CN212658953U - Direct current transmission simulation platform based on RTDS - Google Patents
Direct current transmission simulation platform based on RTDS Download PDFInfo
- Publication number
- CN212658953U CN212658953U CN202021360507.5U CN202021360507U CN212658953U CN 212658953 U CN212658953 U CN 212658953U CN 202021360507 U CN202021360507 U CN 202021360507U CN 212658953 U CN212658953 U CN 212658953U
- Authority
- CN
- China
- Prior art keywords
- control
- layer
- rtds
- simulation
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
An RTDS-based direct current transmission simulation platform, comprising: the system comprises an operator control layer, a field layer and an RTDS simulator; the operator control layer is connected with the control layer through an in-station local area network and transmits a control instruction to the control layer; the control layer is connected with the field layer and transmits the command of the switching action and the information of the switching state, the alternating current quantity and the direct current quantity to the field layer; the field layer is connected with the RTDS simulation layer, converts the optical signal of the RTDS simulation layer into an electric signal and sends the electric signal to the control layer; the RTDS simulator comprises a layered access simulation subsystem and a hybrid cascade simulation subsystem, and switching between the layered access simulation subsystem and the hybrid cascade simulation subsystem is realized by selecting DFTs in different engineering original files. The simulation platform reasonably distributes the functions of the pole control layer and the valve group layer of the control system, improves the expansibility of a control system device, achieves the purpose of being applied to a conventional direct current simulation system and a hybrid cascade simulation system, and saves the test research cost and the reconstruction cost.
Description
Technical Field
The utility model relates to a direct current transmission emulation technical field, concretely relates to direct current transmission simulation platform based on RTDS.
Background
The conventional direct current transmission system has the risk of commutation failure when being connected into a weak alternating current power grid, and the problem of commutation failure can be well solved due to the appearance of a flexible direct current transmission system in recent years. Compared with the traditional direct current transmission system, the flexible direct current transmission system has the advantages of numerous power electronic devices, high manufacturing cost and small transmission capacity. By combining the advantages of the two, the hybrid direct-current power transmission system becomes a new research hotspot, and different topological structures such as a two-end hybrid direct-current power transmission system, a multi-end hybrid direct-current power transmission system, a hybrid cascade direct-current power transmission system and the like appear in sequence.
The existing simulation platform can only be applied to a conventional direct-current power transmission system or a flexible direct-current power transmission system, and due to the fact that the control device is configured in a customized mode according to different topological structures, switching among different simulation systems needs to redesign the original control device, and time cost and economic cost of simulation research are undoubtedly increased.
According to the prior technical scheme, one set of control device can only be applied to a direct current power transmission system, and the simulation system is difficult to transform and inconvenient to expand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide a simulation platform based on RTDS direct current transmission system, can be applied to conventional direct current transmission system and receive the end and mix and cascade the direct current transmission system, through rationalizing the distribution to control system utmost point layer and valves layer function, improve the expansibility of control system device, realize being applied to conventional direct current simulation system and mixing the purpose of cascading simulation system, save experimental research cost and reform transform the cost.
In order to achieve the above object, the utility model provides a direct current transmission simulation platform based on RTDS, include: the system comprises an operator control layer, a field layer and an RTDS simulator;
the operator control layer is connected with the control layer through an in-station local area network and transmits a control instruction to the control layer;
the control layer is connected with the field layer and transmits a switching action command and information of switching state, alternating current quantity and direct current quantity to the field layer;
the field layer is connected with the RTDS simulation layer, converts an optical signal of the RTDS simulation layer into an electric signal and sends the electric signal to the control layer;
the RTDS simulator comprises a layered access simulation subsystem and a hybrid cascade simulation subsystem, and switching between the layered access simulation subsystem and the hybrid cascade simulation subsystem is realized by selecting DFT files in different engineering original files.
Further, the operation personnel control layer includes engineer workstation, operation personnel workstation, record ripples workstation and switch, engineer workstation, operation personnel workstation and record ripples workstation pass through the switch with the control layer is connected.
Further, the control layer comprises an alternating current protection device, a pole protection device, a controllable lightning arrester control device, a pole control device, a conventional LCC valve bank control device and a flexible VSC valve bank control device.
Furthermore, each device in the control layer adopts a dual redundant configuration and comprises two sets of same control devices, wherein one set of control devices is in an on-duty state, and the other set of control devices is in a standby state.
Further, the system comprises a redundant switching device for controlling optical fiber communication, and the on-duty and standby state switching of the two sets of control devices is executed.
Further, the field layer comprises a switching value input board GTDI, a switching value output board GTDO, an analog value output board GTAO and a protocol conversion port device HSMD interface device, and the GTDI, GTDO and GTAO interface devices convert optical signals of the RTDS simulator into electric signals and send the electric signals to the control layer; the HSMD interface device converts the communication protocol into AURORA protocol.
Furthermore, the flexible VSC valve group control comprises a direct-current voltage control unit, an active power control unit, an alternating-current voltage control unit, a reactive power control unit, a tap control unit, a valve cooling control unit, a switch interlocking unit and a sequence control unit.
Further, the conventional LLC valve bank control apparatus includes a dc voltage control unit, a dc current control unit, a dc power control unit, a γ angle control unit, a tap control unit, a valve cooling control unit, an ac filter on/off unit, a switch interlock unit, and a sequence control unit.
Furthermore, the pole control device comprises a valve group unlocking and locking setting unit, wherein the valve group unlocking and locking setting unit sets the priority of each valve group unlocking according to the control modes of accessing different valve groups, so that the voltage control valve group is unlocked before the power control valve group, the inverter valve group is unlocked before the rectifier valve group, the power control valve group is locked before the voltage control valve group, and the rectifier valve group is locked before the inverter valve group.
Further, the pole control device communicates with one or more valve bank control devices via an IFC bus.
To sum up, the utility model provides a direct current transmission simulation platform based on RTDS, include: the system comprises an operator control layer, a field layer and an RTDS simulator; the operator control layer is connected with the control layer through an in-station local area network and transmits a control instruction to the control layer; the control layer is connected with the field layer and transmits a switching action command and information of switching state, alternating current quantity and direct current quantity to the field layer; the field layer is connected with the RTDS simulation layer, converts the optical signal of the RTDS simulation layer into an electric signal and sends the electric signal to the control layer; the RTDS simulator comprises a layered access simulation subsystem and a hybrid cascade simulation subsystem, and switching between the layered access simulation subsystem and the hybrid cascade simulation subsystem is realized by selecting DFT files in different engineering original files. The simulation platform reasonably distributes the functions of the control system pole layer and the valve group layer, improves the expansibility of a control system device, achieves the purpose of being applied to a conventional direct current simulation system and a hybrid cascade simulation system, and saves the test research cost and the reconstruction cost.
Drawings
Fig. 1 is a block diagram of a RTDS-based dc power transmission simulation platform according to an embodiment of the present invention;
fig. 2 is a block diagram of a pole control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The utility model provides a direct current transmission simulation platform based on RTDS (English name real time digital simulation system, real-time digital simulation system), as shown in FIG. 1, include: the system comprises a running personnel control layer, a field layer and an RTDS simulator. The operator control layer is connected with the control layer through the local area network in the station and transmits the control instruction to the control layer. The control layer is connected with the field layer and transmits the command of the switching action and the information of the switching state, the alternating current quantity and the direct current quantity to the field layer. The field layer is connected with the RTDS simulation layer, converts the optical signal of the RTDS simulation layer into an electric signal and sends the electric signal to the control layer. The RTDS simulator comprises a layered access simulation subsystem and a hybrid cascade simulation subsystem, and switching between the layered access simulation subsystem and the hybrid cascade simulation subsystem is realized by selecting DFT files in different engineering original files.
Further, the operation personnel control layer includes engineer workstation, operation personnel workstation, record ripples workstation and switch, engineer workstation, operation personnel workstation and record ripples workstation pass through the switch in the station LAN or diagnose debug LAN under with control layer communication is connected. The engineering workstation is responsible for compiling and modifying a control protection program of the simulation platform, the operating personnel workstation is responsible for monitoring the operating condition of each part of the simulation platform, and the wave recording workstation is responsible for receiving test data of the simulation platform.
Further, the control layer comprises an alternating current protection device, a pole protection device, a controllable lightning arrester control device, a pole control device, a commutation type converter LCC valve set control device and a voltage source type converter VSC valve set control device. Each control device receives the alternating current and/or direct current and the switching state from the field layer and sends corresponding switching actions to an interface of the field layer according to a control strategy. The control protection devices verify whether the control protection logic function reaches the design expectation or not by approaching the actual engineering condition to the maximum extent, the alternating current protection devices are used for verifying the logic of the alternating current protection function, and the pole protection devices are used for verifying the protection functions of the pole protection areas and the valve protection area; the pole control device is responsible for the coordinated and stable operation between the pole control device and the pole control device, the valve group control device is responsible for the operation control of a single valve group, and the controllable lightning arrester control device controls the switching of the controllable lightning arrester by receiving a controllable lightning arrester input instruction sent by the pole control device.
Furthermore, each device in the control layer adopts a dual redundant configuration and comprises two sets of same control devices, wherein one set of control devices is in an on-duty state, and the other set of control devices is in a standby state.
Furthermore, the system comprises a redundant switching device for controlling optical fiber communication so as to execute the on-duty and standby state switching of the two sets of control devices.
By adopting dual redundancy configuration, the high-speed redundancy switching device based on control optical fiber communication is provided for realizing the on-duty and standby state switching of two sets of control systems, realizing the high-speed stable switching of the two sets of systems and avoiding the shutdown of the converter station caused by the failure of a single element.
Further, the field layer comprises a switching value input board GTDI, a switching value output board GTDO, an analog value output board GTAO and a protocol conversion port device HSMD, and the GTDI, GTDO and GTAO interface devices convert optical signals of the RTDS simulator into electric signals and send the electric signals to the control layer; the HSMD interface device converts TDM, IEC600044-8, IFC and other communication protocols into AURORA protocol.
Furthermore, the flexible VSC valve group control comprises a direct-current voltage control unit, an active power control unit, an alternating-current voltage control unit, a reactive power control unit, a tap control unit, a valve cooling control unit, a switch interlocking unit and a sequence control unit.
Further, the conventional LLC valve bank control apparatus includes a dc voltage control unit, a dc current control unit, a dc power control unit, a γ angle control unit, a tap control unit, a valve cooling control unit, an ac filter on/off unit, a switch interlock unit, and a sequence control unit.
Furthermore, the pole control device comprises a valve group unlocking and locking setting unit, wherein the valve group unlocking and locking setting unit sets the priority of each valve group unlocking according to the control modes of accessing different valve groups, so that the voltage control valve group is unlocked before the power control valve group, the inverter valve group is unlocked before the rectifier valve group, the power control valve group is locked before the voltage control valve group, and the rectifier valve group is locked before the inverter valve group.
Further, the pole control device communicates with one or more valve bank control devices via an IFC bus.
As shown in fig. 2, the system comprises a sending end polar control device a/B, which communicates with a corresponding high-end valve group control a/B and a corresponding low-end valve group control a/B through a custom fiber protocol; the receiving end polar control device A/B communicates with the corresponding high-end valve group control A/B and low-end valve group control A/B through a self-defined optical fiber protocol. The pole control device A/B is in communication connection with the corresponding station control device A/B through a custom fiber protocol, and the station control devices A/B are in direct communication through a universal protocol fiber. Under normal conditions, when a receiving end pole control is communicated with a low end valve bank, a conventional valve bank or a flexible-direct parallel valve bank can be selected to be accessed, when the pole 1 and the pole 2 of the inverter station are accessed into the conventional valve bank, namely, the pole 1 and the pole 2 of the inverter station are connected with the pole two, and when the pole 2 and the pole 2 of the inverter station are connected with the pole five, the platform is switched into the conventional extra-high voltage layered access simulation platform through an engineer workstation modification program, and simulation research of an extra-high voltage layered access system can be carried out. When the pole 1 and pole 2 low-end valve banks of the inverter station are connected into the flexible direct parallel valve bank, namely the valve bank is connected with the valve bank, and the valve bank is connected with the valve bank, the platform is switched into an extra-high voltage hybrid cascade simulation platform through an engineer workstation modification program, and simulation research of an extra-high voltage hybrid cascade system can be carried out.
To sum up, the utility model provides a direct current transmission simulation platform based on RTDS, include: the system comprises an operator control layer, a field layer and an RTDS simulator; the operator control layer is connected with the control layer through an in-station local area network and transmits a control instruction to the control layer; the control layer is connected with the field layer and transmits a switching action command and information of switching state, alternating current quantity and direct current quantity to the field layer; the field layer is connected with the RTDS simulation layer, converts the optical signal of the RTDS simulation layer into an electric signal and sends the electric signal to the control layer; the RTDS simulator comprises a layered access simulation subsystem and a hybrid cascade simulation subsystem, and switching between the layered access simulation subsystem and the hybrid cascade simulation subsystem is realized by selecting DFT files in different engineering original files. The simulation platform reasonably distributes the functions of the control system pole layer and the valve group layer, improves the expansibility of a control system device, achieves the purpose of being applied to a conventional direct current simulation system and a hybrid cascade simulation system, and saves the test research cost and the reconstruction cost.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A direct current transmission simulation platform based on RTDS is characterized by comprising: the system comprises an operator control layer, a field layer and an RTDS simulator;
the operator control layer is connected with the control layer through an in-station local area network and transmits a control instruction to the control layer;
the control layer is connected with the field layer and transmits a switching action command and information of switching state, alternating current quantity and direct current quantity to the field layer;
the field layer is connected with the RTDS simulation layer, converts an optical signal of the RTDS simulation layer into an electric signal and sends the electric signal to the control layer;
the RTDS simulator comprises a layered access simulation subsystem and a hybrid cascade simulation subsystem, and switching between the layered access simulation subsystem and the hybrid cascade simulation subsystem is realized by selecting DFT files in different engineering original files.
2. The RTDS-based direct current transmission simulation platform according to claim 1, wherein the operator control layer comprises an engineer workstation, an operator workstation, a wave recording workstation and a switch, and the engineer workstation, the operator workstation and the wave recording workstation are connected to the control layer through the switch.
3. The RTDS-based direct current transmission simulation platform according to claim 1 or 2, wherein the control layer comprises an alternating current protection device, a pole protection device, a controllable lightning arrester control device, a pole control device, an LCC valve pack control device and a flexible VSC valve pack control device.
4. An RTDS-based DC power transmission simulation platform according to claim 3 wherein each device in the control layer is in a dual redundant configuration comprising two sets of identical control devices, one set being on duty and the other set being standby.
5. An RTDS-based DC power transmission simulation platform according to claim 4 including redundant switching means for controlling fiber optic communications, performing on-duty, standby state switching of said two sets of control means.
6. The RTDS-based DC power transmission simulation platform according to claim 1, wherein the field layer comprises a switching value input board GTDI, a switching value output board GTDO, an analog output board GTAO, and a protocol conversion interface device HSMD interface device, and the GTDI, GTDO, and GTAO interface devices convert optical signals of the RTDS simulator into electric signals and send the electric signals to the control layer; the HSMD interface device converts the communication protocol into AURORA protocol.
7. An RTDS-based DC power transmission simulation platform according to claim 3 wherein the flexible VSC valve pack control comprises a DC voltage control unit, an active power control unit, an AC voltage control unit, a reactive power control unit, a tap control unit, a valve cooling control unit, a switch interlock unit and a sequence control unit.
8. The RTDS-based dc power transmission simulation platform according to claim 3, wherein the LCC valve group control means comprises a dc voltage control unit, a dc current control unit, a dc power control unit, a γ angle control unit, a tap control unit, a valve cooling control unit, an ac filter on/off unit, a switch interlock unit, and a sequence control unit.
9. The RTDS-based direct current transmission simulation platform according to claim 3, wherein the pole control device comprises a valve bank unblocking setting unit, the valve bank unblocking setting unit sets the priority of each valve bank unblocking according to the control mode of accessing different valve banks, so that the control voltage valve bank is unlocked before the control power valve bank, the inverter valve bank is unlocked before the rectifier valve bank, the control power valve bank is locked before the control voltage valve bank, and the rectifier valve bank is locked before the inverter valve bank.
10. An RTDS-based dc power transmission simulation platform according to claim 9, wherein said pole control devices communicate with one or more valve group control devices via an IFC bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021360507.5U CN212658953U (en) | 2020-07-10 | 2020-07-10 | Direct current transmission simulation platform based on RTDS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021360507.5U CN212658953U (en) | 2020-07-10 | 2020-07-10 | Direct current transmission simulation platform based on RTDS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212658953U true CN212658953U (en) | 2021-03-05 |
Family
ID=74760861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021360507.5U Active CN212658953U (en) | 2020-07-10 | 2020-07-10 | Direct current transmission simulation platform based on RTDS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212658953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039960A (en) * | 2021-10-09 | 2022-02-11 | 许昌开普检测研究院股份有限公司 | RTDS intelligent interface device based on Aurora protocol and implementation method thereof |
-
2020
- 2020-07-10 CN CN202021360507.5U patent/CN212658953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039960A (en) * | 2021-10-09 | 2022-02-11 | 许昌开普检测研究院股份有限公司 | RTDS intelligent interface device based on Aurora protocol and implementation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110311711B (en) | Intelligent distribution transformer terminal and intelligent electric meter interaction method based on HPLC communication channel | |
| CN109768527B (en) | Intelligent traction substation hierarchical protection method and system | |
| CN106532962B (en) | Multiterminal flexible direct current converter station centralized control method, device and system | |
| CN104505848A (en) | Energy storage power supply device on basis of distributed energy AC (Alternating Current) and DC (Direct Current) hybrid access | |
| CN112953599B (en) | Energy storage access terminal with power broadband carrier function | |
| CN103812710A (en) | Communication terminal special for power communication | |
| CN212658953U (en) | Direct current transmission simulation platform based on RTDS | |
| CN206076972U (en) | A kind of AC-DC hybrid power grid | |
| CN218482665U (en) | Redundancy coordination control device for high-capacity energy storage system | |
| CN201805421U (en) | Communication device between direct current (DC) protection systems and DC control systems | |
| CN110912171A (en) | System and method for switching control authority of parallel multi-terminal high-voltage direct-current converter station | |
| CN204374697U (en) | AuCT opertaing device | |
| CN111682404A (en) | 10kV power system neutral point movable small resistor complete grounding device | |
| CN110391669B (en) | Converter valve control system | |
| CN104868589B (en) | Sectional-type power supply device and method | |
| CN108539864B (en) | Protection control system for distribution network converter station | |
| CN207910525U (en) | A kind of pure electric vehicle AC power output system device peculiar to vessel | |
| CN112967904A (en) | Wiring structure of gas relay for converter transformer and signal output method | |
| CN114675562A (en) | Direct current power distribution network system simulation platform based on RTDS | |
| CN206650504U (en) | power network monitoring system | |
| CN109921642A (en) | A kind of voltage changer | |
| Xu et al. | Intelligent Power Management System for Vehicle | |
| CN214409970U (en) | EMUs vehicle bus compact terminal substack off-line maintenance testing arrangement | |
| CN110912262B (en) | Electric medium-voltage bus emergency power supply access device and method | |
| CN217484426U (en) | Wind turbine generator system power grid adaptability test equipment compatible with multiple voltage levels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |