CN218585194U - Power module control panel - Google Patents
Power module control panel Download PDFInfo
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- CN218585194U CN218585194U CN202222383258.7U CN202222383258U CN218585194U CN 218585194 U CN218585194 U CN 218585194U CN 202222383258 U CN202222383258 U CN 202222383258U CN 218585194 U CN218585194 U CN 218585194U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 65
- 239000013307 optical fiber Substances 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
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- 239000013078 crystal Substances 0.000 claims description 4
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- 238000001914 filtration Methods 0.000 claims description 3
- 239000005304 optical glass Substances 0.000 claims description 3
- 239000013308 plastic optical fiber Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a power module control panel, which comprises a board card, wherein the board card is provided with a processor system and adopts FPGA as a core processor; the processor system is electrically connected with a starting configuration circuit, a power supply conversion module circuit, a power module control circuit, a temperature acquisition conversion circuit, a voltage acquisition conversion circuit, a current acquisition conversion circuit and an optical fiber communication transceiver circuit; the utility model discloses a power module control panel has realized simultaneously to a plurality of power module parallel control make a plurality of power modules can carry out the output of opening and shutting off in step; the state monitoring function of the power module is realized, and the temperature semaphore, the voltage semaphore and the current semaphore on the power module can be monitored in real time; the control signal of the power module is isolated in a photoelectric isolation mode, so that isolation control between the power module and the control board card is realized, and the system control is more stable, safe and reliable.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a power module control panel.
Background
With the continuous enlargement of the scale of the power system and the continuous improvement of the voltage grade, the basic framework and the system operation mode of the power system become more and more complex, and the control requirement on each module in the system becomes higher and higher. The control of the power module in the traditional power control system has the defects of relatively low control speed, low control precision, single control function and control interface, poor reliability and the like.
The utility model discloses the main technical problem who solves lies in, provides a power module control panel, can effectively improve power module's control speed and control reliability, improves control accuracy to provide abundant control interface, make more accurate, reliable to power module's control.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a power module control board.
The utility model provides a power module control panel, including the integrated circuit board, be provided with the treater system on the integrated circuit board, with treater system electric connection start configuration circuit, power conversion module circuit, power module control circuit, temperature acquisition converting circuit, voltage acquisition converting circuit, current acquisition converting circuit and optical fiber communication transceiver circuit; wherein,
the processor system adopts an FPGA processor, and a 50Mhz crystal oscillator is arranged on the periphery of the FPGA processor to provide working pulses for the FPGA processor;
the starting configuration circuit adopts an SPI Flash memory and is used for starting logic configuration of the FPGA processor;
the power supply conversion module circuit is used for electrically connecting a power supply with the board card through two power supply inlets arranged on the board card and performing redundant power supply on the board card; the power supply conversion module circuit is used for filtering and voltage conversion processing of a power supply;
the power module control circuit controls a plurality of power modules simultaneously through the parallel logic of the FPGA processor;
the temperature acquisition conversion circuit adopts a voltage-frequency conversion circuit design to convert the temperature quantity of the power module;
the optical fiber communication transceiving circuit is used for carrying out instruction and data communication on the superior valve base control system by adopting optical signals, receiving the instruction of the superior valve base control system and reporting state information to the superior valve base control system;
the current acquisition and conversion circuit comprises 1 current acquisition interface for acquiring alternating current analog current signals, wherein the current acquisition interface is connected with a current transmission interface of the power module through a cable;
the voltage acquisition and conversion circuit comprises 1 voltage acquisition interface for acquiring high-voltage direct-current analog voltage signals, and the voltage acquisition interface is connected with the high-voltage potential of the power module through a cable.
Preferably, the board card is further provided with a JTAG interface electrically connected to the processor system, and the JTAG interface is connected to an external chip writer tool through a 10-core flat cable, and is used for program downloading and online debugging.
Preferably, the power conversion module circuit comprises a filter circuit and a voltage conversion circuit, and two power inlets are connected to an external direct-current power supply; the integrated circuit board passes through filter circuit filters the power, and the series connection is provided with the diode in order to right the integrated circuit board carries out the power and prevents connecing reverse protection, realizes giving the integrated circuit board power supply.
Preferably, a chip of the voltage conversion circuit adopts a DC-DC conversion and LDO combined conversion mode to meet the requirement of each path of power supply voltage of the board card, and a DC-DC conversion chip is adopted to realize 3.3V power supply at 3.3V voltage; and performing voltage conversion on the nuclear voltage of the FPGA processor by adopting an LDO (low dropout regulator) to provide the nuclear voltage.
Preferably, the control signals of the power module control circuit are controlled in a multipath manner in parallel, and the control signals are subjected to photoelectric isolation processing by adopting an optical coupler; connecting an interface of the control signal with a driving board card and a power module of the power module through a flat cable; the power module is connected with the driving board card and the driving module of the power module in a wire arrangement mode, and is simultaneously controlled through parallel logic of the FPGA processor, so that simultaneous and synchronous control of a plurality of power modules is realized, and return state signals of the power modules are detected.
Preferably, the temperature acquisition conversion circuit is provided with 2 ways temperature detection sampling interface, will the temperature detects the voltage signal interface connection of sampling interface through cable and the outside temperature sensor output of power module, gets into the pressure frequency conversion circuit on the integrated circuit board after, and the optoisolation is passed through again behind the temperature analog voltage signal conversion digital frequency signal, sends into the FPGA treater is handled.
Preferably, the optical fiber communication transceiver circuit comprises an optical fiber transmitting interface and an optical fiber receiving interface, the optical fiber transmitting interface and the optical fiber receiving interface are compatible with plastic optical fibers and glass optical fiber designs, the power module control board is connected with the superior valve base control system through two optical fiber jumpers on the board card, the optical fiber transmitting interface is connected to a receiving port of the superior valve base control system, and the optical fiber receiving interface is connected to a transmitting port of the superior valve base control system through the optical fiber jumpers.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The utility model discloses a power module control panel has realized simultaneously to a plurality of power module parallel control for a plurality of power modules can carry out the output of opening and shutting off in step, can support 6 power modules simultaneously, synchronous control at most;
(2) The utility model discloses a power module control panel realizes the state monitoring function of power module, can be with temperature semaphore, voltage semaphore and current semaphore on the power module, can real-time monitoring;
(3) The utility model discloses a power module control panel, optical signal are used for data transmission, have solved the problem of electromagnetic interference in the route transmission, have improved transmission rate for the communication has realized more stable, reliable quick transmission;
(4) The utility model discloses a power module control panel, to power module's photoelectric isolation mode for the control signal for realized isolation control between power module and control panel card, system control is more stable, safe and reliable.
It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention.
Other features of the present invention will become apparent from the following description.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic diagram of a block diagram of a power module control board according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The power module control panel in this application, mainly used is interconnected with higher level valve base control system to last in electric control system, is connected with power module's drive integrated circuit board and power module down:
the hardware board card main control chip of the control system adopts an FPGA as a core processor, and the processor can quickly realize logic control and logic parallel processing. The FPGA selects an Altera corporation MAX10 series chip as a core processor, and a 50Mhz crystal oscillator is arranged at the periphery of the FPGA to provide working pulses for the processor. The board card is provided with 2 high-precision, high-sampling-rate and high-performance ADC conversion chips so as to realize high-quality and high-speed acquisition and conversion of external analog signals. The board card is provided with a driving interface for connecting the driving board card of the power module, and the board is provided with a multipath optical communication interface for realizing communication and information interaction between the board card and other equipment.
Referring to fig. 1, an embodiment of the present invention provides a device including a board card, wherein the board card is provided with a processor system, and electrically connected to the processor system, a start configuration circuit, a power conversion module circuit, a power module control circuit, a temperature acquisition conversion circuit, a voltage acquisition conversion circuit, a current acquisition conversion circuit, and an optical fiber communication transceiver circuit; wherein,
the processor system adopts an FPGA processor to simultaneously and synchronously control 6 paths of the power module and process a control algorithm in parallel, has ultrafast control response, and is provided with a 50Mhz crystal oscillator at the periphery to provide working pulses for the FPGA processor;
the FPGA processor is used for realizing the Manchester encoding/decoding task of the optical fiber signal communication content by the optical fiber communication;
and receiving and analyzing a module control command transmitted by the upper-level valve-based control system, then distributing and executing the power module command, uploading the state monitored by the slave power module to the upper-level valve-based control system after Manchester encoding, and completing the acquisition and uploading of the direct-current voltage analog quantity of the direct-current bus capacitor in the whole system.
A starting configuration circuit adopts an SPI Flash memory and is used for starting logic configuration of an FPGA processor;
the power supply is connected to the power supply conversion module circuit through two power supply inlets arranged on the board card, redundant power supply is carried out on the board card, and filtering and voltage conversion processing are carried out on the power supply;
the power module control circuit controls a plurality of power modules simultaneously through parallel logics of the FPGA processor;
the temperature acquisition conversion circuit adopts a voltage-frequency conversion circuit design to convert the temperature quantity of the power module;
the optical fiber communication transceiving circuit is used for communicating instructions and data to the superior valve base control system by adopting optical signals, receiving the instructions of the superior valve base control system and reporting state information to the superior valve base control system;
the current acquisition and conversion circuit comprises 1 current acquisition interface for acquiring alternating current analog current signals, the input range of the alternating current analog current signals is +/-50mA, the current acquisition interfaces are connected with the current transmission interface of the power module through cables, the alternating current analog current signals enter a board card and then pass through a current-voltage conversion conditioning circuit, and then the converted voltage signals are subjected to digital isolation and conversion and then are converted into digital signals which are sent to an FPGA processor for processing.
The voltage acquisition and conversion circuit comprises 1 voltage acquisition interface for acquiring high-voltage direct-current analog voltage signals and supports the input voltage range of direct current of 0V-1.5 kV, the voltage acquisition interface is connected with the high-voltage potential of the power module through a cable, and the high-voltage direct-current analog voltage signals are input, pass through the direct-current voltage division conditioning circuit on the board card, are isolated and converted through the digital isolation device and then are sent to the FPGA processor for processing.
The voltage and current analog quantity on the rate module is converted into digital quantity through the ADC, and then enters the FPGA processor after passing through the digital isolator.
In a preferred embodiment, the board card is further provided with a JTAG interface electrically connected to the processor system, and the JTAG interface is connected to an external chip writer tool through a 10-core cable for program downloading and online debugging.
In a preferred embodiment, the power conversion module circuit comprises a filter circuit and a voltage conversion circuit, two power inlets are connected with an external direct current power supply, and the specification of the direct current power supply is 15V/1A so as to supply power to the board card; after the power supply enters the board card, the board card is filtered through a common-mode inductor and a capacitor, and a diode is connected in series to perform power supply reverse-connection prevention protection on the board card so as to supply power to the board card; after entering the board card, the power supply generates different power supply voltages of 5V, 3.3V and the like required by each module circuit through DC-DC conversion on the board.
In a preferred embodiment, a chip of the voltage conversion circuit adopts a DC-DC conversion and LDO combined conversion mode to meet the requirement of each path of power supply voltage of the board card, and the DC-DC conversion chip is adopted to realize 3.3V power supply on 3.3V voltage, so that the efficiency is high and the loss is small; the nuclear voltage of the FPGA processor is converted by adopting the LDO to provide the nuclear voltage, and the voltage ripple is small and the performance is good.
In a preferred embodiment, control signals of the power module control circuit are subjected to multi-path control in parallel, and the control signals are subjected to photoelectric isolation processing by adopting an optical coupler, so that the anti-interference performance of the control signals is enhanced; connecting an interface of the control signal with a driving board card and a power module of the power module through a flat cable; the power module is also connected with a driving board card and a driving module of the power module in a wire arrangement mode, and is simultaneously controlled through parallel logics of the FPGA processor, so that simultaneous and synchronous control of a plurality of power modules is realized, and return state signals of the power modules are detected. The control of 6 power modules can be simultaneously and synchronously supported; the voltage and current analog quantity on the power module is converted into digital quantity through the ADC, and then enters the FPGA processor after passing through the digital isolator.
In a preferred embodiment, the temperature acquisition and conversion circuit is provided with 2 temperature detection sampling interfaces, the temperature detection sampling interfaces are connected with a voltage signal interface output by a temperature sensor outside the power module through a cable, the temperature detection sampling interfaces enter a board card and then pass through a voltage-frequency conversion circuit on the board card, temperature analog voltage signals are converted into digital frequency signals, and then the digital frequency signals are subjected to optical isolation and then sent to the FPGA processor for processing.
In a preferred embodiment, the optical fiber communication transceiver circuit comprises an optical fiber transmitting interface and an optical fiber receiving interface, the optical fiber transmitting interface and the optical fiber receiving interface are compatible with plastic optical fibers and glass optical fiber designs, the power module control board is connected with the superior valve base control system through two optical fiber jumpers on the board card, the optical fiber transmitting interface is connected to a receiving port of the superior valve base control system, and the optical fiber receiving interface is connected to a transmitting port of the superior valve base control system through the optical fiber jumpers.
