CN105337489A - DC600V auxiliary power supply device and locomotive - Google Patents
DC600V auxiliary power supply device and locomotive Download PDFInfo
- Publication number
- CN105337489A CN105337489A CN201510789688.0A CN201510789688A CN105337489A CN 105337489 A CN105337489 A CN 105337489A CN 201510789688 A CN201510789688 A CN 201510789688A CN 105337489 A CN105337489 A CN 105337489A
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- Prior art keywords
- bipolar transistor
- insulated gate
- gate bipolar
- bridge inverter
- full bridge
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention provides a DC 600V auxiliary power supply device and a locomotive. The DC600V auxiliary power supply device comprises a first input end, a second input end, a voltage division circuit, first, second, third and fourth DC/DC changing circuits with same structure and a filter circuit, wherein the voltage division circuit is connected between the first input end and the second input end; the output ends of the first, second, third and fourth DC/DC changing circuits are connected sequentially in series. According to the DC600V auxiliary power supply device, the volume and the weight of the device are obviously reduced on the premise of meeting the original power supply function.
Description
Technical field
The present invention relates to electric and electronic technical field, be specially a kind of DC600V auxiliary power supply and locomotive.
Background technology
Locomotive-auxiliary generating process of the prior art is generally: after diesel engine starting, auxiliary generator operates under the drive of diesel engine, auxiliary generator excitation winding circuit is connected by additive excitation contactor, under the control of voltage adjuster, auxiliary generator sends constant 110V direct voltage supply vehicle assistant load, along with locomotive auxiliary power supply system is towards future development that is intelligent and networking, according to the planning of railway general bureau, a new generation's locomotive auxiliary power supply system is: cancel auxiliary generator generating, generated electricity by main generator, then after over commutation, the direct current of DC860V ~ 2600V range is exported to DC600V auxiliary power supply, the direct current of DC600V auxiliary power supply to the above-mentioned scope of input is needed to convert and process, then obtain stable DC600V to power to vehicle assistant load, vehicle assistant load all adopts AuCT to drive, the DC600V that these AuCTs export with DC600V auxiliary power supply is input, export 110V direct voltage to vehicle assistant load as ventilation blower, cooling fan, air compressor machines etc. provide working power, concrete AuCT can comprise ventilation blower frequency converter, cooling fan frequency converter, air compressor frequency converter, a main excitation chopper, battery charger, AC220V vehicle power etc.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of DC600V auxiliary power supply and locomotive.
Technological means of the present invention is as follows:
A kind of DC600V auxiliary power supply, comprising:
First input end and the second input;
Be connected to the bleeder circuit between first input end and the second input; Described bleeder circuit is used for carrying out voltage division processing to the input voltage between first input end and the second input, obtains the first equal voltage of voltage, the second voltage, tertiary voltage and the 4th voltage;
A DC/DC translation circuit, the 2nd DC/DC translation circuit, the 3rd DC/DC translation circuit and the 4th DC/DC translation circuit that four circuit structures are identical; A described DC/DC translation circuit is used for converting described first voltage; Described 2nd DC/DC translation circuit is used for converting described second voltage; Described 3rd DC/DC translation circuit is used for converting described tertiary voltage; Described 4th DC/DC translation circuit is used for converting described 4th voltage; The output of a described DC/DC translation circuit, the 2nd DC/DC translation circuit, the 3rd DC/DC translation circuit and the 4th DC/DC translation circuit is sequentially connected in series;
Filter circuit; A described DC/DC translation circuit, the 2nd DC/DC translation circuit, the 3rd DC/DC translation circuit and the 4th DC/DC translation circuit all have the first output and the second output; First output and second output of the 4th DC/DC translation circuit of a described DC/DC translation circuit are connected described filter circuit two input respectively; Two outputs of described filter circuit are as the output of described DC600V auxiliary power supply;
Further, described bleeder circuit comprises the electric capacity C1, electric capacity C2, electric capacity C3 and the electric capacity C4 that connect successively; Described electric capacity C1 two ends are parallel with resistance R1; Described electric capacity C2 two ends are parallel with resistance R2; Described electric capacity C3 two ends are parallel with resistance R3; Described electric capacity C4 two ends are parallel with resistance R4;
Further,
A described DC/DC translation circuit comprises the first full bridge inverter, transformer T1 and the first full-wave rectifying circuit; Described first full bridge inverter comprises insulated gate bipolar transistor A1-1, insulated gate bipolar transistor A1-2, insulated gate bipolar transistor A1-3 and insulated gate bipolar transistor A1-4; Described insulated gate bipolar transistor A1-1 is connected with insulated gate bipolar transistor A1-2 and forms a brachium pontis of described first full bridge inverter, and described insulated gate bipolar transistor A1-3 is connected with insulated gate bipolar transistor A1-4 and forms another brachium pontis of described first full bridge inverter; The input of described first full bridge inverter is in parallel with described electric capacity C1; Described transformer T1 has primary coil and secondary coil; The secondary coil of described transformer T1 has centre tap; The output of described first full bridge inverter connects the primary coil two ends of described transformer T1; First full-wave rectifying circuit comprises rectifier diode D1 and rectifier diode D2; The secondary coil two ends of described transformer T1 connect the anode of rectifier diode D1 and the anode of rectifier diode D2 respectively; The negative electrode of described rectifier diode D1 is connected with rectifier diode D2 negative electrode, and as the first output of a described DC/DC translation circuit; The centre tap of the secondary coil of described transformer T1 is as the second output of a described DC/DC translation circuit;
Described 2nd DC/DC translation circuit comprises the second full bridge inverter, transformer T2 and the second full-wave rectifying circuit; Described second full bridge inverter comprises insulated gate bipolar transistor A2-1, insulated gate bipolar transistor A2-2, insulated gate bipolar transistor A2-3 and insulated gate bipolar transistor A2-4; Described insulated gate bipolar transistor A2-1 is connected with insulated gate bipolar transistor A2-2 and forms a brachium pontis of described second full bridge inverter, and described insulated gate bipolar transistor A2-3 is connected with insulated gate bipolar transistor A2-4 and forms another brachium pontis of described second full bridge inverter; The input of described second full bridge inverter is in parallel with described electric capacity C2; Described transformer T2 has primary coil and secondary coil; The secondary coil of described transformer T2 has centre tap; The output of described second full bridge inverter connects the primary coil two ends of described transformer T2; Second full-wave rectifying circuit comprises rectifier diode D3 and rectifier diode D4; The secondary coil two ends of described transformer T2 connect the anode of rectifier diode D3 and the anode of rectifier diode D4 respectively; The negative electrode of described rectifier diode D3 is connected with rectifier diode D4 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T1 as the first output of described 2nd DC/DC translation circuit; The centre tap of the secondary coil of described transformer T2 is as the second output of described 2nd DC/DC translation circuit;
Described 3rd DC/DC translation circuit comprises the 3rd full bridge inverter, transformer T3 and the 3rd full-wave rectifying circuit; Described 3rd full bridge inverter comprises insulated gate bipolar transistor A3-1, insulated gate bipolar transistor A3-2, insulated gate bipolar transistor A3-3 and insulated gate bipolar transistor A3-4; Described insulated gate bipolar transistor A3-1 is connected with insulated gate bipolar transistor A3-2 and forms a brachium pontis of described 3rd full bridge inverter, and described insulated gate bipolar transistor A3-3 is connected with insulated gate bipolar transistor A3-4 and forms another brachium pontis of described 3rd full bridge inverter; The input of described 3rd full bridge inverter is in parallel with described electric capacity C3; Described transformer T3 has primary coil and secondary coil; The secondary coil of described transformer T3 has centre tap; The output of described 3rd full bridge inverter connects the primary coil two ends of described transformer T3; 3rd full-wave rectifying circuit comprises rectifier diode D5 and rectifier diode D6; The secondary coil two ends of described transformer T3 connect the anode of rectifier diode D5 and the anode of rectifier diode D6 respectively; The negative electrode of described rectifier diode D5 is connected with rectifier diode D6 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T2 as the first output of described 3rd DC/DC translation circuit; The centre tap of the secondary coil of described transformer T3 is as the second output of described 3rd DC/DC translation circuit;
Described 4th DC/DC translation circuit comprises the 4th full bridge inverter, transformer T4 and the 4th full-wave rectifying circuit; Described 4th full bridge inverter comprises insulated gate bipolar transistor A4-1, insulated gate bipolar transistor A4-2, insulated gate bipolar transistor A4-3 and insulated gate bipolar transistor A4-4; Described insulated gate bipolar transistor A4-1 is connected with insulated gate bipolar transistor A4-2 and forms a brachium pontis of described 4th full bridge inverter, and described insulated gate bipolar transistor A4-3 is connected with insulated gate bipolar transistor A4-4 and forms another brachium pontis of described 4th full bridge inverter; The input of described 4th full bridge inverter is in parallel with described electric capacity C4; Described transformer T4 has primary coil and secondary coil; The secondary coil of described transformer T4 has centre tap; The output of described 4th full bridge inverter connects the primary coil two ends of described transformer T4; 4th full-wave rectifying circuit comprises rectifier diode D7 and rectifier diode D8; The secondary coil two ends of described transformer T4 connect the anode of rectifier diode D7 and the anode of rectifier diode D8 respectively; The negative electrode of described rectifier diode D7 is connected with rectifier diode D8 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T3 as the first output of described 4th DC/DC translation circuit; The centre tap of the secondary coil of described transformer T4 is as the second output of described 4th DC/DC translation circuit;
Further, described filter circuit is the LC filter circuit that inductance L 1 and electric capacity C5 are formed; Described DC600V auxiliary power supply also comprises resistance RG1 and the resistance RG2 of series connection mutually; The series arm that resistance RG1 and resistance RG2 is formed is in parallel with described electric capacity C5; Resistance RG1 is connected the earth with the serial connection point of resistance RG2;
Further, described DC600V auxiliary power supply also comprises the output that one end connects described DC600V auxiliary power supply, and the other end connects the ground detection device of the earth; Described DC600V auxiliary power supply also comprises the fuse FS1 be serially connected between first input end and bleeder circuit;
In addition, described DC600V auxiliary power supply also comprises the driver element be connected with the 4th full bridge inverter with the first full bridge inverter, the second full bridge inverter, the 3rd full bridge inverter, and for controlling the control unit of each insulated gate bipolar transistor turn-on and turn-off via driver element according to predetermined switch periods;
Further, the input voltage range of described DC600V auxiliary power supply is direct current 860 ~ 2600V; The output voltage of described DC600V auxiliary power supply is direct current 600V;
Further, the switching frequency >=5kHz of each insulated gate bipolar transistor of the first full bridge inverter, the second full bridge inverter, the 3rd full bridge inverter and the 4th full bridge inverter.
A kind of locomotive, comprises the DC600V auxiliary power supply described in above-mentioned any one; Described DC600V auxiliary power supply is connected through the main generator of rectifying device with described locomotive.
Owing to have employed technique scheme, DC600V auxiliary power supply provided by the invention and locomotive, described DC600V auxiliary power supply, under the prerequisite meeting original function of supplying power, significantly reduces the volume and weight of device; Adopt the technical scheme of resistive-capacitive voltage divider → DC/AC inversion → transformer isolation → AC/DC rectification → smothing filtering, (output of four DC/DC translation circuits is connected successively to utilize four units in series technology, each DC/DC translation circuit only need carry out conversion process to the voltage obtained after resistive-capacitive voltage divider), disperse the potential risk that IGBT device is withstand voltage, substantially increase resistance to compression level and application reliability, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of DC600V auxiliary power supply of the present invention;
Fig. 2 is the structured flowchart of control unit of the present invention, driver element and the first full bridge inverter, the second full bridge inverter, the 3rd full bridge inverter and the 4th full bridge inverter;
Fig. 3 is the connection diagram between DC600V auxiliary power supply of the present invention and the main generator of locomotive.
In figure: 1, first input end, the 2, second input, 3, bleeder circuit, the 4, the one DC/DC translation circuit, the 5, the 2nd DC/DC translation circuit, the 6, the 3rd DC/DC translation circuit, the 7, the 4th DC/DC translation circuit, 8, filter circuit.
Embodiment
A kind of DC600V auxiliary power supply as depicted in figs. 1 and 2, comprising: first input end 1 and the second input 2; Be connected to the bleeder circuit 3 between first input end 1 and the second input 2; Described bleeder circuit 3, for carrying out voltage division processing to the input voltage between first input end 1 and the second input 2, obtains the first equal voltage of voltage, the second voltage, tertiary voltage and the 4th voltage; A DC/DC translation circuit 4, the 2nd DC/DC translation circuit 5, the 3rd DC/DC translation circuit 6 and the 4th DC/DC translation circuit 7 that four circuit structures are identical; A described DC/DC translation circuit 4 is for converting described first voltage; Described 2nd DC/DC translation circuit 5 is for converting described second voltage; Described 3rd DC/DC translation circuit 6 is for converting described tertiary voltage; Described 4th DC/DC translation circuit 7 is for converting described 4th voltage; The output of a described DC/DC translation circuit 4, the 2nd DC/DC translation circuit 5, the 3rd DC/DC translation circuit 6 and the 4th DC/DC translation circuit 7 is sequentially connected in series; Filter circuit 8; A described DC/DC translation circuit 4, the 2nd DC/DC translation circuit 5, the 3rd DC/DC translation circuit 6 and the 4th DC/DC translation circuit 7 all have the first output and the second output; First output and second output of the 4th DC/DC translation circuit 7 of a described DC/DC translation circuit 4 are connected described filter circuit 8 liang of inputs respectively; Two outputs of described filter circuit 8 are as the output of described DC600V auxiliary power supply; Further, described bleeder circuit 3 comprises the electric capacity C1, electric capacity C2, electric capacity C3 and the electric capacity C4 that connect successively; Described electric capacity C1 two ends are parallel with resistance R1; Described electric capacity C2 two ends are parallel with resistance R2; Described electric capacity C3 two ends are parallel with resistance R3; Described electric capacity C4 two ends are parallel with resistance R4; Further, a described DC/DC translation circuit 4 comprises the first full bridge inverter, transformer T1 and the first full-wave rectifying circuit; Described first full bridge inverter comprises insulated gate bipolar transistor A1-1, insulated gate bipolar transistor A1-2, insulated gate bipolar transistor A1-3 and insulated gate bipolar transistor A1-4; Described insulated gate bipolar transistor A1-1 is connected with insulated gate bipolar transistor A1-2 and forms a brachium pontis of described first full bridge inverter, and described insulated gate bipolar transistor A1-3 is connected with insulated gate bipolar transistor A1-4 and forms another brachium pontis of described first full bridge inverter; The input of described first full bridge inverter is in parallel with described electric capacity C1; Described transformer T1 has primary coil and secondary coil; The secondary coil of described transformer T1 has centre tap; The output of described first full bridge inverter connects the primary coil two ends of described transformer T1; First full-wave rectifying circuit comprises rectifier diode D1 and rectifier diode D2; The secondary coil two ends of described transformer T1 connect the anode of rectifier diode D1 and the anode of rectifier diode D2 respectively; The negative electrode of described rectifier diode D1 is connected with rectifier diode D2 negative electrode, and as the first output of a described DC/DC translation circuit 4; The centre tap of the secondary coil of described transformer T1 is as the second output of a described DC/DC translation circuit 4; Described 2nd DC/DC translation circuit 5 comprises the second full bridge inverter, transformer T2 and the second full-wave rectifying circuit; Described second full bridge inverter comprises insulated gate bipolar transistor A2-1, insulated gate bipolar transistor A2-2, insulated gate bipolar transistor A2-3 and insulated gate bipolar transistor A2-4; Described insulated gate bipolar transistor A2-1 is connected with insulated gate bipolar transistor A2-2 and forms a brachium pontis of described second full bridge inverter, and described insulated gate bipolar transistor A2-3 is connected with insulated gate bipolar transistor A2-4 and forms another brachium pontis of described second full bridge inverter; The input of described second full bridge inverter is in parallel with described electric capacity C2; Described transformer T2 has primary coil and secondary coil; The secondary coil of described transformer T2 has centre tap; The output of described second full bridge inverter connects the primary coil two ends of described transformer T2; Second full-wave rectifying circuit comprises rectifier diode D3 and rectifier diode D4; The secondary coil two ends of described transformer T2 connect the anode of rectifier diode D3 and the anode of rectifier diode D4 respectively; The negative electrode of described rectifier diode D3 is connected with rectifier diode D4 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T1 as the first output of described 2nd DC/DC translation circuit 5; The centre tap of the secondary coil of described transformer T2 is as the second output of described 2nd DC/DC translation circuit 5; Described 3rd DC/DC translation circuit 6 comprises the 3rd full bridge inverter, transformer T3 and the 3rd full-wave rectifying circuit; Described 3rd full bridge inverter comprises insulated gate bipolar transistor A3-1, insulated gate bipolar transistor A3-2, insulated gate bipolar transistor A3-3 and insulated gate bipolar transistor A3-4; Described insulated gate bipolar transistor A3-1 is connected with insulated gate bipolar transistor A3-2 and forms a brachium pontis of described 3rd full bridge inverter, and described insulated gate bipolar transistor A3-3 is connected with insulated gate bipolar transistor A3-4 and forms another brachium pontis of described 3rd full bridge inverter; The input of described 3rd full bridge inverter is in parallel with described electric capacity C3; Described transformer T3 has primary coil and secondary coil; The secondary coil of described transformer T3 has centre tap; The output of described 3rd full bridge inverter connects the primary coil two ends of described transformer T3; 3rd full-wave rectifying circuit comprises rectifier diode D5 and rectifier diode D6; The secondary coil two ends of described transformer T3 connect the anode of rectifier diode D5 and the anode of rectifier diode D6 respectively; The negative electrode of described rectifier diode D5 is connected with rectifier diode D6 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T2 as the first output of described 3rd DC/DC translation circuit 6; The centre tap of the secondary coil of described transformer T3 is as the second output of described 3rd DC/DC translation circuit 6; Described 4th DC/DC translation circuit 7 comprises the 4th full bridge inverter, transformer T4 and the 4th full-wave rectifying circuit; Described 4th full bridge inverter comprises insulated gate bipolar transistor A4-1, insulated gate bipolar transistor A4-2, insulated gate bipolar transistor A4-3 and insulated gate bipolar transistor A4-4; Described insulated gate bipolar transistor A4-1 is connected with insulated gate bipolar transistor A4-2 and forms a brachium pontis of described 4th full bridge inverter, and described insulated gate bipolar transistor A4-3 is connected with insulated gate bipolar transistor A4-4 and forms another brachium pontis of described 4th full bridge inverter; The input of described 4th full bridge inverter is in parallel with described electric capacity C4; Described transformer T4 has primary coil and secondary coil; The secondary coil of described transformer T4 has centre tap; The output of described 4th full bridge inverter connects the primary coil two ends of described transformer T4; 4th full-wave rectifying circuit comprises rectifier diode D7 and rectifier diode D8; The secondary coil two ends of described transformer T4 connect the anode of rectifier diode D7 and the anode of rectifier diode D8 respectively; The negative electrode of described rectifier diode D7 is connected with rectifier diode D8 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T3 as the first output of described 4th DC/DC translation circuit 7; The centre tap of the secondary coil of described transformer T4 is as the second output of described 4th DC/DC translation circuit 7; Further, described filter circuit 8 is the LC filter circuit 8 that inductance L 1 and electric capacity C5 are formed; Described DC600V auxiliary power supply also comprises resistance RG1 and the resistance RG2 of series connection mutually; The series arm that resistance RG1 and resistance RG2 is formed is in parallel with described electric capacity C5; Resistance RG1 is connected the earth with the serial connection point of resistance RG2; Further, described DC600V auxiliary power supply also comprises the output that one end connects described DC600V auxiliary power supply, and the other end connects the ground detection device of the earth; Described DC600V auxiliary power supply also comprises the fuse FS1 be serially connected between first input end 1 and bleeder circuit 3; In addition, described DC600V auxiliary power supply also comprises the driver element be connected with the 4th full bridge inverter with the first full bridge inverter, the second full bridge inverter, the 3rd full bridge inverter, and for controlling the control unit of each insulated gate bipolar transistor turn-on and turn-off via driver element according to predetermined switch periods; Further, the input voltage range of described DC600V auxiliary power supply is direct current 860 ~ 2600V; The output voltage of described DC600V auxiliary power supply is direct current 600V; Further, the switching frequency >=5kHz of each insulated gate bipolar transistor of the first full bridge inverter, the second full bridge inverter, the 3rd full bridge inverter and the 4th full bridge inverter.
A kind of locomotive as shown in Figure 3, comprises the DC600V auxiliary power supply described in above-mentioned any one; Described DC600V auxiliary power supply is connected through the main generator of rectifying device with described locomotive.
DC600V auxiliary power supply of the present invention is powered to vehicle assistant load through locomotive auxiliary converter, the direct current 600V that described locomotive auxiliary converter exports with DC600V auxiliary power supply is input, export 110V direct voltage to vehicle assistant load, described vehicle assistant load comprises ventilation blower, cooling fan, air compressor machine etc.
Fig. 1 shows the main circuit topological structure of DC600V auxiliary power supply of the present invention; Wherein, insulated gate bipolar transistor A1-1, insulated gate bipolar transistor A1-2, insulated gate bipolar transistor A1-3 and insulated gate bipolar transistor A1-4 form the first full bridge inverter, particularly: the collector electrode of the emitter connection insulated gate bipolar transistor A1-2 of insulated gate bipolar transistor A1-1 forms a brachium pontis, the collector electrode of the emitter connection insulated gate bipolar transistor A1-4 of insulated gate bipolar transistor A1-3 forms another brachium pontis; The collector electrode of insulated gate bipolar transistor A1-1 connects the collector electrode of insulated gate bipolar transistor A1-3, as an input of the first full bridge inverter, the emitter of insulated gate bipolar transistor A1-2 connects the emitter of insulated gate bipolar transistor A1-4, as another input of the first full bridge inverter, the mid point of two brachium pontis is as the output of the first full bridge inverter.
Fig. 1 shows the main circuit topological structure of DC600V auxiliary power supply of the present invention; Wherein, insulated gate bipolar transistor A2-1, insulated gate bipolar transistor A2-2, insulated gate bipolar transistor A2-3 and insulated gate bipolar transistor A2-4 form the second full bridge inverter, particularly: the collector electrode of the emitter connection insulated gate bipolar transistor A2-2 of insulated gate bipolar transistor A2-1 forms a brachium pontis, the collector electrode of the emitter connection insulated gate bipolar transistor A2-4 of insulated gate bipolar transistor A2-3 forms another brachium pontis; The collector electrode of insulated gate bipolar transistor A2-1 connects the collector electrode of insulated gate bipolar transistor A2-3, as an input of the second full bridge inverter, the emitter of insulated gate bipolar transistor A2-2 connects the emitter of insulated gate bipolar transistor A2-4, as another input of the second full bridge inverter, the mid point of two brachium pontis is as the output of the second full bridge inverter.
Fig. 1 shows the main circuit topological structure of DC600V auxiliary power supply of the present invention; Wherein, insulated gate bipolar transistor A3-1, insulated gate bipolar transistor A3-2, insulated gate bipolar transistor A3-3 and insulated gate bipolar transistor A3-4 form the 3rd full bridge inverter, particularly: the collector electrode of the emitter connection insulated gate bipolar transistor A3-2 of insulated gate bipolar transistor A3-1 forms a brachium pontis, the collector electrode of the emitter connection insulated gate bipolar transistor A3-4 of insulated gate bipolar transistor A3-3 forms another brachium pontis; The collector electrode of insulated gate bipolar transistor A3-1 connects the collector electrode of insulated gate bipolar transistor A3-3, as an input of the 3rd full bridge inverter, the emitter of insulated gate bipolar transistor A3-2 connects the emitter of insulated gate bipolar transistor A3-4, as another input of the 3rd full bridge inverter, the mid point of two brachium pontis is as the output of the 3rd full bridge inverter.
Fig. 1 shows the main circuit topological structure of DC600V auxiliary power supply of the present invention; Wherein, insulated gate bipolar transistor A4-1, insulated gate bipolar transistor A4-2, insulated gate bipolar transistor A4-3 and insulated gate bipolar transistor A4-4 form the 4th full bridge inverter, particularly: the collector electrode of the emitter connection insulated gate bipolar transistor A4-2 of insulated gate bipolar transistor A4-1 forms a brachium pontis, the collector electrode of the emitter connection insulated gate bipolar transistor A4-4 of insulated gate bipolar transistor A4-3 forms another brachium pontis; The collector electrode of insulated gate bipolar transistor A4-1 connects the collector electrode of insulated gate bipolar transistor A4-3, as an input of the 4th full bridge inverter, the emitter of insulated gate bipolar transistor A4-2 connects the emitter of insulated gate bipolar transistor A4-4, as another input of the 4th full bridge inverter, the mid point of two brachium pontis is as the output of the 4th full bridge inverter.
The gate pole of each insulated gate bipolar transistor is via driver element connection control unit.
Locomotive of the present invention can be diesel locomotive; Each DC/DC translation circuit of DC600V auxiliary power supply of the present invention can power output 200kW, device gross output can reach 800kW, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, resistance R1, resistance R2, resistance R3 and resistance R4 form bleeder circuit 3, by existing four dividing potential drops to input voltage of the equal compacting of capacitance-resistance and the quick available protecting to follow-up full bridge inverter, also can not accident spread even if make the particular device of full bridge inverter damage; Described transformer T1, transformer T2, transformer T3 and transformer T4 are high-frequency isolation transformer, effectively realize the electrical isolation of primary and secondary; Each road DC/DC translation circuit can export direct current 150V; The LC filter circuit 8 that inductance L 1 and electric capacity C5 are formed can reduce output voltage pulsation, improves output quality; The setting of fuse FS1, in case main circuit short trouble causes main generator side fault spread; Utilize ground detection device, upon the occurrence of a ground fault, this ground detection device will send earth-fault signal to host computer, and then device of the present invention will be isolated protection and display alarm; In addition, described control unit can send corresponding over current fault signal, overvoltage fault-signal, overheating fault signal when overcurrent, overvoltage, the phenomenon such as overheated appear in each insulated gate bipolar transistor (IGBT) of each full bridge inverter to host computer.
DC600V auxiliary power supply provided by the invention and locomotive, described DC600V auxiliary power supply, under the prerequisite meeting original function of supplying power, significantly reduces volume and weight; Adopt the technical scheme of resistive-capacitive voltage divider → DC/AC inversion → transformer isolation → AC/DC rectification → smothing filtering, (output of four DC/DC translation circuits is connected successively to utilize four units in series technology, each DC/DC translation circuit only need carry out conversion process to the voltage obtained after resistive-capacitive voltage divider), disperse the potential risk that IGBT device is withstand voltage, substantially increase resistance to compression level and application reliability, safe and reliable.The present invention's application maturation, can accomplish 5kHz by each IGBT switching frequency of full bridge inverter, and market has the large batch of this IGBT of multi items to sell, and type selecting is convenient, is easy to buying, and application experience is enriched, the present invention eliminates the IGBT chopper circuit needing withstand voltage 4500V by high-frequency inversion technology, eliminate the flat ripple reactance of copped wave level and electric capacity simultaneously, enormously simplify assembly circuit structure, the volume of its isolating transformer and rectifying and wave-filtering inductance capacitance also greatly reduces, its module is installed, the general structures such as heat radiation all more simplify undoubtedly, and the material selected is few, cost is low, efficiency height simple circuit, according to 4500V-IGBT buck chopper scheme, because of the restriction of its switching frequency, large volume copped wave reactor and large bulk capacitance need be increased in rear class, unavoidably space will be brought, the series of problems such as cost and topology layout.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (9)
1. a DC600V auxiliary power supply, is characterized in that described DC600V auxiliary power supply comprises:
First input end and the second input;
Be connected to the bleeder circuit between first input end and the second input; Described bleeder circuit is used for carrying out voltage division processing to the input voltage between first input end and the second input, obtains the first equal voltage of voltage, the second voltage, tertiary voltage and the 4th voltage;
A DC/DC translation circuit, the 2nd DC/DC translation circuit, the 3rd DC/DC translation circuit and the 4th DC/DC translation circuit that four circuit structures are identical; A described DC/DC translation circuit is used for converting described first voltage; Described 2nd DC/DC translation circuit is used for converting described second voltage; Described 3rd DC/DC translation circuit is used for converting described tertiary voltage; Described 4th DC/DC translation circuit is used for converting described 4th voltage; The output of a described DC/DC translation circuit, the 2nd DC/DC translation circuit, the 3rd DC/DC translation circuit and the 4th DC/DC translation circuit is sequentially connected in series;
Filter circuit; A described DC/DC translation circuit, the 2nd DC/DC translation circuit, the 3rd DC/DC translation circuit and the 4th DC/DC translation circuit all have the first output and the second output; First output and second output of the 4th DC/DC translation circuit of a described DC/DC translation circuit are connected described filter circuit two input respectively; Two outputs of described filter circuit are as the output of described DC600V auxiliary power supply.
2. DC600V auxiliary power supply according to claim 1, is characterized in that described bleeder circuit comprises electric capacity C1, electric capacity C2, electric capacity C3 and the electric capacity C4 connected successively; Described electric capacity C1 two ends are parallel with resistance R1; Described electric capacity C2 two ends are parallel with resistance R2; Described electric capacity C3 two ends are parallel with resistance R3; Described electric capacity C4 two ends are parallel with resistance R4.
3. DC600V auxiliary power supply according to claim 2, is characterized in that,
A described DC/DC translation circuit comprises the first full bridge inverter, transformer T1 and the first full-wave rectifying circuit; Described first full bridge inverter comprises insulated gate bipolar transistor A1-1, insulated gate bipolar transistor A1-2, insulated gate bipolar transistor A1-3 and insulated gate bipolar transistor A1-4; Described insulated gate bipolar transistor A1-1 is connected with insulated gate bipolar transistor A1-2 and forms a brachium pontis of described first full bridge inverter, and described insulated gate bipolar transistor A1-3 is connected with insulated gate bipolar transistor A1-4 and forms another brachium pontis of described first full bridge inverter; The input of described first full bridge inverter is in parallel with described electric capacity C1; Described transformer T1 has primary coil and secondary coil; The secondary coil of described transformer T1 has centre tap; The output of described first full bridge inverter connects the primary coil two ends of described transformer T1; First full-wave rectifying circuit comprises rectifier diode D1 and rectifier diode D2; The secondary coil two ends of described transformer T1 connect the anode of rectifier diode D1 and the anode of rectifier diode D2 respectively; The negative electrode of described rectifier diode D1 is connected with rectifier diode D2 negative electrode, and as the first output of a described DC/DC translation circuit; The centre tap of the secondary coil of described transformer T1 is as the second output of a described DC/DC translation circuit;
Described 2nd DC/DC translation circuit comprises the second full bridge inverter, transformer T2 and the second full-wave rectifying circuit; Described second full bridge inverter comprises insulated gate bipolar transistor A2-1, insulated gate bipolar transistor A2-2, insulated gate bipolar transistor A2-3 and insulated gate bipolar transistor A2-4; Described insulated gate bipolar transistor A2-1 is connected with insulated gate bipolar transistor A2-2 and forms a brachium pontis of described second full bridge inverter, and described insulated gate bipolar transistor A2-3 is connected with insulated gate bipolar transistor A2-4 and forms another brachium pontis of described second full bridge inverter; The input of described second full bridge inverter is in parallel with described electric capacity C2; Described transformer T2 has primary coil and secondary coil; The secondary coil of described transformer T2 has centre tap; The output of described second full bridge inverter connects the primary coil two ends of described transformer T2; Second full-wave rectifying circuit comprises rectifier diode D3 and rectifier diode D4; The secondary coil two ends of described transformer T2 connect the anode of rectifier diode D3 and the anode of rectifier diode D4 respectively; The negative electrode of described rectifier diode D3 is connected with rectifier diode D4 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T1 as the first output of described 2nd DC/DC translation circuit; The centre tap of the secondary coil of described transformer T2 is as the second output of described 2nd DC/DC translation circuit;
Described 3rd DC/DC translation circuit comprises the 3rd full bridge inverter, transformer T3 and the 3rd full-wave rectifying circuit; Described 3rd full bridge inverter comprises insulated gate bipolar transistor A3-1, insulated gate bipolar transistor A3-2, insulated gate bipolar transistor A3-3 and insulated gate bipolar transistor A3-4; Described insulated gate bipolar transistor A3-1 is connected with insulated gate bipolar transistor A3-2 and forms a brachium pontis of described 3rd full bridge inverter, and described insulated gate bipolar transistor A3-3 is connected with insulated gate bipolar transistor A3-4 and forms another brachium pontis of described 3rd full bridge inverter; The input of described 3rd full bridge inverter is in parallel with described electric capacity C3; Described transformer T3 has primary coil and secondary coil; The secondary coil of described transformer T3 has centre tap; The output of described 3rd full bridge inverter connects the primary coil two ends of described transformer T3; 3rd full-wave rectifying circuit comprises rectifier diode D5 and rectifier diode D6; The secondary coil two ends of described transformer T3 connect the anode of rectifier diode D5 and the anode of rectifier diode D6 respectively; The negative electrode of described rectifier diode D5 is connected with rectifier diode D6 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T2 as the first output of described 3rd DC/DC translation circuit; The centre tap of the secondary coil of described transformer T3 is as the second output of described 3rd DC/DC translation circuit;
Described 4th DC/DC translation circuit comprises the 4th full bridge inverter, transformer T4 and the 4th full-wave rectifying circuit; Described 4th full bridge inverter comprises insulated gate bipolar transistor A4-1, insulated gate bipolar transistor A4-2, insulated gate bipolar transistor A4-3 and insulated gate bipolar transistor A4-4; Described insulated gate bipolar transistor A4-1 is connected with insulated gate bipolar transistor A4-2 and forms a brachium pontis of described 4th full bridge inverter, and described insulated gate bipolar transistor A4-3 is connected with insulated gate bipolar transistor A4-4 and forms another brachium pontis of described 4th full bridge inverter; The input of described 4th full bridge inverter is in parallel with described electric capacity C4; Described transformer T4 has primary coil and secondary coil; The secondary coil of described transformer T4 has centre tap; The output of described 4th full bridge inverter connects the primary coil two ends of described transformer T4; 4th full-wave rectifying circuit comprises rectifier diode D7 and rectifier diode D8; The secondary coil two ends of described transformer T4 connect the anode of rectifier diode D7 and the anode of rectifier diode D8 respectively; The negative electrode of described rectifier diode D7 is connected with rectifier diode D8 negative electrode, and is connected with the centre tap of the secondary coil of described transformer T3 as the first output of described 4th DC/DC translation circuit; The centre tap of the secondary coil of described transformer T4 is as the second output of described 4th DC/DC translation circuit.
4. DC600V auxiliary power supply according to claim 1, is characterized in that described filter circuit is the LC filter circuit that inductance L 1 and electric capacity C5 are formed; Described DC600V auxiliary power supply also comprises resistance RG1 and the resistance RG2 of series connection mutually; The series arm that resistance RG1 and resistance RG2 is formed is in parallel with described electric capacity C5; Resistance RG1 is connected the earth with the serial connection point of resistance RG2.
5. DC600V auxiliary power supply according to claim 1, it is characterized in that the output that described DC600V auxiliary power supply also comprises one end and connects described DC600V auxiliary power supply, the other end connects the ground detection device of the earth; Described DC600V auxiliary power supply also comprises the fuse FS1 be serially connected between first input end and bleeder circuit.
6. DC600V auxiliary power supply according to claim 3, it is characterized in that described DC600V auxiliary power supply also comprises the driver element be connected with the 4th full bridge inverter with the first full bridge inverter, the second full bridge inverter, the 3rd full bridge inverter, and for controlling the control unit of each insulated gate bipolar transistor turn-on and turn-off via driver element according to predetermined switch periods.
7. DC600V auxiliary power supply according to claim 1, is characterized in that the input voltage range of described DC600V auxiliary power supply is direct current 860 ~ 2600V; The output voltage of described DC600V auxiliary power supply is direct current 600V.
8. DC600V auxiliary power supply according to claim 3, is characterized in that the switching frequency >=5kHz of each insulated gate bipolar transistor of the first full bridge inverter, the second full bridge inverter, the 3rd full bridge inverter and the 4th full bridge inverter.
9. a locomotive, is characterized in that the DC600V auxiliary power supply comprised described in any one of claim 1 to 8; Described DC600V auxiliary power supply is connected through the main generator of rectifying device with described locomotive.
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| CN201510789688.0A CN105337489A (en) | 2015-11-17 | 2015-11-17 | DC600V auxiliary power supply device and locomotive |
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| CN201510789688.0A CN105337489A (en) | 2015-11-17 | 2015-11-17 | DC600V auxiliary power supply device and locomotive |
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| CN107241023A (en) * | 2017-07-18 | 2017-10-10 | 常州天曼智能科技有限公司 | A kind of passive equalizing circuit |
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Application publication date: 20160217 |