Power secondary equipment based on PowerVPX system architecture

Abstract

The embodiment of the invention provides a power secondary device based on a PowerVPX system architecture. The power secondary equipment adopts a PowerVPX system architecture, the PowerVPX system architecture comprises a power supply plane, an electrical plane, a data plane, a protection plane and a control plane, each plane corresponds to transmission and processing of one type of data, and a standardized architecture is provided for connection and data transmission between the power secondary equipment. The connection standard between the electric power secondary equipment is effectively unified, and the compatibility and the expandability of the electric power secondary equipment are improved. Based on the characteristic of strong electromagnetic interference of the use scene of the power secondary equipment, the electrical plane is arranged to transmit strong electric signals in the power secondary equipment, and the protection plane is arranged to transmit single-ended signals such as a blocking signal, an alarm signal and a time tick signal in the power secondary equipment. And the reliability of the power secondary equipment in a strong electromagnetic interference scene can be effectively improved.

Description

Technical Field

[0001] The present application relates to the electrical field, and in particular to a power secondary device based on the PowerVPX system architecture and its PowerVPX system architecture. Background Art

[0002] Primary power equipment refers to high-voltage electrical equipment directly used in the production, transmission and distribution of electric energy. Secondary power equipment is auxiliary equipment for monitoring, measuring, controlling, regulating and protecting primary power equipment. Secondary power equipment includes measuring instruments, relays, operating switches, automatic devices, background computers, signal equipment, control cables and power supply devices.

[0003] Since all kinds 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. Summary of the invention

[0004] The present application provides a power secondary device and its PowerVPX system architecture, which solves the problems of poor compatibility and scalability of power secondary devices in the prior art.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, a PowerVPX system architecture is provided, which is applied to power secondary equipment. The PowerVPX system architecture includes:

[0007] Power plane, used to transmit and process power signals;

[0008] The electrical plane is used to transmit and process strong electrical signals;

[0009] Data plane, used to transmit and process high-speed signals;

[0010] A protection plane for transmitting and processing single-ended signals;

[0011] Control plane, used to transmit and process differential signals.

[0012] 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. And based on the strong electromagnetic interference characteristics of the use scenarios of power secondary equipment, 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.

[0013] In a second aspect, a secondary power device is provided, the secondary power device comprising:

[0014] A power module, used for generating a power signal and transmitting the power signal through a power plane;

[0015] 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;

[0016] A communication module, used for real-time communication with external devices through a data plane;

[0017] An operating module, used to perform opening or closing operations through strong electric signals transmitted through the electrical plane;

[0018] 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.

[0019] In the embodiment of the present application, data transmission and processing are achieved between 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.

[0020] In an implementation of the second aspect, the power secondary device includes a backplane and various functional boards;

[0021] Each of the functional boards is plugged into the backplane;

[0022] 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.

[0023] In an embodiment of the present application, by setting up transmission channels for various signals on the backplane and using the backplane to build the PowerVPX system architecture of the above-mentioned power secondary equipment, 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.

[0024] In an implementation of the second aspect, the power module includes a power board;

[0025] 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.

[0026] 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.

[0027] In an implementation of the second 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;

[0028] The power board is used to output a DC strong electric signal to the operation board;

[0029] 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.

[0030] The acquisition boards mentioned above include AC current acquisition boards and AC voltage acquisition boards.

[0031] The above-mentioned operation board includes an A-phase operation board, a B-phase operation board and a C-phase operation board.

[0032] 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.

[0033] In an implementation of the second aspect, the communication module includes a communication board and a control board;

[0034] 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.

[0035] In the embodiment of the present application, by constructing a high-speed signal transmission channel to achieve separation of the data channel and the control channel, the data plane can be used to achieve high-speed transmission of signals.

[0036] In an implementation of the second 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;

[0037] 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.

[0038] 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.

[0039] In an implementation of the second 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.

[0040] 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.

[0041] In an implementation of the second 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;

[0042] 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.

[0043] In an implementation of the second aspect, the control board is also used to perform program upgrades on the input board, the output board, the communication board, and the acquisition board respectively.

[0044] In the embodiment of the present application, the control plane is used to control the board to transmit differential data of other boards of the power secondary equipment, thereby realizing inter-board control and board upgrade.

[0045] In an implementation of the second 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.

[0046] In an implementation of the second aspect, the backplane includes a power board slot and a plurality of data board slots;

[0047] The power board slot is used to plug in the power board;

[0048] 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.

[0049] 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 are provided with the same data board card slot, the compatibility and scalability of the power secondary equipment can be improved.

[0050] In an implementation of the second aspect, data connection channels of a plurality of data board slots are equal.

[0051] In an implementation of the second aspect, a distribution interval of a plurality of the data board slots is greater than a preset interference distance.

[0052] 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.

[0053] In the embodiment of the present application, when the backplane is laid out, the distribution intervals between the data board card slots are set to be larger, which can reduce the coupling between the various planes as much as possible.

[0054] In an implementation of the second aspect, the power secondary equipment further includes a chassis; and the backplane is disposed in the chassis.

[0055] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the architecture of the PowerVPX system architecture of the power secondary equipment provided in the embodiment of the present application;

[0057] Figure 2 It is a structural schematic diagram of the power secondary equipment provided in the embodiment of the present application;

[0058] Figure 3 It is a schematic diagram of the backplane and function board of the power secondary equipment provided in the embodiment of the present application;

[0059] Figure 4 It is a schematic diagram of the architecture of the power plane of the power secondary equipment provided in the embodiment of the present application;

[0060] Figure 5It is a schematic diagram of the electrical plane architecture of the power secondary equipment provided in the embodiment of the present application;

[0061] Figure 6 It is a schematic diagram of the architecture of the data plane of the power secondary equipment provided in the embodiment of the present application;

[0062] Figure 7 It is a schematic diagram of the architecture of the protection plane of the power secondary equipment provided in the embodiment of the present application;

[0063] Figure 8 It is a schematic diagram of the architecture of the control plane of the power secondary equipment provided in the embodiment of the present application;

[0064] Fig. 9 It is a schematic diagram of the architecture of application example 1 of the power secondary equipment provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] 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.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0067] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0068] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0069] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0070] Primary power equipment refers to high-voltage electrical equipment directly used in the production, transmission and distribution of electric energy. Secondary power equipment is auxiliary equipment for monitoring, measuring, controlling, regulating and protecting primary power equipment. Secondary power equipment includes measuring instruments, relays, operating switches, automatic devices, background computers, signal equipment, control cables and power supply devices.

[0071] However, the 4U cabinets, 6U cabinets, backplanes, and various boards in the commonly used power secondary equipment do not have uniformly defined connectors and interfaces, so the compatibility and scalability between power secondary equipment produced by different manufacturers are poor.

[0072] The VPX bus standard is a new generation of high-speed serial bus standards proposed by the VME International Trade Association (VITA) based on the VME bus. The OpenVPX system standard is a system definition standard that proposes the concept of "planes", which divides the system into five planes: expansion plane, data plane, control plane, management plane, and general plane. The OpenVPX system standard is mainly used in computer embedded systems and provides access standardization for computer embedded systems.

[0073] However, since power secondary equipment is mainly used in substations, there are various electromagnetic interferences in its application sites, such as transient electromagnetic interference generated by the separation / combination of high-voltage electrical equipment, transient electromagnetic interference generated by short-circuit faults, and magnetic fields, radiation fields, and electrostatic fields around electrical equipment. It is precisely because of the various electromagnetic interferences in the application of power secondary equipment that the OpenVPX system standard cannot be directly adopted when considering the interface standardization of power secondary equipment.

[0074] 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 connection standards and PowerVPX system architecture of power secondary equipment are unified through the PowerVPX system architecture, and the compatibility and scalability of power secondary equipment are improved; and by setting the electrical plane to transmit the strong electric signals in the power secondary equipment, and by setting the protection plane to transmit the single-ended signals such as the locking signal, alarm signal, and timing signal in the power secondary equipment, the reliability of the power secondary equipment in the strong electromagnetic interference scenario can be effectively improved.

[0075] The following is an introduction to the power secondary equipment based on the PowerVPX system architecture and its PowerVPX system architecture provided in the embodiments of the present application by means of specific embodiments.

[0076] See also Figure 1 , Figure 1 Schematic diagram of the PowerVPX system architecture of the power secondary equipment provided in the embodiment of the present application. Figure 1 As shown, the PowerVPX system architecture 1 includes a power plane 11, an electrical plane 12, a data plane 13, a protection plane 14, and a control plane 15. The power plane 11 is used to transmit and process power signals, the electrical plane 12 is used to transmit and process strong electrical signals, the data plane 13 is used to transmit and process high-speed signals, the protection plane 14 is used to transmit and process single-ended signals, and the control plane 15 is used to transmit and process differential signals.

[0077] 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 devices or between modules within power secondary devices.

[0078] 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, namely, the power signal, the strong power signal, the high-speed signal, the single-ended signal, and the differential signal. The five planes correspond to the transmission and processing channels of a type of signal.

[0079] In an 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 above-mentioned strong electric signal is the strong electric control signal required by the operating mechanism of the above-mentioned power secondary equipment, such as a 220V / 110V DC strong electric signal that controls the opening / closing of the operating mechanism. The above-mentioned high-speed signal is a data signal of real-time data with a transmission rate of 1Gbps or more transmitted between the above-mentioned power secondary equipment and equipment such as the control background system. The above-mentioned single-ended signal is a discrete signal such as a monitoring signal, slot number, alarm signal, and locking signal between the internal control module of the above-mentioned power secondary equipment and other functional modules. The above-mentioned differential signal refers to the control information between the internal control module of the power secondary equipment and other functional modules, and the transmission rate is differential data of 100Mbps to 500Mbps.

[0080] In the 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 power module outputs the working voltage required for the operation of other modules in the power secondary equipment, and the power plane inputs the required working voltage to each module, such as the working voltage required by the acquisition module, the working voltage required by the communication module, and the working voltage required by the input and output module. 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 gate. 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.

[0081] It should be noted that which modules are included in the above-mentioned secondary power equipment can be determined according to the actual functions of the secondary power equipment. For example, if the secondary power equipment is a measuring instrument, the secondary power equipment may include a power module, a control module and an acquisition module; for another example, if the secondary power equipment is a circuit breaker control device composed of a relay and an automatic device, the secondary power equipment may include a power 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 secondary power equipment is a device that integrates multiple functions such as measuring instruments, relays, and automatic devices, the secondary power equipment may include a power module, a control module, an acquisition module and an operating mechanism.

[0082] It can be seen from the above that in the embodiment of the present application, the PowerVPX system architecture of the power secondary equipment is divided into five planes: power plane, electrical plane, data plane, protection plane and 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. And based on the strong electromagnetic interference characteristics of the use scenarios of power secondary equipment, 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.

[0083] 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.

[0084] 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

[0085] 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.

[0086] 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.

[0087] In some embodiments,

[0088] See also Figure 2 , Figure 2 This is a schematic diagram of the structure of the power secondary equipment provided in the embodiment of the present application. Figure 2 As shown, the power secondary device 2 may include a backplane 21 and various functional boards 22. Each functional board 22 is plugged into the backplane 21.

[0089] The backplane 21 is used to provide transmission channels for power signals, strong power signals, high-speed signals, single-ended signals and differential signals respectively.

[0090] In the embodiment of the present application, the backplane 21 is arranged 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 21.

[0091] The above-mentioned 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, high-speed serial transmission (Gigabit Transceiver, GTX) buses, etc.

[0092] In the embodiment of the present application, each of the above-mentioned function boards 22 can be configured according to the actual function of the power secondary device 2. For example, if the above-mentioned power secondary device 2 is a measuring instrument, the above-mentioned function board 22 may include a power 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 2 is a circuit breaker control device composed of a relay and an automatic device, the above-mentioned function board may include a power 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 2 is a device integrating multiple functions such as a measuring instrument, a relay, and an automatic device, the above-mentioned function board 22 may include a power 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.

[0093] For example, see Figure 3 The above-mentioned functional board 22 may include a control board 221, a communication board 222, an acquisition board 223, an input board 224, an output board 225, an operation board 226 and a power board 227.

[0094] In a specific application, the control board 221 may be a CPU management board, the communication board 222 may be an optical communication board, the acquisition board 223 may be an AC voltage acquisition board and / or an AC current acquisition board, and the operation board 226 may include each phase operation board, such as an A-phase operation board, a B-phase operation board, and a C-phase operation board.

[0095] In an embodiment of the present application, by setting up transmission channels for various signals on the backplane and using the backplane to build the PowerVPX system architecture of the above-mentioned power secondary equipment, 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.

[0096] In one embodiment, see Figure 4 , Figure 4 This is a schematic diagram of the architecture of the power plane of the power secondary device provided in the embodiment of the present application. Figure 4 As shown, the functional board 22 includes a power board 227. That is, the power module includes the power board 227, which is used to generate an output power signal and output the power signal to other functional boards 22 through a power signal transmission channel provided by the backplane 21.

[0097] The power signal may be the working voltage required by each other module, such as 48V, 24V, 12V, 5V, etc. That is, on the power plane, the power board generates and outputs working voltages such as 48V, 24V, 12V, 5V, etc., to the control board 221, the communication board 222, the acquisition board 223, the input board 224, the output board 225, and the operation board 226.

[0098] In other embodiments, multiple power supply boards 227 can be selected to realize the function of the power plane, in which one power supply board 227 serves as the main power supply board, and one power supply board 227 serves as the auxiliary power supply board; or, different power supply boards 227 can output power signals with different voltage values, thereby realizing the function of the power plane.

[0099] 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.

[0100] In one embodiment, see Figure 5 , Figure 5 This is a schematic diagram of the electrical plane architecture of the power secondary equipment provided in the embodiment of the present application. Figure 5 As shown, the function board 22 includes a power board 227 , an operation board 226 , an acquisition board 223 and a control board 221 .

[0101] The power board 227 is used to output DC strong electric signals to the operation board 226; the acquisition board 223 is used to acquire 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 221 through the strong electric signal transmission channel provided by the backplane 21.

[0102] Among them, the high-voltage signal transmitted on the electrical plane can be output by the power board 227, that is, a DC high-voltage signal, including a DC 220V and / or DC 110V high-voltage signal. The power board 227 outputs a DC high-voltage signal to control the operation board 226 to execute the opening / closing action of the circuit breaker / knife switch to achieve electrical control.

[0103] In some application scenarios, the above-mentioned operation board includes an A-phase operation board 226a, a B-phase operation board 226b and a C-phase operation board 226c.

[0104] In specific applications, the power supply board 227 can output DC strong electric signals to the above-mentioned A-phase operating board 226a, the above-mentioned B-phase operating board 226b and the above-mentioned C-phase operating board 226c respectively, so as to realize the opening / closing action of the circuit breaker / knife switch of phase A through the above-mentioned A-phase operating board 226a card, realize the opening / closing action of the circuit breaker / knife switch of phase B through the above-mentioned B-phase operating board 226b, and realize the opening / closing action of the circuit breaker / knife switch of phase C through the C-phase operating board 226c.

[0105] Among them, the strong electric signal transmitted on the electrical plane can also be input by the acquisition board 223, that is, the acquisition board 223 acquires 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 221 (such as the CPU management board) on the above-mentioned electrical plane, thereby realizing the measurement of power parameters.

[0106] The low voltage signal is a voltage signal with a voltage range of 0 to 10V.

[0107] In some application scenarios, the acquisition board 223 includes an AC voltage acquisition board 223a and an AC current acquisition board 223b.

[0108] In a specific application, the AC voltage acquisition board 223a converts the 100V strong electric signal of the voltage transformer into a low voltage signal, and then transmits the collected value to the control board 221 through the electrical plane. The AC current acquisition board 223b also converts the voltage value of the 1A / 5A current transformer into a low voltage signal, and then transmits it to the control board 221.

[0109] In other embodiments, the electrical plane function can be realized by selecting the corresponding functional board according to the actual application scenario. For example, for the power secondary equipment with measurement requirements, only the acquisition board 223 and the control board 221 can be selected to realize the electrical plane function. For another example, for the power secondary equipment with automatic control requirements, the power board 227 and the operation board 226 can be selected to realize the electrical plane function.

[0110] 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.

[0111] In one embodiment, see Figure 6 , Figure 6 This is a schematic diagram of the architecture of the data plane of the power secondary equipment provided in the embodiment of the present application. Figure 6 As shown, the functional board 22 includes a communication board 222 and a control board 221. The communication module may include the communication board 222 and the control board 221. The communication board 222 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 221 through the high-speed signal transmission channel provided by the backplane 21.

[0112] 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.

[0113] In the data plane, high-speed signal transmission is realized through the communication board 222, so as to realize data interaction between the background system and the control board of the power secondary equipment.

[0114] In some application scenarios, the communication board may be an optical communication board.

[0115] In a specific application, the backplane 21 can realize data transmission between the communication board and the control board through high-speed serial transmission (Gigabit Transceiver, GTX).

[0116] In other embodiments, the data plane may use a serial bus such as a RapidIO high-speed serial bus to transmit high-speed signals.

[0117] In the embodiment of the present application, by constructing a high-speed signal transmission channel to achieve separation of the data channel and the control channel, the data plane can be used to achieve high-speed transmission of signals.

[0118] In one embodiment, see Figure 7 , Figure 7This is a schematic diagram of the architecture of the protection plane of the power secondary equipment provided in the embodiment of the present application. Figure 7 As shown, the functional board 22 includes a control board 221, a communication board 222, an acquisition board 223, an input board 224, an output board 225, an operation board 226 and a power board 227; the control board 221 performs single-ended signal interaction with the communication board 222, the acquisition board 223, the input board 224, the output board 225, the operation board 226 and the power board 227 through the protection plane.

[0119] Among them, a single-ended signal refers to a signal transmitted through a signal line, including but not limited to discrete signals such as monitoring signals, slot numbers, alarm signals, and locking signals between the control board 221 and other functional boards. For example, the monitoring signal between the control board 221 and the input board 224, the locking signal between the control board 221 and the operation board 226, and the control board 221 obtaining the slot numbers corresponding to each functional board.

[0120] The protection plane enables the control board to monitor and control other boards of the power secondary equipment, thereby achieving inter-board monitoring and inter-board maintenance.

[0121] In a specific application, the input board 224 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 output board 225 is used to output the output contact through the relay to realize the opening / closing of the knife switch.

[0122] In some application scenarios, the control board 221 is respectively connected to the communication board 222, the acquisition board 223, the input board 224, the output board 225, the operation board 226 and the power board 227 through the CAN bus.

[0123] Among them, the CAN bus is arranged through the backplane 21, 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.

[0124] It should be noted that the above-mentioned control board 221 can also realize single-ended signal transmission with the communication board 222, the acquisition board 223, the input board 224, the output board 225, the operation board 226 and the power board 227 through other data buses, such as RS485 bus.

[0125] In other embodiments, the protection plane function can be implemented by selecting the corresponding functional board according to the actual application scenario. For example, for the power secondary equipment with measurement requirements, when implementing the protection plane function, the control board 221 can only perform single-ended signal transmission with the acquisition board 223 and the power board 227. For another example, for the power secondary equipment with automatic control requirements, when implementing the protection plane function, the control board 221 can only perform single-ended signal transmission with the power board 227 and the operation board 226.

[0126] In one embodiment, see Figure 8 , Figure 8 This is a schematic diagram of the control plane architecture of the power secondary equipment provided in the embodiment of the present application. Figure 8 As shown, the functional board 22 includes a control board 221 , a communication board 222 , an acquisition board 223 , an input board 224 and an output board 225 .

[0127] The control board 221 interacts with the communication board 222 , the acquisition board 223 , the input board 224 and the output board 225 via the control plane through differential signals.

[0128] 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.

[0129] In some application scenarios, the control board 221 is also used to perform program upgrades on the communication board 222 , the acquisition board 223 , the input board 224 , and the output board 225 , respectively.

[0130] That is, the control board 221 transmits the upgrade data (also a differential signal) for program upgrade of the communication board 222, the acquisition board 223, the input board 224 and the output board 225 through the control plane, thereby realizing the upgrade control of other functional boards.

[0131] In some application scenarios, the control board 221 is respectively connected to the communication board 222, the acquisition board 223, the input board 224 and the output board 225 through a low-voltage differential signal (LVDS) bus.

[0132] 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 secondary power equipment with measurement requirements, the control board 221 can only implement differential signal transmission with the acquisition board 223 when implementing the control plane function.

[0133] Based on the above, the following describes the functional boards and cards related to each plane of the power secondary equipment provided in the embodiment of the present application in combination with Example 1. Fig. 9 In Example 1, taking the functional boards of the above-mentioned power secondary equipment including the CPU management board 221a, the optical communication board 222a, the acquisition board 223, the output board 224, the input board 225, the operation board 225 and the power board 227 as an example, the data transmission relationship of the power plane, electrical plane, data plane, protection plane and control plane provided in the embodiment of the present application is illustrated.

[0134] like Fig. 9 As shown, in the power plane, the power board 227 outputs power signals to the above-mentioned CPU management board 221a, the communication board 222, the acquisition board 223, the output board 224, the input board 225, and the operation board 226, respectively, to supply power to the CPU management board 221a, the communication board 222, the acquisition board 223, the output board 224, the input board 225, and the operation board 226. In the electrical plane, the power board 227 outputs strong electric signals to the operation board 226, and the acquisition board 223 outputs strong electric signals to the CPU management board 221a. In the data plane, the CPU management board 221a and the communication board 222 transmit high-speed signals. In the protection plane, the CPU management board 221a transmits single-ended signals with the communication board 222, the acquisition board 223, the output board 224, the input board 225, the operation board 226, and the power board 227. On the control plane, the CPU management board 221 a transmits differential signals with the communication board 222 , the acquisition board 223 , the output board 224 , and the input board 225 , respectively.

[0135] It can be seen from the above that the power secondary equipment provided in 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. And based on the strong electromagnetic interference characteristics of the use scenarios of power secondary equipment, 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.

[0136] In one embodiment of the present application, a power board slot and a plurality of data board slots may be provided on the backplane 21 of the above-mentioned power secondary device.

[0137] The power board slot is used to plug in the power board.

[0138] Each of the above-mentioned data board slots is used to plug in any functional board among the control board, input board, output board, communication board, acquisition board and operation board.

[0139] In some embodiments, the data connection channels of several of the data board slots are equal.

[0140] The backplane may be provided with a plurality of power board slots to realize power redundancy design. The plurality of data board slots may be arranged in rows and columns on the backplane 21, so that the overall layout of the backplane 21 is neat and easy to connect.

[0141] 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 are provided with the same data board card slot, the compatibility and scalability of the power secondary equipment can be improved.

[0142] In one embodiment, the distribution interval of the above-mentioned plurality of data board slots is greater than a preset interference distance.

[0143] 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.

[0144] When the backplane is laid out, the distribution intervals between the data board slots are set larger to minimize the coupling between the planes.

[0145] In one embodiment, the above-mentioned power secondary equipment also includes a chassis; the backplane is arranged in the chassis.

[0146] In a specific application, the above-mentioned chassis includes but is not limited to a 3U chassis, a 4U chassis and a 6U chassis.

[0147] In the several embodiments provided in the present application, it should be understood that the disclosed devices and equipment can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0148] Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A PowerVPX system architecture, characterized in that: Applied to power secondary equipment, the PowerVPX system architecture includes: 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.

2. A power secondary device, characterized in that: include: 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.

3. The power secondary device according to claim 2, characterized in that: 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.

4. The power secondary device according to claim 3, characterized in that: 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.

5. The power secondary device according to claim 3, characterized in that: 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.

6. The power secondary device according to claim 5, characterized in that: The acquisition board includes an AC current acquisition board and an AC voltage acquisition board.

7. The power secondary device according to claim 5, characterized in that: The operation board includes an A-phase operation board, a B-phase operation board and a C-phase operation board.

8. The power secondary device according to claim 3, characterized in that: 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.

9. The power secondary device according to claim 3, characterized in that: 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.

10. The power secondary device according to claim 9, characterized in that: 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.

11. The power secondary device according to claim 3, characterized in that: 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.

12. The power secondary device according to claim 11, characterized in that: 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.

13. The power secondary device according to claim 11 or 12, characterized in that: 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.

14. The power secondary device according to any one of claims 3 to 13, characterized in that: 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.

15. The power secondary device according to claim 14, characterized in that: The data connection channels of the plurality of data board slots are equal.

16. The power secondary device according to claim 14 or 15, characterized in that: The distribution interval of a plurality of the data board slots is greater than a preset interference distance.

17. The power secondary device according to any one of claims 3 to 16, characterized in that: The power secondary equipment also includes a chassis; The backplane is arranged in the chassis.

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