The optical fiber communication protocol adopts a serial asynchronous communication mode, the communication data updating period is 100us, and the communication speed is 10Mbit/s; the optical fiber data is interactively communicated, the communication rate can reach 20Mbps, manchester coding is adopted for information transmission between systems, the interference resistance of interactive communication is high, and the communication is stable and reliable;
the power module control board adopts optical signals to carry out instruction and data communication on a superior system, receives the instruction of the superior valve base control system and reports state information to the superior valve base control system, so that the information interaction among the systems effectively avoids the influence of electromagnetic interference on the communication, and the system communication is accurate and error-free; and the power module control board filters the acquired analog quantity through an SINC3 algorithm, so that the acquisition precision is high.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A power module control panel is characterized by comprising a board card, wherein a processor system is arranged on the board card, and a starting configuration circuit, a power supply conversion module circuit, a power module control circuit, a temperature acquisition conversion circuit, a voltage acquisition conversion circuit, a current acquisition conversion circuit and an optical fiber communication transceiving circuit are electrically connected with the processor system; wherein,
the processor system adopts an FPGA processor, and a 50Mhz crystal oscillator is arranged on the periphery of the FPGA processor to provide working pulses for the FPGA processor;
the starting configuration circuit adopts an SPIFlash memory and is used for starting logic configuration of the FPGA processor;
the power supply conversion module circuit is used for electrically connecting a power supply with the board card through two power supply inlets arranged on the board card and performing redundant power supply on the board card; the power supply conversion module circuit is used for filtering and voltage conversion processing of a power supply;
the power module control circuit controls a plurality of power modules simultaneously through the parallel logic of the FPGA processor;
the temperature acquisition conversion circuit adopts a voltage-frequency conversion circuit design to convert the temperature quantity of the power module;
the optical fiber communication transceiving circuit is used for carrying out instruction and data communication on the superior valve base control system by adopting optical signals, receiving the instruction of the superior valve base control system and reporting state information to the superior valve base control system;
the current acquisition and conversion circuit comprises 1 current acquisition interface for acquiring alternating current analog current signals, wherein the current acquisition interface is connected with a current transmission interface of the power module through a cable;
the voltage acquisition and conversion circuit comprises 1 voltage acquisition interface for acquiring high-voltage direct-current analog voltage signals, and the voltage acquisition interface is connected with the high-voltage potential of the power module through a cable.
2. The power module control board according to claim 1, wherein the board card is further provided with a JTAG interface electrically connected to the processor system, and the JTAG interface is connected to an external chip writer tool through a 10-core flat cable for program downloading and online debugging.
3. The power module control board according to claim 2, wherein the power conversion module circuit comprises a filter circuit and a voltage conversion circuit, and two power inlets are connected to an external dc power supply; the integrated circuit board passes through filter circuit filters the power, and the series connection is provided with the diode in order to right the integrated circuit board carries out the power and prevents connecing reverse protection, realizes giving the integrated circuit board power supply.
4. The power module control board according to claim 3, wherein a chip of the voltage conversion circuit adopts a combination of DC-DC conversion and LDO conversion to meet the requirement of each power supply voltage of the board, and adopts a DC-DC conversion chip to supply 3.3V power at a voltage of 3.3V; and performing voltage conversion on the nuclear voltage of the FPGA processor by adopting an LDO (low dropout regulator) to provide the nuclear voltage.
5. The power module control board according to claim 4, wherein the control signals of the power module control circuit are controlled in a multi-path manner in parallel, and the control signals are subjected to photoelectric isolation processing by using an optical coupler; connecting an interface of the control signal with a driving board card and a power module of the power module through a flat cable; the power module is connected with the driving board card and the driving module of the power module in a wire arrangement mode, and is simultaneously controlled through parallel logic of the FPGA processor, so that simultaneous and synchronous control of a plurality of power modules is realized, and return state signals of the power modules are detected.
6. The power module control board of claim 5, wherein the temperature acquisition and conversion circuit is provided with 2 temperature detection sampling interfaces, the temperature detection sampling interfaces are connected with voltage signal interfaces output by temperature sensors outside the power module through cables, the temperature detection sampling interfaces are connected with a voltage-frequency conversion circuit on the board card after entering the board card, temperature analog voltage signals are converted into digital frequency signals, and then the digital frequency signals are isolated through light and sent to the FPGA processor for processing.
7. The power module control board according to claim 6, wherein the optical fiber communication transceiver circuit comprises an optical fiber transmission interface and an optical fiber reception interface, the optical fiber transmission interface and the optical fiber reception interface are compatible with plastic optical fiber and glass optical fiber designs at the same time, the power module control board is connected with a superior valve base control system on the board card through two optical fiber jumpers, the optical fiber transmission interface is connected to a reception port of the superior valve base control system, and the optical fiber reception interface is connected to a transmission port of the superior valve base control system through the optical fiber jumpers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222383258.7U CN218585194U (en) | 2022-09-08 | 2022-09-08 | Power module control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222383258.7U CN218585194U (en) | 2022-09-08 | 2022-09-08 | Power module control panel |
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| CN218585194U true CN218585194U (en) | 2023-03-07 |
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| CN202222383258.7U Active CN218585194U (en) | 2022-09-08 | 2022-09-08 | Power module control panel |
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- 2022-09-08 CN CN202222383258.7U patent/CN218585194U/en active Active
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