CN203026940U - Automatic-compensation device detector for arc suppression coil - Google Patents
Automatic-compensation device detector for arc suppression coil Download PDFInfo
- Publication number
- CN203026940U CN203026940U CN2012206447759U CN201220644775U CN203026940U CN 203026940 U CN203026940 U CN 203026940U CN 2012206447759 U CN2012206447759 U CN 2012206447759U CN 201220644775 U CN201220644775 U CN 201220644775U CN 203026940 U CN203026940 U CN 203026940U
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- Prior art keywords
- arc suppression
- circuit
- suppression coil
- coil
- compensation device
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- 230000001629 suppression Effects 0.000 title claims abstract description 35
- 230000005284 excitation Effects 0.000 claims abstract description 14
- 230000007935 neutral effect Effects 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000005415 magnetization Effects 0.000 abstract 4
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical group [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000004069 differentiation Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides an automatic-compensation device detector for an arc suppression coil, comprising an arc suppression coil, a DC (Direct Current) exciting current circuit and a rectification control circuit. The arc suppression coil is connected between the neutral point of an electric power system and the ground, an iron core magnetization segment is added in the arc suppression coil, a DC excitation coil of the iron core magnetization segment is connected with the DC exciting current circuit in series, the DC exciting current circuit is connected with the rectification control circuit, and the rectification control circuit is composed of a voltage transformer, a neutral point displacement voltage detection circuit, a DSP (Digital Signal Processor), a PID (Proportion Integration Differentiation) circuit regulator and a thyristor triggering circuit. According to the automatic tracking compensation device for the magnetic bias arc suppression coil with such structure, one iron core magnetization segment is arranged in an AC (Alternating Current) work coil, the size of DC magnetic assisting flux on the magnetic path of the iron core magnetization segment is changed so as to regulate the AC equivalent magnetic conductance, thus, the aim of continuous adjustment of inductance is realized. Inside of the automatic-compensation device detector for the arc suppression coil is of a full static structure, and comprises no moving part, so that the automatic-compensation device for the arc suppression coil is high in working reliability.
Description
Technical field
The utility model relates to a kind of power consumption device equipment, relates in particular to the self-complementary device detector of a kind of arc suppression coil.
Background technology
80% left and right in distribution network failure is one-way earth fault, and in order to improve power supply reliability, the power distribution network great majority all adopt the mode of grounding through arc.Along with a large amount of uses of cable in recent years, electric power system faces the problem of arc suppression coil compensation off-capacity day by day.When the arc suppression coil capacity of installing when an electric substation can not satisfy the needs of system capacitive current increase, the common solution of prior art is the larger arc suppression coil of replacing capacity, although this method can temporarily solve the problem of arc suppression coil compensation off-capacity, but extensibility is not good, after the arc suppression coil capacity increased to a certain degree, this method was difficult to carry out.In addition, the equipment that changes is difficult for processing, thereby causes the waste of resource.Moreover the common volume of the arc suppression coil that capacity is larger is larger, and due to the restriction of the factors such as civil engineering and place, it is also unallowed unrestrictedly changing the larger arc suppression coil of volume.
The utility model content
For solving the defects of prior art, the utility model provides a kind of arc suppression coil self-complementary device detector.
The self-complementary device detector of this arc suppression coil comprises arc suppression coil, DC excitation current circuit and rectifier control circuit; Described arc suppression coil is connected between the neutral point and ground of electric power system, be added with a magnetised section unshakable in one's determination in arc suppression coil, the direct-flow magnet exciting coil of magnetised section unshakable in one's determination is connected in series mutually with the DC excitation current circuit, described DC excitation current circuit is connected with described rectifier control circuit, and described rectifier control circuit is comprised of voltage transformer, neutral point displacement voltage testing circuit, dsp processor, PID circuit adjustment device and thyristor gating circuit.
Wherein, described DC excitation current circuit is comprised of rectifier transformer, controllable silicon full-wave bridge rectifier circuit.
Can obtain following beneficial effect by this technology: the arc-suppression coil with magnetic bias automatic tracking compensating device of this structure is to have arranged an iron core magnetised section in its alternate current operation coil, regulate the equivalent magnetic conductance of interchange by the direct current magnetism-assisting magnetic flux size that changes on iron core magnetised section magnetic circuit, realize the continuously adjustable purpose of inductance.Its inside is full static structure, movement-less part, and functional reliability is high.Its fast response time and can regulate inductance value when arc suppression coil bears high voltage.The ratio of its offset current bound can reach 8: 1, is the self-complementary device detector of a kind of very safe and reliable arc suppression coil.
Description of drawings
Fig. 1 is the circuit theory diagrams of the self-complementary device detector of arc suppression coil.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.What here do to illustrate simultaneously is that more detailed in order to make embodiment, the following examples are best, preferred embodiment, also can adopt other alternative and implement for some known technology those skilled in the art; And accompanying drawing part is only in order to describe more specifically embodiment, and is not intended to the utility model is carried out concrete restriction.
As shown in Figure 1, the self-complementary device detector of this arc suppression coil comprises arc suppression coil, DC excitation current circuit and rectifier control circuit; The arc suppression coil of this detector is connected between the neutral point N and the earth of electric power system, be added with a magnetised section unshakable in one's determination in arc suppression coil B1, the direct-flow magnet exciting coil L1 of magnetised section unshakable in one's determination is connected in series mutually with a DC excitation current circuit, and the DC excitation current circuit is connected with rectifier control circuit.
Described DC excitation current circuit is comprised of rectifier transformer T1, controllable silicon full-wave bridge rectifier circuit KG, and rectifier control circuit is comprised of voltage transformer pt, neutral point displacement voltage testing circuit, dsp processor, PID circuit adjustment device and thyristor gating circuit.
Described voltage transformer is connected on network system transformer T2, its output connects the neutral point displacement voltage testing circuit, latter's output is connected to the acquisition module AD FPDP of dsp processor, the data output end of dsp processor connects thyristor gating circuit, and the output of thyristor gating circuit connects the silicon controlled trigger electrode.
Control circuit is implemented continuous monitoring by amplitude and the phase place of the neutral point displacement voltage that the AD acquisition module centering point displacement voltage testing circuit in dsp processor provides, realize that the capacitance current under the electrical network normal operating condition detects from motion tracking, dynamic compensation under the failure operation state, the recovery certainly after fault disappears.
In work, the signaling module in DSP sends the DA instruction, forms the trigger pulse triggers controllable silicon by PID circuit adjustment device, thyristor gating circuit and makes the DC excitation electric current by the L1 of arc suppression coil, and Hall current sensor provides feedback signal.The DA signal of DSP output provides a rectification output current reference signal, Hall current sensor is output as the feedback signal of PID circuit adjustment device, when external circuit is disturbed when making the rectification output current depart from set point, PID circuit adjustment device can be regulated rapidly automatically, makes the rectification output current keep stable.PID circuit adjustment device adopts common circuit to get final product.
It should be noted that at last, above embodiment is only in order to describe the technical solution of the utility model rather than the present technique method is limited, the utility model can extend to other modification, variation, application and embodiment on using, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present utility model and teachings.
Claims (2)
1. self-complementary device detector of arc suppression coil, this detector comprises arc suppression coil, DC excitation current circuit and rectifier control circuit; It is characterized in that:
Described arc suppression coil is connected between the neutral point and ground of electric power system, be added with a magnetised section unshakable in one's determination in arc suppression coil, the direct-flow magnet exciting coil of magnetised section unshakable in one's determination is connected in series mutually with the DC excitation current circuit, described DC excitation current circuit is connected with described rectifier control circuit, and described rectifier control circuit is comprised of voltage transformer, neutral point displacement voltage testing circuit, dsp processor, PID circuit adjustment device and thyristor gating circuit.
2. the self-complementary device detector of arc suppression coil according to claim 1, described DC excitation current circuit is comprised of rectifier transformer, controllable silicon full-wave bridge rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206447759U CN203026940U (en) | 2012-11-30 | 2012-11-30 | Automatic-compensation device detector for arc suppression coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206447759U CN203026940U (en) | 2012-11-30 | 2012-11-30 | Automatic-compensation device detector for arc suppression coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026940U true CN203026940U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206447759U Expired - Fee Related CN203026940U (en) | 2012-11-30 | 2012-11-30 | Automatic-compensation device detector for arc suppression coil |
Country Status (1)
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| CN (1) | CN203026940U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956724A (en) * | 2014-05-26 | 2014-07-30 | 吴俊伟 | Intelligent controller for magnetic bias type arc-suppression coils |
| CN103956726A (en) * | 2014-05-26 | 2014-07-30 | 钟小茹 | Bias type arc suppression coil inductance control system |
| CN105322527A (en) * | 2014-05-26 | 2016-02-10 | 陈其钗 | Novel magnetic-biasing arc extinguishing coil tuning controller |
| CN106786470A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of power network neutral point flexible ground system |
-
2012
- 2012-11-30 CN CN2012206447759U patent/CN203026940U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956724A (en) * | 2014-05-26 | 2014-07-30 | 吴俊伟 | Intelligent controller for magnetic bias type arc-suppression coils |
| CN103956726A (en) * | 2014-05-26 | 2014-07-30 | 钟小茹 | Bias type arc suppression coil inductance control system |
| CN105322527A (en) * | 2014-05-26 | 2016-02-10 | 陈其钗 | Novel magnetic-biasing arc extinguishing coil tuning controller |
| CN106786470A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of power network neutral point flexible ground system |
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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: 20161130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |