CN204258280U - Boundary switch controller - Google Patents
Boundary switch controller Download PDFInfo
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- CN204258280U CN204258280U CN201420778419.5U CN201420778419U CN204258280U CN 204258280 U CN204258280 U CN 204258280U CN 201420778419 U CN201420778419 U CN 201420778419U CN 204258280 U CN204258280 U CN 204258280U
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Abstract
The utility model discloses a kind of boundary switch controller, comprise the measurement and control unit, memory cell, communication unit and the control switch that are connected with CPU signal, and provide the power supply of electric power for each unit and control switch.Wherein, measurement and control unit, for the conversion of the collection and data that complete analog quantity, comprises the state of alternating current-direct current input variable and distribution system breaker in middle, and by translated data information feed back to CPU.Its structure can realize detection to line simulation amount, protection, Fault Identification, isolation simultaneously and recover the functions such as non-faulting district powers, and can, at any time to teletransmission information with accept Long-distance Control, be the key equipment that New Generation Distribution Automation controls.
Description
Technical field
The utility model relates to a kind of boundary switch controller in distribution line subscriber's drop responsibility separation place or satisfactory branch line tail end line, belongs to power grid control apparatus field.
Background technology
Along with the industrialization development of electric power, power supply quality and power supply reliability require more and more higher.Wherein, common are: when user breaks down inside; if fault is in its inlet wire section, though or fault occur in its protection act time limit and transformer station's outlet switch protection cooperation inside subscriber's drop switch and not at that time, all can cause transformer station's outlet switch trip protection.If nature of trouble is permanent, transformer station's unsuccessful reclosing, accident then in Middle Voltage circle will make whole piece distribution line have a power failure, thisly commonly in power distribution network involve accident, economic loss and baneful influence can be caused to society, this just needs power department to provide safety, economical, reliable electric power.
User demarcation switch solves the above-mentioned ideal equipment involving accident, this equipment is installed on the responsibility separation place of 10kV distribution line, can realize automatically excising single phase ground fault and automatism isolation phase fault, active reporting fault message, so that quick position fault point, guarantee the Electrical Safety of non-faulting user, complete conservative control.
On market, boundary switch controller mainly adopts traditional central processing unit, as INTEL96 and 51 series monolithics and corresponding scm software thereof realize automatically controlling, but its mode of operation can not adapt to control based on network, the managerial demand of electric power system, is in particular in:
1, by the restriction of central processing unit hardware configuration, inefficiency under new power distribution automation demand for development, data processing and control are difficult to realize real-time, are also difficult to realize multi-functional multitasking requirement.
2, along with the development of network management, traditional working mode can not realize the network management of boundary switch controller, cannot use management software to terminal operation, maintenance, power distribution automation efficiency cannot embody.
3, in a power distribution system, communication becomes the bottleneck of Distribution Automation Technology development, and not or lack communication function, advanced communication mode such as the technology such as optical fiber, Ethernet is not difficult to apply in a power distribution system existing boundary switch controller.
4, in the automation of distribution system, due to stipulations imperfection, standard disunity, causes telecommunication and control realization difficulty.
How to change this present situation, eliminate the drawback that existing boundary on-off controller cannot realize networking, standardization, systematized management and control, just become the problem that the utility model is wanted to solve.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art; the utility model aims to provide one and is arranged in user demarcation circuit breaker switch cabinet; according to the intelligent demarcation switch controller that ring main unit ground cable line fault and the feature of the overhead transmission line fault similarities and differences design; to meet consumer networks fault detect, reliably the carrying out of protecting control and stipulations communication function, ensure user power utilization safety.
The utility model is achieved through the following technical solutions:
A kind of boundary switch controller, comprises the measurement and control unit, memory cell, communication unit and the control switch that are connected with CPU signal, and provides the power supply of electric power for each unit and control switch.
Described CPU: receive measurement and control unit information and the information received is judged, sending control command and complete memory cell, communication unit and/or control switch co-ordination.
Described measurement and control unit: complete the collection of analog quantity and the conversion of data, comprise the state of alternating current-direct current input variable and distribution system breaker in middle, by translated data information feed back to CPU.
Described memory cell: accept central processing unit controls, stores data and carries out data transaction.
Described communication unit: accept central processing unit controls, completes information remote transmission and reception.
Described power supply: for each unit and control switch provide working power.
Described CPU is 32 technical grade DSP.
Described communication unit at least includes ethernet communication interface and RS232/RS485 communication interface.
Described measurement and control unit comprises the transformer isolation corresponding with analog input and AD synchronized sampling, exports corresponding optocoupler with On-off signal, inputs the protection of corresponding TVS pipe with power supply, and the transformer isolation corresponding with communication unit.
The beneficial effect of boundary switch controller described in the utility model comprises:
1, adopt High performance industrial level DSP digital signal processing chip to carry out data processing, achieve real-time and the reliability of acquisition process while of multi circuit transmission lines analog quantity, the speed of service is fast, and disposal ability is strong, and memory capacity is large, and extensibility is good, and reliability is high.
2, support multiple serial ports and multichannel Ethernet, support 101,104, MODBUS stipulations, allow to access different types of station equipment, meet the establishment needs of Complicated Distribution Network.
3, I, U precision can reach 0.5%, P, Q precision 1.0%.
4, extensively adopt the multiple interference protection measure such as transformer isolation, optocoupler, TVS pipe protection, make the antijamming capability of boundary switch controller strong especially, use under being suitable for outdoor adverse circumstances.
5, memory cell capacity is large, power down not obliterated data, useful life is unlimited, access speed is fast, ensure that the quick storage of data.
6, can realizing the detection to line simulation amount, protection, Fault Identification, isolation simultaneously and recover the functions such as non-faulting district powers, is the key product of New Generation Distribution Automation.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model.
Embodiment
Switch cubicle is the one group of high voltage switchgear be contained in steel sheet metal cabinet, its core adopts on-load switch and circuit breaker to carry out power supply control, have that structure is simple, volume is little, price is low, can improve power supply parameter, ensure power supply safety, in the power distribution station being widely used in the load centers such as Urban Residential District, skyscraper, large public building, factory and enterprise and box-type substation.In this example, boundary switch controller is installed in switch cubicle.
Be further described below in conjunction with accompanying drawing 1 pair of the utility model:
Boundary switch controller described in the utility model, comprises the measurement and control unit, memory cell, communication unit and the control switch that are connected with CPU signal, and provides the power supply of electric power for each unit and control switch.
CPU adopts 32 technical grade DSP, and it receives measurement and control unit information and judges the information received, and sends the co-ordination that control command completes memory cell, communication unit and/or control switch.
Measurement and control unit comprises the transformer isolation corresponding with analog input and AD synchronized sampling, exports corresponding optocoupler with On-off signal, inputs the protection of corresponding TVS pipe with power supply, and the transformer isolation corresponding with communication unit.Utilize AD synchronized sampling to carry out data transaction at any time and the situation of change of detection simulation amount input numerical value, will feed back in CPU after data transaction, in conjunction with transformer isolation protection, guarantee that boundary switch controller is normal, safe handling.Wherein, the collection of analog quantity comprises the closure state of alternating current-direct current input variable and distribution system breaker in middle.
Memory cell accepts the control of CPU, completes storage and the conversion of data, realizes CPU to storing calling at any time of data.
Communication unit includes Rabbit2000 embedded industrial module, Vxworks multiple task real-time operation system and RTL8663 ethernet controller.In this example, provide 1 Ethernet interface and 1 RS232 interface, support that IEC60870-05-104, IEC60870-05-101 stipulations carry out communication, and by the control of CPU, complete teletransmission and the reception of information.
Power supply is responsible for each unit and control switch provides electric power safeguard.
In work, CPU receives the data message of AD synchronized sampling at any time, after data information memory to memory cell, by analysis, compares the actuating station that formation control instruction is sent to correspondence, as control switch, completes effective control of terminal temperature difference electrical network; Meanwhile, process after information be also sent on far-end server by communication unit, for remote service centre decision-making, inquiry foundation is provided.Certainly, remote service centre also by communication unit to CPU sending controling instruction, thus realize the Remote of boundary switch controller.
Claims (4)
1. a boundary switch controller, is characterized in that, comprises the measurement and control unit, memory cell, communication unit and the control switch that are connected with CPU signal, and provides the power supply of electric power for each unit and control switch;
Described CPU: receive measurement and control unit information and the information received is judged, sending control command and complete memory cell, communication unit and/or control switch co-ordination;
Described measurement and control unit: complete the collection of analog quantity and the conversion of data, comprise the state of alternating current-direct current input variable and distribution system breaker in middle, by translated data information feed back to CPU;
Described memory cell: accept central processing unit controls, stores data and carries out data transaction;
Described communication unit: accept central processing unit controls, completes information remote transmission and reception;
Described power supply: for each unit and control switch provide working power.
2. boundary switch controller according to claim 1, is characterized in that, described CPU is 32 technical grade DSP.
3. boundary switch controller according to claim 1, is characterized in that, described communication unit at least includes ethernet communication interface and RS232/RS485 communication interface.
4. boundary switch controller according to claim 1; it is characterized in that; described measurement and control unit comprises the transformer isolation corresponding with analog input and AD synchronized sampling; corresponding optocoupler is exported with On-off signal; the protection of corresponding TVS pipe is inputted with power supply, and the transformer isolation corresponding with communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778419.5U CN204258280U (en) | 2014-12-12 | 2014-12-12 | Boundary switch controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778419.5U CN204258280U (en) | 2014-12-12 | 2014-12-12 | Boundary switch controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204258280U true CN204258280U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420778419.5U Expired - Fee Related CN204258280U (en) | 2014-12-12 | 2014-12-12 | Boundary switch controller |
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| Country | Link |
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| CN (1) | CN204258280U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532669A (en) * | 2016-11-14 | 2017-03-22 | 成都九五测控科技有限公司 | Microcomputer type protective measurement control apparatus |
| CN106849028A (en) * | 2017-01-19 | 2017-06-13 | 珠海瑞捷电气股份有限公司 | A kind of on-load switch intelligent control unit |
| CN107834498A (en) * | 2017-11-02 | 2018-03-23 | 国电南瑞科技股份有限公司 | Substation secondary automation equipment power supply smart managing and control system and management-control method |
-
2014
- 2014-12-12 CN CN201420778419.5U patent/CN204258280U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532669A (en) * | 2016-11-14 | 2017-03-22 | 成都九五测控科技有限公司 | Microcomputer type protective measurement control apparatus |
| CN106849028A (en) * | 2017-01-19 | 2017-06-13 | 珠海瑞捷电气股份有限公司 | A kind of on-load switch intelligent control unit |
| CN107834498A (en) * | 2017-11-02 | 2018-03-23 | 国电南瑞科技股份有限公司 | Substation secondary automation equipment power supply smart managing and control system and management-control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |