Electric-power secondary control protection apparatus based on powervpx architecture, and electric-power secondary device based on powervpx architecture

Abstract

Provided in the present application are an electric-power secondary control protection apparatus based on a PowerVPX architecture, and an electric-power secondary device based on a PowerVPX architecture. A backplane of the electric-power secondary control protection apparatus comprises: a power source connector, which is connected to a power source bus; a first data connector, which is connected to a single-end signal transmission bus; a second data connector, which is connected to a differential signal transmission bus; and a third data connector, which is connected to a high-speed signal transmission bus. A first data connector, a second data connector and a third data connector are provided inside a backplane, such that the data transmission bandwidth of the backplane of an electric-power secondary control protection apparatus is improved, thereby improving the data exchange capability of the electric-power secondary control protection apparatus. An electric-power secondary device based on a PowerVPX architecture is further provided, wherein the PowerVPX architecture comprises five planes, i.e., a power source plane, an electrical plane, a data plane, a protection plane and a control plane, which effectively unifies the connection standards between electric-power secondary devices, thereby improving the compatibility and expandability of the electric-power secondary devices.

Description

A power secondary control protection device and power secondary equipment based on PowerVPX architecture

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on July 25, 2023, with application number 202310922061.2, invention name “A power secondary control and protection device based on PowerVPX architecture”, and application number 202310925541.4, invention name “A power secondary equipment based on PowerVPX system architecture”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of electrical technology, and in particular to a power secondary control and protection device and power secondary equipment based on a PowerVPX architecture. Background Art

[0003] Primary power equipment refers to high-voltage electrical equipment used directly in the production, transmission, and distribution of electrical energy. Secondary power control and protection devices are auxiliary equipment used to control, regulate, and protect primary power equipment.

[0004] Power secondary control protection devices usually have relay protection and control functions.

[0005] Since all types of interfaces in power secondary equipment are defined by the manufacturers themselves, there are no unified connectors and interfaces between power secondary equipment produced by different manufacturers, resulting in poor compatibility and scalability.

[0006] At present, the communication rate of the backplane of the power secondary control and protection device is usually around 100Mbps. With the continuous improvement of communication bandwidth and the continuous improvement of real-time data processing performance requirements, it is urgent to increase the communication rate of the backplane of the power secondary control and protection device. Technical issues

[0007] The present application provides a power secondary control and protection device with a PowerVPX architecture and its backplane, which solves the problem of limited backplane transmission rate in the power secondary control and protection device in the prior art. The present application also provides a power secondary equipment and its PowerVPX system architecture, which solves the problem of poor compatibility and scalability in the power secondary equipment in the prior art. Technical Solutions

[0008] To achieve the above objectives, this application adopts the following technical solutions:

[0009] In a first aspect, a backplane of a PowerVPX architecture is provided, comprising:

[0010] A power connector, connected to the power bus, used to transmit power signals;

[0011] A first data connector, connected to a single-ended signal transmission bus, for transmitting a single-ended signal;

[0012] a second data connector connected to the differential signal transmission bus for transmitting differential signals;

[0013] The third data connector is connected to the high-speed signal transmission bus and is used to transmit high-speed signals.

[0014] In an 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 transmission bus is used 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 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 can be improved, thereby solving the problem of data bandwidth limitation between the various 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 data throughput.

[0015] In an implementation of the first aspect, the backplane includes a power board slot and a universal board slot;

[0016] The power board slot is used to plug in the power board;

[0017] The universal board slot is used for inserting an input and output universal board.

[0018] The universal board includes at least one of an input board, an output board, and a communication board.

[0019] 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.

[0020] In an implementation of the first aspect, a distribution interval between the plurality of universal board slots is greater than a preset interference distance.

[0021] 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, which can reduce the coupling between the various planes as much as possible.

[0022] In a second aspect, a power secondary control and protection device is provided, the power secondary control and protection device comprising various functional boards and a backplane as described in any one of the first aspects;

[0023] Each of the functional boards is plugged into the backplane, and power signals, single-ended signals, differential signals and high-speed signals are transmitted between the functional boards through the backplane.

[0024] In the embodiment of the present application, the 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 the modularization, universalization, 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 power secondary 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 for high-speed signal transmission, so that the data transmission bandwidth between each functional board card of the power secondary control and protection device is improved, solving the problem of data bandwidth limitation between each functional board card in the current power secondary control and protection device, improving the data exchange capability of the power secondary control and protection device, and enhancing data throughput.

[0025] In an implementation of the second aspect, the function board includes a power board;

[0026] The power board is connected to the power connector and is used to generate and output a power signal.

[0027] 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.

[0028] The redundant design of the power supply board makes the power supply of the power secondary protection control device more reliable.

[0029] In an implementation of the second aspect, the functional board further includes a control management board and an input and output general board;

[0030] 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.

[0031] The single-ended signal transmission bus includes a CAN bus.

[0032] 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.

[0033] In an implementation 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.

[0034] The differential signal transmission bus includes a low voltage differential signal bus.

[0035] In an implementation of the second aspect, the input and output universal board includes a communication board;

[0036] 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.

[0037] The high-speed signal transmission bus includes a high-speed serial communication bus.

[0038] 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 power secondary control protection device can be improved, and the data transmission efficiency and data throughput of the power secondary control protection device can be improved.

[0039] In an implementation of the second aspect, the control management board includes a first control module and a second control module;

[0040] 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;

[0041] The second control module is used to monitor the board status according to the single-ended signal.

[0042] 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.

[0043] In an implementation of the second aspect, the input and output universal board includes a data transceiver processing module and a board parameter monitoring module;

[0044] The data transceiver processing module is used for data transceiver;

[0045] The board parameter monitoring module is used to obtain the operating parameters of the input and output universal board.

[0046] 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.

[0047] In an implementation of the second aspect, the power secondary control and protection device further includes a chassis; the backplane and the functional board are arranged in the chassis.

[0048] The chassis includes a 4U chassis.

[0049] In a third aspect, a PowerVPX system architecture is provided for application to power secondary equipment. The PowerVPX system architecture includes:

[0050] Power plane, used to transmit and process power signals;

[0051] Electrical plane, used to transmit and process strong electrical signals;

[0052] Data plane, used to transmit and process high-speed signals;

[0053] The protection plane is used to transmit and process single-ended signals;

[0054] The control plane is used to transmit and process differential signals.

[0055] In the embodiment of the present application, the PowerVPX system architecture of the power secondary equipment is divided into five planes: the power plane, the electrical plane, the data plane, the protection plane, and the control plane. Each plane corresponds to the transmission and processing of a type of data, providing a standardized architecture for the connection and data transmission between power secondary equipment, effectively unifying the connection standards between power secondary equipment, and improving the compatibility and scalability of power secondary equipment. In addition, based on the strong electromagnetic interference characteristics of the power secondary equipment usage scenario, by setting up an electrical plane to transmit strong electrical signals in the power secondary equipment, and by setting up a protection plane to transmit single-ended signals such as locking signals, alarm signals, and timing signals in the power secondary equipment, the reliability of the power secondary equipment in strong electromagnetic interference scenarios can be effectively improved.

[0056] In a fourth aspect, a secondary power device is provided, the secondary power device comprising:

[0057] A power module, configured to generate a power signal and transmit the power signal through a power plane;

[0058] an acquisition module, configured to acquire an AC current signal and / or an AC voltage signal, convert the AC current signal and / or the AC voltage signal through an electrical plane to obtain a low-voltage signal, and output the low-voltage signal to a control module;

[0059] Communication module, used for real-time communication with external devices through the data plane;

[0060] Operation module, used to perform opening or closing operations through strong electric signals transmitted through the electrical plane;

[0061] A control module is used to transmit differential signals to the acquisition module, the communication module and the operation module through a control plane, and to transmit single-ended signals to the power module, the acquisition module, the communication module and the operation module through a protection plane.

[0062] In the embodiment of the present application, data transmission and processing are achieved between the various modules of the power secondary equipment through the power plane, electrical plane, data plane, protection plane and control plane, which can improve the compatibility and scalability of the power secondary equipment.

[0063] In an implementation of the fourth aspect, the power secondary equipment includes a backplane and various functional boards;

[0064] Each of the functional boards is plugged into the backplane;

[0065] The backplane is used to provide transmission and processing channels for power signals, strong power signals, high-speed signals, single-ended signals and differential signals respectively.

[0066] In an embodiment of the present application, by setting up transmission channels for various signals on the backplane, the PowerVPX system architecture of the above-mentioned power secondary equipment is constructed using the backplane. Functional boards can be selected according to actual needs and plugged into the above-mentioned backplane, thereby realizing modularization, universalization, and plug-and-play of the boards.

[0067] In an implementation of the fourth aspect, the power module includes a power board;

[0068] The power board is used to generate a power signal and output the power signal through a power signal transmission channel provided by the backplane.

[0069] In the embodiment of the present application, the function of the power plane is realized by selecting the functional board card, thereby meeting the power supply requirements of the secondary power equipment.

[0070] In an implementation of the fourth aspect, the power module includes a power board, the operation module includes an operation board, the acquisition module includes an acquisition board, and the control module includes a control board;

[0071] The power supply board is used to output a DC strong electric signal to the operation board;

[0072] The acquisition board is used to collect AC current signals and / or AC voltage signals, and the electrical plane is also used to convert the AC current signals and / or AC voltage signals into low voltage signals, and output the low voltage signals to the control board through the high-voltage signal transmission channel provided by the backplane.

[0073] The acquisition boards mentioned above include AC current acquisition boards and AC voltage acquisition boards.

[0074] The above-mentioned operation board includes an A-phase operation board, a B-phase operation board and a C-phase operation board.

[0075] In the embodiment of the present application, based on the characteristics of the power secondary equipment, the corresponding functional boards are used to implement the functions of the electrical plane, realize parameter measurement and electrical control, and effectively improve the reliability of the power secondary equipment in strong electromagnetic interference scenarios.

[0076] In an implementation of the fourth aspect, the communication module includes a communication board and a control board;

[0077] The communication board is used to interact with the control background, receive or send the high-speed signal, and transmit the received high-speed signal to the control board through the data plane provided by the backplane.

[0078] In the embodiment of the present application, by constructing a high-speed signal transmission channel, the data channel and the control channel are separated, and the data plane can be used to achieve high-speed signal transmission.

[0079] In an implementation of the fourth aspect, the control module includes a control board, the operation module includes an input board, an output board, and an operation board, the communication module includes a communication board, the acquisition module includes an acquisition board, and the power module includes a power board;

[0080] The control board performs single-ended signal interaction with the input board, the output board, the communication board, the acquisition board, the operation board and the power board through the protection plane.

[0081] In the embodiment of the present application, the protection plane is used to enable the control board to monitor and control other boards of the power secondary equipment, thereby realizing inter-board monitoring and inter-board maintenance.

[0082] In an implementation of the fourth aspect, the control board is communicatively connected to the input board, the output board, the communication board, the acquisition board, the operation board, and the power board through a CAN bus.

[0083] Among them, the CAN bus is laid out through the backplane, and the CAN bus is used to realize the transmission of single-ended signals, which can also improve the reliability of power secondary equipment in strong electromagnetic interference scenarios.

[0084] In an implementation of the fourth aspect, the control module includes a control board, the operation module includes an input board and an output board, the communication module includes a communication board, and the acquisition module includes an acquisition board;

[0085] The control board performs differential signal interaction with the input board, the output board, the communication board and the acquisition board respectively through the control plane.

[0086] In an implementation of the fourth aspect, the control board is further configured to perform program upgrades on the input board, the output board, the communication board, and the acquisition board, respectively.

[0087] In an embodiment of the present application, the control plane is used to realize the transmission of differential data of the control board to other boards of the power secondary equipment, thereby realizing inter-board control and board upgrade.

[0088] In an implementation of the fourth aspect, the control board is communicatively connected to the input board, the output board, the communication board, and the acquisition board respectively through a low voltage differential signal bus.

[0089] In an implementation of the fourth aspect, the backplane includes a power board slot and a plurality of data board slots;

[0090] The power board slot is used to plug in the power board;

[0091] Each of the data board slots is used to plug in any one of the functional boards among the control board, input board, output board, communication board, acquisition board and operation board.

[0092] In the embodiment of the present application, the interface is unified and standardized through a unified data board card slot. Even if the power secondary equipment produced by different manufacturers is provided with the same data board card slot, the compatibility and scalability of the power secondary equipment can be improved.

[0093] In an implementation of the fourth aspect, the data connection channels of the plurality of data board slots are equal.

[0094] In an implementation of the fourth aspect, a distribution interval between the plurality of data board slots is greater than a preset interference distance.

[0095] 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.

[0096] 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, which can reduce the coupling between the various planes as much as possible.

[0097] In an implementation of the fourth aspect, the power secondary equipment further includes a chassis; and the backplane is disposed in the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0098] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0099] FIG1 is a schematic diagram of a backplane based on the PowerVPX architecture provided in an embodiment of the present application;

[0100] FIG2 is a schematic structural diagram of a power secondary control protection device provided in an embodiment of the present application;

[0101] FIG3 is a schematic structural diagram of a power secondary control and protection device provided in one embodiment of the present application;

[0102] FIG4 is a schematic structural diagram of a power secondary control protection device provided in another embodiment of the present application;

[0103] 5 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 an embodiment of the present application;

[0104] 6 is a schematic diagram of signal transmission between various functional boards and various buses in the power secondary control and protection device provided in an embodiment of the present application;

[0105] 7 is a schematic diagram of a data transmission architecture between a control management board and an input and output general board of a power secondary control and protection device according to another embodiment of the present application;

[0106] FIG8 is a schematic diagram of the architecture of the PowerVPX system architecture of the power secondary equipment provided in an embodiment of the present application;

[0107] FIG9 is a schematic structural diagram of a power secondary device provided in an embodiment of the present application;

[0108] FIG10 is a schematic diagram of a backplane and a functional board of a power secondary device provided in an embodiment of the present application;

[0109] FIG11 is a schematic diagram of the architecture of the power plane of the power secondary device provided in an embodiment of the present application;

[0110] FIG12 is a schematic diagram of the electrical plane architecture of a power secondary device provided in an embodiment of the present application;

[0111] FIG13 is a schematic diagram of the architecture of the data plane of the power secondary equipment provided in an embodiment of the present application;

[0112] FIG14 is a schematic diagram of the architecture of the protection plane of the power secondary equipment provided in an embodiment of the present application;

[0113] FIG15 is a schematic diagram of the architecture of the control plane of the power secondary device provided in an embodiment of the present application;

[0114] FIG16 is a schematic diagram of the architecture of application example 1 of the power secondary equipment provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0115] 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.

[0116] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art 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" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0117] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0118] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0119] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0120] Primary power equipment refers to high-voltage electrical equipment used directly in the production, transmission, and distribution of electrical energy. Secondary power control and protection devices are auxiliary equipment used to control, regulate, and protect primary power equipment.

[0121] Power secondary control protection devices usually have relay protection and control functions.

[0122] However, the current communication rate of the backplane of the power secondary control and protection device is usually around 100Mbps. With the continuous improvement of communication bandwidth and the continuous improvement of real-time data processing performance requirements, there is an urgent need to increase the communication rate of the backplane of the power secondary control and protection device.

[0123] The VPX bus standard is a next-generation high-speed serial bus standard proposed by the VME International Trade Association (VITA) based on the VME bus. The OpenVPX system standard, developed on the basis of the VPX bus, supports the VITA46 standard and the latest high-speed serial bus technologies, such as RapidIO, PCI-Express, and 10 Gigabit Ethernet. Primarily used in embedded computer systems, the OpenVPX system standard provides standardized access and supports higher backplane speeds.

[0124] To improve the transmission rate of the backplane of secondary power control and protection devices, the aforementioned OpenVPX system standard could be considered for use in their backplanes. However, since secondary power control and protection devices are primarily used in substations, their application environments are subject to various electromagnetic interferences, such as transient electromagnetic interference generated by the switching on and off of high-voltage electrical equipment, transient electromagnetic interference caused by short-circuit faults, and magnetic, radiated, and static fields surrounding the electrical equipment. Precisely because of the various electromagnetic interferences present in secondary power control and protection device applications, the OpenVPX system standard cannot be directly adopted when considering interface standardization for secondary power control and protection devices.

[0125] Based on the above considerations, in order to improve the transmission rate of the backplane of the power secondary control and protection device, the embodiment of the present application proposes a PowerVPX-based backplane and a power secondary control and protection device suitable for the power secondary 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 single-ended signals, and using a differential signal transmission bus to transmit differential signals, so that the signal transmission between the various functional boards of the power secondary 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 power secondary control and protection device can be improved, thereby solving the problem of data bandwidth limitation between the various functional boards in the current power secondary control and protection device, improving the data exchange capability of the power secondary control and protection device, and enhancing data throughput.

[0126] The following is an introduction to the power secondary control and protection device and its backplane based on the PowerVPX architecture provided in the embodiments of the present application using specific examples.

[0127] 1 is a schematic diagram of a backplane based on the PowerVPX architecture provided in an embodiment of the present application. As shown in FIG1 , the backplane 10 includes a power connector 11 , a first data connector 12 , a second data connector 13 , and a third data connector 14 .

[0128] 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.

[0129] 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.

[0130] 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.

[0131] In an embodiment of the present application, the above-mentioned 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 above 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 equipment. 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.

[0132] In the embodiments of the present application, the backplane 10 can be inserted with various universal boards to implement the functions of the secondary power control and protection device. For example, a power supply board can be inserted into the backplane 10 to provide the operating voltage required by the various functional boards of the secondary power control and protection device. In another example, by inserting a control management board, an input board, and an output board, input data acquisition and output control of the secondary power equipment can be implemented. In another example, by inserting a control management board and a communication board, real-time data exchange between the secondary power control and protection device and the control backend system can be achieved.

[0133] 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, 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 transmission bus is used 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 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 various 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.

[0134] In one embodiment of the present application, the backplane 10 includes a power board slot and a universal board slot.

[0135] The power board slot is used to plug in the power board, and the universal board slot is used to plug in the input and output universal board (I / O universal board).

[0136] In a specific application, the universal board includes at least one of an input board, an output board, and a communication board.

[0137] It should be noted that multiple power board slots and multiple input and output general board slots can be set on the above-mentioned backplane 10. When configuring the power secondary control and protection device, the user can choose the type of board to be inserted into the backplane 10, for example, the power board, control management board, input board and output board, etc., and then insert the power board into the power board slot, and insert the control management board, input board and output board into the general board slot respectively.

[0138] By setting up universal board slots, when designing boards other than power boards, 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.

[0139] 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.

[0140] 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.

[0141] When laying out the backplane, the distribution intervals between the data board slots are set larger to minimize the coupling between the various planes.

[0142] Based on the PowerVPX architecture-based backplane provided in the above embodiments, the embodiments of the present application also provide a power secondary control and protection device.

[0143] Please refer to Figure 2, which is a schematic diagram of the structure of the power secondary control and protection device provided in an embodiment of the present application. As shown in Figure 2, the power secondary control and protection device 2 may include various functional boards 30 and the backplane 10.

[0144] The above-mentioned functional boards 30 are plugged into the above-mentioned backplane 10 .

[0145] Power signals, single-ended signals, differential signals, and high-speed signals are transmitted between the functional boards 30 through the backplane 10 .

[0146] Please refer to FIG. 1 . In a specific application, it can be seen 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 .

[0147] When each functional board 30 is plugged into the above-mentioned backplane 10, the power signal can be transmitted based on the power connector 11 provided by the backplane 10, the single-ended signal can be transmitted between each functional board through the first data connector 12, the differential signal can be transmitted between each functional board through the second data connector 13, and the high-speed signal can be transmitted between each functional board through the third data connector 14.

[0148] 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.

[0149] 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.

[0150] In the embodiment of the present application, the 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 the modularization, universalization, 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 power secondary 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 for high-speed signal transmission, so that the data transmission bandwidth between each functional board card of the power secondary control and protection device is improved, solving the problem of data bandwidth limitation between each functional board card in the current power secondary control and protection device, improving the data exchange capability of the power secondary control and protection device, and enhancing data throughput.

[0151] In one embodiment, please refer to Figure 3, which is a schematic diagram of the architecture of the power secondary control and protection device provided in an embodiment of the present application. As shown in Figure 3, the functional board 30 includes a power board 31. The power board 31 is used to generate and output a power signal.

[0152] The power signal can be the operating voltage required by various other functional boards, such as 48V, 24V, 12V, or 5V. That is, the power board generates operating voltages such as 48V, 24V, 12V, or 5V, and then outputs these voltages through the power connector 11 provided by the backplane 10 to power the control and management board and other functional boards.

[0153] In another embodiment of the present application, as shown in FIG4 , the above-mentioned function board 30 includes at least two power board 31 ( FIG4 takes the example of a function board including two power board 31 ).

[0154] In specific applications, one of the at least two power supply boards 31 mentioned above can be used as the main power supply board for the power secondary 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.

[0155] In the embodiment of the present application, the redundant design of the power board makes the power supply of the power secondary protection control device more reliable.

[0156] In one embodiment, referring to Figures 3 and 5 , Figure 5 illustrates a schematic diagram of the data transmission architecture between the control management board and the input / output general board of the power secondary control and protection device provided in an embodiment of the present application. As shown in Figure 5 , the functional board 30 further includes a control management board 32 and an input / output general board 33.

[0157] The control management board 32 is connected to the input and output universal board 33 via the first data connector 11 , and transmits single-ended signals via the single-ended signal transmission bus 22 .

[0158] In this embodiment, the single-ended signals include but are not limited to monitoring signals, slot signals, alarm signals, and locking signals between the control and management board 32 and the input and output general board 33 .

[0159] 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.

[0160] 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.

[0161] It should be noted that the monitoring signals are signals required by the control management board 32 to monitor the working status of each input and output universal board 33 , and may be, for example, voltage signals and temperature signals of each input and output universal board 33 .

[0162] In an embodiment of the present application, the above-mentioned control management board 32 and the power board 31 are also connected 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.

[0163] In some embodiments, the single-ended signal transmission bus includes a CAN bus.

[0164] The CAN bus is laid out through the backplane 10 , and single-ended signal transmission is achieved by using the CAN bus, which can improve the reliability of the power secondary control protection device in strong electromagnetic interference scenarios.

[0165] 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 input and output general board 33 respectively through the above-mentioned RS485 bus.

[0166] 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.

[0167] 3 and 5 , in one embodiment, the control management board 32 and the input / output universal board 33 are connected via the second data connector 12 , and differential signals are transmitted via the differential signal transmission bus 23 .

[0168] 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.

[0169] In some application scenarios, the control management board 32 is also used to control the upgrade of each input and output board.

[0170] 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 upgrade control of other functional boards.

[0171] The control management board 32 is also connected to the power board 31 via the second data connector 12 . The control management board 32 also transmits control data to the power board 31 via the differential data transmission bus 23 .

[0172] 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 signaling (LVDS) bus.

[0173] It should be noted that the differential data bus 23 may also include other data buses, such as an M-LVDS data bus.

[0174] Please continue to refer to FIG3 and FIG5, in one embodiment, the above-mentioned input and output universal board 33 includes a communication board 33a

[0175] The control and 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 .

[0176] 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.

[0177] 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.

[0178] In some application scenarios, the communication board may be an optical communication board.

[0179] In a specific application, the high-speed signal transmission bus 24 may include a high-speed serial transmission (Gigabit Transceiver, GTX).

[0180] 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.

[0181] 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 power secondary control protection device can be improved, and the data transmission efficiency and data throughput of the power secondary control protection device can be improved.

[0182] Based on the above, the following describes the data transmission process between the various functional boards of the power secondary control and protection device provided in the embodiment of the present application. Referring to Figure 6 , in this example, the functional boards of the power secondary control and protection device include a first power supply board, a second power supply board, a control and management board 32, and eight input and output general boards 33, to illustrate the data transmission relationship between the various functional boards in the power secondary equipment provided in the embodiment of the present application.

[0183] As shown in Figure 6, the first and second power boards generate power signals and output them to the control and management board 32 and the various universal input and output boards 33 via a power bus, providing power to the control and management board 32 and the various universal input and output boards 33. The control and management board 32 and the various universal input and output boards 33 transmit single-ended signals via the CAN bus. The control and management board 32 and the various universal input and output boards 33 transmit differential signals via the LDVS bus. The control and management board 32 and the various universal input and output boards 33 transmit high-speed signals via the RapidIO bus.

[0184] As can be seen from the above, the power secondary control and protection device provided in the embodiment of the present application, based on the above, the data transmission process between the various functional boards of the power secondary control and protection device provided in the embodiment of the present application is described below. Please refer to Figure 6. In this example, the functional boards of the above-mentioned power secondary control and protection device include a first power board, a second power board, a control management board, and 12 input and output general boards, and the data transmission relationship between the various functional boards in the power secondary equipment provided in the embodiment of the present application is illustrated.

[0185] As shown in Figure 6, the first and second power supply boards generate power signals and output them to the control and management board and the various universal input and output boards via a power bus, providing power to the control and management board and the various universal input and output boards. The control and management board transmits single-ended signals to the various universal input and output boards via the CAN bus. The control and management board also transmits LDVS differential data to the various universal input and output boards. The control and management board also transmits SRIO data to the various universal input and output boards.

[0186] In one embodiment, referring to FIG. 7 , the control management board 32 includes a first control module 321 and a second control module 322 .

[0187] The first control module 321 is used to perform task management, data transmission management, and data communication processing according to differential signals and high-speed signals.

[0188] The second control module 322 is used to monitor the board status according to the single-ended signal.

[0189] Exemplarily, the first control module 321 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.

[0190] In a specific application, the second control module 322 may include a baseboard management controller (BMC), which can be used to implement functions such as board temperature monitoring, power monitoring, and status monitoring.

[0191] It should be noted that the specific processes of the aforementioned task management, data transmission management, and data communication processing can be determined based on the actual application scenario of the power secondary control and protection device. In response to different situations, the first control module can output different control signals to implement the functions of the power secondary control and protection device. For example, when it is necessary to control the opening / closing of a knife switch, the control signal is output to the output board, which then outputs the opening contact via a relay to implement the opening / closing of the knife switch.

[0192] 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.

[0193] In one embodiment, please continue to refer to FIG. 7 , the input and output universal board 33 includes 331 and a board parameter monitoring module 332 .

[0194] The data transceiver processing module 331 is used for data transceiver. The board parameter monitoring module 332 is used for acquiring the working parameters of the input and output universal board 33 .

[0195] The above operating parameters include but are not limited to operating voltage, operating temperature, etc.

[0196] In a specific application, the data transceiver processing module 331 may include a field programmable gate array (FPGA), which implements data transceiver.

[0197] In a specific application, the board parameter monitoring module 332 may include a baseboard management controller (BMC), through which the board operating parameters are acquired.

[0198] 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.

[0199] In one embodiment, the power secondary control and protection device 2 further includes a chassis; the backplane is disposed in the chassis.

[0200] In specific applications, the above-mentioned chassis includes but is not limited to a 3U chassis, a 4U chassis and a 6U chassis.

[0201] In one embodiment, the power secondary control and protection device includes a 4U chassis, and the 4U chassis has a width*height*depth of 482 (mm)*177 (mm)*291 (mm).

[0202] Commonly used power secondary equipment, such as 4U cabinets, 6U cabinets, backplanes, and various boards, do not have uniformly defined connectors and interfaces. As a result, the compatibility and scalability of power secondary equipment produced by different manufacturers are poor.

[0203] The VPX bus standard is a next-generation high-speed serial bus standard proposed by the VME International Trade Association (VITA) based on the VME bus. The OpenVPX system standard, a system-defining standard, introduces the concept of "planes," dividing the system into five planes: expansion plane, data plane, control plane, management plane, and general plane. The OpenVPX system standard is primarily used in embedded computer systems, providing standardized access for these systems.

[0204] However, since power secondary equipment is primarily used in substations, its application environment is subject to various electromagnetic interferences, such as transient electromagnetic interference generated by the switching on and off of high-voltage electrical equipment, transient electromagnetic interference caused by short-circuit faults, and interference from magnetic fields, radiation fields, and static electricity surrounding the electrical equipment. Precisely because of the various electromagnetic interferences present in power secondary equipment applications, the OpenVPX system standard cannot be directly adopted when considering interface standardization for power secondary equipment.

[0205] Based on the above considerations, in order to solve the problem of poor compatibility and scalability of current power secondary equipment, the embodiment of the present application proposes a PowerVPX system architecture suitable for power secondary equipment based on the existing OpenVPX system standard, and divides the PowerVPX system architecture of power secondary equipment into a power plane, an electrical plane, a data plane, a protection plane and a control plane. Among them, the power plane can transmit and process power signals, the electrical plane can transmit and process strong electric signals, the protection plane can transmit and process single-ended signals, the data plane can transmit and process high-speed signals, and the control plane can transmit and process differential signals; the PowerVPX system architecture unifies the connection standards and PowerVPX system architecture of power secondary equipment, thereby improving the compatibility and scalability of power secondary equipment; and by setting up an electrical plane to transmit strong electric signals in power secondary equipment, and by setting up a protection plane to transmit single-ended signals such as locking signals, alarm signals, and timing signals in power secondary equipment, the reliability of power secondary equipment in strong electromagnetic interference scenarios can be effectively improved.

[0206] The following describes the power secondary equipment based on the PowerVPX system architecture and its PowerVPX system architecture provided in the embodiments of the present application with specific examples.

[0207] See Figure 8, which is a schematic diagram of the PowerVPX system architecture for power secondary equipment provided in an embodiment of the present application. As shown in Figure 8, the PowerVPX system architecture 1 includes a power plane 81, an electrical plane 82, a data plane 83, a protection plane 84, and a control plane 85. The power plane 81 is used to transmit and process power signals, the electrical plane 82 is used to transmit and process strong electrical signals, the data plane 83 is used to transmit and process high-speed signals, the protection plane 84 is used to transmit and process single-ended signals, and the control plane 85 is used to transmit and process differential signals.

[0208] It can be understood that in the embodiments of the present application, the "plane" in "power plane", "electrical plane", "data plane", "protection plane" and "control plane" can refer to the data transmission and processing channels (including but not limited to physical channels and logical channels) between power secondary equipment or between modules within power secondary equipment.

[0209] Specifically, the five planes correspond to different data transmission and processing channels, and accordingly, the five planes transmit and process different signals. That is, in the embodiment of the present application, the signals transmitted by the power secondary equipment are divided into five types of signals: the power supply signal, the high-voltage signal, the high-speed signal, the single-ended signal, and the differential signal. Each of the five planes corresponds to the transmission and processing channel for a type of signal.

[0210] In the embodiment of the present application, the power supply signal is the power supply voltage required for the operation of each module of the above-mentioned power secondary equipment. For example, it can be 48V, 24V, 12V, 5V, etc. The strong current signal is the strong current control signal required by the operating mechanism of the above-mentioned power secondary equipment, such as the 220V / 110V DC strong current signal that controls the opening / closing of the operating mechanism. The high-speed signal is a data signal of real-time data with a transmission rate of 1Gbps or above transmitted between the above-mentioned power secondary equipment and equipment such as the control background system. The single-ended signal is a discrete signal such as the monitoring signal, slot number, alarm signal and locking signal between the internal control module and other functional modules of the above-mentioned power secondary equipment. The differential signal refers to the control information between the internal control module and other functional modules of the power secondary equipment, and the transmission rate is differential data of 100Mbps to 500Mbps.

[0211] In an embodiment of the present application, different planes can be constructed based on the various modules of the power secondary equipment. For example, the power plane can include the power module of the power secondary equipment, that is, the working voltage required for the operation of other modules in the power secondary equipment is output through the power module, and the required working voltage is input to each module through the above-mentioned power plane, such as the working voltage required by the acquisition module, the working voltage required by the communication module, the working voltage required by the input and output module, etc. For another example, the electrical plane may include the power module, control module, acquisition module, and operation module (operating mechanism) of the power secondary equipment, and the strong electric signals between these modules are transmitted through the electrical plane, such as the 220V / 110V DC strong electric signal required for the above-mentioned control operating mechanism to open / close the switch. For another example, the data plane may include the control module and communication module of the power secondary equipment, and the above-mentioned communication module and the above-mentioned control module transmit real-time data (transmission rate exceeds 1Gbps) through the data plane. For another example, the above-mentioned protection plane may include the control module and other functional modules of the power secondary equipment, and the control module and other modules transmit each single-ended discrete signal (including but not limited to monitoring signal, slot number, alarm signal and locking signal) through the above-mentioned protection plane. For another example, the control plane includes a control module and other modules, and the control module and other modules transmit control information (including but not limited to upgrade data and differential control signals for upgrading each module) through the control plane.

[0212] It should be noted that which modules are included in the above-mentioned power secondary equipment can be determined according to the actual functions of the power secondary equipment. For example, if the power secondary equipment is a measuring instrument, the above-mentioned power secondary equipment may include a power supply module, a control module and an acquisition module; for another example, if the above-mentioned power secondary equipment is a circuit breaker control device composed of a relay and an automatic device, the above-mentioned power secondary equipment may include a power supply module, a control module and an operating mechanism (for example, an A-phase operating mechanism, a B-phase operating mechanism, and a C-phase operating mechanism); for another example, if the above-mentioned power secondary equipment is a device that integrates multiple functions such as measuring instruments, relays, and automatic devices, the above-mentioned power secondary equipment may include a power supply module, a control module, an acquisition module and an operating mechanism.

[0213] As can be seen from the above, in the embodiment of the present application, the PowerVPX system architecture of the power secondary equipment is divided into five planes: the power plane, the electrical plane, the data plane, the protection plane, and the control plane. Each plane corresponds to the transmission and processing of a type of data, providing a standardized architecture for the connection and data transmission between power secondary equipment, effectively unifying the connection standards between power secondary equipment, and improving the compatibility and scalability of power secondary equipment. In addition, based on the strong electromagnetic interference characteristics of the power secondary equipment usage scenario, by setting up an electrical plane to transmit strong electrical signals in the power secondary equipment, and by setting up a protection plane to transmit single-ended signals such as locking signals, alarm signals, and timing signals in the power secondary equipment, the reliability of the power secondary equipment in strong electromagnetic interference scenarios can be effectively improved.

[0214] The present application also provides a secondary power device, which is mainly used in substations. The secondary power device has current / voltage monitoring and protection functions, and can perform protection actions, etc. when the primary power device fails or is abnormal.

[0215] The above-mentioned power secondary equipment may include a power supply module, a collection module, a communication module, an operation module and a control module

[0216] Among them, the power module is used to generate a power signal and transmit the power signal through the power plane. The acquisition module is used to acquire AC current signals and / or AC voltage signals, and convert the AC current signals and / or AC voltage signals through the electrical plane to obtain low-voltage signals, and output the low-voltage signals to the control module. The communication module is used to communicate with external devices in real time through the data plane. The operation module is used to perform opening or closing operations through the strong electric signal transmitted by the electrical plane. The control module is used to transmit differential signals to the acquisition module, the communication module and the operation module through the control plane, and transmit single-ended signals to the power module, the acquisition module, the communication module and the operation module through the protection plane.

[0217] In specific applications, the above modules can be implemented through a backplane and a functional board, or through an integrated circuit module with corresponding functions.

[0218] In some embodiments,

[0219] Please refer to Figure 9, which is a schematic diagram of the structure of the power secondary device provided in an embodiment of the present application. As shown in Figure 9, the power secondary device 9 may include a backplane 91 and various functional boards 92. Each functional board 92 is plugged into the backplane 91.

[0220] The backplane 91 is used to provide transmission channels for power signals, strong power signals, high-speed signals, single-ended signals and differential signals respectively.

[0221] In an embodiment of the present application, the backplane 21 is configured with a bus based on the PowerVPX system architecture, thereby providing transmission and processing channels for the power signals, strong power signals, high-speed signals, single-ended signals, and differential signals through the backplane 91.

[0222] The above buses include but are not limited to single-ended data transmission lines, low-voltage differential signaling (LVDS) buses, power buses, RapidIO high-speed serial buses, and gigabit transceiver (GTX) buses.

[0223] In the embodiment of the present application, the above-mentioned various functional boards 92 can be configured according to the actual functions of the power secondary device 9. For example, if the above-mentioned power secondary device 9 is a measuring instrument, the above-mentioned functional boards 92 may include a power supply board, a control board, an AC voltage acquisition board, and an AC current acquisition board; for another example, if the above-mentioned power secondary device 9 is a circuit breaker control device composed of relays and automatic devices, the above-mentioned functional boards may include a power supply board, a control board, an A-phase operation board, a B-phase operation board, a C-phase operation board, etc.; for another example, if the above-mentioned power secondary device 9 is a device that integrates multiple functions such as measuring instruments, relays, and automatic devices, the above-mentioned functional boards 92 may include a power supply board, a control board, an AC voltage acquisition board, an AC current acquisition board, an A-phase operation board, a B-phase operation board, a C-phase operation board, etc.

[0224] For example, referring to FIG. 10 , the functional boards 92 may include a control board 921 , a communication board 922 , an acquisition board 923 , an input board 924 , an output board 925 , an operation board 926 , and a power supply board 927 .

[0225] In a specific application, the control board 921 may be a CPU management board, the communication board 922 may be an optical communication board, the acquisition board 923 may be an AC voltage acquisition board and / or an AC current acquisition board, and the operation board 926 may include each phase operation board, such as an A-phase operation board, a B-phase operation board, and a C-phase operation board.

[0226] In an embodiment of the present application, by setting up transmission channels for various signals on the backplane, the PowerVPX system architecture of the above-mentioned power secondary equipment is constructed using the backplane. Functional boards can be selected according to actual needs and plugged into the above-mentioned backplane, thereby realizing modularization, universalization, and plug-and-play of the boards.

[0227] In one embodiment, please refer to Figure 11, which is a schematic diagram of the power plane architecture of a power secondary device provided in an embodiment of the present application. As shown in Figure 11, the functional board 92 includes a power board 927. Specifically, the power module includes the power board 927, which is used to generate an output power signal and output the power signal to other functional boards 92 via the power signal transmission channel provided by the backplane 91.

[0228] The power signal can be the operating voltage required by various other modules, such as 48V, 24V, 12V, or 5V. That is, on the power plane, the power board generates and outputs 48V, 24V, 12V, or 5V operating voltages to the control board 921, communication board 922, acquisition board 923, input board 924, output board 925, and operation board 926.

[0229] In other embodiments, multiple power supply boards 927 can be selected to realize the function of the power plane, where one power supply board 927 serves as the main power supply board, and one power supply board 927 serves as the auxiliary power supply board; or, different power supply boards 927 can output power signals with different voltage values, thereby realizing the function of the power plane.

[0230] In the embodiment of the present application, the function of the power plane is realized by selecting the functional board card, thereby meeting the power supply requirements of the secondary power equipment.

[0231] In one embodiment, please refer to Figure 12, which is a schematic diagram of the electrical plane architecture of the power secondary device provided in an embodiment of the present application. As shown in Figure 12, the function board 92 includes a power board 927, an operation board 926, an acquisition board 923, and a control board 921.

[0232] The power board 927 is used to output DC high-voltage signals to the operation board 926; the acquisition board 923 is used to collect AC current signals and / or AC voltage signals, and the electrical plane is also used to convert AC current signals and / or AC voltage signals into low-voltage signals, and output the low-voltage signals to the control board 921 through the high-voltage signal transmission channel provided by the backplane 91.

[0233] Among them, the strong electric signal transmitted on the electrical plane can be output by the power board 927, that is, a DC strong electric signal is output, including a DC 220V and / or DC 110V strong electric signal. The power board 927 outputs a DC strong electric signal to control the operation board 926 to execute the opening / closing action of the circuit breaker / knife switch to realize electrical control.

[0234] In some application scenarios, the above-mentioned operation boards include an A-phase operation board 926a, a B-phase operation board 926b, and a C-phase operation board 926c.

[0235] In specific applications, the power supply board 927 can output DC strong electric signals to the above-mentioned A-phase operation board 926a, the above-mentioned B-phase operation board 926b and the above-mentioned C-phase operation board 926c respectively, so as to realize the opening / closing action of the circuit breaker / knife switch of phase A through the above-mentioned A-phase operation board 926a card, realize the opening / closing action of the circuit breaker / knife switch of phase B through the above-mentioned B-phase operation board 926b, and realize the opening / closing action of the circuit breaker / knife switch of phase C through the C-phase operation board 926c.

[0236] Among them, the strong electric signal transmitted on the electrical plane can also be input by the acquisition board 923, that is, the acquisition board 923 collects the strong electric signal of the voltage transformer / current transformer and converts it into a low-voltage signal, and then transmits the low-voltage signal to the control board 921 (such as the CPU management board) on the above-mentioned electrical plane, thereby realizing the measurement of power parameters.

[0237] The low voltage signal is a voltage signal with a voltage range of 0 to 10V.

[0238] In some application scenarios, the acquisition board 923 includes an AC voltage acquisition board 923a and an AC current acquisition board 923b.

[0239] In a specific application, the above-mentioned AC voltage acquisition board 923a converts the 100V strong electric signal of the voltage transformer into a low-voltage signal, and then transmits the collected value to the above-mentioned control board 921 through the above-mentioned electrical plane. The above-mentioned AC current acquisition board 923b also converts the voltage value of the 1A / 5A current transformer into a low-voltage signal, and then transmits it to the above-mentioned control board 921.

[0240] In other embodiments, the electrical plane functions can be implemented by selecting corresponding functional boards based on the actual application scenario. For example, for power secondary equipment requiring measurement, only the acquisition board 923 and the control board 921 can be selected to implement the electrical plane functions. For another example, for power secondary equipment requiring automatic control, the power board 927 and the operation board 926 can be selected to implement the electrical plane functions.

[0241] In the embodiment of the present application, based on the characteristics of the power secondary equipment, the corresponding functional boards are used to implement the functions of the electrical plane, realize parameter measurement and electrical control, and effectively improve the reliability of the power secondary equipment in strong electromagnetic interference scenarios.

[0242] In one embodiment, please refer to Figure 13, which is a schematic diagram of the data plane architecture of the power secondary equipment provided in an embodiment of the present application. As shown in Figure 13, the functional board 92 includes a communication board 922 and a control board 921. The communication module may include the communication board 922 and the control board 921. The communication board 922 is used to interact with the control background, receive or send high-speed signals, and transmit the received high-speed signals to the control board 921 via the high-speed signal transmission channel provided by the backplane 91.

[0243] 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 equipment and control background systems and other equipment.

[0244] On the data plane, high-speed signal transmission is achieved through the communication board 922, realizing data interaction between the background system and the control board of the power secondary equipment.

[0245] In some application scenarios, the communication board may be an optical communication board.

[0246] In a specific application, the backplane 91 can realize data transmission between the communication board and the control board through high-speed serial transmission (Gigabit Transceiver, GTX).

[0247] In other embodiments, the data plane may transmit high-speed signals using a serial bus such as a RapidIO high-speed serial bus.

[0248] In the embodiment of the present application, by constructing a high-speed signal transmission channel, the data channel and the control channel are separated, and the data plane can be used to achieve high-speed signal transmission.

[0249] In one embodiment, please refer to Figure 14, which is a schematic diagram of the protection plane architecture of the power secondary equipment provided in an embodiment of the present application. As shown in Figure 14, the functional board 92 includes a control board 921, a communication board 922, an acquisition board 923, an input board 924, an output board 925, an operation board 926, and a power board 927; the control board 921 exchanges single-ended signals with the communication board 922, the acquisition board 923, the input board 924, the output board 925, the operation board 926, and the power board 927 through the protection plane.

[0250] Single-ended signals refer to signals transmitted over a single signal line, including but not limited to discrete signals such as monitoring signals, slot numbers, alarm signals, and lockout signals between the control board 921 and other functional boards. Examples include monitoring signals between the control board 921 and the input board 924, lockout signals between the control board 921 and the operation board 926, and the control board 921 obtaining the slot numbers corresponding to each functional board.

[0251] The protection plane enables the control board to monitor and control other boards of the power secondary equipment, thus realizing inter-board monitoring and inter-board maintenance.

[0252] In specific applications, the above-mentioned input board card 924 is used to determine the input quantity, such as the opening and closing position of the knife switch / the switching state of the switch, and the above-mentioned output board card 925 is used to output the output contact through the relay to realize the opening / closing of the knife switch.

[0253] In some application scenarios, the control board 921 is respectively connected to the communication board 922, the acquisition board 923, the input board 924, the output board 925, the operation board 926 and the power board 927 through the CAN bus.

[0254] Among them, the CAN bus is laid out through the backplane 91, and the CAN bus is used to realize the transmission of single-ended signals, which can also improve the reliability of the power secondary equipment in the strong electromagnetic interference scenario.

[0255] It should be noted that the above-mentioned control board 921 can also realize single-ended signal transmission with the communication board 922, the acquisition board 923, the input board 924, the output board 925, the operation board 926 and the power board 927 through other data buses, such as the RS485 bus.

[0256] In other embodiments, the protection plane function can be implemented by selecting corresponding functional boards based on the actual application scenario. For example, for power secondary equipment with measurement requirements, the control board 921 can only implement single-ended signal transmission with the acquisition board 923 and the power board 927 when implementing the protection plane function. For another example, for power secondary equipment with automatic control requirements, the control board 921 can only implement single-ended signal transmission with the power board 927 and the operation board 926 when implementing the protection plane function.

[0257] In one embodiment, please refer to Figure 15, which is a schematic diagram of the control plane architecture of the power secondary device provided in an embodiment of the present application. As shown in Figure 15, the functional board 92 includes a control board 921, a communication board 922, an acquisition board 923, an input board 924, and an output board 925.

[0258] The control board 921 exchanges differential signals with the communication board 922 , the acquisition board 923 , the input board 924 and the output board 925 respectively through the control plane.

[0259] 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 board and other functional boards of the power secondary equipment. The above control information is differential data with a transmission rate of 100Mbps to 500Mbps.

[0260] In some application scenarios, the control board 921 is also used to perform program upgrades on the communication board 922 , the acquisition board 923 , the input board 924 , and the output board 925 , respectively.

[0261] That is, the control board 921 transmits upgrade data (also a differential signal) for program upgrades to the communication board 922, the acquisition board 923, the input board 924, and the output board 925 through the control plane, thereby realizing upgrade control of other functional boards.

[0262] In some application scenarios, the control board 921 is respectively connected to the communication board 922, the acquisition board 923, the input board 924 and the output board 925 via a low-voltage differential signaling (LVDS) bus.

[0263] In other embodiments, the control plane function can be implemented by selecting the corresponding functional board according to the actual application scenario. For example, for power secondary equipment with measurement requirements, the control board 921 can only implement differential signal transmission with the acquisition board 923 when implementing the control plane function.

[0264] Based on the above, the following describes the functional boards related to each plane of the power secondary equipment provided in the embodiment of the present application in conjunction with Example 1. Referring to Figure 16, in Example 1, the functional boards of the power secondary equipment include a CPU management board 921a, an optical communication board 922a, an acquisition board 923, an output board 925, an input board 924, an operation board 926, and a power board 927 as an example, illustrating the data transmission relationship between the power plane, electrical plane, data plane, protection plane, and control plane provided in the embodiment of the present application.

[0265] As shown in Figure 16, on the power plane, the power board 927 outputs power signals to the CPU management board 921a, communication board 922, acquisition board 923, output board 925, input board 924, and operation board 926, respectively, providing power to the CPU management board 921a, communication board 922, acquisition board 923, output board 925, input board 924, and operation board 926. On the electrical plane, the power board 927 outputs strong electrical signals to the operation board 926, and the acquisition board 923 outputs strong electrical signals to the CPU management board 921a. On the data plane, the CPU management board 921a and the communication board 922 transmit high-speed signals. On the protection plane, the CPU management board 921a transmits single-ended signals to the communication board 922, acquisition board 923, output board 925, input board 924, operation board 926, and power board 927. On the control plane, the CPU management board 921 a transmits differential signals to the communication board 922 , the acquisition board 923 , the output board 925 , and the input board 924 , respectively.

[0266] As can be seen from the above, the power secondary equipment provided by the embodiment of the present application can transmit corresponding signals based on five planes respectively, effectively unifying the connection standards between power secondary equipment and improving the compatibility and scalability of power secondary equipment. In addition, based on the strong electromagnetic interference characteristics of the power secondary equipment usage scenario, by setting up an electrical plane to transmit strong electrical signals in the power secondary equipment, and by setting up a protection plane to transmit single-ended signals such as locking signals, alarm signals, and timing signals in the power secondary equipment, the reliability of the power secondary equipment in strong electromagnetic interference scenarios can be effectively improved.

[0267] In one embodiment of the present application, a power board slot and several data board slots may be provided on the backplane 91 of the above-mentioned power secondary equipment.

[0268] The power board slot is used to plug in the power board.

[0269] Each of the above-mentioned data board slots is used to plug in any one of the functional boards among the control board, input board, output board, communication board, acquisition board and operation board.

[0270] In some embodiments, the data connection channels of several of the data board slots are equal.

[0271] The backplane can be provided with multiple power board slots to achieve power redundancy design. The above-mentioned several data board slots can be distributed in rows and columns on the backplane 91, making the overall layout of the backplane 91 neat and easy to connect.

[0272] In the embodiment of the present application, the interface is unified and standardized through a unified data board card slot. Even if the power secondary equipment produced by different manufacturers is provided with the same data board card slot, the compatibility and scalability of the power secondary equipment can be improved.

[0273] In one embodiment, the distribution interval of the plurality of data board slots is greater than a preset interference distance.

[0274] 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.

[0275] When laying out the backplane, the distribution intervals between the data board slots are set larger to minimize the coupling between the various planes.

[0276] In one embodiment, the above-mentioned power secondary equipment further includes a chassis; the backplane is arranged in the chassis.

[0277] In specific applications, the above-mentioned chassis includes but is not limited to a 3U chassis, a 4U chassis and a 6U chassis.

[0278] In the several embodiments provided in this 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. In actual implementation, there may be other division methods, 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.

[0279] Finally, it should be noted that the above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A backplane, comprising: 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, wherein: 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, wherein: 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, wherein: The distribution interval of a plurality of the universal board slots is greater than a preset interference distance.

5. A power secondary control and protection device, comprising 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, wherein: 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, wherein: 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, wherein: 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, wherein: The single-ended signal transmission bus includes a CAN bus.

10. The power secondary control protection device according to claim 8, wherein: 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, wherein: The differential signal transmission bus includes a low voltage differential signal bus.

12. The power secondary control protection device according to claim 8, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: The chassis includes a 4U chassis.

18. A PowerVPX system architecture, applied to power secondary equipment, the PowerVPX system architecture comprising: Power plane, used to transmit and process power signals; The electrical plane is used to transmit and process strong electrical signals; Data plane, used to transmit and process high-speed signals; A protection plane for transmitting and processing single-ended signals; Control plane, used to transmit and process differential signals.

19. A power secondary device, comprising: A power module, used for generating a power signal and transmitting the power signal through a power plane; An acquisition module, used for acquiring an AC current signal and / or an AC voltage signal, and converting the AC current signal and / or the AC voltage signal through an electrical plane to obtain a low voltage signal, and outputting the low voltage signal to a control module; A communication module, used for real-time communication with external devices through a data plane; An operating module, used to perform opening or closing operations through strong electric signals transmitted through the electrical plane; The control module is used to transmit differential signals to the acquisition module, the communication module and the operation module through a control plane, and to transmit single-ended signals to the power module, the acquisition module, the communication module and the operation module through a protection plane.

20. The power secondary device according to claim 19, wherein: The power secondary equipment includes a backplane and various functional boards; Each of the functional boards is plugged into the backplane; The backplane is used to provide transmission and processing channels for power signals, strong power signals, high-speed signals, single-ended signals and differential signals respectively.

21. The power secondary device according to claim 20, wherein: The power module includes a power board; The power board is used to generate a power signal and output the power signal through a power signal transmission channel provided by the backplane.

22. The power secondary device according to claim 10, wherein: The power module includes a power board, the operation module includes an operation board, the acquisition module includes an acquisition board, and the control module includes a control board; The power board is used to output a DC strong electric signal to the operation board; The acquisition board is used to collect AC current signals and / or AC voltage signals, and the electrical plane is also used to convert the AC current signals and / or AC voltage signals into low voltage signals, and output the low voltage signals to the control board through the high-voltage signal transmission channel provided by the backplane.

23. The power secondary device according to claim 22, wherein: The acquisition board includes an AC current acquisition board and an AC voltage acquisition board.

24. The power secondary device according to claim 22, wherein: The operation board includes an A-phase operation board, a B-phase operation board and a C-phase operation board.

25. The power secondary device according to claim 20, wherein: The communication module includes a communication board and a control board; The communication board is used to interact with the control background, receive or send the high-speed signal, and transmit the received high-speed signal to the control board through the data plane provided by the backplane.

26. The power secondary device according to claim 20, wherein: The control module includes a control board, the operation module includes an input board, an output board and an operation board, the communication module includes a communication board, the acquisition module includes an acquisition board, and the power module includes a power board; The control board performs single-ended signal interaction with the input board, the output board, the communication board, the acquisition board, the operation board and the power board through the protection plane.

27. The power secondary device according to claim 26, wherein: The control board is respectively connected to the input board, the output board, the communication board, the acquisition board, the operation board and the power board through a CAN bus.

28. The power secondary device according to claim 20, wherein: The control module includes a control board, the operation module includes an input board and an output board, the communication module includes a communication board, and the acquisition module includes an acquisition board; The control board performs differential signal interaction with the input board, the output board, the communication board and the acquisition board respectively through the control plane.

29. The power secondary device according to claim 28, wherein: The control board is also used to respectively upgrade the programs of the input board, the output board, the communication board and the acquisition board.

30. The power secondary device according to claim 28 or 29, wherein: The control board is respectively connected to the input board, the output board, the communication board and the acquisition board through a low voltage differential signal bus.

31. The power secondary device according to any one of claims 20 to 30, wherein: The backplane includes a power board slot and a plurality of data board slots; The power board slot is used to plug in the power board; Each of the data board slots is used to plug in any functional board among a control board, an input board, an output board, a communication board, a collection board, and an operation board.

32. The power secondary device according to claim 31, wherein: The data connection channels of the plurality of data board slots are equal.

33. The power secondary device according to claim 31 or 32, wherein: The distribution interval of a plurality of the data board slots is greater than a preset interference distance.

34. The power secondary device according to any one of claims 20 to 33, wherein: The power secondary equipment also includes a chassis; The backplane is arranged in the chassis.

Images