 21 uses locomotive storage batteries 23 to power;When diesel engine opens after machine completes, utilize the three-phase alternating current blood pressure lowering that main generator 1 is exported by exciting transformer 22, for Automatic Excitation Controller 21.
Four quadrant convertor replaces the key that the uncontrollable rectification module of original locomotive use is the present invention.Opening the machine stage, the high voltage of electrokinetic cell 4 is input to intermediate DC link, and DC tache voltage inversion is exported to main generator 1 by four quadrant convertor 31, and frequency conversion drive main generator 1 rotates, control 21 device communications, reasonable computation reverse frequency with automatic magnetic exciting simultaneously;When diesel engine opens after machine completes, and four quadrant convertor 31 will turn into rectification operating mode, the three-phase alternating current that main generator 1 sends, and through four quadrant convertor 31 rectification, output is to DC link.
The present invention is provided with 6 drag current transformer module 32 1#, #2#, 3#, 4#, 5#, 6# and 1 auxiliary current transformer module 7# altogether.The voltage of intermediate DC link, for driving 6 traction electric machine work, is reverse into the three-phase alternating current of needs, drives traction electric machine work by 6 drag current transformer modules 32;4th road and bridge arm chopper regulation voltage of 1#, 4#, 5# inverter simultaneously, exports in braking resistor 52, consumes excess energy or repid discharge;And the 4th road and bridge arm chopper regulation voltage of 2#, 3#, 6# inverter, export and charge to the accumulator of electrokinetic cell 4.
Also have auxiliary current transformer module module 33 7#, the voltage of intermediate DC link is reverse into the three-phase alternating current of needs, drive AuCT 33 to work.
Electrokinetic cell 4 is another power source of hybrid locomotrives, provides the energy when diesel engine does not works to locomotive.When being operated in charge mode, first Guan Bi catalyst K4 and K3, the voltage of drag current transformer module copped wave output demand voltage value, filter through smoothing reactor, precharged resistance current limliting, be pre-charged to electrokinetic cell 4;After charging current reaches initial value, close catalyst K2, carry out quick charge.When being operated in discharge mode, catalyst K2, K3 and K4 close, and drag current transformer module is the most open-minded, and the voltage of electrokinetic cell 4 is directly output to DC link, for load.
The concrete mode of control of circuit of the present invention is as follows:
Guan Bi catalyst K1, closes catalyst K3 and K4, timing closing catalyst K2, and enable Automatic Excitation Controller 21 is operated in and opens machine excitation mode, and four quadrant convertor 31 is operated in inverter mode, coordinates Automatic Excitation Controller 21, drives diesel engine to rotate;
When diesel engine opens after machine completes, enabling Automatic Excitation Controller 21 and be operated in normal mode of operation, four quadrant convertor 31 is operated in rectification mode, completes to open machine process.
The machine that the opens mode of this circuit realiration saves the frame for movement of complexity, simplify complexity opens dynamo-electric road, need not increase and start the conversion equipment such as permutator CTS and high-power catalyst, reduce and open machine auxiliary facility, it is easy to global optimization space layout, the high voltage simultaneously using electrokinetic cell opens machine will also comply with the developing direction of the major-minor integration of AC drive locomotive more rapidly with easily.

Claims (4)

1. one kind realizes exchange diesel engine of diesel locomotive variable frequency starting circuit based on four quadrant convertor, it is characterized in that, including main generator (1), excitation control loop (2), main variable flow cabinet (3), electrokinetic cell (4), and load equipment (5), described excitation control loop (2) comprises Automatic Excitation Controller (21), exciting transformer (22), and control accumulator (23), four quadrant convertor (31) is included in described main variable flow cabinet (3), several drag current transformer modules (32) and auxiliary current transformer module (33), load equipment (5) includes several traction electric machines (51), one group of braking resistor (52) and auxiliary transformer (53).
The most according to claim 1 based on four quadrant convertor realization exchange diesel engine of diesel locomotive variable frequency starting circuit, it is characterized in that, described main generator (1) connects catalyst K1 one end, the K1 other end connects four quadrant convertor (31) and exciting transformer (22), exciting transformer (22) connects Automatic Excitation Controller (21), Automatic Excitation Controller (21) another input connects control accumulator (23), and the outfan of Automatic Excitation Controller (21) connects the excitation input end of main generator (1).
The most according to claim 1 based on four quadrant convertor realization exchange diesel engine of diesel locomotive variable frequency starting circuit, it is characterized in that, the three-phase alternating current electric rectification that main generator (1) sends is exported intermediate DC link by described four quadrant convertor (31), for drag current transformer module (32) and auxiliary current transformer module (33) work, DC link voltage inversion can be exported to main generator (1) for opening machine by four quadrant convertor (31) simultaneously.
The most according to claim 1 based on four quadrant convertor realization exchange diesel engine of diesel locomotive variable frequency starting circuit, it is characterized in that, in described drag current transformer module (32), 3 tunnel copped wave brachium pontis drive traction electric machine (51) work, 4th copped wave brachium pontis regulation voltage and current of 2#, 3#, 6# position drag current transformer module exports to power battery charging, in the 4th copped wave brachium pontis regulation power consumption of 1#, 4#, 5# position drag current transformer module (32) to braking resistor (52);Smoothing reactor L1, pre-charge resistance R1 and catalyst K2, K3, K4 it is provided with between described electrokinetic cell (4) and drag current transformer module (32).
CN201610631500.4A 2016-08-04 2016-08-04 Circuit for achieving variable frequency starting of alternating current internal combustion locomotive diesel engine based on four-quadrant converter CN105971798A (en)

Priority Applications (1)

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CN201610631500.4A CN105971798A (en) 2016-08-04 2016-08-04 Circuit for achieving variable frequency starting of alternating current internal combustion locomotive diesel engine based on four-quadrant converter

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CN201610631500.4A CN105971798A (en) 2016-08-04 2016-08-04 Circuit for achieving variable frequency starting of alternating current internal combustion locomotive diesel engine based on four-quadrant converter
PCT/CN2016/106605 WO2018023896A1 (en) 2016-08-04 2016-11-21 Circuit for achieving variable frequency starting of ac diesel locomotive engine based on four-quadrant converter

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Cited By (3)

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WO2018023896A1 (en) * 2016-08-04 2018-02-08 中车戚墅堰机车有限公司 Circuit for achieving variable frequency starting of ac diesel locomotive engine based on four-quadrant converter
CN107701318A (en) * 2017-08-22 2018-02-16 太原理工大学 Without flywheel diesel generator/electric motor system control method
CN110696845A (en) * 2019-10-23 2020-01-17 中车大连机车车辆有限公司 Hybrid power locomotive, main and auxiliary transmission system and method based on rack control mode

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Publication number Priority date Publication date Assignee Title
WO2018023896A1 (en) * 2016-08-04 2018-02-08 中车戚墅堰机车有限公司 Circuit for achieving variable frequency starting of ac diesel locomotive engine based on four-quadrant converter
CN107701318A (en) * 2017-08-22 2018-02-16 太原理工大学 Without flywheel diesel generator/electric motor system control method
CN110696845A (en) * 2019-10-23 2020-01-17 中车大连机车车辆有限公司 Hybrid power locomotive, main and auxiliary transmission system and method based on rack control mode
CN110696845B (en) * 2019-10-23 2021-03-23 中车大连机车车辆有限公司 Hybrid power locomotive, main and auxiliary transmission system and method based on rack control mode

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Application publication date: 20160928