CN109167369A - A kind of idle intelligent compensation system and its compensation method based on magnetic valve type controllable reactor - Google Patents
A kind of idle intelligent compensation system and its compensation method based on magnetic valve type controllable reactor Download PDFInfo
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- CN109167369A CN109167369A CN201810857684.5A CN201810857684A CN109167369A CN 109167369 A CN109167369 A CN 109167369A CN 201810857684 A CN201810857684 A CN 201810857684A CN 109167369 A CN109167369 A CN 109167369A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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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 idle intelligent compensation system based on magnetic valve type controllable reactor that the present invention provides a kind of, the intelligent powerless compensation system include signal acquisition unit, signal conditioning unit, A/D converting unit, zero passage synchronization unit, control processing unit, display unit, storage unit, key-press input unit, communication unit, alarm unit, trigger pulse driving unit and reactor；The intelligent powerless compensation system calculates power factor according to the signal of acquisition, by being compared judgement with preset power factor range to the power factor size, it determines the need for carrying out reactive compensation, the thyristor of output start pulse signal to the reactor realizes the switching work of the reactor, changes the output of reactive power by adjusting the IGBT group angle α.The present invention provides a kind of idle intelligent compensation system and compensation method based on magnetic valve type controllable reactor, can be applied to various voltage class, realizes that the continuously smooth of idle output is adjusted.
Description
Technical field
The invention belongs to reactive power compensation technology field, in particular to a kind of idle intelligence based on magnetic valve type controllable reactor
Compensation system and its compensation method.
Background technique
With the rapid development of economy, electric system is also constantly developing, people's lives power demand is also increasingly
Height, electric energy have become a part indispensable in people's life.With the continuous improvement of power demand, people are to electric energy
Quality requirement is also higher and higher.Reactive power is the indispensable a part of electric system, with being continuously increased for power load,
No-power vacancy in power grid is increasing, needs to carry out power grid effective reactive compensation, and then improve the power quality of power grid.
The reactance that reactive power compensator mainly has synchronous capacitor, switch on-off type capacitor group, thyristor to control at present
Device, thyristor switchable capacitor, Static Var Compensator etc..Synchronous capacitor is set by what mechanical switch progress can not compensate
Standby, response speed is slow, switch fault frequency is also high, is easy to happen overvoltage and resonance phenomena.The sound of thyristor switchable capacitor
It answers speed relatively fast, but controls complexity, the idle output of carry out for being unable to continuously smooth is adjusted.The reactor of thyristor control is rung
Answer speed is fast, control flexibly, when being linked into the power grid of high pressure level, limited, needed using multiple crystalline substances by thyristor pressure resistance
Brake tube series connection.Therefore, it is necessary to seek a kind of intelligent powerless compensation dress that can be continuously adjusted and can apply to various voltage class
It sets, it is particularly significant for the efficient of electric system, stable operation.
Summary of the invention
The present invention provides a kind of idle intelligent compensation system and compensation method based on magnetic valve type controllable reactor, Neng Gouying
For various voltage class, realize that the continuously smooth of idle output is adjusted.
The present invention is specially a kind of idle intelligent compensation system based on magnetic valve type controllable reactor, and the Intelligence Reactive Power is mended
The system of repaying includes signal acquisition unit, signal conditioning unit, A/D converting unit, zero passage synchronization unit, control processing unit, shows
Show unit, storage unit, key-press input unit, communication unit, alarm unit, trigger pulse driving unit and reactor, it is described
Signal acquisition unit, the signal conditioning unit, the A/D converting unit, the control processing unit, the trigger pulse drive
Moving cell and the reactor are linked in sequence, and the zero passage synchronization unit is respectively and at the signal conditioning unit, the control
Reason unit be connected, the control processing unit also respectively with the display unit, the storage unit, the key-press input list
First, the described communication unit, the alarm unit are connected；The intelligent powerless compensation system calculates function according to the signal of acquisition
Rate factor, by being compared judgement with preset power factor range to the power factor size, and then determination is
No to need to carry out reactive compensation, the thyristor of output start pulse signal to the reactor realizes the switching work of the reactor
Make, changes the output of reactive power by adjusting the IGBT group angle α, realize the intelligent compensation of reactive power.
The reactor uses magnetic valve type controllable reactor, and the triggering and conducting angle α by changing thyristor changes control electricity
The size of stream, and then adjust the output of the reactor reactive capability.
The acquisition unit includes first voltage mutual inductor, the first current transformer, second voltage mutual inductor, the second electric current
Mutual inductor and temperature sensor, the first voltage mutual inductor acquire mains voltage signal, the first current transformer acquisition
Power network current signal, the second voltage mutual inductor acquire load voltage signal, the second current transformer acquisition load electricity
Signal is flowed, the temperature sensor acquires the operating temperature of the intelligent powerless compensation system.
The signal conditioning unit includes filter module, voltage regulating module, and the filter module uses low-pass filter, filters out
High-frequency signal is interfered, improves output 0~3V voltage signal using the voltage regulating module；The A/D converting unit is by input
Signal carries out A/D conversion.
Mains voltage signal of the zero passage synchronization unit input terminal input after conditioning unit conditioning, using double
Voltage comparator realizes that zero passage just compares: when input voltage is greater than 0V, output voltage 3.3V, when input voltage is less than 0V
When, output voltage 0V；The control processing unit obtains zero crossing according to the zero passage synchronization unit output signal, as institute
State a reference value at reactor IGBT group angle.
The control processing unit calculates power factor, need according to the mains voltage signal of acquisition, current signal
The reactive power to be compensated, then the operating current of the reactor is calculated, it is full according to the operating current I of the reactor and magnetic
Relationship between degree βMagnetic saturation β is calculated, is calculated according to the magnetic saturation β of the reactor
The Trigger Angle of the reactor
The trigger pulse drive amplification unit is amplified the pulse signal of input using pulse transformer, simultaneously will
The reactor is reliably isolated with the control processing unit.
The key-press input unit carries out parameter setting, the parameter packet in conjunction with the display unit, the storage unit
Include the operating temperature alarming value of power factor range, the intelligent powerless compensation device.
The communication unit uses GPRS technology, will be in the intelligent powerless compensation device relevant information using mobile network
It reaches monitoring center, receive the operational order that the monitoring center issues.
The compensation method for the intelligent powerless compensation system based on magnetic valve type controllable reactor that the present invention also provides a kind of, it is described
Compensation method includes the following steps:
Step (1): the signal acquisition unit acquisition mains voltage signal, load voltage signal, is born mains voltage signal
Carry voltage signal, operating temperature；
Step (2): it is filtered by the conditioning unit, pressure regulation processing, transports to the A/D converting unit and the mistake
Zero synchronization unit；
Step (3): the A/D converting unit carries out A/D conversion to the signal of input；
Step (4): the zero passage synchronization unit carries out zero passage and just compares, and exports pulse square wave；
Step (5): the control processing unit according to the voltage signal and current signal of acquisition calculate realtime power because
Number, and displayed data by the display unit, the monitoring center is sent data to by the communication unit；
Step (6): the power factor is compared with the preset power factor range, if being lower than lower limit
Value, the operating temperature of the intelligent powerless compensation device is compared with the temperature alarming value, if temperature is lower than the report
Alert value, the control processing unit calculate reactor IGBT group angle according to the voltage signal and current signal of acquisition
Size issues trigger signal to the trigger pulse driving unit；If temperature is higher than the alarming value, not to the triggering arteries and veins
It rushes driving unit and issues trigger signal, and by alarm unit sending alarm signal, by the communication unit to described
Monitoring center issues heat alarm；
Step (7): the trigger pulse drive amplification unit amplifies the pulse signal of input, and transports to the electricity
Anti- device thyristor；
Step (8): when the power factor is greater than preset reference value upper limit value, the reactor crystalline substance lock is removed
Pipe trigger signal, the reactor stop working.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the idle intelligent compensation system based on magnetic valve type controllable reactor of the present invention.
Specific embodiment
With reference to the accompanying drawing to a kind of the specific of idle intelligent compensation system based on magnetic valve type controllable reactor of the present invention
Embodiment elaborates.
As shown in Figure 1, intelligent powerless compensation system of the invention includes signal acquisition unit, signal conditioning unit, A/D turns
Change unit, zero passage synchronization unit, control processing unit, display unit, storage unit, key-press input unit, communication unit, alarm
Unit, trigger pulse driving unit and reactor, the signal acquisition unit, the signal conditioning unit, A/D conversion are single
First, the described control processing unit, the trigger pulse driving unit and the reactor are linked in sequence, and the zero passage synchronizes list
Member be connected respectively with the signal conditioning unit, the control processing unit, the control processing unit also respectively with it is described
Display unit, the storage unit, the key-press input unit, the communication unit, the alarm unit are connected；The intelligence
Can reactive compensation system power factor calculated according to the signal of acquisition, by the power factor size with it is preset
Power factor range is compared judgement, and then determines the need for carrying out reactive compensation, and output start pulse signal is to described
The thyristor of reactor realizes the switching work of the reactor, changes reactive power by adjusting the IGBT group angle α
Output, realize the intelligent compensation of reactive power.
The reactor uses magnetic valve type controllable reactor, and the triggering and conducting angle α by changing thyristor changes control electricity
The size of stream, and then adjust the output of the reactor reactive capability.
The acquisition unit includes first voltage mutual inductor, the first current transformer, second voltage mutual inductor, the second electric current
Mutual inductor and temperature sensor, the first voltage mutual inductor acquire mains voltage signal, the first current transformer acquisition
Power network current signal, the second voltage mutual inductor acquire load voltage signal, the second current transformer acquisition load electricity
Signal is flowed, the temperature sensor acquires the operating temperature of the intelligent powerless compensation system.
The signal conditioning unit includes filter module, voltage regulating module, and the filter module uses low-pass filter, filters out
High-frequency signal is interfered, improves output 0~3V voltage signal using the voltage regulating module；The A/D converting unit is by input
Signal carries out A/D conversion.
Mains voltage signal of the zero passage synchronization unit input terminal input after conditioning unit conditioning, using double
Voltage comparator realizes that zero passage just compares: when input voltage is greater than 0V, output voltage 3.3V, when input voltage is less than 0V
When, output voltage 0V；The control processing unit obtains zero crossing according to the zero passage synchronization unit output signal, as institute
State a reference value at reactor IGBT group angle.
The control processing unit calculates power factor, need according to the mains voltage signal of acquisition, current signal
The reactive power to be compensated, then the operating current of the reactor is calculated, it is full according to the operating current I of the reactor and magnetic
Relationship between degree βMagnetic saturation β is calculated, is calculated according to the magnetic saturation β of the reactor
The Trigger Angle of the reactor
The trigger pulse drive amplification unit is amplified the pulse signal of input using pulse transformer, simultaneously will
The reactor is reliably isolated with the control processing unit.
The key-press input unit carries out parameter setting, the parameter packet in conjunction with the display unit, the storage unit
Include the operating temperature alarming value of power factor range, the intelligent powerless compensation device.
The communication unit uses GPRS technology, will be in the intelligent powerless compensation device relevant information using mobile network
It reaches monitoring center, receive the operational order that the monitoring center issues.
The compensation method for the intelligent powerless compensation system based on magnetic valve type controllable reactor that the present invention also provides a kind of, it is described
Compensation method includes the following steps:
Step (1): the signal acquisition unit acquisition mains voltage signal, load voltage signal, is born mains voltage signal
Carry voltage signal, operating temperature；
Step (2): it is filtered by the conditioning unit, pressure regulation processing, transports to the A/D converting unit and the mistake
Zero synchronization unit；
Step (3): the A/D converting unit carries out A/D conversion to the signal of input；
Step (4): the zero passage synchronization unit carries out zero passage and just compares, and exports pulse square wave；
Step (5): the control processing unit according to the voltage signal and current signal of acquisition calculate realtime power because
Number, and displayed data by the display unit, the monitoring center is sent data to by the communication unit；
Step (6): the power factor is compared with the preset power factor range, if being lower than lower limit
Value, the operating temperature of the intelligent powerless compensation device is compared with the temperature alarming value, if temperature is lower than the report
Alert value, the control processing unit calculate reactor IGBT group angle according to the voltage signal and current signal of acquisition
Size issues trigger signal to the trigger pulse driving unit；If temperature is higher than the alarming value, not to the triggering arteries and veins
It rushes driving unit and issues trigger signal, and by alarm unit sending alarm signal, by the communication unit to described
Monitoring center issues heat alarm；
Step (7): the trigger pulse drive amplification unit amplifies the pulse signal of input, and transports to the electricity
Anti- device thyristor；
Step (8): when the power factor is greater than preset reference value upper limit value, the reactor crystalline substance lock is removed
Pipe trigger signal, the reactor stop working.
Finally it should be noted that only illustrating technical solution of the present invention rather than its limitations in conjunction with above-described embodiment.Institute
The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair a specific embodiment of the invention
Change or equivalent replacement, but these modifications or change are being applied among pending claims.
Claims (10)
1. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor, which is characterized in that the intelligent powerless compensation
System includes signal acquisition unit, signal conditioning unit, A/D converting unit, zero passage synchronization unit, control processing unit, display
Unit, storage unit, key-press input unit, communication unit, alarm unit, trigger pulse driving unit and reactor, the letter
Number acquisition unit, the signal conditioning unit, the A/D converting unit, the control processing unit, trigger pulse driving
Unit and the reactor are linked in sequence, and the zero passage synchronization unit is handled with the signal conditioning unit, the control respectively
Unit is connected, the control processing unit also respectively with the display unit, the storage unit, the key-press input list
First, the described communication unit, the alarm unit are connected；The intelligent powerless compensation system calculates function according to the signal of acquisition
Rate factor, by being compared judgement with preset power factor range to the power factor size, and then determination is
No to need to carry out reactive compensation, the thyristor of output start pulse signal to the reactor realizes the switching work of the reactor
Make, changes the output of reactive power by adjusting the IGBT group angle α, realize the intelligent compensation of reactive power.
2. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 1, feature exist
In the reactor uses magnetic valve type controllable reactor, and the triggering and conducting angle α by changing thyristor changes the big of control electric current
It is small, and then adjust the output of the reactor reactive capability.
3. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 2, feature exist
In the acquisition unit includes first voltage mutual inductor, the first current transformer, second voltage mutual inductor, the second Current Mutual Inductance
Device and temperature sensor, the first voltage mutual inductor acquire mains voltage signal, and first current transformer acquires power grid
Current signal, the second voltage mutual inductor acquire load voltage signal, the second current transformer acquisition load current letter
Number, the temperature sensor acquires the operating temperature of the intelligent powerless compensation system.
4. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 3, feature exist
In the signal conditioning unit includes filter module, voltage regulating module, and the filter module uses low-pass filter, filters out interference
High-frequency signal improves output 0~3V voltage signal using the voltage regulating module；The A/D converting unit is by the signal of input
Carry out A/D conversion.
5. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 4, feature exist
In mains voltage signal of the zero passage synchronization unit input terminal input after conditioning unit conditioning, using twin voltage
Comparator realizes that zero passage just compares: when input voltage is greater than 0V, output voltage 3.3V, and when input voltage is less than 0V,
Output voltage is 0V；The control processing unit obtains zero crossing according to the zero passage synchronization unit output signal, as described
The a reference value at reactor IGBT group angle.
6. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 5, feature exist
In the control processing unit calculates power factor according to the mains voltage signal of acquisition, current signal, needs to compensate
Reactive power, then the operating current of the reactor is calculated, according to the operating current I of the reactor and magnetic saturation β
Between relationshipMagnetic saturation β is calculated, is calculated according to the magnetic saturation β of the reactor described
The Trigger Angle of reactor
7. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 6, feature exist
In the trigger pulse drive amplification unit is amplified the pulse signal of input using pulse transformer, while will be described
Reactor is reliably isolated with the control processing unit.
8. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 8, feature exist
In the key-press input unit carries out parameter setting in conjunction with the display unit, the storage unit, and the parameter includes power
The operating temperature alarming value of factor range, the intelligent powerless compensation device.
9. a kind of intelligent powerless compensation system based on magnetic valve type controllable reactor according to claim 9, feature exist
In the communication unit uses GPRS technology, is uploaded to the intelligent powerless compensation device relevant information using mobile network
Monitoring center receives the operational order that the monitoring center issues.
10. the intelligent powerless compensation system described in any one of -9 based on magnetic valve type controllable reactor according to claim 1
Compensation method, which is characterized in that the compensation method includes the following steps:
Step (1): the signal acquisition unit acquisition mains voltage signal, mains voltage signal, load voltage signal, load electricity
Press signal, operating temperature；
Step (2): it is filtered by the conditioning unit, pressure regulation processing, transports to the A/D converting unit and the zero passage is same
Walk unit；
Step (3): the A/D converting unit carries out A/D conversion to the signal of input；
Step (4): the zero passage synchronization unit carries out zero passage and just compares, and exports pulse square wave；
Step (5): the control processing unit calculates realtime power factor according to the voltage signal and current signal of acquisition, and
It is displayed data by the display unit, the monitoring center is sent data to by the communication unit；
Step (6): the power factor is compared with the preset power factor range, if being lower than lower limit value,
The operating temperature of the intelligent powerless compensation device is compared with the temperature alarming value, if temperature is lower than the alarm
Value, it is big that the control processing unit according to the voltage signal and current signal of acquisition calculates reactor IGBT group angle
It is small, trigger signal is issued to the trigger pulse driving unit；If temperature is higher than the alarming value, not to the trigger pulse
Driving unit issues trigger signal, and by alarm unit sending alarm signal, by the communication unit to the prison
Control center issues heat alarm；
Step (7): the trigger pulse drive amplification unit amplifies the pulse signal of input, and transports to the reactor
Thyristor；
Step (8): when the power factor is greater than preset reference value upper limit value, the reactor thyristor touching is removed
It signals, the reactor stops working.
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| CN201810857684.5A CN109167369A (en) | 2018-07-31 | 2018-07-31 | A kind of idle intelligent compensation system and its compensation method based on magnetic valve type controllable reactor |
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| CN201810857684.5A CN109167369A (en) | 2018-07-31 | 2018-07-31 | A kind of idle intelligent compensation system and its compensation method based on magnetic valve type controllable reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176774A (en) * | 2019-03-07 | 2019-08-27 | 日照钢铁控股集团有限公司 | A kind of device that quickly resumes production of AC/AC (alternating current) variable-frequency rolling line jettisoning SVC |
| CN111799831A (en) * | 2020-06-12 | 2020-10-20 | 国电南瑞科技股份有限公司 | Phase modulator and converter transformer on-load voltage regulation tap coordination control method and system |
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| CN208874293U (en) * | 2018-07-03 | 2019-05-17 | 国网江苏省电力有限公司徐州供电分公司 | A kind of idle intelligent compensation system based on magnetic valve type controllable reactor |
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- 2018-07-31 CN CN201810857684.5A patent/CN109167369A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208874293U (en) * | 2018-07-03 | 2019-05-17 | 国网江苏省电力有限公司徐州供电分公司 | A kind of idle intelligent compensation system based on magnetic valve type controllable reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176774A (en) * | 2019-03-07 | 2019-08-27 | 日照钢铁控股集团有限公司 | A kind of device that quickly resumes production of AC/AC (alternating current) variable-frequency rolling line jettisoning SVC |
| CN111799831A (en) * | 2020-06-12 | 2020-10-20 | 国电南瑞科技股份有限公司 | Phase modulator and converter transformer on-load voltage regulation tap coordination control method and system |
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