CN202906477U - Thyristor switching control module for reactive compensation capacitor - Google Patents
Thyristor switching control module for reactive compensation capacitor Download PDFInfo
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- CN202906477U CN202906477U CN 201220584269 CN201220584269U CN202906477U CN 202906477 U CN202906477 U CN 202906477U CN 201220584269 CN201220584269 CN 201220584269 CN 201220584269 U CN201220584269 U CN 201220584269U CN 202906477 U CN202906477 U CN 202906477U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a thyristor switching control module for a reactive compensation capacitor. The thyristor switching control module comprises a zero-crossing detection unit for extracting a zero-crossing signal and shaping the zero-crossing signal into a PWM pulse reference; a switching enabling unit for being connected with an external enabling signal terminal and sending a switching signal to a microprocessor unit; the microprocessor unit for performing detection, logic determination, calculation, switching value output and PWM pulse output on the zero-crossing signal; and an output unit for driving a bidirectional thyristor. A signal output terminal of the zero-crossing detection unit is electrically connected with a digital I/O input terminal of the microprocessor unit; a signal output terminal of the switching enabling unit is electrically connected with an enabling input terminal of the microprocessor unit; and a signal output terminal of the microprocessor unit is electrically connected with an input terminal of the output unit. The thyristor switching control module for the reactive compensation capacitor can realize the zero-crossing switching of the bidirectional thyristor and prevent the power grid and electric equipment from being impacted by a harmonic wave rush current.
Description
Technical field
The utility model relates to electric power compensation control technology field, particularly relates to a kind of reactive-load compensation capacitor thuristor throw-in and throw-off control module.
Background technology
At present, the electric reactive compensating device is finished by the control of reactive power compensating unit and electric reactive compensating switching unit two parts, above-mentioned electric reactive compensating switching unit can produce when switching and shove and harmonic wave, therefore when capacitor drops into, can cause certain impact to electrical network and electric equipment, thereby cause equipment to have certain impaired potential safety hazard; Therefore design a kind of reactive-load compensation capacitor thuristor throw-in and throw-off control module of impacting without the harmonic wave no-flashy-flow and seem particularly important.
Summary of the invention
Goal of the invention of the present utility model is: design a kind of reactive-load compensation capacitor thuristor throw-in and throw-off control module; By adopting zero passage detection unit and microprocessor unit, realize operating passing zero; Avoided electrical network and electric equipment to be subject to the impact that harmonic wave shoves.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of reactive-load compensation capacitor thuristor throw-in and throw-off control module comprises:
Be used for extracting zero cross signal, and described zero cross signal be shaped as the zero passage detection unit of pwm pulse benchmark;
Be used for being connected with outside enable signal terminal, and enable the unit to the switching of microprocessor unit transmission switching signal;
Be used for to described zero cross signal detect, the microprocessor unit of logic decision, computing, switching value output and the output of pwm pulse benchmark;
And the output unit that is used for providing to bidirectional thyristor driving;
Wherein: the signal output terminal of described zero passage detection unit is electrically connected with the digital quantity I/O input of described microprocessor unit; The signal output part that described switching enables the unit is electrically connected with the input that enables of described microprocessor unit; The signal output part of described microprocessor unit is electrically connected with the input of described output unit.
As preferred version, the utility model has also adopted following technical scheme:
Described microprocessor unit is 32 arm processor STM32F103RC;
Described zero passage detection unit comprises successively series connection: current-limiting resistance, optocoupler, with door and Schmidt's not gate;
Described switching enables the unit and comprises: switching signal, current-limiting resistance and optocoupler;
Described output unit comprises being connected with diode with door, triode, pulse transformer and is connected.
Advantage and the good effect that the utlity model has are: one, by adopting zero passage detection unit and microprocessor unit, the utility model has been realized the operating passing zero of bidirectional thyristor; Avoided electrical network and electric equipment to be subject to the impact that harmonic wave shoves; The processes such as two, zero cross signal detection of the present utility model, logic decision, computing, switching value output and the output of pwm pulse benchmark all adopt software program to realize, thereby have greatly simplified circuit structure.
Description of drawings
Fig. 1 is the circuit block diagram of a kind of reactive-load compensation capacitor thuristor throw-in and throw-off of the utility model control module;
Fig. 2 is the circuit theory diagrams of a kind of reactive-load compensation capacitor thuristor throw-in and throw-off of the utility model control module; Be mainly used in showing that switching enables the circuit connecting relation of unit;
Fig. 3 is the circuit theory diagrams of a kind of reactive-load compensation capacitor thuristor throw-in and throw-off of the utility model control module; Be mainly used in showing the circuit connecting relation of zero passage detection unit;
Fig. 4 is the circuit theory diagrams of a kind of reactive-load compensation capacitor thuristor throw-in and throw-off of the utility model control module; Be mainly used in showing the circuit connecting relation of output unit;
Fig. 5 is the circuit theory diagrams of a kind of reactive-load compensation capacitor thuristor throw-in and throw-off of the utility model control module; Be mainly used in showing the circuit connecting relation of microprocessor unit.
Wherein: 1, zero passage detection unit; 2, microprocessor unit; 3, output unit; 4, switching enables the unit.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1, a kind of reactive-load compensation capacitor thuristor throw-in and throw-off control module comprises: zero passage detection unit 1, microprocessor unit 2, output unit 3 and switching enable unit 4; Wherein: zero passage detection unit 1 is used for extracting zero cross signal, and described zero cross signal is shaped as the pwm pulse benchmark; Switching enables unit 4 and is used for being connected with outside enable signal terminal, and sends the switching signal to microprocessor unit 2; Microprocessor unit 2 is the Core Feature parts of this control device, microprocessor unit 2 be used for to described zero cross signal detect, logic decision, computing, switching value output and the output of pwm pulse benchmark; Output unit 3 is used for providing driving to anti-parallel thyristor; The signal output part of zero passage detection unit 1 is electrically connected with the digital quantity I/O input of microprocessor unit 2; The signal output part that switching enables unit 4 is electrically connected with the input that enables of microprocessor unit 2; The signal output part of microprocessor unit 2 is electrically connected with the input of output unit 3.
See also Fig. 2, switching enables unit 4 and comprises successively series connection: switching signal P1, current-limiting resistance R29 and optocoupler V4.3.3V power supply be connected with the input that enables of microprocessor unit 2 through pull-up resistor R28.
See also Fig. 3, zero passage detection unit 1 is the three-phase zero cross detection circuit, and the first-phase testing circuit comprises successively series connection: current-limiting resistance, optocoupler V1, with door U1B, Schmidt's not gate U2A; The second-phase testing circuit comprises successively series connection: current-limiting resistance, optocoupler V2, with door U1C, Schmidt's not gate U2B; The third phase testing circuit comprises successively series connection: current-limiting resistance, optocoupler V1, with door U1D, Schmidt's not gate U2C.
See also Fig. 4, output unit 3 is three road anti-parallel thyristor cell driving circuits; Wherein first via circuit comprises: be connected successively with door U10B, metal-oxide-semiconductor Q1, voltage-stabiliser tube diode (D42, D43), pulse transformer TM1 and terminals P 3; The the second road circuit comprises: be connected successively with door U10C, metal-oxide-semiconductor Q2, voltage-stabiliser tube diode (D48, D49), pulse transformer TM2 and P4 terminal; The Third Road circuit comprises: be connected successively with door U10D, metal-oxide-semiconductor Q3, voltage-stabiliser tube diode (D53, D55), pulse transformer TM3 and terminals P 5.
See also Fig. 5, microprocessor unit 2 is the core component of idle switching control unit, and the pin PC1 of micro-chip processor U4, pin PC2, pin PC3 link to each other respectively at current-limiting resistance R79, resistance R 80, resistance R 81 and three-phase zero cross detection circuit electricity; The pin PA8 of micro-chip processor U4, pin PA9, pin PA10, pin PB13, pin PB14, pin PB15 are electrically connected with output unit 3 respectively successively; Pin PC0 and the switching of micro-chip processor U4 enables unit 4 and is electrically connected; Pin PC8 is connected with switching indicator light point; Pin PC6 is electrically connected with malfunction indicator lamp; Pin PC10 is electrically connected with relay indicating light.
More than embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (5)
1. reactive-load compensation capacitor thuristor throw-in and throw-off control module is characterized in that: comprising:
Be used for extracting zero cross signal, and described zero cross signal be shaped as the zero passage detection unit of pwm pulse benchmark;
Be used for being connected with outside enable signal terminal, and enable the unit to the switching of microprocessor unit transmission switching signal;
Be used for to described zero cross signal detect, the microprocessor unit of logic decision, computing, switching value output and the output of pwm pulse benchmark;
And the output unit that is used for providing to bidirectional thyristor driving;
Wherein: the signal output part of described zero passage detection unit is electrically connected with the digital quantity I/O input of described microprocessor unit; The signal output part that described switching enables the unit is electrically connected with the input that enables of described microprocessor unit; The signal output part of described microprocessor unit is electrically connected with the input of described output unit.
2. reactive-load compensation capacitor thuristor throw-in and throw-off control module according to claim 1, it is characterized in that: described microprocessor unit is 32 arm processor STM32F103RC.
3. reactive-load compensation capacitor thuristor throw-in and throw-off control module according to claim 1 is characterized in that: described zero passage detection unit comprises series connection successively: current-limiting resistance, optocoupler, with door and Schmidt's not gate.
4. reactive-load compensation capacitor thuristor throw-in and throw-off control module according to claim 1, it is characterized in that: described switching enables the unit and comprises: switching enables, current-limiting resistance and optocoupler.
5. reactive-load compensation capacitor thuristor throw-in and throw-off control module according to claim 1 is characterized in that: described output unit comprises and connecting successively: with door, triode, pulse transformer and diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584269 CN202906477U (en) | 2012-05-09 | 2012-11-07 | Thyristor switching control module for reactive compensation capacitor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220220620.2 | 2012-05-09 | ||
| CN201220220620 | 2012-05-09 | ||
| CN 201220584269 CN202906477U (en) | 2012-05-09 | 2012-11-07 | Thyristor switching control module for reactive compensation capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN202906477U true CN202906477U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220584269 Expired - Fee Related CN202906477U (en) | 2012-05-09 | 2012-11-07 | Thyristor switching control module for reactive compensation capacitor |
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| CN (1) | CN202906477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716027A (en) * | 2013-12-31 | 2014-04-09 | 深圳市英威腾电气股份有限公司 | Controllable silicon drive circuit |
| CN107689733A (en) * | 2017-09-01 | 2018-02-13 | 壮都通信股份有限公司 | A kind of preservation method and electromagnetism fresh-keeping device |
-
2012
- 2012-11-07 CN CN 201220584269 patent/CN202906477U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716027A (en) * | 2013-12-31 | 2014-04-09 | 深圳市英威腾电气股份有限公司 | Controllable silicon drive circuit |
| CN107689733A (en) * | 2017-09-01 | 2018-02-13 | 壮都通信股份有限公司 | A kind of preservation method and electromagnetism fresh-keeping device |
| CN107689733B (en) * | 2017-09-01 | 2021-02-09 | 壮都通信股份有限公司 | Preservation method and electromagnetic preservation device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300308 No. 268, Aviation Road, Airport Economic Zone, Binhai New Area, Tianjin Patentee after: Tianjin Ruiling Petroleum Equipment Co., Ltd. Address before: 300308 No. 268, Aviation Road, Airport Economic Zone, Binhai New Area, Tianjin Patentee before: Tianjin Ruiling Petroleum Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20161107 |