Power secondary control protection device based on PowerVPX architecture

Abstract

The invention provides an electric power secondary control protection device based on a PowerVPX architecture, and a backboard comprises a power supply connector which is connected with a power supply bus; the first data connector is connected with the single-ended signal transmission bus; the second data connector is connected with the differential signal transmission bus; and the third data connector is connected with the high-speed signal transmission bus. The first data connector, the second data connector and the third data connector are arranged in the backboard, the single-ended signal transmission bus is used for transmitting single-ended signals, and the differential signal transmission bus is used for transmitting differential signals, so that signal transmission among functional board cards of the power secondary control protection device can better resist strong electromagnetic interference, and the reliability of the power secondary control protection device is improved. And based on the characteristic that the VPX bus can support a high-speed serial communication protocol, the third data connector is used for transmitting high-speed signals, so that the data transmission bandwidth of the backboard of the power secondary control protection device is improved, and the data exchange capability of the power secondary control protection device is improved.

Description

Technical Field

[0001] The present application relates to the field of electrical technology, and in particular to a power secondary control protection device with a PowerVPX architecture. Background Art

[0002] Primary power equipment refers to high-voltage electrical equipment directly used in the production, transmission and distribution of electric energy. Secondary power control and protection devices are auxiliary equipment for controlling, regulating and protecting primary power equipment.

[0003] Power secondary control protection devices usually have relay protection and control functions.

[0004] At present, the communication rate of the backplane of the power secondary control protection device is usually around 100Mbps. With the continuous improvement of communication bandwidth and the continuous improvement of requirements for real-time data processing performance, it is urgent to improve the communication rate of the backplane of the power secondary control protection device. Summary of the invention

[0005] The present application provides a power secondary control protection device and a backplane thereof with a PowerVPX architecture, which solves the problem of limited backplane transmission rate in power secondary control protection devices in the prior art.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, a backplane of a PowerVPX architecture is provided, comprising:

[0008] A power connector, connected to a power bus, for transmitting a power signal;

[0009] A first data connector, connected to a single-ended signal transmission bus, for transmitting a single-ended signal;

[0010] A second data connector connected to the differential signal transmission bus for transmitting differential signals;

[0011] The third data connector is connected to the high-speed signal transmission bus and is used for transmitting high-speed signals.

[0012] In the embodiment of the present application, according to the characteristics of the secondary power control and protection device, a first data connector, a second data connector and a third data connector can be set in the backplane based on the PowerVPX architecture, and a single-ended signal transmission bus is used to transmit a single-ended signal, and a differential signal is used to transmit a differential signal, so that the signal transmission between the functional boards of the secondary power control and protection device can better resist strong electromagnetic interference, and based on the characteristic of the VPX bus that can support high-speed serial communication protocols, the third data connector is used to transmit high-speed signals, so that the data transmission bandwidth of the backplane of the secondary power control and protection device is improved, thereby solving the problem of data bandwidth limitation between the functional boards in the current secondary power control and protection device, improving the data exchange capability of the secondary power control and protection device, and enhancing the data throughput.

[0013] In an implementation of the first aspect, the backplane includes a power board slot and a universal board slot;

[0014] The power board slot is used to plug in the power board;

[0015] The universal board card slot is used for inserting an input and output universal board card.

[0016] The universal board includes at least one of an input board, an output board, and a communication board.

[0017] In the embodiment of the present application, by setting up a universal board slot, when designing boards other than the power board, each functional board can be designed according to a unified board specification, thereby improving the compatibility and scalability of each functional board of the power secondary control and protection device.

[0018] In an implementation of the first aspect, a distribution interval of a plurality of the universal board slots is greater than a preset interference distance.

[0019] In the embodiment of the present application, when the backplane is laid out, the distribution intervals between the data board slots are set to be larger, so as to reduce the coupling between the various planes as much as possible.

[0020] In a second aspect, a power secondary control protection device is provided, the power secondary control protection device comprising various functional boards and a backplane as described in any one of the first aspects;

[0021] Each of the functional boards is plugged into the backplane, and power signals, single-ended signals, differential signals and high-speed signals between the functional boards are transmitted through the backplane.

[0022] In the embodiment of the present application, the electric power secondary control and protection device utilizes the above-mentioned backplane. By plugging the functional board card into the above-mentioned backplane, the functional board card can be selected according to actual needs and plugged into the above-mentioned backplane, thereby realizing modularization, generalization, and plug-and-play of the board card. The single-ended signal transmission bus can be used to transmit the single-ended signal between each functional board card, and the differential signal transmission bus can be used to transmit the differential signal between each functional board card, so that the signal transmission between each functional board card of the electric power secondary control and protection device can better resist strong electromagnetic interference, and based on the characteristic that the VPX bus can support high-speed serial communication protocols, the third data connector is used to transmit high-speed signals, so that the data transmission bandwidth between each functional board card of the electric power secondary control and protection device is improved, thereby solving the problem of data bandwidth limitation between each functional board card in the current electric power secondary control and protection device, improving the data exchange capability of the electric power secondary control and protection device, and enhancing the data throughput.

[0023] In an implementation of the second aspect, the function board includes a power board;

[0024] The power board is connected to the power connector and is used to generate and output a power signal.

[0025] In an implementation of the second aspect, the function board includes at least two power board; each of the power board is independently connected to the power connector.

[0026] The redundant design of the power board makes the power supply of the power secondary protection control device more reliable.

[0027] In an implementation of the second aspect, the functional board also includes a control management board and an input and output general board;

[0028] The control management board is connected to the input and output universal board via a first data connector, and single-ended signals are transmitted via a single-ended signal transmission bus.

[0029] The single-ended signal transmission bus includes a CAN bus.

[0030] In the embodiment of the present application, the control management board monitors and controls other boards of the power secondary control and protection device through the above-mentioned single-ended signal, thereby realizing inter-board monitoring and inter-board maintenance.

[0031] In an implementation manner of the second aspect, the control management board is connected to the input and output universal board via a second data connector, and the differential signal is transmitted via a differential signal transmission bus.

[0032] The differential signal transmission bus includes a low voltage differential signal bus.

[0033] In an implementation of the second aspect, the input and output universal board includes a communication board;

[0034] The control management board is connected to the communication board via a third data connector, and high-speed signals are transmitted via a high-speed signal transmission bus.

[0035] The high-speed signal transmission bus includes a high-speed serial communication bus.

[0036] In the embodiment of the present application, by constructing a high-speed signal transmission channel and realizing the separation of the data channel and the control channel, the data transmission bandwidth of the secondary power control and protection device can be improved, and the data transmission efficiency and data throughput of the secondary power control and protection device can be improved.

[0037] In an implementation of the second aspect, the control management board includes a first control module and a second control module;

[0038] The first control module is used to perform task management, data transmission management and data communication processing according to the differential signal and the high-speed signal;

[0039] The second control module is used to monitor the board status according to the single-ended signal.

[0040] In the embodiment of the present application, the data processing efficiency of the control management board is improved through the design of dual control modules.

[0041] In an implementation of the second aspect, the input-output universal board includes a data transceiver processing module and a board parameter monitoring module;

[0042] The data transceiver processing module is used for data transceiver;

[0043] The board parameter monitoring module is used to obtain the working parameters of the input and output universal board.

[0044] In the embodiment of the present application, the data processing efficiency of the input and output universal board is improved through a dual module design.

[0045] In an implementation of the second aspect, the power secondary control protection device also includes a chassis; the backplane and the functional board are arranged in the chassis.

[0046] The chassis includes a 4U chassis.

[0047] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a schematic diagram of a backplane based on the PowerVPX architecture provided in an embodiment of the present application;

[0049] Figure 2 It is a structural schematic diagram of the power secondary control protection device provided in an embodiment of the present application;

[0050] Figure 3 It is a structural schematic diagram of a power secondary control protection device provided in an embodiment of the present application;

[0051] Figure 4 is a structural schematic diagram of a power secondary control protection device provided in another embodiment of the present application;

[0052] Figure 5 It is a schematic diagram of the data transmission architecture of the control management board and the input and output general board of the power secondary control and protection device provided in the embodiment of the present application;

[0053] Figure 6 It is a schematic diagram of signal transmission between each functional board and each bus in the power secondary control protection device provided in an embodiment of the present application;

[0054] Figure 7 It is a schematic diagram of the data transmission architecture of a control management board and an input and output general board of a power secondary control and protection device provided in another embodiment of the present application. DETAILED DESCRIPTION

[0055] It is only used to more clearly illustrate the technical solution of the present application and is therefore only an example and cannot be used to limit the scope of protection of the present application.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0057] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0058] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0059] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0060] Primary power equipment refers to high-voltage electrical equipment directly used in the production, transmission and distribution of electric energy. Secondary power control and protection devices are auxiliary equipment for controlling, regulating and protecting primary power equipment.

[0061] Power secondary control protection devices usually have relay protection and control functions.

[0062] However, the current communication rate of the backplane of the power secondary control protection device is usually around 100Mbps. With the continuous improvement of communication bandwidth and the continuous improvement of requirements for real-time data processing performance, it is urgent to increase the communication rate of the backplane of the power secondary control protection device.

[0063] The VPX bus standard is a new generation of high-speed serial bus standards proposed by the VME International Trade Association (VITA) based on the VME bus. The OpenVPX system standard is proposed on the basis of the VPX bus. The OpenVPX system standard supports the VITA46 standard specification and also supports the latest high-speed serial bus technologies, such as RapidIO, PCI-Express, and 10 Gigabit Ethernet. The OpenVPX system standard is mainly used in computer embedded systems, providing access standardization for computer embedded systems and supporting higher backplane rates.

[0064] In order to improve the transmission rate of the backplane of the power secondary control and protection device, the above-mentioned OpenVPX system standard can be considered to be applied in the backplane of the power secondary control and protection device. However, since the power secondary control and protection device is mainly used in substations, its application site has various electromagnetic interferences, such as transient electromagnetic interference generated by the separation / combination of high-voltage electrical equipment, transient electromagnetic interference generated by short-circuit faults, and magnetic fields, radiation fields, and electrostatic fields around electrical equipment. It is precisely because of the various electromagnetic interferences in the application of power secondary control and protection devices that the OpenVPX system standard cannot be directly adopted when considering the interface standardization of power secondary control and protection devices.

[0065] Based on the above considerations, in order to improve the transmission rate of the backplane of the secondary power control and protection device, the embodiment of the present application proposes a PowerVPX-based backplane and a secondary power control and protection device suitable for the secondary power control and protection device based on the existing OpenVPX system standard; by setting a power connector, a first data connector, a second data connector and a third data connector in the above-mentioned backplane based on the PowerVPX architecture; using a single-ended signal transmission bus to transmit a single-ended signal, and using a differential signal transmission bus to transmit a differential signal, so that the signal transmission between the various functional boards of the secondary power control and protection device can better resist strong electromagnetic interference, and based on the characteristics of the VPX bus that can support high-speed serial communication protocols, the third data connector is used to transmit high-speed signals, so that the data transmission bandwidth of the backplane of the secondary power control and protection device is improved, and the problem of data bandwidth limitation between the various functional boards in the current secondary power control and protection device is solved, the data exchange capability of the secondary power control and protection device is improved, and the data throughput is enhanced.

[0066] The following is an introduction to the power secondary control protection device and its backplane based on the PowerVPX architecture provided in the embodiments of the present application with specific examples.

[0067] See also Figure 1 , Figure 1 Schematic diagram of a backplane based on the PowerVPX architecture provided in an embodiment of the present application. Figure 1 As shown, the backplane 10 includes a power connector 11 , a first data connector 12 , a second data connector 13 and a third data connector 14 .

[0068] Among them, the power connector 11 is connected to the power bus 21 for transmitting the power signal; the first data connector 12 is connected to the single-ended signal transmission bus 22 for transmitting the single-ended signal; the second data connector 13 is connected to the differential signal transmission bus 23 for transmitting the differential signal; the third data connector 14 is connected to the high-speed signal transmission bus 24 for transmitting the high-speed signal.

[0069] It can be understood that in the embodiment of the present application, the above-mentioned power connector provides a transmission channel for transmitting power signals for each functional board card, the first data connector provides a transmission channel for the transmission of single-ended signals between each functional board card, the second data connector provides a transmission channel for the transmission of differential signals between each functional board card, and the third data connector provides a transmission channel for the transmission of high-speed signals between each functional board card.

[0070] In the embodiment of the present application, the signals transmitted on the backplane based on the PowerVPX architecture are divided into four types of signals, namely the power signal, the high-speed signal, the single-ended signal and the differential signal.

[0071] In an embodiment of the present application, the power supply signal is the power supply voltage required for the operation of each functional board of the above-mentioned power secondary control and protection device. For example, it can be 48V, 24V, 12V, 5V, etc. The above-mentioned high-speed signal is a data signal of real-time data with a transmission rate of 1Gbps or more transmitted between the above-mentioned power secondary control and protection device and the control background system (such as a human-computer interaction board) and other devices. The above-mentioned single-ended signal is a monitoring signal, slot number, alarm signal, locking signal and other signals between the internal control management board and other boards of the above-mentioned power secondary control and protection device. The above-mentioned differential signal refers to the control information between the internal control management board and other boards of the power secondary control and protection device, such as differential data with a transmission rate of 100Mbps to 500Mbps.

[0072] In the embodiment of the present application, the functions of the secondary power control and protection device can be realized by inserting different universal boards into the backplane 10. For example, a power board can be inserted into the backplane 10, and the power board provides the working voltage required by the other functional boards of the secondary power control and protection device. For another example, by inserting a control management board, an input board, and an output board, the input acquisition and output control of the secondary power equipment can be realized. For another example, by inserting a control management board and a communication board, the real-time data interaction between the secondary power control and protection device and the control background system can be realized.

[0073] From the above, it can be seen that in the embodiment of the present application, according to the characteristics of the secondary power control and protection device, the first data connector, the second data connector and the third data connector can be set in the backplane based on the PowerVPX architecture, and the single-ended signal transmission bus is used to transmit the single-ended signal, and the differential signal is transmitted by the differential signal transmission bus, so that the signal transmission between the functional boards of the secondary power control and protection device can better resist strong electromagnetic interference, and based on the characteristic that the VPX bus can support high-speed serial communication protocols, the third data connector is used to transmit high-speed signals, so that the data transmission bandwidth of the backplane of the secondary power control and protection device can be improved, thereby solving the problem of data bandwidth limitation between the functional boards in the current secondary power control and protection device, improving the data exchange capability of the secondary power control and protection device, and enhancing the data throughput.

[0074] In one embodiment of the present application, the backplane 10 includes a power board slot and a universal board slot.

[0075] The power board slot is used to plug in the power board, and the universal board slot is used to plug in the input / output universal board (I / O universal board).

[0076] In a specific application, the universal board includes at least one of an input board, an output board, and a communication board.

[0077] It should be noted that multiple power board slots and multiple input and output universal board slots can be set on the above-mentioned backplane 10. When configuring the secondary power control and protection device, the user can select the type of board to be inserted into the backplane 10, for example, a power board, a control management board, an input board, and an output board, etc., and then insert the power board into the power board slot, and insert the control management board, the input board, and the output board into the universal board slots respectively.

[0078] By setting a universal board slot, when designing boards other than the power board, each functional board can be designed according to a unified board specification, thereby improving the compatibility and scalability of each functional board of the power secondary control protection device.

[0079] In one embodiment of the present application, the distribution interval of the plurality of universal card slots in the backplane 10 is greater than a preset interval distance.

[0080] The preset interference distance is a slot spacing that can reduce coupling between various planes, and the preset interference distance can be set according to the application site.

[0081] When the backplane is laid out, the distribution intervals between the data board slots are set larger to minimize the coupling between the planes.

[0082] Based on the backplane based on the PowerVPX architecture provided in the above embodiments, the embodiments of the present application also provide a power secondary control protection device.

[0083] See also Figure 2 , Figure 2 This is a schematic diagram of the structure of the power secondary control protection device provided in the embodiment of the present application. Figure 2 As shown, the above-mentioned power secondary control protection device 2 may include various functional boards 30 and the above-mentioned backplane 10 .

[0084] The above-mentioned functional boards 30 are plugged into the above-mentioned backplane 10 .

[0085] The power supply signal, single-ended signal, differential signal and high-speed signal are transmitted between the functional boards 30 through the backplane 10 .

[0086] Please combine Figure 1 In a specific application, it can be known from the relevant description of the backplane 10 that the backplane 10 provides a power connector 11 , a first data connector 12 , a second data connector 13 and a third data connector 14 .

[0087] Each functional board 30 is plugged into the above-mentioned backplane 10, and power signals can be transmitted based on the power connector 11 provided by the backplane 10, single-ended signals can be transmitted between each functional board through the first data connector 12, differential signals can be transmitted between each functional board through the second data connector 13, and high-speed signals can be transmitted between each functional board through the third data connector 14.

[0088] In the embodiment of the present application, the above-mentioned functional board refers to a board used to implement a secondary power protection device, for example, it may include a power board, a control management board, an input board, an output board, a communication board, etc.

[0089] In the embodiment of the present application, the above-mentioned functional boards 30 can be configured according to the actual functions of the power secondary control and protection device 2.

[0090] In the embodiment of the present application, the electric power secondary control and protection device utilizes the above-mentioned backplane. By plugging the functional board card into the above-mentioned backplane, the functional board card can be selected according to actual needs and plugged into the above-mentioned backplane, thereby realizing modularization, generalization, and plug-and-play of the board card. The single-ended signal transmission bus can be used to transmit the single-ended signal between each functional board card, and the differential signal transmission bus can be used to transmit the differential signal between each functional board card, so that the signal transmission between each functional board card of the electric power secondary control and protection device can better resist strong electromagnetic interference, and based on the characteristic that the VPX bus can support high-speed serial communication protocols, the third data connector is used to transmit high-speed signals, so that the data transmission bandwidth between each functional board card of the electric power secondary control and protection device is improved, thereby solving the problem of data bandwidth limitation between each functional board card in the current electric power secondary control and protection device, improving the data exchange capability of the electric power secondary control and protection device, and enhancing the data throughput.

[0091] In one embodiment, see Figure 3 , Figure 3 This is a schematic diagram of the architecture of the power secondary control protection device provided in the embodiment of the present application. Figure 3 As shown, the functional board 30 includes a power board 31. The power board 31 is used to generate and output a power signal.

[0092] The power signal may be the working voltage required by each other functional board, such as 48V, 24V, 12V, 5V, etc. That is, the power board generates working voltages such as 48V, 24V, 12V, 5V, etc., and then outputs working voltages such as 48V, 24V, 12V, 5V, etc. through the power connector 11 provided by the backplane 10 to power the control management board and other functional boards.

[0093] In another embodiment of the present application, Figure 4 As shown, the functional board 30 includes at least two power board cards 31 ( Figure 4 In the figure, the function board includes two power board 31 as an example).

[0094] In a specific application, one of the at least two power supply boards 31 mentioned above can be used as the main power supply board for the secondary power control and protection device, and the other power supply boards 31 can be used as auxiliary power supply boards; or, different power supply boards 31 can output power signals with different voltage values ​​to power different functional boards.

[0095] In the embodiment of the present application, the power supply of the secondary power protection control device is made more reliable through the redundant design of the power board.

[0096] In one embodiment, see Figure 3 and Figure 5 , Figure 5 A schematic diagram of the data transmission architecture of the control management board and the input and output general board of the power secondary control protection device provided in the embodiment of the present application. Figure 5 As shown, the function board 30 further includes a control management board 32 and an input and output general board 33 .

[0097] The control management board 32 is connected to the input / output universal board 33 via the first data connector 11 , and transmits single-ended signals via the single-ended signal transmission bus 22 .

[0098] In this embodiment, the single-ended signal includes but is not limited to a monitoring signal, a slot signal, an alarm signal, and a locking signal between the control management board 32 and the input and output general board 33 .

[0099] Exemplarily, when the above-mentioned input and output universal board 33 includes a communication board, an input board and an output board, the above-mentioned control management board 33 transmits single-ended signals such as monitoring signals, slot signals, alarm signals and locking signals with the communication board, the input board and the output board respectively.

[0100] In specific applications, the above-mentioned communication board is used to interact with the control background to receive or send high-speed signals; the above-mentioned input board is used to determine the input quantity, such as the opening and closing position of the knife switch / the switching state of the switch; the above-mentioned output board is used to output the output contacts through the relay to realize the opening / closing of the knife switch.

[0101] It should be noted that the monitoring signal is a signal required for the control management board 32 to monitor the working status of each input and output universal board 33 , and may be, for example, a voltage signal and a temperature signal of each input and output universal board 33 .

[0102] In an embodiment of the present application, the above-mentioned control management board 32 is also connected to the power board 31 through the above-mentioned first data connector 11, and the above-mentioned control management board 32 also transmits single-ended signals such as monitoring signals, slot signals, alarm signals, etc. between the above-mentioned power board 31 through the above-mentioned discrete data transmission bus 22.

[0103] In some embodiments, the single-ended signal transmission bus includes a CAN bus.

[0104] Among them, the CAN bus is arranged through the backplane 10, and the CAN bus is used to realize the transmission of single-ended signals, which can improve the reliability of the power secondary control protection device in the strong electromagnetic interference scenario.

[0105] It should be noted that the above-mentioned single-ended signal transmission bus can also include other data buses, such as RS485 bus, that is, the above-mentioned control management board 32 can also realize single-ended signal transmission with the above-mentioned power board 31 and the input and output general board 33 respectively through the above-mentioned RS485 bus.

[0106] In the embodiment of the present application, the control management board monitors and controls other boards of the power secondary control and protection device through the above-mentioned single-ended signal, thereby realizing inter-board monitoring and inter-board maintenance.

[0107] Please continue reading Figure 3 and Figure 5 In one embodiment, the control management board 32 is connected to the input and output universal board 33 via the second data connector 12 , and the differential signal is transmitted via the differential signal transmission bus 23 .

[0108] Among them, the differential signal can be transmitted through a pair of differential signal lines. The differential signal can be the control information between the internal control management board and the input and output general board of the power secondary control and protection device. The above control information is differential data with a transmission rate of 100Mbps to 500Mbps.

[0109] In some application scenarios, the control management board 32 is also used to perform upgrade control on each input and output board.

[0110] That is, the control management board 32 transmits the upgrade data (also a differential signal) for program upgrade of the communication board, input board, and output board through the differential data transmission bus 23, thereby realizing the upgrade control of other functional boards.

[0111] The control management board 32 and the power board 31 are also connected via the second data connector 12 , and the control management board 32 also transmits control data with the power board 31 via the differential data transmission bus 23 .

[0112] In some application scenarios, the differential data transmission bus 23 is connected to the communication board, the input board, and the output board respectively through a low-voltage differential signal (LVDS) bus.

[0113] It should be noted that the differential data bus 23 may also include other data buses, such as an M-LVDS data bus.

[0114] Please continue reading Figure 3 and Figure 5 In one embodiment, the above-mentioned input and output universal board 33 includes a communication board 33a

[0115] The control management board 32 is connected to the communication board 33 a via the third data connector 14 , and transmits high-speed signals via the high-speed signal transmission bus 24 .

[0116] Among them, high-speed signals refer to data signals of real-time data with a transmission rate of 1Gbps or above transmitted between the above-mentioned power secondary control and protection devices and control background systems and other equipment.

[0117] On the data plane, high-speed signal transmission is achieved through the communication board 33a, realizing data interaction between the background system and the control management board of the power secondary control and protection device.

[0118] In some application scenarios, the communication board may be an optical communication board.

[0119] In a specific application, the high-speed signal transmission bus 24 may include a high-speed serial transmission (Gigabit Transceiver, GTX).

[0120] It should be noted that the high-speed signal transmission bus 24 may also include other buses, such as a RapidIO high-speed serial bus.

[0121] In the embodiment of the present application, by constructing a high-speed signal transmission channel and realizing the separation of the data channel and the control channel, the data transmission bandwidth of the secondary power control and protection device can be improved, and the data transmission efficiency and data throughput of the secondary power control and protection device can be improved.

[0122] Based on the above, the data transmission process between the functional boards of the power secondary control protection device provided in the embodiment of the present application is described below. Figure 6 In this example, taking the functional boards of the above-mentioned power secondary control and protection device including the first power board, the second power board, the control management board 32, and 8 input and output general boards 33 as an example, the data transmission relationship between the various functional boards in the power secondary equipment provided in the embodiment of the present application is illustrated.

[0123] like Figure 6 As shown, the first power board and the second power board generate power signals, and output the power signals to the control management board 32 and each input and output universal board 33 through the power bus, respectively, to supply power to the control management board 32 and each input and output universal board 33. The control management board 32 transmits single-ended signals to each input and output universal board 33 through the CAN bus. The control management board 32 transmits differential signals to each input and output universal board 33 through the LDVS bus. The control management board 32 transmits high-speed signals to each input and output universal board 33 through the RapidIO bus.

[0124] As can be seen from the above, the power secondary control protection device provided in the embodiment of the present application, based on the above content, the data transmission process between the various functional boards of the power secondary control protection device provided in the embodiment of the present application is described below. Figure 6 In this example, taking the functional boards of the above-mentioned power secondary control and protection device including a first power board, a second power board, a control management board, and 12 input and output general boards as an example, the data transmission relationship between each functional board in the power secondary equipment provided in the embodiment of the present application is illustrated.

[0125] like Figure 6 As shown, the first power board and the second power board generate power signals, and output the power signals to the control management board and each input and output general board through the power bus, respectively, to power the control management board and each input and output general board. The control management board transmits single-ended signals to each input and output general board through the CAN bus. The control management board transmits LDVS differential data to each input and output general board. The control management board transmits SRIO data to each input and output general board.

[0126] In one embodiment, see Figure 7 The control management board 22 includes a first control module 221 and a second control module 222 .

[0127] The first control module 221 is used for performing task management, data transmission management and data communication processing according to differential signals and high-speed signals.

[0128] The second control module 222 is used to monitor the board status according to the single-ended signal.

[0129] Exemplarily, the first control module 221 may include a first processing chip, which may be a system on chip (SOC) capable of performing tasks management, data transmission management, and data communication processing operations.

[0130] In a specific application, the second control module 222 may include a baseboard management controller (BMC), through which functions such as board temperature monitoring, power monitoring, and status monitoring are implemented.

[0131] It should be noted that the specific process of the above-mentioned task management, data transmission management and data communication processing can be determined according to the actual application scenario of the power secondary control protection device. For different situations, the first control module can output different control signals to realize the function of the power secondary control protection device. For example, when it is necessary to control the opening / closing of the knife switch, the control signal is output to the output board, and the output board outputs the output contact through the relay to realize the opening / closing of the knife switch.

[0132] In the embodiment of the present application, the data processing efficiency of the control management board is improved through the design of dual control modules.

[0133] In one embodiment, please refer to Figure 7 The above-mentioned input and output universal board 33 includes 331 and a board parameter monitoring module 332.

[0134] The data transceiving processing module 331 is used for data transceiving. The board parameter monitoring module 332 is used for obtaining the working parameters of the input and output universal board 33 .

[0135] The above operating parameters include but are not limited to operating voltage, operating temperature, etc.

[0136] In a specific application, the data transceiver processing module 331 may include a field programmable gate array (FPGA), and data transceiver is realized through the field programmable gate array.

[0137] In a specific application, the board parameter monitoring module 332 may include a baseboard management controller (BMC), through which the board working parameters are acquired.

[0138] In the embodiment of the present application, the data processing efficiency of the input and output universal board is improved through a dual module design.

[0139] In one embodiment, the power secondary control protection device 2 further includes a chassis; the backplane is disposed in the chassis.

[0140] In a specific application, the above-mentioned chassis includes but is not limited to a 3U chassis, a 4U chassis and a 6U chassis.

[0141] In one embodiment, the above-mentioned power secondary control protection device includes a 4U chassis, and the above-mentioned 4U chassis is a chassis with a width*height*depth of 482 (mm)*177 (mm)*291 (mm).

[0142] In the several embodiments provided in the present application, it should be understood that the disclosed devices and equipment can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0143] Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A backplane, characterized in that: include: A power connector, connected to a power bus, for transmitting a power signal; A first data connector, connected to a single-ended signal transmission bus, for transmitting a single-ended signal; A second data connector connected to the differential signal transmission bus for transmitting differential signals; The third data connector is connected to the high-speed signal transmission bus and is used for transmitting high-speed signals.

2. The back plate according to claim 1, characterized in that: The backplane includes a power board slot and a universal board slot; The power board slot is used to plug in the power board; The universal board card slot is used for inserting an input and output universal board card.

3. The back plate according to claim 2, characterized in that: The universal board includes at least one of an input board, an output board, and a communication board.

4. The back plate according to claim 2 or 3, characterized in that: The distribution interval of a plurality of the universal board slots is greater than a preset interference distance.

5. A power secondary control protection device, characterized in that: The power secondary control protection device comprises various functional boards and a backplane as claimed in any one of claims 1 to 4; Each of the functional boards is plugged into the backplane, and power signals, single-ended signals, differential signals and high-speed signals between the functional boards are transmitted through the backplane.

6. The power secondary control protection device according to claim 5, characterized in that: The functional board includes a power board; The power board is connected to the power connector and is used to generate and output a power signal.

7. The power secondary control protection device according to claim 5, characterized in that: The functional board includes at least two power supply boards; Each of the power boards is independently connected to the power connector.

8. The power secondary control protection device according to any one of claims 5 to 7, characterized in that: The functional boards also include a control management board and an input and output general board; The control management board is connected to the input and output universal board via a first data connector, and single-ended signals are transmitted via a single-ended signal transmission bus.

9. The power secondary control protection device according to claim 8, characterized in that: The single-ended signal transmission bus includes a CAN bus.

10. The power secondary control protection device according to claim 8, characterized in that: The control management board is connected to the input and output universal board via a second data connector, and differential signals are transmitted via a differential signal transmission bus.

11. The power secondary control protection device according to claim 10, characterized in that: The differential signal transmission bus includes a low voltage differential signal bus.

12. The power secondary control protection device according to claim 8, characterized in that: The input and output universal board includes a communication board; The control management board is connected to the communication board via a third data connector, and high-speed signals are transmitted via a high-speed signal transmission bus.

13. The power secondary control protection device according to claim 12, characterized in that: The high-speed signal transmission bus includes a high-speed serial communication bus.

14. The power secondary control protection device according to any one of claims 8 to 13, characterized in that: The control management board includes a first control module and a second control module; The first control module is used to perform task management, data transmission management and data communication processing according to the differential signal and the high-speed signal; The second control module is used to monitor the board status according to the single-ended signal.

15. The power secondary control protection device according to claim 14, characterized in that: The input and output universal board includes a data transceiver processing module and a board parameter monitoring module; The data transceiver processing module is used for data transceiver; The board parameter monitoring module is used to obtain the working parameters of the input and output universal board.

16. The power secondary control protection device according to any one of claims 5 to 15, characterized in that: The power secondary control protection device also includes a chassis; The backplane and the functional board are arranged in the chassis.

17. The power secondary control protection device according to claim 16, characterized in that: The chassis includes a 4U chassis.

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