CN201813212U - Digitalized transformer substation multifunctional merging unit for realizing connection of conventional mutual inductors - Google Patents

Digitalized transformer substation multifunctional merging unit for realizing connection of conventional mutual inductors Download PDF

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Publication number
CN201813212U
CN201813212U CN201020515084XU CN201020515084U CN201813212U CN 201813212 U CN201813212 U CN 201813212U CN 201020515084X U CN201020515084X U CN 201020515084XU CN 201020515084 U CN201020515084 U CN 201020515084U CN 201813212 U CN201813212 U CN 201813212U
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China
Prior art keywords
module
transformer substation
merge cells
network interface
master control
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Expired - Lifetime
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CN201020515084XU
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Chinese (zh)
Inventor
张旭辉
张绍娟
潘霄鹏
杨兴雷
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HEBEI XUHUI ELECTRIC Ltd
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HEBEI XUHUI ELECTRIC Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations

Abstract

The utility model discloses a digitalized transformer substation multifunctional merging unit for realizing connection of conventional mutual inductors, which comprises a main control module, a display and human-machine interaction module, an Ethernet switching module, an analog input module, an analog/digital (A/D) conversion module, a switch input module and an information transmission network interface/optical interface. The digitalized transformer substation multifunctional merging unit can convert switch signals such as analog signals outputted by the conventional mutual inductors, switch state and alarm signals of transformer substation equipment and the like into saved mail video (SMV) and genetic object oriented substation event (GOOSE) messages in 61850 standard format, and has the function of Ethernet information switching. In addition, the digitalized transformer substation multifunctional merging unit can substantially reduce the number and manufacturing costs of equipment when applied to a digitalized transformer substation, and is particularly applicable to digitalized modification of 10-66kV medium-voltage power grids.

Description

Be used to connect the multi-functional merge cells of digital transformer substation of conventional instrument transformer
Technical field
The utility model relates to field of power, particularly a kind of multi-functional merge cells of digital transformer substation.
Background technology
Along with power system development, digital transformer substation replaces the technology of traditional transformer station also increasingly mature, yet data-signal all is to transmit by optical fiber in the digital transformer substation, and because merge cells can only receiving digital signals, therefore the collection of signal can only be gathered by electric mutual inductor in the circuit, handle by merge cells then after Optical Fiber Transmission is given controller, be far longer than conventional instrument transformer owing to hang down the cost of electric mutual inductor in the network system in below 66kV, will increase construction cost greatly when therefore transforming digitizing station as.And at present its function ratio of merge cells of digital transformer substation is more single, can't handle switching value, also free of data function of exchange, and when access device must use private branch exchange system more for a long time, the system configuration complexity, cost is higher.
The utility model content
The utility model technical issues that need to address provide and a kind ofly can be applied to the multi-functional merge cells that digital transformer substation connects conventional instrument transformer.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
Be used to connect the multi-functional merge cells of digital transformer substation of conventional instrument transformer, comprise master control module, analog quantity input module, A/D modular converter, switching input module and message transmission network interface/light mouth, each intermodule carries out message transmission by data/address bus.The analog quantity input module, A/D modular converter, master control module, the message transmission network interface/light mouth that transmit analog signal connect successively; The switching input module, master control module, ethernet switching module, the message transmission network interface/light mouth that transmit the switching value signal connect successively.
Wherein: the master control module is carried out control and management to other modules, is used for the collection of analog quantity input module is converted to the SMV message, the switching value status signal of switching input module is converted to GOOSE message etc. through AD modular converter data converted; The analog quantity input module directly is connected with transformer station routine voltage current transformer, export to the A/D modular converter after the conventional instrument transformer voltage and current signal that is used for collecting is isolated, nursed one's health, the A/D modular converter is converted into digital signal and exports by transmitting network interface/light mouth through specified message after the master control resume module; Switching input module is used for and will be transferred to the master control resume module behind the switching value signal conditions such as transformer substation switch state, alarm signal, then through specified message transmission network interface/light mouth output.
The improvement of described message transmission network interface/light mouth is: message transmission network interface/light mouth comprises that sampled value output network interface/light mouth and GOOSE go out network interface/light mouth.
Sampled value SMV signal that the utility model generated and GOOSE signal can be exported by a shared message transmission network interface/light mouth, also can use independent light mouth/network interface output respectively.Can export the sampled value signal of single sampling rate by the defeated light-emitting window/network interface of a sampled value, also can export the sampled value signal of two different sampling rates respectively by the defeated light-emitting window/network interface of two sampled values.
Improvement of the present utility model is: be provided with the ethernet switching module that is used to allocate information flow direction between described master control module and the output network interface/light mouth.Ethernet switching module is used to expand the network interface or the light mouth quantity of connection, supports the priority and the VLAN of IEEE802.1Q standard, the SMV and the GOOSE message information of each 3 and above network interface/light mouth can be dispatched distribution, realizes switch function.
Further improvement of the utility model is: multi-functional merge cells also be provided with standard to the time interface, finish the synchronized sampling function with transformer station's miscellaneous equipment, described standard to the time interface connect the master control module.
Of the present utility model also the improvement is: multi-functional merge cells also is provided with the RS232/485/422 serial line interface, is used to connect the miscellaneous equipment of non-61850 standards of transformer station, and serial line interface connects the master control module.
Improvement of the present utility model also is: multi-functional merge cells also is provided with demonstration and the human-computer interaction module that is connected with the master control module.Show and human-computer interaction module is used for the data in the multi-functional merge cells are shown, and carry out human-computer dialogue, make its operation more flexible by display interface.
Improvement of the present utility model also is: multi-functional merge cells also is provided with the switching value output module that is connected with the master control module.Export for the mode with switching value after the master control resume module of the failure alarm signal in multi-functional merge cells and the system.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The utility model is except that the function with standard merge cells, the analog quantity sampled value of conventional instrument transformer output can be converted to digital signal by analog quantity input module and the A/D modular converter that is provided with, be the sampled value data that meet 61850 standards through the master control module converts again, and export other measure and control device and use with the form of SMV message light mouth or the network interface by appointment, solve the defective that conventional instrument transformer can not be used for digital transformer substation, greatly reduced the cost of digital transformer substation construction or transformation.
The switching input module of the utility model by being provided with, can realize the circuit breaker in the transformer station, isolating switch and other switching value signals by after the switching input module conditioning, be the digital signal that meets 61850 reference formats through the master control module converts again, and export to other measure and control devices by the light mouth or the network interface of appointment with the form of GOOSE message.Standard to the time interface setting each intelligent cell in the transformer station can be unified the school time, remove the sampling error that produces because of the time difference.The RS232/485/422 serial line interface is as be connected convenient the use with the equipment of other non-61850 standards.The setting of demonstration and human-computer interaction module provides the platform of information exchange between people and device, makes staff's operating process become convenient and swift.The setting of switching value output module makes the failure alarm signal in the Apparatus and system export to each equipment in the station in the mode of switching value.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details:
The multi-functional merge cells of digital transformer substation that is used to connect conventional instrument transformer as shown in Figure 1, comprise master control module, demonstration and human-computer interaction module, analog quantity input module, A/D converter, switching input module, switching value output module, ethernet switching module, standard to the time interface, RS232/485/422 serial line interface and sampled value output network interface/light mouth, GOOSE export network interface/light mouth, each intermodule carries out message transmission by data/address bus.
The master control module is carried out control and management to other modules, is used for data with the collection of analog quantity input module and is converted to the SMV message, the switching value status signal of switching input module is converted to GOOSE message etc.Demonstration and human-computer interaction module are used for the data in the multi-functional merge cells are shown, and carry out human-computer dialogue by display interface.
The analog quantity input module directly is connected with transformer station routine voltage current transformer, export to the A/D modular converter after the conventional instrument transformer voltage and current signal that is used for collecting is isolated, nursed one's health, the A/D modular converter is converted into digital signal and exports by sampled value output network interface/light mouth after master control module and ethernet switching module processing allotment.
Switching input module connects one the tunnel and above equipment such as station inner breaker, be used for and be transferred to the master control module behind the switching value signal conditions such as transformer substation switch state, alarm signal and ethernet switching module is handled, then by GOOSE output network interface/light mouth output.The switching value output module is used for the failure alarm signal of multi-functional merge cells after the master control resume module and system is exported in the mode of switching value, makes things convenient for each layer equipment in the control station.
Be connected the ethernet switching module between master control module and sampled value output network interface/light mouth, support the priority and the VLAN of IEEE802.1Q standard, the SMV and the GOOSE message information of each 3 and above network interface/light mouth can be dispatched distribution, realize switch function.Therefore sampled value SMV signal and the GOOSE signal that generates through the master control module can be exported by a shared message transmission network interface/light mouth, also can use independent light mouth/network interface output respectively.Can export the sampled value signal of single sampling rate by the defeated light-emitting window/network interface of a sampled value, also can export the sampled value signal of two different sampling rates respectively by the defeated light-emitting window/network interface of two sampled values.
Standard to the time interface connect the master control module, finish synchronized sampling function with transformer station's miscellaneous equipment; The RS232/485/422 serial line interface connects the master control module, is used to connect the miscellaneous equipment of non-61850 standards of transformer station, and is various signal digitalized in will standing.

Claims (7)

1. be used to connect the multi-functional merge cells of digital transformer substation of conventional instrument transformer, it is characterized in that: comprise master control module, analog quantity input module, A/D modular converter, switching input module and message transmission network interface/light mouth, carry out message transmission by data/address bus between each module; The analog quantity input module, A/D modular converter, master control module, the message transmission network interface/light mouth that transmit analog signal connect successively; The switching input module, master control module, ethernet switching module, the message transmission network interface/light mouth that transmit the switching value signal connect successively.
2. the multi-functional merge cells of digital transformer substation that is used to connect conventional instrument transformer according to claim 1 is characterized in that: described message transmission network interface/light mouth comprises sampled value output network interface/light mouth and GOOSE output network interface/light mouth.
3. the multi-functional merge cells of digital transformer substation that is used to connect conventional instrument transformer according to claim 1 is characterized in that: be provided with the ethernet switching module that is used to allocate output information between described master control module and the message transmission network interface/light mouth.
4. the multi-functional merge cells of digital transformer substation that is used to connect conventional instrument transformer according to claim 1 is characterized in that: multi-functional merge cells also be provided with standard to the time interface, described standard to the time interface connect the master control module.
5. the multi-functional merge cells of digital transformer substation that is used to connect conventional instrument transformer according to claim 1, it is characterized in that: multi-functional merge cells also is provided with the RS232/485/422 serial line interface, and serial line interface connects the master control module.
6. the multi-functional merge cells of digital transformer substation that is used to connect conventional instrument transformer according to claim 1, it is characterized in that: multi-functional merge cells also is provided with demonstration and the human-computer interaction module that is connected with the master control module.
7. the multi-functional merge cells of digital transformer substation that is used to connect conventional instrument transformer according to claim 1, it is characterized in that: multi-functional merge cells also is provided with the switching value output module that is connected with the master control module.
CN201020515084XU 2010-09-03 2010-09-03 Digitalized transformer substation multifunctional merging unit for realizing connection of conventional mutual inductors Expired - Lifetime CN201813212U (en)

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Application Number Priority Date Filing Date Title
CN201020515084XU CN201813212U (en) 2010-09-03 2010-09-03 Digitalized transformer substation multifunctional merging unit for realizing connection of conventional mutual inductors

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Application Number Priority Date Filing Date Title
CN201020515084XU CN201813212U (en) 2010-09-03 2010-09-03 Digitalized transformer substation multifunctional merging unit for realizing connection of conventional mutual inductors

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102185387A (en) * 2011-06-03 2011-09-14 云南电网公司普洱供电局 Triple play method of process layer in intelligent substation
CN107861000A (en) * 2017-11-01 2018-03-30 南京国电南自电网自动化有限公司 A kind of method of automatic test substation intelligent alarm function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102185387A (en) * 2011-06-03 2011-09-14 云南电网公司普洱供电局 Triple play method of process layer in intelligent substation
CN107861000A (en) * 2017-11-01 2018-03-30 南京国电南自电网自动化有限公司 A kind of method of automatic test substation intelligent alarm function

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Granted publication date: 20110427