CN217607813U - High-speed three-optical-port semi-physical controller based on AURORA protocol - Google Patents
High-speed three-optical-port semi-physical controller based on AURORA protocol Download PDFInfo
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- CN217607813U CN217607813U CN202221671917.0U CN202221671917U CN217607813U CN 217607813 U CN217607813 U CN 217607813U CN 202221671917 U CN202221671917 U CN 202221671917U CN 217607813 U CN217607813 U CN 217607813U
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Abstract
The utility model discloses a high-speed three-optical-port semi-physical controller based on AURORA protocol, which comprises a sampling plate, an opening plate, a control plate and a data processing plate, wherein the input end of the sampling plate is connected with the output end of an RTDS simulation plate, and the output end is connected with the input end of the control plate; the input end of the opening plate is connected with the output end of the RTDS opening plate, and the output end of the opening plate is connected with the input end of the control plate; the output end of the opening plate is connected with the input end of the RTDS opening plate, and the input end of the opening plate is connected with the output end of the control plate; the control panel is connected with the RTDS communication adapter plate in a bidirectional mode through the data processing board. The semi-physical controller can be directly connected with the RTDS, real-time communication between the controller and the RTDS is realized, a special power amplifier and a communication-related redundant photoelectric conversion plate, a communication switching plate, a power supply module and a chassis are not needed, the structure and the wire arrangement wiring of the controller are simplified, and the cost of the controller is reduced.
Description
Technical Field
The utility model belongs to the technical field of power electronics, a high-speed three optical ports semi-physical controller based on AURORA agreement is related to.
Background
With the improvement of the permeability of new energy such as photovoltaic energy, wind power and the like in a power grid, the novel power electronic equipment gradually replaces a traditional generator set to become a power supply unit of the power grid, and the roles of the traditional energy and the new energy in a power system are gradually changed. Different from the characteristics of strong inertia and strong robustness of the traditional generator, the power electronic equipment has high response speed and poor robustness, and the stability of a power grid is greatly influenced by the access of the power electronic equipment in a large range. Especially, with the gradual popularization of extra-high voltage in the main network, analyzing the influence of power electronic equipment on the large power grid becomes an important concern for power enterprises. Iterative upgrade of an IGBT (insulated gate bipolar transistor) switching device and a control chip continuously promotes upgrade and transformation of power electronic equipment, an application scene of the equipment is expanded from low voltage and small capacity to high voltage and large capacity, and a traditional workshop-level test platform cannot meet test requirements of the power electronic equipment.
At present, the semi-physical controller of the mainstream manufacturer is interconnected with a semi-physical simulation platform (Real Time Digital Simulator, abbreviated as RTDS) by adding a power amplifier, a communication adapter board card or an intelligent optical fiber interface box. If some manufacturers use power amplifiers to convert the RTDS analog quantity, and the analog quantity signal is converted into a signal that can be directly connected to the controller through the power amplifiers, the method needs to provide special power amplification equipment, which has high cost, complex wiring and large platform volume. In addition, in order to realize the communication between the controller and the RTDS optical fiber AURORA, some manufacturers adopt schemes of a communication adapter plate and a photoelectric conversion plate to realize the communication with the RTDS. Firstly, a pulse distribution board (a board card for sending pulse driving signals to a power switch device IGBT) of a controller is connected with a photoelectric conversion board through an optical fiber, the photoelectric conversion board converts the pulse driving optical signals into electric signals, the electric signals are connected to a communication adapter board through a flat cable, the communication adapter board collects the electric signals and forms data frames according to an AURORA protocol, and the data frames are communicated with RTDS through a high-speed optical fiber. By adopting the mode, the controller needs to be additionally provided with the photoelectric conversion plate, the communication adapter plate, the special power supply module and the case, the structure of the controller is complex, the wire arrangement is more and difficult to wire, and the anti-interference capability is weak because signals are transmitted through the wire arrangement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve and need realize communicating through power amplifier, photoelectric conversion board and communication keysets etc. between the controller of prior art and the simulation platform, lead to the problem of the complicated, the more wiring difficulty of winding displacement of framework of controller, provide a three optical port semi-physical object controllers at a high speed based on AURORA agreement.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a high-speed three-optical-port semi-physical controller based on an AURORA protocol comprises a sampling plate, an opening plate, a control plate and a data processing plate;
the input end of the sampling plate is connected with the output end of the RTDS simulation plate, and the output end of the sampling plate is connected with the input end of the control plate;
the input end of the opening plate is connected with the output end of the RTDS opening plate, and the output end of the opening plate is connected with the input end of the control panel;
the output end of the opening plate is connected with the input end of the RTDS opening plate, and the input end of the opening plate is connected with the output end of the control plate;
the control panel is in bidirectional connection with the RTDS communication adapter plate through the data processing plate.
