CN216086515U - Inverter starting and exciting circuit of hybrid power locomotive - Google Patents
Inverter starting and exciting circuit of hybrid power locomotive Download PDFInfo
- Publication number
- CN216086515U CN216086515U CN202122599744.8U CN202122599744U CN216086515U CN 216086515 U CN216086515 U CN 216086515U CN 202122599744 U CN202122599744 U CN 202122599744U CN 216086515 U CN216086515 U CN 216086515U
- Authority
- CN
- China
- Prior art keywords
- excitation
- storage battery
- contactor
- locomotive
- circuit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses an inversion starting and exciting circuit of a hybrid power locomotive, which comprises: the power storage battery circuit: an output winding electrically connected to a main generator of the locomotive and carrying alternating current to the output winding; controlling the storage battery circuit: an excitation winding electrically connected to a main generator of the locomotive and delivering direct current to the excitation winding; when the fuel oil power machine of the locomotive is started in an inversion mode, the output winding of the main generator of the locomotive is powered by the power storage battery circuit, and the excitation winding of the main generator of the locomotive is powered by the control storage battery circuit.
Description
Technical Field
The utility model relates to an inverter starting and exciting circuit of a hybrid power locomotive.
Background
A hybrid vehicle such as a diesel-electric hybrid vehicle is provided, in which a diesel engine is mainly started by a main generator in an electric mode. When the traditional alternating current locomotive diesel engine is started in an inversion mode, an excitation winding and an output winding of a main generator are both supplied with power and controlled by a storage battery through an inverter.
When a fuel oil power machine of a hybrid locomotive is started, a power storage battery supplies power to an output winding of a main generator through an inverter and controls the output winding, the control storage battery is no longer a main power supply source for starting a diesel engine, but the rated voltage of the power storage battery is 1500V, and the rated voltage of an excitation winding of the main generator is only 80V, so that an inverter starting and excitation circuit of the hybrid locomotive needs to be designed, and the excitation working condition of the main generator after the diesel engine is started is considered.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, and an inverter starting and exciting circuit of a hybrid power locomotive is provided.
The technical scheme adopted by the utility model for solving the technical problems is as follows: an inverter starting and exciting circuit of a hybrid locomotive, comprising:
the power storage battery circuit: an output winding electrically connected to a main generator of the locomotive and carrying alternating current to the output winding;
controlling the storage battery circuit: an excitation winding electrically connected to a main generator of the locomotive and delivering direct current to the excitation winding;
when the fuel oil power machine of the locomotive is started in an inverted mode, the output winding of the main generator of the locomotive is powered by the power storage battery circuit, and the excitation winding of the main generator of the locomotive is powered by the control storage battery circuit;
the power storage battery circuit comprises a power storage battery and a converter cabinet; the converter cabinet comprises an inversion module, and the inversion module inverts direct current of the power storage battery into alternating current and then transmits the alternating current to the output winding.
Further, the converter cabinet also comprises a support capacitor connected in parallel with the inverter module.
The power storage battery circuit further comprises a direct current positive end contactor and a direct current negative end contactor which are connected with the power storage battery in series, the direct current positive end contactor is connected with a pre-charging circuit in parallel, and the pre-charging circuit is formed by connecting a pre-charging resistor and a pre-charging contactor in series.
Further, the control storage battery circuit comprises a control storage battery, a first excitation contactor and a second excitation contactor;
the excitation winding, the first contact of the first excitation contactor, the first excitation resistor, the second excitation resistor, the control storage battery and the contact of the first excitation contactor form a series circuit;
and a first contact of the second excitation contactor is connected with the second excitation resistor in parallel.
Furthermore, the inverter starting and exciting circuit further comprises a protection device loop, and the protection device loop comprises a first PRS protection device and a second PRS protection device; the first PRS protection device is connected with a second contact of the second excitation contactor in series and then connected with a first contact of the first excitation contactor in parallel; and the second PRS protection device is connected with a second contact of the first excitation contactor in parallel.
The utility model has the beneficial effects that: the hybrid locomotive of the present invention may preferably be a diesel-electric hybrid locomotive, for example. When the fuel oil power machine of the hybrid power locomotive is started in an inversion mode, the power storage battery circuit independently transmits alternating current to the output winding of the main generator, and the storage battery circuit is controlled to independently transmit direct current to the excitation winding. The utility model provides an inversion starting scheme of a hybrid power locomotive, which considers both the starting of a fuel power machine and the excitation scheme of a main generator, simultaneously meets the starting condition of the fuel power machine and the excitation condition of the main generator, and protects electrical equipment in a loop of a support capacitor and an excitation winding of the main generator.
Drawings
The utility model is further described with reference to the following figures and embodiments.
Fig. 1 is a schematic circuit diagram of an inverter starting and exciting circuit of a hybrid vehicle according to the present invention.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, an inverter starting and exciting circuit of a hybrid locomotive according to an embodiment of the present invention includes: the power storage battery circuit: an output winding electrically connected to a main generator of the locomotive and carrying alternating current to the output winding; controlling the storage battery circuit: an excitation winding electrically connected to a main generator of the locomotive and delivering direct current to the excitation winding; when the fuel oil power machine of the locomotive is started in an inversion mode, the output winding of the main generator of the locomotive is powered by the power storage battery circuit, and the excitation winding of the main generator of the locomotive is powered by the control storage battery circuit.
When the fuel oil power machine of the hybrid power locomotive is started in an inversion mode, the power storage battery circuit independently transmits alternating current to the output winding of the main generator of the locomotive, and the storage battery circuit is controlled to independently transmit direct current to the excitation winding to create a magnetic field atmosphere.
One particular embodiment of the power battery circuit includes: a power storage battery and a converter cabinet; the converter cabinet comprises an inversion module and a support capacitor connected in parallel with the inversion module, wherein the inversion module inverts direct current of the power storage battery into alternating current and then transmits the alternating current to the output winding; the power storage battery circuit further comprises a direct current positive end contactor and a direct current negative end contactor which are connected with the power storage battery in series, the direct current positive end contactor is connected with a pre-charging circuit in parallel, and the pre-charging circuit is formed by connecting a pre-charging resistor and a pre-charging contactor in series. When the inverter is used, before the power storage battery provides direct current for the inverter module to invert the alternating current for conveying the output winding, the power storage battery charges a supporting capacitor in the converter cabinet through a pre-charging contactor and a pre-charging resistor, namely, the pre-charging contactor and a direct current negative terminal contactor are closed, and simultaneously, a direct current positive terminal contactor is opened, so that current flows into the supporting capacitor from the power storage battery after flowing through the pre-charging resistor and the pre-charging contactor so as to pre-charge the supporting capacitor, then the pre-charging contactor is disconnected, the direct current positive terminal contactor and the direct current negative terminal contactor are connected, the power storage battery is put into use, namely, the converter cabinet is supplied with power to invert the alternating current into the alternating current to be conveyed to the output winding. In the design of this embodiment, through precharging contactor control support capacitor, prevent that high voltage direct access from causing support capacitor to puncture, protected support capacitor, and the electrical equipment in the return circuit.
Further, the control storage battery circuit comprises a control storage battery, a first excitation contactor and a second excitation contactor;
the excitation winding, the first contact of the first excitation contactor, the first excitation resistor, the second excitation resistor, the control storage battery and the contact of the first excitation contactor form a series circuit;
and a first contact of the second excitation contactor is connected with the second excitation resistor in parallel.
When the locomotive works, the power storage battery circuit provides alternating current to the output winding of the main generator so that the alternating current passes through the output winding, meanwhile, the first excitation contactor is connected, namely the first contact of the first excitation contactor and the second contact of the first excitation contactor are closed, the second excitation contactor is connected, namely the first contact of the second excitation contactor and the second contact of the second excitation contactor are closed, the first excitation resistor is connected in series with the control storage battery circuit, the control storage battery circuit provides direct current to the excitation winding of the main generator to form a magnetic field, the output winding through which the alternating current passes cuts the magnetic field to generate rotating force, and the fuel engine of the locomotive can be started. After starting, the power storage battery circuit stops supplying power to the main generator, or after the power storage battery circuit and the control storage battery circuit stop supplying power at the same time, the control storage battery circuit supplies power again. After the standby vehicle is started, the first contact of the second excitation contactor is disconnected, so that the first excitation resistor and the second excitation resistor are connected in series to the control storage battery circuit, a relatively small current is obtained to supply power to the excitation winding to form a stable magnetic field, the magnetic field required by stable operation of the locomotive is met, the control storage battery circuit adopts a time-sharing series connection mode to obtain two currents with different sizes, the large current meets the starting requirement, and the small current meets the requirement of stable operation after the starting.
Furthermore, the inverter starting and exciting circuit further comprises a protection device loop, and the protection device loop comprises a first PRS protection device and a second PRS protection device; the first PRS protection device is connected with a second contact of the second excitation contactor in series and then connected with a first contact of the first excitation contactor in parallel; and the second PRS protection device is connected with a second contact of the first excitation contactor in parallel.
The inverter starting and exciting circuit adopts a first PRS protection device and a second PRS protection device for overvoltage protection, the first PRS protection device and the second PRS protection device are added to absorb arc energy disconnected by contactor contacts, and reverse electromotive force generated by an exciting winding of a main generator when the first exciting contactor and the second exciting contactor are disconnected is released to protect electrical equipment in a loop and protect a main excitation controller, and the main excitation controller is connected with the exciting winding of the main generator in parallel. And a second contact of a second excitation contactor is connected in series in a loop of the protection device, and after the control storage battery is disconnected with the excitation winding, the phenomenon that the internal capacitor of the first PRS protection device is connected in series between the control storage battery and the main excitation controller for a long time and is frequently charged and discharged, so that overheating and burning loss are avoided.
A control method for an inverter starting and exciting circuit of a hybrid power locomotive comprises the following steps:
s10, a pre-charging contactor in a power storage battery circuit is connected with a direct current negative terminal contactor, the power storage battery charges a support capacitor through the pre-charging circuit, then the pre-charging contactor is disconnected, the direct current positive terminal contactor is connected with the direct current negative terminal contactor, and the power storage battery circuit supplies power to an output winding of a main generator of the locomotive; and completing the input of the power storage battery.
S20, the first contact of the first excitation contactor and the second contact of the first excitation contactor are both connected, and the first contact of the second excitation contactor is connected;
the first excitation resistor is connected to the control storage battery circuit, and the control storage battery provides a first excitation current for an excitation winding of a main generator of the locomotive; the inversion module is communicated with an output winding which inverts the direct current of the power storage battery into alternating current and then transmits the alternating current to a main generator of the locomotive; the fuel engine of the locomotive can be started. The exciting current meets the current required by starting the fuel oil power machine of the exciter locomotive.
S30, after a fuel oil power machine of the locomotive is started, the direct current positive end contactor and the direct current negative end contactor are disconnected, and the first contact of the first excitation contactor and the second contact of the first excitation contactor are disconnected firstly and then the first contact of the second excitation contactor is disconnected; and controlling the storage battery to exit.
S40, a first contact of the first excitation contactor and a second contact of the first excitation contactor are connected, the first excitation resistor and the second excitation resistor are connected to the control storage battery circuit, and the control storage battery provides a second excitation current for an excitation winding of a main generator of the locomotive; the second excitation current is smaller than the first excitation current.
And S50, after the main generator of the locomotive reaches the idling voltage, disconnecting the first contact of the first excitation contactor and the second contact of the first excitation contactor, and controlling the storage battery to exit.
The hybrid locomotive of the present invention may preferably be a diesel-electric hybrid locomotive, for example. The utility model provides an inversion starting scheme of a hybrid power locomotive, which considers the starting of a fuel power machine and the excitation scheme of a main generator, simultaneously meets the starting condition of the fuel power machine and the excitation condition of the main generator, protects electrical equipment in a loop of a supporting capacitor and an excitation winding of the main generator, and prolongs the service life of various contactors, a first PRS protection device and a second PRS protection device.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (5)
1. An inverter starting and exciting circuit of a hybrid locomotive, comprising:
the power storage battery circuit: an output winding electrically connected to a main generator of the locomotive and carrying alternating current to the output winding;
controlling the storage battery circuit: an excitation winding electrically connected to a main generator of the locomotive and delivering direct current to the excitation winding;
when the fuel oil power machine of the locomotive is started in an inverted mode, the output winding of the main generator of the locomotive is powered by the power storage battery circuit, and the excitation winding of the main generator of the locomotive is powered by the control storage battery circuit;
the power storage battery circuit comprises a power storage battery and a converter cabinet; the converter cabinet comprises an inversion module, and the inversion module inverts direct current of the power storage battery into alternating current and then transmits the alternating current to the output winding.
2. The inverter starting and exciting circuit of a hybrid locomotive according to claim 1, wherein said converter cabinet further comprises a support capacitor connected in parallel to said inverter module.
3. The inverter starting and exciting circuit of a hybrid vehicle according to claim 2,
the power storage battery circuit further comprises a direct current positive end contactor and a direct current negative end contactor which are connected with the power storage battery in series, the direct current positive end contactor is connected with a pre-charging circuit in parallel, and the pre-charging circuit is formed by connecting a pre-charging resistor and a pre-charging contactor in series.
4. The inverter starting and exciting circuit of a hybrid locomotive according to claim 1, wherein the control battery circuit comprises a control battery and a first exciting contactor, a second exciting contactor;
the excitation winding, the first contact of the first excitation contactor, the first excitation resistor, the second excitation resistor, the control storage battery and the contact of the first excitation contactor form a series circuit;
and a first contact of the second excitation contactor is connected with the second excitation resistor in parallel.
5. The inverter starting and exciting circuit of a hybrid locomotive according to claim 4, further comprising a protection device loop comprising a first PRS protection device, a second PRS protection device; the first PRS protection device is connected with a second contact of the second excitation contactor in series and then connected with a first contact of the first excitation contactor in parallel; and the second PRS protection device is connected with a second contact of the first excitation contactor in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122599744.8U CN216086515U (en) | 2021-10-27 | 2021-10-27 | Inverter starting and exciting circuit of hybrid power locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122599744.8U CN216086515U (en) | 2021-10-27 | 2021-10-27 | Inverter starting and exciting circuit of hybrid power locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216086515U true CN216086515U (en) | 2022-03-18 |
Family
ID=80642141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122599744.8U Active CN216086515U (en) | 2021-10-27 | 2021-10-27 | Inverter starting and exciting circuit of hybrid power locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216086515U (en) |
-
2021
- 2021-10-27 CN CN202122599744.8U patent/CN216086515U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102161315B (en) | Vehicle power supply apparatus | |
| CN107444319B (en) | Vehicle power source device | |
| KR101220367B1 (en) | System of recharge for plug-in hybrid vehicle and method thereof | |
| CN204586537U (en) | The full electric drive low speed tractor of extended-range | |
| CN104005896A (en) | Combustion and emergency starting control system with auxiliary power | |
| CN207972603U (en) | A kind of double electric network compositions of the light-duty hybrid power system based on BSG | |
| CN103711630A (en) | Split-type auxiliary power combustion and emergency starting system | |
| CN107733055B (en) | Charging system for vehicle-mounted power battery of oil-electricity hybrid power locomotive | |
| CN216086515U (en) | Inverter starting and exciting circuit of hybrid power locomotive | |
| JP2018057202A (en) | Power supply device for vehicle | |
| CN102910061A (en) | Supercapacitor energy-storage ISG (Integrated Started Generator) asynchronous motor type hybrid power system and generating control method | |
| CN203331864U (en) | Power battery charging protective device | |
| CN102555825A (en) | High-voltage power distribution unit of hybrid electric bus | |
| CN207758730U (en) | Automotive electrical system and automobile | |
| CN208359938U (en) | A kind of electric vehicle with high course continuation mileage | |
| JP2018098954A (en) | Controller for electric vehicle | |
| CN207579576U (en) | Energy recycle device and vehicle | |
| CN113708676A (en) | Starting excitation circuit of hybrid power locomotive, hybrid power locomotive and control method | |
| CN102820688A (en) | Automobile power system | |
| CN106968862A (en) | A kind of serioparallel exchange device for the portable startup power supply of motor vehicles | |
| CN207750162U (en) | A kind of dumper self-start circuit | |
| KR20140066360A (en) | Method for controlling pre-charging of hybrid electric vehicle | |
| JP2012076624A (en) | Power source control device of vehicle | |
| JP2018130975A (en) | Vehicle control device | |
| KR20160139476A (en) | Battery for hybrid vehicle and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |