CN202975204U - Interface system of RTDS and intelligentized relay protection device - Google Patents
Interface system of RTDS and intelligentized relay protection device Download PDFInfo
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- CN202975204U CN202975204U CN 201220677310 CN201220677310U CN202975204U CN 202975204 U CN202975204 U CN 202975204U CN 201220677310 CN201220677310 CN 201220677310 CN 201220677310 U CN201220677310 U CN 201220677310U CN 202975204 U CN202975204 U CN 202975204U
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Abstract
The utility model relates to an interface system of an RTDS and an intelligentized relay protection device, especially to an interface way and method of an intelligentized relay protection device in an RTDS dynamic simulation experiment. The provided interface system comprises an alternating-current analog quantity interface, a switching value interface and a user interface. According to the utility model, with utilization of the interface system, the existing RTDS simulation system can be suitable for the dynamic simulation experiment of the intelligentized relay protection device and the performance evaluation of the intelligentized relay protection device can be enhanced, thereby guaranteeing the secure and stable running of a smart power grid secondary system.
Description
Technical field
The utility model relates to a kind of RTDS and intelligent protective relaying device interface system, particularly relates to interface mode and the method for a kind of intelligent protective relaying device in the RTDS dynamic simulation test.
Background technology
In order to support and advance the adjustment of China's energy strategy, state-owned electric power enterprise is after through exploration for many years, and the construction of intelligent grid is greatly developed and promoted in beginning in industry.Intelligent transformer station is the organic carrier of intelligent grid, and can intelligent substation safe, stable operation concern the destiny that intelligent grid is built.Intelligent substation is given traditional secondary device, secondary circuit in construction, or even realizes that substantially the principle aspect brought technological revolution, has especially brought many variations such as technological innovation, renewal of the equipment and test method to protective relaying device.
The RTDS test of traditional relay protection device; corresponding test standard and standard have been formed in career development process in recent years; the RTDS emulator also towards emulation and the test of electric system, has designed and has defined complete model bank and I/O interface.And intelligent protective relaying device adopts the communication mode of light numeral fully, can't adapt with the existing I/O interface of RTDS, if can not address this problem, just can't set up perfect intelligent protective relaying device dynamic simulation test system.Therefore, need a kind of solution that intelligent protective relaying device is applied to existing RTDS equipment.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of RTDS and intelligent protective relaying device interface system.Interface system and method that the existing I/O interface of intelligent protective relaying device and RTDS adapts solve the problem that can't carry out the RTDS dynamic simulation test of bringing after the protective relaying device intellectuality, abundant research technique for intelligent protective relaying device.
The purpose of this utility model and solve its technical matters and realize by the following technical solutions:
RTDS and intelligent protective relaying device interface system comprise:
The ac analog interface, the sampling element for connecting RTDS emulator and intelligent protective relaying device is converted to standardized digital output signal with the analog quantity output signals in RTDS, offers intelligent protective relaying device;
The switching value interface is used for communication " 0 ", one state signal between RTDS and intelligent protective relaying device, and the outputs level signals of RTDS is converted to the digital switch quantity contact point signal, offers intelligent protective relaying device; Simultaneously, the digital switch quantity contact point signal of intelligent protective relaying device is converted to level signal, offers RTDS;
User interface is used for the communication between inner function module and external unit and user interface.
Described ac analog interface comprises: simulation small-signal input port, acquisition configuration module, to the time module, merge module, output module; Wherein: described simulation small-signal input port, the 0-10V that is used for access RTDS output exchanges the small voltage signal, and the electronic mutual inductor of simulating output is carried out digitized processing; Described acquisition configuration module is used for according to user's needs, completes the function of parameter configuration and coefficient adjustment, and described merging module is delivered in output; Described merging module is used for merging the output of the described acquisition configuration module of multichannel, then according to the SCD file allocation request of IEC61850 9-1/2 standard format and tested protective relaying device, completes the configuration to output channel and parameter; Described to the time module, be used for the access synchronous clock source to the time signal, in described merging module link, the digital quantity signal that the described acquisition configuration module of multichannel sends is synchronously processed; Described output module is used for according to user's needs, exports digital message, gives intelligent protective relaying device as analog input.
The support of described simulation small-signal input port accesses two AD source of RTDS output simultaneously.
The utlity model has following beneficial effect:
According to RTDS of the present utility model and intelligent protective relaying device interface system and method; existing RTDS analogue system goes for the dynamic simulation test of intelligent protective relaying device; help to strengthen the Performance Assessment to intelligent protective relaying device, thereby ensure intelligent grid electrical secondary system safety, stable operation.
Below in conjunction with the drawings and specific embodiments of the present utility model, to the utility model detailed description in addition.Should be noted that the embodiments described herein only is used for illustrating, be not limited to the utility model.
Description of drawings
Fig. 1 is ac analog interface schematic diagram of the present utility model;
Fig. 2 is switching value interface schematic diagram of the present utility model;
Fig. 3 is fundamental diagram of the present utility model.
In figure: analog quantity small-signal input port 1, acquisition configuration module 2 merges module 3, to the time module 4, output module 5, IEC61850-9-1/2 message output module 6, IEC60044-8 message output module 7, control output end mouth 8, photoelectric conversion module 9, main configuration module 10, digital communication module 11, passage configuration module 12, file configuration module 13, user interface 14.
Embodiment
The utility model is a kind of RTDS and intelligent protective relaying device interface system.Comprise:
The ac analog interface, the sampling element for connecting RTDS emulator and intelligent protective relaying device is converted to standardized digital output signal with the analog quantity output signals in RTDS, offers intelligent protective relaying device;
The switching value interface is used for communication " 0 ", one state signal between RTDS and intelligent protective relaying device, and the outputs level signals of RTDS is converted to the digital switch quantity contact point signal, offers intelligent protective relaying device; Simultaneously, the digital switch quantity contact point signal of intelligent protective relaying device is converted to level signal, offers RTDS;
User interface is used for the communication between inner function module and external unit and user interface.Described ac analog interface, comprise: simulation small-signal input port, acquisition configuration module, to the time module, merge module, output module, wherein: the simulation small-signal input port, the 0-10V that is used for access RTDS output exchanges the small voltage signal, and the electronic mutual inductor of simulating output is carried out digitized processing.The acquisition configuration module is used for according to user's needs, completes the function of parameter configuration and coefficient adjustment, and described merging module is delivered in output.Merge module, be used for merging the output of the described acquisition configuration module of multichannel, then according to the SCD file allocation request of IEC61850 9-1/2 standard format and tested protective relaying device, complete the configuration to output channel and parameter.To the time module, be used for the access synchronous clock source to the time signal, in described merging module link, the digital quantity signal that the described acquisition configuration module of multichannel sends is synchronously processed.Output module is used for according to user's needs, exports digital message, gives intelligent protective relaying device as analog input.The support of described simulation small-signal input port accesses two AD source of RTDS output simultaneously.
Described in the utility model and acquisition configuration module comprises: version CRC check function, and for the version number of the version number, CRC check code and the FPGA that check program.Specified input and output function are used for according to user's needs, the digital quantity of the specified input that analog quantity is set flexibly and corresponding specified output.Drift and coefficient adjustment function are used for carrying out the drift adjustment, and when signal transmission attenuation, adjust the passage coefficient.Solidify informational function, lose when installing power down for systematic parameters such as the sampling rate that prevents from having configured, drift, coefficients, should be cured operation after configuration is completed.
Output module described in the utility model comprises: the IEC61850-9-1/2 message output module, and for the intelligent protective relaying device of applied code stipulations interface.The IEC60044-8 message output module is for the intelligent protective relaying device of the applicable nonstandard interface of FT3.Output port is supported the interface mode of ST and LC simultaneously.
The amount of opening the light interface module described in the utility model comprises: photoelectric conversion module, main configuration module, digital communication module.Wherein: photoelectric conversion module, be used for level signal and the external digital logical signal of RTDS identification are changed mutually, transformation result is sent to RTDS or described main configuration module.Main configuration module is used for the digital logic signal after described photoelectric conversion module processing and mates with the digital communication signal between intelligent protective relaying device, is sent to described photoelectric conversion module after coupling, or described digital communication module.Digital communication module is used for receiving or the standard of transmission GOOSE message, supports ST and LC interface mode.
Main configuration module described in the utility model comprises: the passage configuration module, and be used for each logical signal of described photoelectric conversion module output is inserted the logical channel storehouse, or derive corresponding logical signal from the logical channel storehouse, be sent to described photoelectric conversion module.The file configuration module is used for described logical channel storehouse and the SCD file that tested intelligent protective relaying device is suitable for are mated, and sets up the corresponding relation of RTDS level signal and GOOSE displacement.
Described merging module and main configuration module comprise display screen, are used for showing output valve and every configuration information after merging.
Described ac analog interface and described switching value interface comprise the abnormal alarm function, are used to indicate line module and are in abnormal working position.
As shown in Figure 1, Fig. 1 is ac analog interfaces schematic diagram of the present utility model.Wherein, the ac analog interface comprises: analog quantity small-signal input port 1, and it can be directly to exchange with the 0-10V of RTDS output the port that the small voltage signal is connected, and simulation small-signal is carried out digitized processing; Acquisition configuration module 2, it can be the software program that presets, and reserves user interface and completes parameter configuration and coefficient adjustment function, and merging module 3 is delivered in output; Merge module 3 and can reserve the SCD file that user interface imports tested protective relaying device, configuration output channel and parameter; To the time module 4, its can access external sync to the time signal, the digital quantity signal that multi pass acquisition configuration module 2 sends is synchronously processed; Output module 5 can be ST or LC optical fiber interface, and it is according to being exported the digital signal of different stipulations by the difference of electricity testing device, under normal circumstances by IEC61850-9-1/2 message output module 6 control output end mouths 8; If needed FT3 form message by electricity testing device, manually short circuit acquisition configuration module 2 and IEC60044-8 message output module 7 are by IEC60044-8 message output module 7 control output end mouths 8.
As shown in Figure 2, it is switching value interfaces schematic diagram of the present utility model.Wherein, the switching value interface comprises: photoelectric conversion module 9, main configuration module 10, digital communication module 11.Wherein, photoelectric conversion module 9, the level signal that RTDS I/O equipment can be provided is converted to digital logic signal, and is sent to main configuration module 10, and in main configuration module 10, passage configuration module 12 can write the real-time correspondence of digital logic signal the logical channel storehouse; File configuration module 13 can be by the applicable SCD file configuration outgoing message form of tested intelligent protective relaying device; Digital communication module 11 can be ST or LC optical fiber interface, and the GOOSE message of output regulation is to Intelligent protective relaying device.Anti-process is as the same.
The external unit of existing system support comprises: configured port, can select RS-232 or USB mode, and the access purpose is collocation channel and imports the SCD file; Display screen is used for showing output valve and every configuration information after merging.
As shown in Figure 3, existing dynamic simulation test take intelligent line protective devices is as example explanation RTDS and intelligent protective relaying device interface system.Before test, the SCD file of tested line protective devices use is passed through the Peripheral Interface of user interface 14, import respectively merging module 3 and file configuration module 13; According to testing requirements, with line current and the line voltage distribution passage Peripheral Interface configuration acquisition configuration module 2 by user interface 14; According to by the logic requirement of electricity testing device, line switching trip signal, switching signal and position signalling passage are passed through the Peripheral Interface collocation channel configuration module 12 of user interface 14; The GTAO of RTDS or DDAC integrated circuit board by setting passage connecting analog amount small-signal input port 1, are set electric current in passage and acquisition configuration module 2, voltage channel is corresponding; The GTDI of RTDS is connected the passage connection photoelectric conversion module 9 of setting with the GTDO integrated circuit board, sets passage corresponding with passage configuration module 12; Output port 8 is connected with protective device SV port by optical fiber, and digital communication module 11 is connected with protective device GOOSE port.Operation l-G simulation test model in RTDS; in model a sub-value by RTDS GTAO or DDAC output voltage small-signal to analog quantity small-signal input port 1; be converted to after digital quantity through acquisition configuration module 2 and merge module 3; markers is synchronously processed and stamped to three-phase current and three-phase voltage digital quantity in merging module 3; Packet Generation after synchronous is to IEC61850-9-1/2 message output module 6; offer protective device finally by crossing light output module 8, transmission correctness is tested by display screen and protective device display menu.Transmission breaker tripping and closing outlet in protective device, GOOSE outlet order is by digital communication module 11, be sent to file configuration module 13, the logical channel in respective channel configuration module 12 in the logical channel storehouse that is configured according to the SCD file, then become the level signal of 24V or 5V by photoelectric conversion module 9, offer the GTDI integrated circuit board of RTDS, check breaker tripping and closing order is correct in realistic model; Simultaneously; the GTDO integrated circuit board of RTDS with above-mentioned switch minute, closing position sends photoelectric conversion module 9 to by the level signal of GTDO; digital logic signal after conversion is through passage configuration module 12 and file configuration module 13; be matched to effective GOOSE message; finally offer protective device by digital communication module 11, in the correctness of the intake menu of protective device check minute, closing position signal.
RTDS of the present utility model and intelligent protective relaying device interface system can be as the case may be use ac analog interface or the switching value interface of inside separately.In addition, the utility model can also be applied to such as in the middle of other joint tests based on IEC61850 communication standard, the equipment that adopts optical fiber interface and RTDS analogue system such as intelligent automatic safety device.
Claims (3)
1.RTDS with intelligent protective relaying device interface system, it is characterized in that, comprising:
The ac analog interface, the sampling element for connecting RTDS emulator and intelligent protective relaying device is converted to standardized digital output signal with the analog quantity output signals in RTDS, offers intelligent protective relaying device;
The switching value interface is used for communication " 0 ", one state signal between RTDS and intelligent protective relaying device, and the outputs level signals of RTDS is converted to the digital switch quantity contact point signal, offers intelligent protective relaying device; Simultaneously, the digital switch quantity contact point signal of intelligent protective relaying device is converted to level signal, offers RTDS;
User interface is used for the communication between inner function module and external unit and user interface.
2. RTDS according to claim 1 and intelligent protective relaying device interface system, is characterized in that, described ac analog interface comprises: simulation small-signal input port, acquisition configuration module, to the time module, merge module, output module; Wherein:
Described simulation small-signal input port, the 0-10V that is used for access RTDS output exchanges the small voltage signal, and the electronic mutual inductor of simulating output is carried out digitized processing;
Described acquisition configuration module is used for according to user's needs, completes the function of parameter configuration and coefficient adjustment, and described merging module is delivered in output;
Described merging module is used for merging the output of the described acquisition configuration module of multichannel, then according to the SCD file allocation request of IEC61850 9-1/2 standard format and tested protective relaying device, completes the configuration to output channel and parameter;
Described to the time module, be used for the access synchronous clock source to the time signal, in described merging module link, the digital quantity signal that the described acquisition configuration module of multichannel sends is synchronously processed;
Described output module is used for according to user's needs, exports digital message, gives intelligent protective relaying device as analog input.
3. RTDS according to claim 2 and intelligent protective relaying device interface system, is characterized in that, the support of described simulation small-signal input port accesses two AD source of RTDS output simultaneously.
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| CN 201220677310 CN202975204U (en) | 2012-12-11 | 2012-12-11 | Interface system of RTDS and intelligentized relay protection device |
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| CN 201220677310 CN202975204U (en) | 2012-12-11 | 2012-12-11 | Interface system of RTDS and intelligentized relay protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981087A (en) * | 2012-12-11 | 2013-03-20 | 辽宁省电力有限公司电力科学研究院 | Interface system for RTDS and intelligent relaying protection device |
| CN107167680A (en) * | 2017-05-09 | 2017-09-15 | 国网上海市电力公司 | A kind of power distribution network distributed test system based on RTDS |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981087A (en) * | 2012-12-11 | 2013-03-20 | 辽宁省电力有限公司电力科学研究院 | Interface system for RTDS and intelligent relaying protection device |
| CN102981087B (en) * | 2012-12-11 | 2015-10-28 | 辽宁省电力有限公司电力科学研究院 | RTDS and intelligent relay protection device interface system |
| CN107167680A (en) * | 2017-05-09 | 2017-09-15 | 国网上海市电力公司 | A kind of power distribution network distributed test system based on RTDS |
| CN107167680B (en) * | 2017-05-09 | 2019-12-24 | 国网上海市电力公司 | RTDS-based power distribution network distributed test system |
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Granted publication date: 20130605 Termination date: 20201211 |