CN203026924U - Load switch controller - Google Patents
Load switch controller Download PDFInfo
- Publication number
- CN203026924U CN203026924U CN 201220256600 CN201220256600U CN203026924U CN 203026924 U CN203026924 U CN 203026924U CN 201220256600 CN201220256600 CN 201220256600 CN 201220256600 U CN201220256600 U CN 201220256600U CN 203026924 U CN203026924 U CN 203026924U
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- China
- Prior art keywords
- load switch
- switch controller
- digital signal
- signal processor
- circuit
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Abstract
The utility model relates to a load switch controller. The load switch controller comprises an alternating-current sampling circuit, a telesignal data input circuit, a protection fixed value setting circuit, a digital signal processor and a memory. One end of an opening coil and one end of a closing coil are connected in parallel to the output end of a rectifying device, the other end of the opening coil and the other end of the closing coil are controlled by a set of universal I/O ports of the digital signal processor, and the I2C signal lines of the memory are connected with a set of I2C serial bus ports of the digital signal processor. According to the load switch controller adopting the digital signal processor, calculations, such as fast FET, filtering, integration, etc., can be realized rapidly on a real time basis, the failure point can be positioned accurately and a quick response is made, and at the same time, the digital signal processor has the advantage of abundant resources, so a variety of functions are easy to extend, and the advantage of distribution network automation is easy to realize.
Description
Technical field
The utility model relates to a kind of on-load switch controller.
Background technology
On-load switch is a kind of responsibility separation of the 10KV of being arranged on overhead distribution, can automatically excise and isolate have single phase ground fault, the circuit of phase fault.The on-load switch controller is not only wanted to locate fast the fault point, but also will coordinate the transforming plant protecting time limit, namely excises fast the fault point before the transforming plant protecting action.Existing on-load switch controller generally adopts general processor to realize the AC network data acquisition, and makes a response according to power state.Because the relaying protection time limit in distribution line requires very short; and the quantitative analysis of fault-signal need to be carried out a large amount of discrete Fourier algorithms; general processor all can not meet the demands on arithmetic speed and precision; in addition; because the restriction of port resource is used for realizing that the structure display of systemic-function gets huge and complicated.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, provide a kind of circuit hardware simple in structure, can calculate fast multiple parameters of electric power, and in the system protection definite value of adjusting the reliable on-load switch controller that drives the on-load switch action.
For achieving the above object, the utility model adopts a kind of like this on-load switch controller, comprise transformer, rectifying device, motor and manual change-over switch, voltage transformer by on-load switch draws electricity, provide the rotating power supply through described transformer, described rectifying device, described manual change-over switch for described motor, described on-load switch controller also comprises
Alternating current sampling circuit is for the real-time waveform that three-phase alternating voltage, three-phase alternating current and zero-sequence current through low-pass filtering are provided;
Remote signalling amount input circuit is for the remote signalling amount that the state that comprises spring operating mechanism energy storage state, on-load switch is provided;
The protection definite value arranges circuit, is used for adjusting system protection definite value;
Digital signal processor is used for gathering the remote signalling amount described in control loop and the analog quantity of described alternating current sampling circuit being carried out quick FET conversion, monitors electrical network parameter, to the drive circuit output control signal of switching winding and closing coil;
Memory, described switching winding and described closing coil one end also are connected to the output of described rectifying device, the other end of described switching winding and described closing coil is controlled by one group of universaling I/O port of described digital signal processor respectively, the I of described memory
2One group of I of C holding wire and described digital signal processor
2The C serial bus port connects.
Especially, described on-load switch controller also comprises radio receiving transmitting module, and described radio receiving transmitting module is connected to a UART port of described digital signal processor by the 3rd UART interface.
Especially, described on-load switch controller comprises gsm module, RS232 interface and simulant electronic switch, the UART data of described gsm module and the UART data of described RS232 interface access respectively the input of described simulant electronic switch, the output of described simulant electronic switch is connected to another UART port of described digital signal processor, and the gating end of described simulant electronic switch is connected to another group universaling I/O port of described digital signal processor.
Especially, described on-load switch controller also comprises the integrated circuit processor of tape storage, and the integrated circuit processor of described tape storage is connected to the I of described memory
2On the C holding wire.
Especially, described on-load switch controller also comprises the acousto-optic indicating circuit, and described acousto-optic indicating circuit accesses another group I of described digital signal processor by shift register
2The C serial bus port.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the on-load switch controller of this employing digital signal processor, can realize real-time the calculating such as quick FET, filtering, integration, can accurately locate the fault point and make reaction fast, while is due to the aboundresources of digital signal processor, be easy to expand several functions, be easy to realize distribution automation;
2, expand gsm module, RS232 interface and radio receiving transmitting module on the on-load switch controller, digital signal processor just can be realized multiple communication operation by the poll of various PORT COM, strengthens operating of system;
3, by introducing the integrated circuit processor of tape storage in system, but being associated of realization event and time according to the variation of real-time grid waveform, is convenient to carry out the accident analysis after accident.
4, by adopting shift register output acousto-optic indicating circuit, simultaneously because the acousto-optic indicating circuit belongs to slow device, can therefore not affect the correctness of its response, effectively save the port resource of digital signal processor preciousness.
Description of drawings
Fig. 1 is the principle block diagram of the utility model embodiment one on-load switch controller;
Fig. 2 is the principle block diagram of the utility model embodiment two on-load switch controllers;
Fig. 3 is the circuit block diagram of digital signal processor difference gating multiple communication modes in the utility model embodiment two on-load switch controllers.
Embodiment
As shown in Fig. 1～3, a kind of on-load switch controller, comprise transformer BYQ, rectifying device, motor and manual change-over switch WK, voltage transformer by on-load switch draws electricity, provide the rotating power supply through transformer BYQ, rectifying device, manual change-over switch WK for motor, the on-load switch controller also comprises
Alternating current sampling circuit is for the real-time waveform that three-phase alternating voltage, three-phase alternating current and zero-sequence current through low-pass filtering are provided;
Remote signalling amount input circuit is for the remote signalling amount that the state that comprises spring operating mechanism energy storage state, on-load switch is provided;
The protection definite value arranges circuit, is used for adjusting system protection definite value;
Digital signal processor is used for gathering the remote signalling amount described in control loop and the analog quantity of alternating current sampling circuit being carried out quick FET conversion, monitors electrical network parameter, to the drive circuit output control signal of switching winding and closing coil;
Memory, switching winding and closing coil one end also are connected to the output of rectifying device, and the other end of switching winding and closing coil is controlled by one group of universaling I/O port of digital signal processor respectively, the I of memory
2One group of I of C holding wire and digital signal processor
2The C serial bus port connects.
The on-load switch controller also comprises radio receiving transmitting module, and radio receiving transmitting module is connected to a UART port of digital signal processor by the 3rd UART interface.
The on-load switch controller comprises gsm module, RS232 interface and simulant electronic switch, the UART data of gsm module and the UART data of RS232 interface access respectively the input of simulant electronic switch, the output of simulant electronic switch is connected to another UART port of digital signal processor, and the gating end CS1 of simulant electronic switch is connected to another group universaling I/O port of digital signal processor
The on-load switch controller also comprises the integrated circuit processor of tape storage, and the integrated circuit processor of tape storage is connected to the I of memory
2On the C holding wire.
The on-load switch controller also comprises the acousto-optic indicating circuit, and the acousto-optic indicating circuit is by another group I of shift register incoming digital signal processor
2The C serial bus port.
Claims (6)
1. on-load switch controller, comprise transformer, rectifying device, motor and manual change-over switch, voltage transformer by on-load switch draws electricity,, it is characterized in that for described motor provides the rotating power supply through described transformer, described rectifying device, described manual change-over switch: described on-load switch controller also comprises
Alternating current sampling circuit is for the real-time waveform that three-phase alternating voltage, three-phase alternating current and zero-sequence current through low-pass filtering are provided;
Remote signalling amount input circuit is for the remote signalling amount that the state that comprises spring operating mechanism energy storage state, on-load switch is provided;
The protection definite value arranges circuit, is used for adjusting system protection definite value;
Digital signal processor is used for gathering the remote signalling amount described in control loop and the analog quantity of described alternating current sampling circuit being carried out quick FET conversion, monitors electrical network parameter, to the drive circuit output control signal of switching winding and closing coil;
Memory, described switching winding and described closing coil one end also are connected to the output of described rectifying device, the other end of described switching winding and described closing coil is controlled by one group of universaling I/O port of described digital signal processor respectively, the I of described memory
2One group of I of C holding wire and described digital signal processor
2The C serial bus port connects.
2. on-load switch controller according to claim 1, it is characterized in that: described on-load switch controller also comprises radio receiving transmitting module, and described radio receiving transmitting module is connected to a UART port of described digital signal processor by the 3rd UART interface.
3. on-load switch controller according to claim 1 and 2, it is characterized in that: described on-load switch controller comprises gsm module, RS232 interface and simulant electronic switch, the UART data of described gsm module and the UART data of described RS232 interface access respectively the input of described simulant electronic switch, the output of described simulant electronic switch is connected to another UART port of described digital signal processor, and the gating end of described simulant electronic switch is connected to another group universaling I/O port of described digital signal processor.
4. on-load switch controller according to claim 1 and 2, it is characterized in that: described on-load switch controller also comprises the integrated circuit processor of tape storage, the integrated circuit processor of described tape storage is connected to the I of described memory
2On the C holding wire.
5. on-load switch controller according to claim 3, it is characterized in that: described on-load switch controller also comprises the integrated circuit processor of tape storage, the integrated circuit processor of described tape storage is connected to the I of described memory
2On the C holding wire.
6. on-load switch controller according to claim 1, it is characterized in that: described on-load switch controller also comprises the acousto-optic indicating circuit, described acousto-optic indicating circuit accesses another group I of described digital signal processor by shift register
2The C serial bus port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256600 CN203026924U (en) | 2012-05-16 | 2012-05-16 | Load switch controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256600 CN203026924U (en) | 2012-05-16 | 2012-05-16 | Load switch controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026924U true CN203026924U (en) | 2013-06-26 |
Family
ID=48650876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220256600 Expired - Fee Related CN203026924U (en) | 2012-05-16 | 2012-05-16 | Load switch controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485645A (en) * | 2014-12-31 | 2015-04-01 | 南宏电力科技有限公司 | Microcomputer relay protection method and device adopted on switch cabinet with load switch |
-
2012
- 2012-05-16 CN CN 201220256600 patent/CN203026924U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485645A (en) * | 2014-12-31 | 2015-04-01 | 南宏电力科技有限公司 | Microcomputer relay protection method and device adopted on switch cabinet with load switch |
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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: 20130626 Termination date: 20190516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |