CN203911736U - High-power converter and driving signal transmission circuit - Google Patents
High-power converter and driving signal transmission circuit Download PDFInfo
- Publication number
- CN203911736U CN203911736U CN201420250137.8U CN201420250137U CN203911736U CN 203911736 U CN203911736 U CN 203911736U CN 201420250137 U CN201420250137 U CN 201420250137U CN 203911736 U CN203911736 U CN 203911736U
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- subelement
- driving
- light signal
- signal
- distribution plate
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Abstract
The utility model provides a high-power converter and a driving signal transmission circuit. The high-power converter comprises a rectifier module, an inverter module and a braking module; any one or both the rectifier module, the inverter module and the braking module comprise control units and power units; each of the power units comprises a driving distributing plate, multiple driving plates and power devices; each of the control units comprises an FPGA sending assembly; each of the driving distributing plates comprises a first light signal sending branch unit each of the driving plates comprises a first light signal receiving branch unit; the FPGA sending assemblies are connected with the driving distributing plates via difference electrical signal wires; and the first light signal sending branch units are connected to a first light signal receiving branch unit of one of the driving plates via fibers. According to the utility model, the control units are connected with the driving plates via the difference electrical signal wires, and the driving distributing plates are connected with the driving plates via the fibers, so safe transmission of driving signals is achieved, and safety requirements can be satisfied.
Description
Technical field
The utility model relates to high-power converter, more particularly, relates to a kind of high-power converter and drives signal circuit.
Background technology
High-power converter is placed four-quadrant rectifier stack, inversion assembly, brake assemblies etc. by rectifier cabinet, inverter cabinet, brake cabinet philosophy conventionally, and using incoming line cabinet inlet wire, the assemblies such as wherein four-quadrant rectification, inversion and braking are normally by IGBT constant power unit drives.The transmission of driving signal and distribution between control unit and the power cell of above-mentioned each assembly, can produce a very large impact system safety and performance, thereby extremely important.
The common electric current of mesolow high-power converter is all larger, large electric current is very easily to driving signal to cause interference, therefore in engineering, drive signal transmission and distribute the normal differential electric signal mode that adopts, be to be sent to drive plate after driving signal is converted to differential electric signal by control unit, then by drive plate, differential electric signal be reduced to and drive signal rear drive control unit.But for the system of 1140V and above, differential electric signal connected mode is difficult to meet safety requirement.
In addition, also can realize the transmission that drives signal between control unit and drive plate by optical fiber.But generally speaking, high-power converter control unit is more to the transmission range of power cell way long, driving signal, if the mode that adopts optical fiber to connect, easily causes optical fiber bending or affect the safe transmission that drives signal because bending radius is too small, there is larger risk.
Utility model content
The technical problems to be solved in the utility model is, for driving signal transmission cannot meet that safety requires in above-mentioned high-power converter and signal transmission exists the problem of security risk, a kind of high-power converter is provided and drives signal circuit.
The technical scheme that the utility model solves the problems of the technologies described above is, a kind of high-power converter is provided, comprise rectification module, inversion module and brake module, and described rectification module, inversion module, any in brake module or multiple control unit and power cell by described control unit control of comprising, each power cell comprises multiple drive plates and the power device being driven by drive plate respectively, described power cell also comprises driving distribution plate, and described control unit comprises FPGA sending assembly, described driving distribution plate comprises that multiple the first light signals send subelement, described in each, drive plate comprises that the first light signal receives subelement, wherein: described FPGA sending assembly is connected and driven distribution plate by differential electric signal line, described multiple the first light signal transmission subelement is connected to respectively the first light signal reception subelement of a drive plate via optical fiber.
In high-power converter described in the utility model, described control unit comprises fault-signal receiving unit, described driving distribution plate comprises that multiple the second light signals receive subelement, described in each, drive plate comprises that the second light signal sends subelement, the second light signal of multiple described drive plates sends subelement and is connected to and drives second light signal of distribution plate to receive subelement via optical fiber respectively, and described driving distribution plate is connected to the fault-signal receiving unit of control unit by differential electric signal line.
In high-power converter described in the utility model, the output that the first light signal on described drive plate receives subelement connects photoelectric switching circuit, and the output of this photoelectric switching circuit is connected to the control end of power device.
In high-power converter described in the utility model, described differential electric signal line adopts shielded multiconductor cable.
The utility model also provides a kind of signal circuit that drives, for realizing the driving signal transmission between control unit and power cell, this transmission circuit comprise be positioned at power cell driving distribution plate, be positioned at control unit FPGA sending assembly, be positioned at power cell drive plate first light signal receive subelement, and described driving distribution plate comprise multiple first light signals send subelements; Described FPGA sending assembly is connected to driving distribution plate by differential electric signal line; Described multiple the first light signal transmission subelement is connected to respectively the first light signal reception subelement of a drive plate via optical fiber.
In driving signal circuit described in the utility model, described control unit comprises fault-signal receiving unit, described driving distribution plate comprises that multiple the second light signals receive subelement, described in each, drive plate comprises that the second light signal sends subelement, the second light signal of multiple described drive plates sends subelement and is connected to and drives second light signal of distribution plate to receive subelement via optical fiber respectively, and described driving distribution plate is connected to the fault-signal receiving unit of control unit by differential electric signal line.
In driving signal circuit described in the utility model, the output that the first light signal on described drive plate receives subelement connects photoelectric switching circuit, and the output of this photoelectric switching circuit is connected to the control end of power device.
In driving signal circuit described in the utility model, described differential electric signal line adopts shielded multiconductor cable.
High-power converter of the present utility model and driving signal circuit have following beneficial effect: drive distribution plate and use differential electric signal connection control unit and drive distribution plate, use optical fiber to be connected driving distribution plate and drive plate by increasing at power cell, having realized and driven the safe transmission of signal and can meet safety requirement.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model drives signal circuit embodiment.
Fig. 2 is control unit in Fig. 1, the schematic diagram that drives the specific implementation of distribution plate and driving.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, 2, be the schematic diagram that the utility model drives signal circuit embodiment, this driving signal circuit is for realizing the driving signal transmission between control unit 11 and power cell 12.
Driving signal circuit in the present embodiment comprises that driving distribution plate 121, FPGA sending assembly 111 and the first light signal receive subelement 1222, wherein drive distribution plate 121 to there are multiple the first light signals and send subelement 1211, FPGA sending assembly 111 is positioned on control unit 11, and the first light signal receives subelement 1222 and is positioned on the drive plate 122 of power cell 12.And FPGA sending assembly is connected to and is driven distribution plate 121 by differential electric signal line, drive distribution plate 121 to send subelement 1211 by multiple the first light signals and be connected with the first light signal reception subelement 1222 of multiple drive plates 122 via optical fiber respectively.Thereby driving signal control unit 11 being produced by FPGA sending assembly 111 is converted to differential electric signal, and be transferred to the first light signal transmission subelement 1211 by differential electric signal line, after driving distribution plate 121 to logical process such as same brachium pontis signal interlockings, the first light signal that sends to respectively different drive plate 122 via optical fiber by the first light signal transmission subelement 1211 receives subelement 1222, completes the transmission of power cell driving signal.Finally by drive plate 122 according to the on/off of the signal controlling power device 123 receiving.
The transmission of driving signal and allocative decision that above-mentioned driving signal circuit has adopted photoelectricity to mix, by drive distribution plate 121 (for realizing the mutual conversion of differential electric signal and light signal) inner the increasing of power cell 12 on conventional method basis, utilize good, the easy-to-install feature of electric signal transmission cable pliability, only solved with optical fiber and may cause that repeatedly bending or bending radius are compared with little and affect signals security transmission, the more problem of number of fibers; Between the driving distribution plate 121 of power cell 12 inside and drive plate 122, adopt optical fiber to connect, only solved and be difficult to meet with the signal of telecommunication problem that safety requires.
Above-mentioned the first light signal sends subelement 1211, FPGA sending assembly 111 and the first light signal reception subelement 1222 and is electrically connected to form by multiple electronic devices and components respectively, thereby realizes corresponding signal processing.For example the first light signal sends subelement 1211, FPGA sending assembly 111 and the first light signal reception subelement 1222 and can adopt respectively existing independent use differential electric signal mode and use separately the circuit in the relevant device in optical fiber mode.
In addition, above-mentioned control unit 11 also can comprise fault-signal receiving unit 112, correspondingly, drive distribution plate 121 to comprise that multiple the second light signals receive subelement 1212, each drive plate 122 comprises that the second light signal sends subelement 1221, the second light signal of multiple drive plates 122 sends subelement 1221 and is connected to and drives second light signal of distribution plate 121 to receive subelement 1212 via optical fiber respectively, and drives distribution plate 121 to be connected to the fault-signal receiving unit 112 of control unit 11 by differential electric signal line.The fault-signal of drive plate 122 sends subelement 1221 by the second light signal and receives subelement 1212 via optical fiber and the second light signal and be uploaded to and drive distribution plate 121 and by the fault-signal receiving unit 112 that drives distribution plate 121 signal to be processed and changed into warp after differential electric signal to be sent to by differential electric signal line control unit 11.
The output that the first light signal on above-mentioned drive plate 122 receives subelement 1222 can connect photoelectric switching circuit, thereby output a control signal to the control end of power device 123 (such as IGBT element, switching tube etc.) by the output of this photoelectric switching circuit, realize the control of power device.
Especially, the FPGA assembly 111 of above-mentioned connection control unit 11 can adopt shielded multiconductor cable with the differential electric signal line that the first light signal that drives distribution plate 121 sends subelement 1211.
Above-mentioned driving signal circuit can directly be applied in high-power converter, this current transformer comprises rectification module, inversion module and brake module, and any in above-mentioned rectification module, inversion module, brake module or multiple control unit and power cell by control unit control of comprising, each power cell comprises multiple drive plates and the power device being driven by drive plate respectively.Above-mentioned power cell also comprises driving distribution plate, and control unit comprises FPGA sending assembly, drive distribution plate to comprise that multiple the first light signals send subelement, each drive plate comprises that the first light signal receives subelement, wherein: FPGA sending assembly is connected to driving distribution plate by differential electric signal line, multiple the first light signals transmission subelements are connected to respectively the first light signal reception subelement of a drive plate via optical fiber.
Above-mentioned control unit also can comprise fault-signal receiving unit, correspondingly, drive distribution plate to comprise that multiple the second light signals receive subelement, each drive plate comprises that the second light signal sends subelement, the second light signal of multiple drive plates sends subelement and is connected to and drives second light signal of distribution plate to receive subelement via optical fiber respectively, and drives distribution plate to be connected to the fault-signal receiving unit of control unit by differential electric signal line.The fault-signal of drive plate sends subelement by the second light signal and receives subelement via optical fiber and the second light signal and be uploaded to and drive distribution plate and by the fault-signal receiving unit that drives distribution plate signal to be processed and changed into warp after differential electric signal to be sent to by differential electric signal line control unit.
In above-mentioned high-power converter, the output that the first light signal on drive plate receives subelement connects photoelectric switching circuit, and the output of this photoelectric switching circuit is connected to the control end of power device; Differential electric signal line can adopt shielded multiconductor cable.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (8)
1. a high-power converter, comprise rectification module, inversion module and brake module, and described rectification module, inversion module, any in brake module or multiple control unit and power cell by described control unit control of comprising, each power cell comprises multiple drive plates and the power device being driven by drive plate respectively, it is characterized in that: described power cell also comprises driving distribution plate, and described control unit comprises FPGA sending assembly, described driving distribution plate comprises that multiple the first light signals send subelement, described in each, drive plate comprises that the first light signal receives subelement, wherein: described FPGA sending assembly is connected and driven distribution plate by differential electric signal line, described multiple the first light signal transmission subelement is connected to respectively the first light signal reception subelement of a drive plate via optical fiber.
2. high-power converter according to claim 1, it is characterized in that: described control unit comprises fault-signal receiving unit, described driving distribution plate comprises that multiple the second light signals receive subelement, described in each, drive plate comprises that the second light signal sends subelement, the second light signal of multiple described drive plates sends subelement and is connected to and drives second light signal of distribution plate to receive subelement via optical fiber respectively, and described driving distribution plate is connected to the fault-signal receiving unit of control unit by differential electric signal line.
3. high-power converter according to claim 1, is characterized in that: the output that the first light signal on described drive plate receives subelement connects photoelectric switching circuit, and the output of this photoelectric switching circuit is connected to the control end of power device.
4. high-power converter according to claim 1, is characterized in that: described differential electric signal line adopts shielded multiconductor cable.
5. a driving signal circuit, for realizing the driving signal transmission between control unit and power cell, it is characterized in that: this transmission circuit comprise be positioned at power cell driving distribution plate, be positioned at control unit FPGA sending assembly, be positioned at power cell drive plate first light signal receive subelement, and described driving distribution plate comprise multiple first light signals send subelements; Described FPGA sending assembly is connected to driving distribution plate by differential electric signal line; Described multiple the first light signal transmission subelement is connected to respectively the first light signal reception subelement of a drive plate via optical fiber.
6. driving signal circuit according to claim 5, it is characterized in that: described control unit comprises fault-signal receiving unit, described driving distribution plate comprises that multiple the second light signals receive subelement, described in each, drive plate comprises that the second light signal sends subelement, the second light signal of multiple described drive plates sends subelement and is connected to and drives second light signal of distribution plate to receive subelement via optical fiber respectively, and described driving distribution plate is connected to the fault-signal receiving unit of control unit by differential electric signal line.
7. driving signal circuit according to claim 5, is characterized in that: the output that the first light signal on described drive plate receives subelement connects photoelectric switching circuit, and the output of this photoelectric switching circuit is connected to the control end of power device.
8. driving signal circuit according to claim 5, is characterized in that: described differential electric signal line adopts shielded multiconductor cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250137.8U CN203911736U (en) | 2014-05-15 | 2014-05-15 | High-power converter and driving signal transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250137.8U CN203911736U (en) | 2014-05-15 | 2014-05-15 | High-power converter and driving signal transmission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911736U true CN203911736U (en) | 2014-10-29 |
Family
ID=51785982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420250137.8U Expired - Fee Related CN203911736U (en) | 2014-05-15 | 2014-05-15 | High-power converter and driving signal transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911736U (en) |
-
2014
- 2014-05-15 CN CN201420250137.8U patent/CN203911736U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20200515 |