CN104549758B - Electrostatic field voltage control method and system for electrostatic dust collector - Google Patents
Electrostatic field voltage control method and system for electrostatic dust collector Download PDFInfo
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- CN104549758B CN104549758B CN201510044638.XA CN201510044638A CN104549758B CN 104549758 B CN104549758 B CN 104549758B CN 201510044638 A CN201510044638 A CN 201510044638A CN 104549758 B CN104549758 B CN 104549758B
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Abstract
The invention discloses an electrostatic field voltage control method and system for an electrostatic dust collector, and mainly aims at providing electrostatic field voltage control methods and systems for the electrostatic dust collector, which can meet the national emission standard, and saves an energy source. The method comprises the following steps: calculating the spark rate in an electrostatic field, comparing the size relationship between the spark rate and a spark rate preset value; if the spark rate is smaller than or equal to the spark rate preset value, calculating back corona voltage and power deviation rectifying coefficients in the electrostatic field, and determining dust removal instruction voltage; and if the spark rate is greater than the spark rate preset value, judging the dust removal instruction voltage to be a preset instruction voltage value. When the spark rate is smaller than or equal to the spark rate preset value, the content of dust in the unit volume of a discharge outlet meets the national discharge standard by the power deviation rectifying coefficient; and when the spark rate is increased to the spark rate preset value, the upper limit of the dust removal instruction voltage is controlled to be a preset instruction voltage value, so that the spark rate in the electrostatic field is not too high, excessive energy of the electrostatic dust collector consumed on a large number of sparks is avoided; and the energy source is saved.
Description
Technical field
The present invention relates to a kind of electrostatic field voltage control method of electrostatic precipitator and system.
Background technology
At present, in the production process having of short duration low flue dust, such as converter dry dedusting, the electrostatic field electricity of electrostatic precipitator
The target of pressure control system is all the stable high voltage under the conditions of pursuit meets power output, and method used is also confined to boost
Convergence path on, its thinking is：As long as voltage does not have bust, system will pursue the limit high pressure of product design with different paths
Value or current value.This method makes the big energy output of electrostatic precipitator consume on spark, wastes the considerable energy, with
When cause the fluctuation of electrostatic field voltage again, macroscopically affect dust removing effects.
Content of the invention
For the problems referred to above, the present invention provides a kind of the quiet of electrostatic precipitator meeting discharging standards, energy saving
Voltage of electric field control method and system.
For reaching above-mentioned purpose, the electrostatic field voltage control method of the electrostatic precipitator that the present invention provides is：
Calculate the spark rate in described electrostatic field, and compare the magnitude relationship of spark rate and spark rate preset value,
If spark rate is less than or equal to spark rate preset value, calculate the inverse corona voltage in described electrostatic field, and according to row
Put what the effective power that the preset value of fume amount and detected value in mouthful unit volume calculate to electrostatic field cleaner unit was modified
Power coefficient of rectifying deviation；Dedusting command voltage is calculated according to described inverse corona voltage and described power coefficient of rectifying deviation, and this is removed
Dirt command voltage exports to electrostatic precipitator；
If spark rate is more than spark rate preset value, exporting to the dedusting command voltage of electrostatic precipitator is preset instructions voltage
Value.
The electrostatic field voltage control system of the electrostatic precipitator that the present invention provides, refers to including spark rate module, the first dedusting
Make voltage module and the second dedusting command voltage module；
Described spark rate module includes spark rate computing module and spark rate comparison module, and described spark rate computing module is used
In calculating the spark rate in described electrostatic field, spark rate comparison module is used for the big of relatively described spark rate and spark rate preset value
Little relation；
First dedusting command voltage module is used for calculating spark rate less than or equal to dedusting instruction during spark rate preset value
Voltage；First dedusting command voltage computing module includes inverse corona voltage computing module, power coefficient of rectifying deviation PID module and instruction
Voltage computing module；Wherein inverse corona voltage computing module is used for calculating the inverse corona voltage in electrostatic field；Power coefficient of rectifying deviation
PID module calculates effective to electrostatic field cleaner unit for the preset value according to fume amount in floss hole unit volume and detected value
The power coefficient of rectifying deviation that power is modified；Command voltage computing module is used for being entangled according to described inverse corona voltage and described power
Parital coefficient calculates dedusting command voltage, and exports to electrostatic precipitator；
If the second dedusting command voltage module is used for spark rate is more than spark rate preset value, export removing to electrostatic precipitator
Dirt command voltage is preset instructions magnitude of voltage.
Control method and system that the present invention provides, when spark rate is less than or equal to spark rate preset value, according to described anti-electricity
Corona voltage and described power coefficient of rectifying deviation calculate dedusting command voltage, wherein can calculate effective electricity according to inverse corona voltage
Pressure, thus obtaining effective power, being modified to effective power using described power coefficient of rectifying deviation, making in floss hole unit volume
Amount of dust meet discharging standards.When spark rate increases to spark rate preset value, control the upper limit of dedusting command voltage
For preset instructions magnitude of voltage, make the spark rate in electrostatic field not too large, cleaner unit ramping effect can be improved simultaneously again, it is to avoid
Excessive the consuming on a large amount of sparks it is seen that present invention achieves the control effect of low spark rate, inciting somebody to action of energy of electrostatic precipitator
Energy is to greatest extent in order to dedusting, thus having saved the energy.
Brief description
Fig. 1 is the block diagram of the electrostatic field voltage control system of four electrostatic precipitator；
Fig. 2 is the block diagram of the electrostatic field voltage control system of 1# electrostatic precipitator in Fig. 1；
Specific embodiment
With reference to Figure of description, the present invention will be further described.
The present invention provides a kind of electrostatic field voltage control method of electrostatic precipitator, and methods described is：
Calculate the spark rate in described electrostatic field, and compare the magnitude relationship of spark rate and spark rate preset value.
The concrete calculating process of spark rate is as shown in figure 1, the electrostatic precipitator that obtained according to secondary meter measurement first
Measurement voltage V1, calculate measurement voltage V1Rate over timeIf △ is V1More than default rate of change VdWhen, then
Calculating electrostatic field flashover number of times per minute is spark rateWherein t is the time that this flashover occurs, tlastFor
The time that last flashover occurs.
If spark rate is less than or equal to spark rate preset value, calculate the inverse corona voltage in described electrostatic field, and according to row
Put what the effective power that the preset value of fume amount and detected value in mouthful unit volume calculate to electrostatic field cleaner unit was modified
Power coefficient of rectifying deviation；Dedusting command voltage is calculated according to described inverse corona voltage and described power coefficient of rectifying deviation, and this is removed
Dirt command voltage exports to electrostatic precipitator；
The calculating of inverse corona voltage can only be carried out under idle condition, using upper once unloaded in whole smelting cycle
Under the conditions of the inverse corona voltage tried to achieve until the arrival of idle condition next time.The process of converter smelting include successively hot metal charging,
Plus steel scrap, blowing, thermometric sampling, tapping, slag splashing, slag tap, these signals can be delivered to quiet by converter system by network
Electric cleaner.
Before electrostatic precipitator builds up operation, just finish after the cleaning of electrostatic precipitator pole plate, thermometric samples, slags tap, blows
The stages such as refining interval are all regarded as idle condition.Before electrostatic precipitator builds up operation and just finish electrostatic precipitator pole
It is believed that there is no inverse corona, in the case of just can obtaining there is no inverse corona now by no-load test in the case of after plate cleaning, this is in two
Different detection electric current A1With corresponding detection voltage v0, then the functional relationship simulating both by numerical analysis：
v0=f01(A1) (1)
And sample, slag tap in thermometric, the stages such as interval of blowing there may be inverse corona, now by no-load test just
Electric current A is detected in the case of can obtaining having inverse corona1With detection voltage v1, by A1Substitution formula (1) obtains v0, then inverse corona electricity
Pressure Vr1Size be：
Vr1=v1-v0(2)
It can be seen that when having inverse corona under idle condition, inverse corona voltage Vr1Size be electrostatic precipitator now detection electricity
Stream A1Corresponding detection voltage v1Detection voltage v corresponding with the case of not having inverse corona0Between difference.
There is detection electric current A during inverse corona according to zero load1With detection voltage v1With functional relation during unloaded no inverse corona
(1), inverse corona voltage and the functional relationship of the detection electric current having during inverse corona and detection voltage are：
Vr1=f (v1,A1,f01(A1)) (3)
The determination methods that there is inverse corona in one smelting cycle are：Under idle condition, of short duration turn down voltage successively simultaneously
After rapping electric field, if now there is inverse corona then it is assumed that there is inverse corona in this smelting cycle all the time in this electrostatic field.
In the described unit volume according to floss hole, the preset value of fume amount and detected value calculate to electrostatic field cleaner unit
The power coefficient of rectifying deviation that effective power is modified, specially：
In described floss hole unit volume, the preset value of fume amount is mst, the inspection of fume amount in described floss hole unit volume
Measured value is m, by above-mentioned preset value mstDeviation and measured value m between calculates power coefficient of rectifying deviation ke, use keQuiet to adjust
The effective power of electric cleaner, makes effective power be converted into command power.Wherein in floss hole unit volume, fume amount is default
Value mstIt is to specify dust removing effects to set according to the dust removing effects reaching in advance, and dust removing effects are based on discharging standards,
So the control method that the present invention provides is to control dedusting command voltage according to national discharge standard.
Wherein active voltage can be calculated according to inverse corona voltage, thus obtaining effective power, using the correction of described power
Coefficient keThe effective power of electrostatic field cleaner unit is modified it is seen then that when spark rate n is less than or equal to according to specified dust removing effects
Spark rate preset value ndWhen, according to described inverse corona voltage Vr1With described power coefficient of rectifying deviation keThe dedusting command voltage calculating
Meet discharging standards.
If spark rate is more than spark rate preset value, exporting to the dedusting command voltage of electrostatic precipitator is preset instructions voltage
Value Vst1.So, when spark rate increases to spark rate preset value, control dedusting command voltage Vset1The upper limit be preset instructions
Magnitude of voltage Vst1, make the spark rate in electrostatic field not too large, it is to avoid the excessive consumption of the energy of electrostatic precipitator is in fire in a large number
Take.The correction factor that system passes through to improve the secondary meter of other electrostatic fields works in coordination with power coefficient of rectifying deviation keWith increase other 3
The power of the individual electrostatic field dust removing effects overall to ensure system.And in magnitude of voltage Vst1Lower beating dust collector, ramping effect is more
Well, remove inverse corona better simultaneously.It can be seen that present invention achieves the control effect of low spark rate, energy is used to greatest extent
With dedusting, thus having saved the energy.
Wherein dedusting command voltage is calculated according to described inverse corona voltage and described power coefficient of rectifying deviation, its concrete steps
For：
Measurement voltage V by electrostatic precipitator1Deduct described inverse corona voltage Vr1, using the difference obtaining as active voltage
V′1；Specifically computing formula is：
V′1=V1-Vr1(4)
V′1Active voltage when exactly blowing is the difference of detection voltage and inverse corona voltage.
Effective power is active voltage V '1, the measurement electric current A of electrostatic precipitator1And the correction factor k of secondary meteriPhase
Take advantage of, and using the result being multiplied as effective power p1, by effective power p1With power coefficient of rectifying deviation keProduct as command power
p'1.
The computing formula of effective power is：
p1=ki×V′1×A1(5)
Wherein kiRepresent the correction factor of secondary meter used in i-th electrostatic precipitator, exist in order to eliminate secondary meter
Error in measurement process, between measured value and actual value.The correction factor of each secondary meter is different, can record in advance.Refer to
The computing formula making power is：
p'1=ke×p1(6)
Calculate described command power p'1Measurement electric current A with electrostatic precipitator1Ratio, will be effective as dedusting for this ratio
Command voltage V "1, specific formula for calculation is：
Calculate described dedusting effective instruction voltage V "1With described inverse corona voltage Vr1Sum, using the result of summation as removing
Dirt command voltage Vset1.Specifically computing formula is：
Vset1=V "1+Vr1(8)
Due in p'1Calculating process in, the preset value m of fume amount in floss hole unit volumestIt is according to specified dedusting
Effect sets, so when spark rate n is less than or equal to described spark rate preset value ndWhen, described dedusting command voltage Vset1It is basis
Specified dust removing effects are that discharging standards are tried to achieve.
The present invention provides a kind of electrostatic field voltage control system of electrostatic precipitator, this system include spark rate module, the
One dedusting command voltage module and the second dedusting command voltage module.
Described spark rate module includes spark rate computing module and spark rate comparison module, and described spark rate computing module is used
In calculating the spark rate in described electrostatic field, spark rate comparison module is used for the big of relatively described spark rate and spark rate preset value
Little relation.
The concrete calculating process of spark rate is as shown in figure 1, the electrostatic precipitator that obtained according to secondary meter measurement first
Measurement voltage V1, calculate measurement voltage V1Rate over timeIf △ is V1More than default rate of change VdWhen, then
Calculating electrostatic field flashover number of times per minute is spark rateWherein t is the time that this flashover occurs, tlastFor
The time that last flashover occurs.
First dedusting command voltage module is used for calculating spark rate less than or equal to dedusting instruction during spark rate preset value
Voltage.First dedusting command voltage computing module includes inverse corona voltage computing module, power coefficient of rectifying deviation PID module and instruction
Voltage computing module.
Wherein inverse corona voltage computing module is used for calculating the inverse corona voltage in electrostatic field, and the calculating of inverse corona voltage is only
Can carry out under idle condition, in whole smelting cycle using the inverse corona voltage tried to achieve under upper once idle condition until
The arrival of idle condition next time.The process of converter smelting include successively hot metal charging, plus steel scrap, blowing, thermometric sampling, tap,
Slag splashing, slag tap, these signals can deliver to electrostatic precipitator by converter system by network.
Before electrostatic precipitator builds up operation, just finish after the cleaning of electrostatic precipitator pole plate, thermometric samples, slags tap, blows
The stages such as refining interval are all regarded as idle condition.Before electrostatic precipitator builds up operation and just finish electrostatic precipitator pole
It is believed that there is no inverse corona in the case of after plate cleaning, this is in two, just can obtain not having different in the case of inverse corona by no-load test
Detection electric current A1With corresponding detection voltage v0, then both functional relationships are simulated by numerical analysis, see formula (1).And
Sample, slag tap in thermometric, the stages such as interval of blowing there may be inverse corona, just can obtain the feelings having inverse corona by no-load test
Electric current A is detected under condition1With detection voltage v1's.When having inverse corona under idle condition, inverse corona voltage Vr1Size be electrostatic
Cleaner unit detection electric current A now1Corresponding detection voltage v1Detection voltage v corresponding with the case of not having inverse corona0Between
Difference, that is, detect electric current corresponding detection voltage v in the case of having inverse corona1Inspection corresponding with the case of not having inverse corona
Survey voltage v0Between difference, be specifically shown in formula (2).
According to the detection electric current A having during inverse corona1, corresponding detection voltage v1With corresponding detection voltage v0, obtain anti-electricity
Corona voltage and the functional relationship of above-mentioned three, are shown in formula (3).
Power coefficient of rectifying deviation PID module is used for preset value and detected value calculating according to fume amount in floss hole unit volume
The power coefficient of rectifying deviation that the effective power of electrostatic field cleaner unit is modified.PID represents proportional-integral-differential, and power is rectified a deviation
FACTOR P ID module is a pid control module.
Two |input parametes of this power coefficient of rectifying deviation PID module are：The preset value of fume amount in floss hole unit volume
mst, in floss hole unit volume fume amount detected value m.By above-mentioned preset value mstDeviation and measured value m between calculates
Power coefficient of rectifying deviation ke, use keTo adjust the effective power of electrostatic precipitator, to make effective power be converted into command power.Wherein arrange
Put the preset value m of fume amount in mouthful unit volumestIt is to specify dust removing effects to set according to the dust removing effects reaching in advance, and dedusting
Effect is based on discharging standards, so the discharge standard that the control system that the present invention provides can be national controls dedusting instruction
The size of voltage.
Command voltage computing module is used for according to described inverse corona voltage Vr1Calculate dedusting with described power coefficient of rectifying deviation
Command voltage, and export to electrostatic precipitator.Wherein active voltage can be calculated according to inverse corona voltage, thus obtaining Effective power
Rate, using described power coefficient of rectifying deviation keThe effective power of electrostatic field cleaner unit is modified according to specified dust removing effects, can
See, when spark rate n is less than or equal to spark rate preset value ndWhen, according to described inverse corona voltage Vr1With described power coefficient of rectifying deviation ke
The dedusting command voltage calculating meets discharging standards.
If the second dedusting command voltage module is used for spark rate is more than spark rate preset value, dedusting command voltage is default finger
Make magnitude of voltage, and this preset instructions magnitude of voltage is exported to electrostatic precipitator.
When spark rate increases to spark rate preset value, control dedusting command voltage Vset1The upper limit be preset instructions voltage
Value Vst1, make the spark rate in electrostatic field not too large, it is to avoid the excessive consumption of the energy of electrostatic precipitator is in a large amount of sparks
On.It can be seen that present invention achieves the control effect of low spark rate, by energy to greatest extent in order to dedusting, thus having saved energy
Source.
Improvement further to technique scheme, described dedusting command voltage computing module includes effective voltameter and calculates list
Unit, command power computing unit, instruction active voltage computing unit, command voltage output unit.
Wherein said active voltage computing unit is used for the measurement voltage V of electrostatic precipitator1Deduct described inverse corona electricity
Pressure Vr1, using the difference obtaining as active voltage V '1Export to command power computing unit；
The computing formula of described active voltage is V '1=V1-Vr1, same to formula (4), that is, active voltage when blowing is detection electricity
Pressure and the difference of inverse corona voltage.
It is active voltage V ' that command power computing unit is used for effective power1, the measurement electric current A of electrostatic precipitator1And two
The correction factor k of secondary instrumentiIt is multiplied, and using the result being multiplied as effective power p1, by effective power p1With power coefficient of rectifying deviation
keProduct as command power p'1, and by described command power p'1Export to instruction active voltage computing unit；
The computing formula of effective power is p1=ki×V′1×A1, same to formula (5), wherein kiRepresent in i-th electrostatic precipitator
The correction factor of secondary meter used, the error in order to eliminate secondary meter in measurement process, between measured value and actual value.
The correction factor of each secondary meter is different, can record in advance.
Command power p'1=ke×p1, same to formula (6).The effective power of dedusting can be monitored by on-Line Monitor Device
Dust removing effects obtain, if dust removing effects are more than national standard, produce one by power coefficient of rectifying deviation PID module and are less than 1
Power coefficient of rectifying deviation keGo to revise effective power, after correction, obtain command power；If dust removing effects are less than national standard, pass through
Power coefficient of rectifying deviation PID module produces a power coefficient of rectifying deviation k more than 1eGo to revise effective power, also referred to after correction
Make power.
Instruction active voltage computing unit is used for calculating described command power p'1Measurement electric current A with electrostatic precipitator1's
Ratio, using this ratio as dedusting effective instruction voltage V "1Export to command voltage output unit.Specific formula for calculation isSame formula (7).
Command voltage output unit is used for calculating described dedusting effective instruction voltage V "1With described inverse corona voltage Vr1's
With using the result of summation as dedusting command voltage Vset1.Specific computing formula is Vset1=V "1+Vr1, same to formula (8).
Due in p'1Calculating process in, keFrom power coefficient of rectifying deviation PID module, and power coefficient of rectifying deviation PID module
The preset value m of fume amount in middle floss hole unit volumestBe according to specify dust removing effects set, so when spark rate n be less than etc.
In described spark rate preset value ndWhen, described dedusting command voltage Vset1Be according to specify dust removing effects be that discharging standards are asked
?.
The present invention controls dedusting command voltage according to the calculated spark rate of spark rate computing module so that electrostatic field is full
The low spark rate principle of foot；It is calculated inverse corona voltage using inverse corona voltage computing module, facilitate follow-up calculating；Power entangles
Parital coefficient PID module is worth to power coefficient of rectifying deviation k according to the preset value of fume amount in floss hole unit volume and detectione, make
Fume amount in the unit volume of its floss hole meets discharging standards.
When spark rate n is more than spark rate preset value ndWhen, described dedusting command voltage Vset1For preset instructions magnitude of voltage Vst1,
And preset instructions magnitude of voltage Vst1Not high, it is easy to rapping dust stratification except dizzy, in rapping, system is passed through to improve other electrostatic fields
The correction factor of secondary meter works in coordination with power coefficient of rectifying deviation keSystem entirety is ensured with the power increasing other 3 electrostatic fields
Dust removing effects.After rapping, correction factor recovers initial value.
In FIG, it is equipped with four electrostatic precipitator in converter dry dust removal process altogether, above-mentioned electrostatic field voltage controls
System all illustrates taking First electrostatic field cleaner unit as a example, the electrostatic field voltage control system of other electrostatic precipitator
Similar.In a particular application, the number of units that electrostatic precipitator is equipped with is arranged as required to, and is not limited to 4.Because every electrostatic removes
The spark rate of dirt device is possible to difference, and every electrostatic precipitator utilizes respective electrostatic field voltage control system to control respective electrostatic
Dedusting command voltage in, makes power reasonable distribution.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with basis
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the protection domain that claim is defined.
Claims (2)
1. a kind of electrostatic field voltage control method of electrostatic precipitator is it is characterised in that methods described is：
Calculate the spark rate in described electrostatic field, and compare the magnitude relationship of spark rate and spark rate preset value,
If spark rate is less than or equal to spark rate preset value, calculate the inverse corona voltage in described electrostatic field, and according to floss hole
In unit volume, the preset value of fume amount and detected value calculate the power that the effective power to electrostatic field cleaner unit is modified
Coefficient of rectifying deviation；Dedusting command voltage is calculated according to described inverse corona voltage and described power coefficient of rectifying deviation, and this dedusting is referred to
Make voltage output to electrostatic precipitator；
If spark rate is more than spark rate preset value, exporting to the dedusting command voltage of electrostatic precipitator is preset instructions magnitude of voltage；
Dedusting command voltage is calculated according to described inverse corona voltage and described power coefficient of rectifying deviation, concretely comprises the following steps：
The measurement voltage of electrostatic precipitator is deducted described inverse corona voltage, using the difference obtaining as active voltage；
The correction factor of active voltage, the measurement electric current of electrostatic precipitator and secondary meter is multiplied, and the result being multiplied is made
For effective power；Using the product of effective power and power coefficient of rectifying deviation as command power；
Calculate the ratio of described command power and the measurement electric current of electrostatic precipitator, and using this ratio as dedusting effective instruction electricity
Pressure；
Calculate the sum of described dedusting effective instruction voltage and described inverse corona voltage, the result of summation is instructed as described dedusting
Voltage.
2. a kind of electrostatic precipitator electrostatic field voltage control system it is characterised in that：Refer to including spark rate module, the first dedusting
Make voltage module and the second dedusting command voltage module；
Described spark rate module includes spark rate computing module and spark rate comparison module, described spark rate computing module by based on
Calculate the spark rate in described electrostatic field, spark rate comparison module is used for relatively described spark rate and the size of spark rate preset value and closes
System；
First dedusting command voltage module is used for calculating spark rate less than or equal to dedusting instruction electricity during spark rate preset value
Pressure；First dedusting command voltage computing module includes inverse corona voltage computing module, power coefficient of rectifying deviation PID module and instruction electricity
Pressure computing module；Wherein inverse corona voltage computing module is used for calculating the inverse corona voltage in electrostatic field；Power coefficient of rectifying deviation PID
Module calculates the Effective power to electrostatic field cleaner unit for the preset value according to fume amount in floss hole unit volume and detected value
The power coefficient of rectifying deviation that rate is modified；Command voltage computing module is used for according to described inverse corona voltage and the correction of described power
Coefficient calculates dedusting command voltage, and exports to electrostatic precipitator；
If the second dedusting command voltage module is used for spark rate is more than spark rate preset value, exports and refer to the dedusting of electrostatic precipitator
Voltage is made to be preset instructions magnitude of voltage；
Described dedusting command voltage computing module includes effective voltage computation unit, command power computing unit, instruction effectively electricity
Pressure computing unit, command voltage output unit；
Wherein said active voltage computing unit is used for for the measurement voltage of electrostatic precipitator deducting described inverse corona voltage, will
To difference export to command power computing unit as active voltage；
Command power computing unit is used for active voltage, the measurement electric current of electrostatic precipitator and the correction factor phase of secondary meter
Take advantage of, and using the result being multiplied as effective power, using the product of effective power and power coefficient of rectifying deviation as command power, and will
Described command power exports to instruction active voltage computing unit；
Instruction active voltage computing unit is used for calculating the ratio of described command power and the measurement electric current of electrostatic precipitator, should
Ratio is as dedusting effective instruction voltage output to command voltage output unit；
Command voltage output unit is used for calculating the sum of described dedusting effective instruction voltage and described inverse corona voltage, by summation
Result is as dedusting command voltage.
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| CN100484638C (en) * | 2006-04-20 | 2009-05-06 | 五邑大学 | Static dust collection system |
| JP4772813B2 (en) * | 2008-03-14 | 2011-09-14 | 首都高速道路株式会社 | Method and apparatus for controlling electrostatic precipitator |
| CA2772390C (en) * | 2011-04-05 | 2015-01-06 | Alstom Technology Ltd. | Method and system for discharging an electrostatic precipitator |
| CN103427681B (en) * | 2013-08-05 | 2016-08-24 | 江苏科技大学 | High-frequency high-voltage electrostatic dust removal power and control guard method thereof |
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| CN103691559B (en) * | 2013-12-06 | 2016-01-13 | 江苏科技大学 | Electrostatic precipitation high-frequency and high-voltage power supply fuzzy control method |
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