The utility model discloses a further improvement lies in:
the data processing board is loaded with a XILINX FPGA.
The data processing board comprises a plurality of high-speed optical fiber communication switching interfaces for realizing the communication between the control board and the RTDS.
The plurality of high-speed optical fiber communication switching ports comprise a first high-speed optical fiber communication switching port, a second high-speed optical fiber communication switching port, a third high-speed optical fiber communication switching port and a fourth high-speed optical fiber communication switching port; the first, second and third high-speed optical fiber communication switching ports are external optical ports and are respectively connected with the RTDS communication switching board, and the fourth high-speed optical fiber communication switching port is an internal optical port and is connected with the control board.
The data processing board further comprises a clock unit and a power supply unit.
The sampling board is connected to the DB37 terminal, so that the controller is plugged into the analog board of the RTDS via the DB 37.
The maximum value of the sampling plate input alternating current signal is 16V.
The number of sampling plates set in the controller is three.
Compared with the prior art, the utility model discloses following beneficial effect has:
through a high-speed three optical ports semi-physical controller based on AURORA agreement, including the sampling board, open into the board, open out the board, control panel and data processing board for semi-physical controller can directly be connected with RTDS, realizes controller and RTDS's real-time communication, does not need special power amplifier and communication relevant redundant photoelectric conversion board, communication keysets, power module and quick-witted case, has simplified the structure and the winding displacement wiring of controller, has reduced the cost of controller.
Furthermore, a XILINX FPGA chip is carried on the data processing board, and a plurality of pairs of high-speed optical fiber communication switching ports are externally expanded, so that the semi-physical controller can be supported to simultaneously carry out high-speed communication with a plurality of communication ports, and the signal transmission speed between the semi-physical controller and the RTDS is improved.
Further, on will sampling the board through the stub connection DB37 terminal, controller and RTDS analog board can peg graft through the DB37 terminal, through the DB37 terminal of high integration, transmission distance and the interference killing feature of expansion simulation sampling volume that can be very big have improved interference killing feature, whole integrated level and the installation rate of semi-physical controller.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.
FIG. 1 is a schematic diagram of the connection between the semi-physical controller and the RTDS according to the present invention;
fig. 2 is a data flow diagram of the semi-physical controller of the present invention;
fig. 3 is a diagram of a semi-physical test platform of a conventional power electronic device.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1 and fig. 2, it is respectively the utility model discloses a semi-physical controller and RTDS connect schematic diagram and semi-physical controller dataflow graph, semi-physical controller includes the sampling board, open the board, control panel and data processing board, the input of sampling board is connected with the output of RTDS analog board, the output is connected with the input of control panel, sampling board samples variables such as grid-connected point voltage, electric current and submodule voltage that RTDS generated, satisfy the sampling demand of current power electronic equipment, can change the transformation ratio of sampling board through the resistance of changing the operational amplifier circuit, make the digital quantity that the same system voltage corresponds unanimously; the input end of the switching-in board is connected with the output end of the RTDS switching-out board, the output end of the switching-in board is connected with the input end of the control board, and the switching-in board receives digital switching values such as circuit breaker switching-off feedback signals and the like sent by the RTDS; the output end of the switch-on board is connected with the input end of the RTDS switch-on board, the input end of the switch-on board is connected with the output end of the control board, and the switch-on board transmits digital switching values such as semi-physical model circuit breakers, isolation switches, ground switch on-off signals and the like to the RTDS transmission controller; the control panel is in bidirectional connection with an RTDS communication adapter panel through a data processing panel, the data processing panel is an interactive unit of a semi-physical controller and an RTDS and has functions of data processing and communication adapter of power electronic equipment, the data processing panel comprises a plurality of high-speed optical fiber communication adapter ports, wherein a first high-speed optical fiber communication adapter port, a second high-speed optical fiber communication adapter port and a third high-speed optical fiber communication adapter port are respectively connected with the RTDS communication adapter panel, carried XILINX FPGA hardware resources are adopted, AURORA communication between the RTDS and the RTDS is realized through an exemplified hardware IP core, the data processing panel uses a high-reliability and convenient communication protocol matching function, data of the RTDS can be correctly received, received and analyzed through configuration of AURORA IP core parameters and protocol point positions, pulse driving signals are transmitted to a power switch device of the RTDS and received voltage, current and state information transmitted by the RTDS, a fourth high-speed optical fiber communication adapter port is connected with the control panel, voltage and current signals obtained by sampling are transmitted to the control panel, and signals transmitted by the control panel are received.
In order to improve the anti-interference capability, the integral integration degree and the installation speed of the semi-physical controller, the sampling plate is connected to the DB37 terminal through a short-circuit wire, the controller and the RTDS simulation plate can be connected through the DB37 terminal in an inserted mode, the high-integration DB37 terminal is adopted, and the transmission distance and the anti-interference capability of the simulation sampling amount are expanded.
Referring to fig. 3, the semi-physical testing platform for the traditional power electronic equipment comprises an RTDS and a semi-physical controller, wherein a power amplifier is used for connecting an RTDS analog board and a sampling board of the semi-physical controller, the power amplifier is used for converting an RTDS analog quantity, and an analog quantity signal is converted into a signal which can be directly connected with the controller through the power amplifier. In a traditional test platform, in order to realize communication between a semi-physical controller and an RTDS (real time digital system) optical fiber AURORA (autonomous optical fiber), firstly, a pulse distribution plate (a board card for sending a pulse driving signal to an IGBT (insulated gate bipolar translator) of the semi-physical controller) is connected with a photoelectric conversion plate through an optical fiber, the photoelectric conversion plate converts the pulse driving optical signal into an electrical signal, the electrical signal is connected to a communication adapter plate through a flat cable, the communication adapter plate collects the electrical signal and forms a data frame according to an AURORA protocol, and the data frame is communicated with the RTDS through a high-speed optical fiber. When the mode is adopted, the semi-physical controller needs to be additionally provided with the photoelectric conversion plate, the communication adapter plate, the special power supply module and the case, so that the semi-physical controller is complex in structure, more in wire arrangement and difficult in wiring, and the anti-interference capability of the system is weaker due to the fact that signals are transmitted through the wire arrangement.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A high-speed three-optical-port semi-physical controller based on AURORA protocol is characterized by comprising a sampling plate, an opening plate, a control plate and a data processing plate;
the input end of the sampling plate is connected with the output end of the RTDS simulation plate, and the output end of the sampling plate is connected with the input end of the control plate;
the input end of the opening plate is connected with the output end of the RTDS opening plate, and the output end of the opening plate is connected with the input end of the control panel;
the output end of the opening plate is connected with the input end of the RTDS opening plate, and the input end of the opening plate is connected with the output end of the control plate;
the control panel is in bidirectional connection with the RTDS communication adapter plate through the data processing plate.
2. The AURORA-protocol-based high-speed three-optical-port semi-physical controller as claimed in claim 1, wherein the data processing board is loaded with a XILINX FPGA.
3. The AURORA-protocol-based high-speed three-optical-port semi-physical controller according to claim 1 or 2, wherein the data processing board comprises a plurality of high-speed optical fiber communication switching ports for realizing communication between the control board and the RTDS.
4. The AURORA protocol-based high-speed three-optical-port semi-physical controller according to claim 3, wherein the plurality of high-speed optical fiber communication switching ports comprise a first high-speed optical fiber communication switching port, a second high-speed optical fiber communication switching port, a third high-speed optical fiber communication switching port and a fourth high-speed optical fiber communication switching port; the first, second and third high-speed optical fiber communication switching interfaces are external optical interfaces and are respectively connected with an RTDS communication switching board, and the fourth high-speed optical fiber communication switching interface is an internal optical interface and is connected with a control board.
5. The AURORA-protocol-based high-speed three-optical-port semi-physical controller according to claim 1 or 2, wherein the data processing board further comprises a clock unit and a power supply unit.
6. The AURORA protocol-based high-speed three-optical-port semi-physical controller as claimed in claim 1, wherein the sampling board is connected to a DB37 terminal, so that the controller is plugged with an analog board of an RTDS through the DB 37.
7. A high-speed three-optical-port semi-physical controller based on AURORA protocol according to claim 1 or 6, wherein the sampling board inputs a maximum value of 16V AC signal.
8. A high-speed three-optical-port semi-physical controller based on AURORA protocol according to claim 1 or 6, wherein the number of the sampling boards arranged in the controller is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221671917.0U CN217607813U (en) | 2022-06-30 | 2022-06-30 | High-speed three-optical-port semi-physical controller based on AURORA protocol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221671917.0U CN217607813U (en) | 2022-06-30 | 2022-06-30 | High-speed three-optical-port semi-physical controller based on AURORA protocol |
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| Publication Number | Publication Date |
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| CN217607813U true CN217607813U (en) | 2022-10-18 |
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| CN202221671917.0U Active CN217607813U (en) | 2022-06-30 | 2022-06-30 | High-speed three-optical-port semi-physical controller based on AURORA protocol |
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| CN (1) | CN217607813U (en) |
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