CN204131104U - A kind of self-adaptive single neuron control device - Google Patents
A kind of self-adaptive single neuron control device Download PDFInfo
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- CN204131104U CN204131104U CN201420614988.6U CN201420614988U CN204131104U CN 204131104 U CN204131104 U CN 204131104U CN 201420614988 U CN201420614988 U CN 201420614988U CN 204131104 U CN204131104 U CN 204131104U
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Abstract
The utility model relates to a kind of self-adaptive single neuron control device, belong to the field about automatic reclosing control technology in high voltage power transmission and transforming circuit, the utility model effectively solves the adverse effect that the coincidence " permanent fault " blindly of traditional reclosing device causes electric power system, control device is simple and judged result is accurate, to ensureing that the safe and stable operation of electric power system is significant.
Description
Technical field
The utility model belongs to the field about automatic reclosing control technology in high voltage power transmission and transforming circuit, is specifically related to a kind of self-adaptive single neuron control device.
Background technology
Trans-regional, remote, Large Copacity, UHV transmission have become the developing direction of China's power system transmission line; the possibility of transmission line generation disturbance and fault is increasing; the operation of power system safety and stability is had higher requirement, also new challenge is brought to the relaying protection in transmission line and control.According to statistics, in electric power system fault, single phase ground fault rate is up to more than 90%, and wherein " transient fault " fault is about 80%.Stablize for improving system for ultra-high voltage transmission, run reliably, in transmission line, adopt automatic reclosing technology widely.
At present, traditional auto recloser structure is simple, does not comprise " except hot-tempered " device, due to the disturbance of signals such as " noises " in electric power system, tradition reclosing device there will be phenomenons such as " erroneous judgements ", occurs reclosing misoperation phenomenon, brings potential safety hazard to electrical network.
Summary of the invention
For the shortcoming of prior art, the utility model proposes a kind of self-adaptive single neuron control device, to reach only based on single-ended power frequency amount, avoid utilizing transient signal, control procedure is easily realized, ensures the safe and stable operation of electric power system and improve the object of reliability.
A kind of self-adaptive single neuron control device, this device comprises the first data acquisition unit, second data acquisition unit, 3rd data acquisition unit, 4th data acquisition unit, microcomputer, human-computer dialogue device, switching value input device and output switch parameter device, wherein, the A that first data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the B that second data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the C that 3rd data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the input of the 4th data acquisition unit accesses in the current transformer of tested neutral point of electric network low reactance side, first data acquisition unit output, second data acquisition unit output, 3rd data acquisition unit output is connected the first input end of microcomputer successively with the 4th data acquisition unit output, second input, 3rd input and four-input terminal, the input of the output connecting valve amount output device of microcomputer, the output of output switch parameter device connects the input of tested electrical network reclosing contactor, the output of switching value input device connects the 5th input of microcomputer, the input of switching value input device connects the output of fault phase output module in tested electrical network, the input/output terminal of human-computer dialogue device connects the input/output end of microcomputer.
The first described data acquisition unit, second data acquisition unit, 3rd data acquisition unit is identical with the 4th data acquisition unit structure, comprise the first amplifier, second amplifier, 3rd amplifier, 4th amplifier, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance and the 8th resistance, wherein, the positive input terminal of the first amplifier is as the input of data acquisition unit, the negative input end of the first amplifier connects the output of the first amplifier and one end of the first resistance simultaneously, the other end of the first resistance connects the positive input terminal of the second amplifier and one end of the second resistance simultaneously, the negative input end of the second amplifier connects one end of the 3rd resistance and one end of the 4th resistance simultaneously, the other end ground connection of the 3rd resistance, the other end of the 4th resistance connects the output of the second amplifier, and the output of the second amplifier is as the output of data acquisition unit, the other end of the second described resistance connects output and the negative input end of the 3rd amplifier simultaneously, the positive input terminal of the 3rd amplifier connects the output of the 4th amplifier and one end of the 5th resistance simultaneously, the other end of the 5th resistance connects the negative input end of the 4th amplifier and one end of the 6th resistance simultaneously, another termination power of 6th resistance, the positive input terminal of the 4th amplifier connects one end of the 7th resistance and one end of the 8th resistance simultaneously, the other end of the 7th resistance and the equal ground connection of the other end of the 8th resistance.
Described data acquisition unit is the first data acquisition unit or the second data acquisition unit or the 3rd data acquisition unit or the 4th data acquisition unit.
The utility model advantage;
A kind of self-adaptive single neuron control device of the utility model, effectively solve the adverse effect that the coincidence " permanent fault " blindly of traditional reclosing device causes electric power system, control device is simple and precision is high; In addition, data acquisition unit in a kind of self-adaptive single neuron control device, effectively can to eliminate in electrical network disturbing signals such as " noises ", avoid reclosing device generation misoperation phenomenon, ensures that the safe and stable operation of electric power system is significant.
Accompanying drawing explanation
Fig. 1 is the single-phase adaptive reclosing control device structure chart of a kind of embodiment of the utility model;
Fig. 2 is the single-phase adaptive reclosing control device of a kind of embodiment of the utility model and the connection layout of ultra-high-tension power transmission line;
Fig. 3 is the data acquisition unit circuit diagram of a kind of embodiment of the utility model;
Fig. 4 is the circuit theory diagrams of the ADS8364 modular converter of a kind of embodiment of the utility model;
Fig. 5 is the position capture circuit figure of a kind of embodiment of the utility model;
Fig. 6 is the switching value input device circuit diagram of a kind of embodiment of the utility model;
Fig. 7 is that 5 steps of a kind of embodiment of the utility model turn 3.3 step level conversion pinoutss;
Fig. 8 is the pinouts of the micromachine system DSP of a kind of embodiment of the utility model;
Fig. 9 is the output switch parameter device circuit figure of a kind of embodiment of the utility model;
Faulted phase current schematic diagram when Figure 10 is the transient fault of a kind of embodiment of the utility model;
Faulty line π type Equivalent Model schematic diagram when Figure 11 is the transient fault of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, a kind of embodiment of the utility model is described further.
In the utility model embodiment, a kind of single-phase adaptive reclosing control device is installation and operation in certain 500kV ultra-high-tension power transmission line.
As shown in Figure 1, self-adaptive single neuron control device in the utility model embodiment, this device comprises the first data acquisition unit, the second data acquisition unit, the 3rd data acquisition unit, the 4th data acquisition unit, microcomputer, human-computer dialogue device, switching value input device and output switch parameter device.
In the utility model embodiment, first data acquisition unit, the second data acquisition unit, the 3rd data acquisition unit and the 4th data acquisition unit are made up of the first Amplifier OP07, the second Amplifier OP07, the 3rd Amplifier OP07, the 4th Amplifier OP07, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the 8th resistance, this data acquisition unit can eliminate the signals such as the noise in circuit, also current signal can be converted into the acceptable 0-3.3V signal of microcomputer; Microcomputer adopts 32 floating type DSPTMS320F28335 chips and the ADS8364 modular converter composition of TI company; Switching value input device adopts PS2505-1 model chip, and output switch parameter device adopts B1203S cake core; Human-computer dialogue device comprises OLED LCD MODULE, button and LED light three part; OLED LCD MODULE is controlled by main control chip STC12LE5A60S2; for display unit on-line monitoring and the various running status of protection, apparatus system amount is arranged.
As shown in Figure 2, in the utility model embodiment, the first described data acquisition unit, the second data acquisition unit, the 3rd data acquisition unit are identical with the 4th data acquisition unit structure, comprise an OP07 amplifier, the 2nd OP07 amplifier, the 3rd OP07 amplifier, the 4th OP07 amplifier, the first resistance R
1, the second resistance R
2, the 3rd resistance R
3, the 4th resistance R
4, the 5th resistance R
5, the 6th resistance R
6, the 7th resistance R
7with the 8th resistance R
8, wherein, the positive input terminal of an OP07 amplifier is as the input of data acquisition unit, and the negative input end of an OP07 amplifier connects output and the first resistance R of an OP07 amplifier simultaneously
1one end, the first resistance R
1the other end connect positive input terminal and the second resistance R of the 2nd OP07 amplifier simultaneously
2one end, the negative input end of the 2nd OP07 amplifier connects the 3rd resistance R simultaneously
3one end and the 4th resistance R
4one end, the 3rd resistance R
3other end ground connection, the 4th resistance R
4the other end connect the output of the 2nd OP07 amplifier, and the output of the 2nd OP07 amplifier is as the output of data acquisition unit; The second described resistance R
2the other end connect output and the negative input end of the 3rd OP07 amplifier simultaneously, the positive input terminal of the 3rd OP07 amplifier connects output and the 5th resistance R of the 4th OP07 amplifier simultaneously
5one end, the 5th resistance R
5the other end connect negative input end and the 6th resistance R of the 4th OP07 amplifier simultaneously
6one end, the 6th resistance R
6another termination power, the positive input terminal of the 4th OP07 amplifier connects the 7th resistance R simultaneously
7one end and the 8th resistance R
8one end, the 7th resistance R
7the other end and the 8th resistance R
8the equal ground connection of the other end.
As shown in Figure 3, this application of installation is in certain 500kV ultra-high-tension power transmission line, the A that first data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the B that second data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the C that 3rd data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the input of the 4th data acquisition unit accesses in the current transformer of tested neutral point of electric network low reactance side, as shown in Figure 2, the first data acquisition unit, second data acquisition unit, 3rd data acquisition unit and the 4th data acquisition unit four outputs access the CHA0+ in ADS8364 modular converter as shown in Figure 4 respectively, CHA1+, CHB0+, CHB1+ port, the digital signal after conversion is through D1, D3, D5, D7 exports, and the output of above-mentioned four connects microcomputer by position capture circuit, specifically as shown in Figure 5, and the output D1 of ADS8364 modular converter, D3, D5, D7 is connected to the CAP1 of the 74HC14 chip of position capture circuit, CAP2, CAP3 and CAP4 holds, the DSCAP1 of the output chip 74CBTD3384 of position capture circuit, DSCAP2, DSCAP3, DSCAP4 respectively with the CAP1 of micromachine system DSP, CAP2, CAP3, CAP4 tetra-pin is connected, and realizes the collection to current signal, as shown in Figure 6, the input IN of switching value input device circuit is connected with phase selection element fault phase output module in tested power network line, as shown in Figure 7, output OUT and the 5V voltage of switching value input device circuit turn 3.3V circuit input end and are connected, 5V voltage turns 3.3V circuit output end and is connected (as shown in Figure 8) with the GOIO23 pin of microcomputer DSP, realizes the identification of micromachine system to fault phase, as shown in Figure 9, the GOIO24 pin of input IN and the DSP of output switch parameter device is connected, and output OUT is connected with breaker control case reclosing contactor, realizes the signal of micromachine system to reclosing operation or the operation of lock-reclosing lock and exports.
Tested transmission line one end band shunt reactor, suppose that transmission line two ends are M, N, N holds shunt reactor.During circuit generation single-phase fault, the utility model device realizes the adaptive reclose of circuit.Figure 10 is circuit C phase current diagram when there is " transient fault ", and circuit π type Equivalent Model is as Figure 11.After circuit generation transient fault arc extinction, fault point disappears.A, B phase is by making C phase still there is recovery voltage with the Coupling Between Phases electric capacity and coupling inductance of C phase.
Claims (3)
1. a self-adaptive single neuron control device, it is characterized in that: this device comprises the first data acquisition unit, second data acquisition unit, 3rd data acquisition unit, 4th data acquisition unit, microcomputer, human-computer dialogue device, switching value input device and output switch parameter device, wherein, the A that first data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the B that second data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the C that 3rd data acquisition unit input accesses tested electrical network is in parallel in the current transformer of reactor side, the input of the 4th data acquisition unit accesses in the current transformer of tested neutral point of electric network low reactance side, first data acquisition unit output, second data acquisition unit output, 3rd data acquisition unit output is connected the first input end of microcomputer successively with the 4th data acquisition unit output, second input, 3rd input and four-input terminal, the input of the output connecting valve amount output device of microcomputer, the output of output switch parameter device connects the input of tested electrical network reclosing contactor, the output of switching value input device connects the 5th input of microcomputer, the input of switching value input device connects the output of fault phase output module in tested electrical network, the input/output terminal of human-computer dialogue device connects the input/output end of microcomputer.
2. self-adaptive single neuron control device according to claim 1, it is characterized in that: the first described data acquisition unit, second data acquisition unit, 3rd data acquisition unit is identical with the 4th data acquisition unit structure, comprise the first amplifier, second amplifier, 3rd amplifier, 4th amplifier, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance and the 8th resistance, wherein, the positive input terminal of the first amplifier is as the input of data acquisition unit, the negative input end of the first amplifier connects the output of the first amplifier and one end of the first resistance simultaneously, the other end of the first resistance connects the positive input terminal of the second amplifier and one end of the second resistance simultaneously, the negative input end of the second amplifier connects one end of the 3rd resistance and one end of the 4th resistance simultaneously, the other end ground connection of the 3rd resistance, the other end of the 4th resistance connects the output of the second amplifier, and the output of the second amplifier is as the output of data acquisition unit: the other end of the second described resistance connects output and the negative input end of the 3rd amplifier simultaneously, the positive input terminal of the 3rd amplifier connects the output of the 4th amplifier and one end of the 5th resistance simultaneously, the other end of the 5th resistance connects the negative input end of the 4th amplifier and one end of the 6th resistance simultaneously, another termination power of 6th resistance, the positive input terminal of the 4th amplifier connects one end of the 7th resistance and one end of the 8th resistance simultaneously, the other end of the 7th resistance and the equal ground connection of the other end of the 8th resistance.
3. self-adaptive single neuron control device according to claim 2, is characterized in that: described data acquisition unit is the first data acquisition unit or the second data acquisition unit or the 3rd data acquisition unit or the 4th data acquisition unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614988.6U CN204131104U (en) | 2014-10-22 | 2014-10-22 | A kind of self-adaptive single neuron control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614988.6U CN204131104U (en) | 2014-10-22 | 2014-10-22 | A kind of self-adaptive single neuron control device |
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| Publication Number | Publication Date |
|---|---|
| CN204131104U true CN204131104U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614988.6U Expired - Fee Related CN204131104U (en) | 2014-10-22 | 2014-10-22 | A kind of self-adaptive single neuron control device |
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| CN (1) | CN204131104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269832A (en) * | 2014-10-22 | 2015-01-07 | 沈阳工业大学 | Self-adaptive single-phase recloser control device and method |
| CN104882865A (en) * | 2015-05-20 | 2015-09-02 | 国家电网公司 | Device used for preventing secondary reclosing in line reclosing |
-
2014
- 2014-10-22 CN CN201420614988.6U patent/CN204131104U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269832A (en) * | 2014-10-22 | 2015-01-07 | 沈阳工业大学 | Self-adaptive single-phase recloser control device and method |
| CN104882865A (en) * | 2015-05-20 | 2015-09-02 | 国家电网公司 | Device used for preventing secondary reclosing in line reclosing |
| CN104882865B (en) * | 2015-05-20 | 2017-07-25 | 国家电网公司 | It is a kind of to be used to prevent the device of secondary coincidence in circuit re-switching |
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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: 20150128 Termination date: 20171022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |