CN108187914A - A kind of dedusting power control method, device and power-supply device - Google Patents
A kind of dedusting power control method, device and power-supply device Download PDFInfo
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- CN108187914A CN108187914A CN201810045474.6A CN201810045474A CN108187914A CN 108187914 A CN108187914 A CN 108187914A CN 201810045474 A CN201810045474 A CN 201810045474A CN 108187914 A CN108187914 A CN 108187914A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
Abstract
The embodiment of the invention discloses a kind of dedusting power control method, device and power-supply device, the power-supply device includes：First rectifier, inverter, transformer, the second rectifier and controller；Three-phase alternating current is exported after the first rectifier, inverter, transformer and the second rectifier to loading, and controller output pwm signal controls the switching frequency of switching device in inverter.This method, including：Detect the voltage and current of the second rectifier out-put supply；Judge whether the voltage and current of out-put supply meets preset condition；If so, the pwm signal of adjustment controller output, to reduce the rate of pressure rise of out-put supply.When closing on road open circuit, by adjusting the pwm signal of controller output, change the switching frequency of switching device in inverter, to reduce the rate of pressure rise of out-put supply, slow down the rate of rise of out-put supply, and then it is excessively high on equipment influence to reduce output voltage under road open circuit.
Description
Technical field
The present invention relates to a kind of electrostatic precipitation technology field more particularly to dedusting power control method, device and power supplys to set
It is standby.
Background technology
Dedusting high-frequency high-voltage source device can mating all kinds of cleaners, provide working power for cleaner, extensively
Exhaust gas dust applied to numerous industries such as electric power, metallurgy, building materials, light industry, chemical industry is administered, and is a kind of high-effective dust-removing, protection ring
The important equipment in border.
However, the operating condition complexity of electric precipitator is various, when electric field stable operation, electric precipitator is in normal work
Condition, and as the dust on pole plate is accumulated, easily there is open fault, electric precipitator is in road open circuit.It is high under road open circuit
The output voltage of frequency power is excessively high, damages equipment.
Invention content
It in view of this, can an embodiment of the present invention provides a kind of dedusting power control method, device and power-supply device
Solve the problems, such as that the output voltage of high frequency electric source when electric precipitator is in road open circuit in the prior art is excessively high.Closing on open circuit work
Under the quasi- road open circuit of condition, the out-put supply of power-supply device is controlled, reduces the rate of rise to avoid high pressure to equipment
It influences.
A kind of dedusting power control method provided in an embodiment of the present invention, applied to power-supply device, the power-supply device
Including：First rectifier, inverter, transformer, the second rectifier and controller；The input terminal of first rectifier is described
The input terminal of power-supply device, the output terminal of first rectifier connect the input terminal of the inverter, the inverter it is defeated
Outlet connects the input terminal of the transformer, and the output terminal of the transformer connects second rectifier, second rectification
The output terminal connection electric precipitator of device, the controller are used for output pwm signal to control switching device in the inverter
Switching frequency；The method, including：
Detect the voltage and current of the second rectifier out-put supply；
Judge whether the voltage and current of the out-put supply meets preset condition；
If so, the pwm signal is adjusted, to reduce the rate of pressure rise of the out-put supply.
Optionally, whether the voltage and current for judging the out-put supply meets preset condition, specifically includes：
Judge the out-put supply voltage whether be more than predetermined voltage threshold and the out-put supply electric current whether
Less than predetermined current threshold；
If it is to be, it is determined that the voltage and current of the out-put supply meets the preset condition.
Optionally, the adjustment pwm signal, to reduce the rate of pressure rise of the out-put supply, specifically includes：
When in the boosting rectifier control stage, the pwm signal is adjusted, so that the rate of pressure rise of the out-put supply is first
Value；First value is less than second value, and the second value is the rate of pressure rise under nominal situation；
When controlling the stage in spark, the pwm signal is adjusted, to reduce the rate of pressure rise of rapid pressure.
Optionally, when the voltage and current of the out-put supply meets preset condition, the method further includes：
Monitor the spark time of origin of the electric precipitator；
When the time interval between the adjacent spark twice that monitoring obtains is less than preset time threshold, the PWM is adjusted
Signal, to increase the spark turn-off time.
Optionally, the predetermined voltage threshold is 60000 volts, and the predetermined current threshold is 100 milliamperes.
First value is 1/10th of the second value.
Optionally, the controller is additionally operable to perform the dedusting power control method.
A kind of dedusting power control provided in an embodiment of the present invention, applied to power-supply device, the power-supply device
Including：First rectifier, inverter, transformer, the second rectifier and controller；The input terminal of first rectifier is described
The input terminal of power-supply device, the output terminal of first rectifier connect the input terminal of the inverter, the inverter it is defeated
Outlet connects the input terminal of transformer, and the output terminal of the transformer connects second rectifier, second rectifier
Output terminal connects electric precipitator, and the controller is used for output pwm signal to control the switch of switching device in the inverter
Frequency；Described device, including：Detection module, judgment module and control module；
The detection module, for detecting the voltage and current of the second rectifier out-put supply；
Whether the judgment module, the voltage and current for judging the detection module detection meet preset condition；
The control module, for when the judging result of the judgment module is to be, the pwm signal being adjusted, with drop
The rate of pressure rise of the low out-put supply.
Optionally, the judgment module, specifically includes：First judging submodule, second judgment submodule and determining submodule
Block；
First judging submodule, for judging whether the voltage of the out-put supply is more than predetermined voltage threshold；
The second judgment submodule, for judging whether the electric current of the out-put supply is less than predetermined current threshold；
The determination sub-module, for when first judging submodule and the second judgment submodule are to be,
Determine that the voltage and current of the out-put supply meets the preset condition.
Optionally, the control module, specifically includes：First control submodule and the second control submodule；
First control submodule, for when in the boosting rectifier control stage, adjusting the pwm signal, so that described
The rate of pressure rise of out-put supply is the first value；First value is less than second value, and the second value is the boosting under nominal situation
Rate；
Second control submodule, it is fast to reduce for when controlling the stage in spark, adjusting the pwm signal
The rate of pressure rise of speed boosting.
Optionally, the control module, specifically further includes：Monitor submodule and third judging submodule
The monitoring submodule, when the spark for when controlling the stage in spark, monitoring the electric precipitator occurs
Between；
The third judging submodule, for judging between the adjacent spark twice that monitors of monitoring submodule
Whether time interval is less than preset time threshold；
Second control submodule is additionally operable to the judging result when the third judging submodule when being, to adjust institute
Pwm signal is stated, to increase the spark turn-off time.
Optionally, the predetermined voltage threshold is 60000 volts, and the predetermined current threshold is 100 milliamperes.
Optionally, first value is 1/10th of the second value.
The embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer program, the meter
The power control method provided such as above-described embodiment is provided when calculation machine program is executed by processor.
The embodiment of the present invention additionally provides a kind of power-supply device, including：It is first rectifier, inverter, transformer, second whole
Flow device and controller；
The input terminal of first rectifier is the input terminal of power-supply device, and the output terminal of first rectifier connects institute
State the input terminal of inverter；
The output terminal of the inverter connects the input terminal of the transformer；
The output terminal of the transformer connects the input terminal of second rectifier；
The output terminal of second rectifier is the output terminal of the power-supply device, for connecting electric precipitation at work
Device；
The input terminal of the controller connects the output terminal of second rectifier, the output terminal connection institute of the controller
State inverter；
The controller is used for output pwm signal to control the switching frequency of switching device in the inverter, the PWM
Signal is obtained according to the power control method that such as above-described embodiment provides.
Compared with prior art, the present invention has at least the following advantages：
In embodiments of the present invention, known by the voltage and current that the second rectifier is exported to the out-put supply of electric precipitator
The quasi- road open circuit for closing on open circuit of other electric precipitator, judges whether the voltage and current of out-put supply meets preset condition.When
When the voltage and current of out-put supply meets preset condition, it is believed that electric precipitator, which is in, closes on open-circuit condition.It is at this point, of the invention
The method for implementing to provide, by adjusting the pwm signal of inverter output, changes switching device in inverter under quasi- road open circuit
Switching frequency, to reduce the rate of pressure rise of out-put supply, slow down the rate of rise of out-put supply, and then reduce road open circuit
Lower output voltage is excessively high to influence equipment.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or it will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the application scenarios schematic diagram of the embodiment of the present invention；
Fig. 2 is a kind of flow diagram of dedusting power control method provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of another dedusting power control method provided in an embodiment of the present invention；
Fig. 4 is a kind of structure diagram of dedusting power control provided in an embodiment of the present invention；
Fig. 5 is the structure diagram of another dedusting power control provided in an embodiment of the present invention；
Fig. 6 is a kind of structure diagram of power-supply device provided in an embodiment of the present invention.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only this
Invention part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
All other embodiments obtained under the premise of creative work are not made, shall fall within the protection scope of the present invention.
For convenience of explanation and understand, introduce the concrete application scene of the embodiment of the present invention first below.
Dedusting power control method and device provided in an embodiment of the present invention, applied to power-supply device, the power-supply device
As shown in Figure 1, including：First rectifier 10, inverter 20, transformer 30, the second rectifier 40 and controller 50.
The input terminal of first rectifier 10 is the input terminal of power-supply device, and the output terminal of the first rectifier 10 connects inverter
20 input terminal；The input terminal of the output terminal connection transformer 30 of inverter 20；The output terminal of transformer 30 connects the second rectification
The input terminal of device 40；The output terminal connection electric precipitator ESP of second rectifier 40；Controller 50 is modulated for output pulse width
The switching frequency of switching device, whole with control second in (Pulse Width Modulation, PWM) signal control inverter 20
Flow the out-put supply of device 40.At work, it is defeated for DC power supply through industrial frequency rectifying after three-phase alternating current inputs the first rectifier 10
Go out to inverter 20, transformer 30 is transported to after inversion.Output is whole through second to the second rectifier 40 after the boosting of transformer 30
It flows 40 rectification of device and, to electric precipitator ESP, working power is provided for electric precipitator ESP for output after high-frequency direct-current power supply.
In practical applications, inverter 20 is specifically as follows insulated gate bipolar transistor (Insulated Gate
Bipolar Transistor, IGBT) full-bridge connection in series-parallel hybrid resonant inverter, it is protected including IGBT full-bridges and residual current acting
Protect device (Residual Current Device, RCD) circuit.50 output pwm signal of controller controls IGBT to IGBT full-bridges
The switching frequency of switching device in full-bridge.Transformer 30 can be high frequency transformer, and the first rectifier 10 can be industrial frequency rectifying
Device, the second rectifier 40 can be hf rectifier.The embodiment of the present invention to the first rectifier 10, inverter 20, transformer 30,
The internal structure of second rectifier 40 and controller 50 is not specifically limited, and those skilled in the art can have according to actual needs
Body equipment, will not enumerate here.
The factors such as the variation by dust concentration in electric field are influenced, and the working condition of electric precipitator is changeable.Due to power supply
Equipment is constant-current supply, and when there is open circuit situation, the output voltage that can cause to export to electric precipitator is excessively high, endangers equipment peace
Entirely.For this purpose, the present invention provides a kind of dedusting power control method, device and power-supply device, approach and open in electric precipitator
During line state (following for convenience of explanation that this stage is known as quasi- road open circuit), the boosting speed of power-supply device out-put supply is reduced
Rate slows down the rate of rise of out-put supply, so as to avoid the excessively high harm to equipment safety of output voltage under open-circuit condition.
Based on above-mentioned thought, in order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to
Attached drawing is described in detail the specific embodiment of the present invention.
Referring to Fig. 2, which is a kind of flow diagram of dedusting power control method provided in an embodiment of the present invention.
Dedusting power control method provided in an embodiment of the present invention, applied to power-supply device as shown in Figure 1, this method
Specifically comprise the following steps S201-S203.In some possible realization methods, which can be by scheming
Controller shown in 1 performs, and can also be realized by other hardware devices, specifically will not enumerate.It is carried out with reference to Fig. 1 detailed
It describes in detail bright.
S201：Detect the voltage and current of the second rectifier out-put supply.
Second rectifier out-put supply, that is, power-supply device is exported to the power supply of electric precipitator.In practical applications, this field
Technical staff can be according to actual conditions, the mode of the voltage and current of specific setting detection out-put supply, the embodiment of the present invention
This is not specifically limited.For example, can secondary adopt be carried out to the voltage and current of out-put supply with 250 milliseconds of sampling period
Sample, to detect the voltage and current of the second rectifier out-put supply.
S202：Judge whether the voltage and current of out-put supply meets preset condition；If so, perform step S203.
In embodiments of the present invention, it since power-supply device can be considered as constant-current supply, exports to the voltage of electric precipitator
It is influenced with electric current by the working condition of electric precipitator, whether meets preset condition using the voltage and current of out-put supply, you can
Judge the working condition of electric precipitator whether in quasi- road open circuit.When the voltage and current of out-put supply meets preset condition
When, illustrate that electric precipitator runs on quasi- road open circuit, close on road open circuit.When electric precipitator is in quasi- road open circuit, take
Special control method, to avoid influence of the open circuit to equipment.
In the embodiment of the present invention in some possible realization methods, step S202 specifically may include steps of：Judge
Whether the voltage of out-put supply is more than predetermined voltage threshold and whether the electric current of out-put supply is less than predetermined current threshold.If sentence
Disconnected result is to be, it is determined that the voltage and current of out-put supply meets preset condition.
In practical applications, those skilled in the art can be according to actual conditions, the specific predetermined voltage threshold and pre- of setting
If current threshold, the embodiment of the present invention is not specifically limited this.As an example, predetermined voltage threshold can be 60000
Volt, predetermined current threshold can be 100 milliamperes.That is, when the voltage of out-put supply is more than 60,000 volts, electric current is less than 100mA
When, the voltage and current of out-put supply meets preset condition, performs following steps S203.
S203：Pwm signal is adjusted, to reduce the rate of pressure rise of out-put supply.
It is understood that controller output pwm signal controls the on off state and frequency of switching device in inverter, it can
To control the rate of pressure rise of inverter out-put supply, controlled so as to the out-put supply to the second rectifier.The present invention
In embodiment, when electric precipitator is in quasi- road open circuit, by adjusting pwm signal (such as reduce PWM signal frequency it is increased
Rate of change), the rate of pressure rise of out-put supply is reduced, slows down the speed of boosting, the time required to increasing boosting, reduces high pressure pair and set
Standby damage.
It is understood that when the electric current of out-put supply is more than 100mA, quasi- road open circuit is exited, is continued with normal work
The control strategy output pwm signal of condition with control output to electric precipitator power supply.
In embodiments of the present invention, closing on for electric precipitator is identified by the voltage and current of the second rectifier out-put supply
The quasi- road open circuit of open circuit, judges whether the voltage and current of out-put supply meets preset condition.When out-put supply voltage and
When electric current meets preset condition, it is believed that electric precipitator, which is in, closes on open-circuit condition.At this point, the method that the present invention implements to provide exists
It closes under the quasi- road open circuit of open circuit, by adjusting the pwm signal of controller output, changes the switch of switching device in inverter
Frequency to reduce the rate of pressure rise of out-put supply, slows down the rate of rise of out-put supply, and then reduces and exported under road open circuit
Overtension influences equipment.
Referring to Fig. 3, which is the flow diagram of another dedusting power control method provided in an embodiment of the present invention.
Compared to Fig. 2, this figure provides a kind of more specifical dedusting power control methods.
In embodiments of the present invention, step S203 specifically may include steps of S2031-S2032：
S2031：When in the boosting rectifier control stage, pwm signal is adjusted, so that the rate of pressure rise of out-put supply is first
Value.
Wherein, the first value is less than second value, and second value is the rate of pressure rise under nominal situation.
It should be noted that during control is carried out to power-supply device as electric precipitator power supply, according to electric precipitator
Operating status and control need, three phases can be included to the control of power supply：The boosting rectifier control stage, spark control the stage with
And steady control stage, the control strategy in different control stages are different.Wherein, the boosting rectifier control stage, by adjusting controller
The pwm signal of output makes out-put supply boost to the voltage needed for electric precipitator.
In embodiments of the present invention, in the boosting rectifier control stage, if electric precipitator runs on quasi- road open circuit, by adjusting
Pwm signal makes the rate of pressure rise of out-put supply fall to the first value, the rate of pressure rise (i.e. second being less than under nominal situation
Value), to reduce damage of the high pressure to equipment.
In practical applications, it can boost according to 1/10th of rate of pressure rise under nominal situation, i.e., the first value is
/ 10th of second value.Those skilled in the art can also specifically set the rate of pressure rise after declining according to actual needs, this
In will not enumerate.
S2032：When controlling the stage in spark, pwm signal is adjusted, to reduce the rate of pressure rise of rapid pressure.
When spark occurs in electric precipitator, the stage is controlled into spark, avoids influence of the spark to equipment.Spark controls rank
Section includes spark shutdown, at a slow speed rapid pressure, boosting and stable operation.When detecting flashing situation, fire is carried out first
Flower shutdown avoids the unexpected amplification of electric current under spark state from causing switching device both end voltage in inverter excessive；Then, it carries out fast
Speed boosting, such as the 80% of normal working voltage is boosted to, restore the normal operating conditions of electric precipitator as early as possible.Then, through slow
Speed boosting makes electric precipitator enter steady operational status, carries out stable operation control, keeps the stable state of electric precipitator.
In embodiments of the present invention, if spark control the stage when, electric precipitator is in quasi- road open circuit, then by adjusting
Pwm signal declines the rate of pressure rise of rapid pressure, increases the time of rapid pressure, reduces the rate of rise after spark, protects
Equipment safety is protected.
In the embodiment of the present invention in some possible realization methods, in order to reduce the number of spark, spark is avoided to equipment
The influence of safety, when the judging result of step S202 is when being, also executes the following steps：
Monitor the spark time of origin of electric precipitator；It is preset when the time interval of adjacent spark twice that monitoring obtains is less than
During time threshold, pwm signal is adjusted, to increase the spark turn-off time.
If flashing, the air of electric field is ionized in electric precipitator, and electric current amplifies suddenly.Therefore, it is possible at some
In the case of, spark can be specifically monitored by the volume situation of change of electric current, monitor the time of origin of spark.
In practical application, the mode that monitoring spark occurs can also be specifically set according to actual conditions, the embodiment of the present invention does not make this
It limits.
It is understood that when the time interval of adjacent spark twice is less than preset time threshold, the frequency of spark generation
Rate is higher, and the normal operation and safety of equipment can be impacted.At this point, increase the spark turn-off time by adjusting pwm signal,
To increase the recovery time of electric field after spark occurs, spark number is reduced, ensures the stabilization of Electric Field in ESP, increases equipment
Safety.
Based on a kind of dedusting power control method that above-described embodiment provides, the embodiment of the present invention additionally provides one kind and removes
Dirt power control.
Referring to Fig. 4, which is a kind of structure diagram of dedusting power control provided in an embodiment of the present invention.
A kind of dedusting power control provided in an embodiment of the present invention, applied to power-supply device shown in FIG. 1, the dress
It puts, including：Detection module 100, judgment module 200 and control module 300；
Detection module 100, for detecting the voltage and current of the second rectifier out-put supply；
Judgment module 200, for judging whether the voltage and current that detection module 100 detects meets preset condition；
In the embodiment of the present invention in some possible realization methods, as shown in the figure, judgment module 200, can specifically include：
First judging submodule 201, second judgment submodule 202 and determination sub-module 203；
First judging submodule 201, for judging whether the voltage of out-put supply is more than predetermined voltage threshold；
Second judgment submodule 202, for judging whether the electric current of out-put supply is less than predetermined current threshold；
Optionally, predetermined voltage threshold is 60000 volts, and predetermined current threshold is 100 milliamperes.
Determination sub-module 203, for when the first judging submodule 201 and second judgment submodule 202 are to be, determining
The voltage and current of out-put supply meets preset condition.
Control module 300, for when the judging result of judgment module 200 is when being, adjustment pwm signal is exported to reduce
The rate of pressure rise of power supply.
In the embodiment of the present invention in some possible realization methods, as shown in figure 5, control module, can specifically include：The
One control submodule 301 and the second control submodule 302；
First control submodule 301, for when in the boosting rectifier control stage, adjusting pwm signal, so that out-put supply
Rate of pressure rise is the first value；First value is less than second value, and second value is the rate of pressure rise under nominal situation；
Second control submodule 302, for when controlling the stage in spark, pwm signal being adjusted, to reduce rapid pressure
Rate of pressure rise.
Optionally, the first value is 1/10th of second value.
In the embodiment of the present invention in some possible realization methods, control module can also specifically include：Monitor submodule
With third judging submodule；
Submodule is monitored, for when controlling the stage in spark, monitoring the spark time of origin of electric precipitator；
Third judging submodule, for judging the time interval between the adjacent spark twice that monitors of monitoring submodule
Whether preset time threshold is less than；
Second control submodule 302 is additionally operable to the judging result when third judging submodule when being, to adjust pwm signal,
To increase the spark turn-off time.
In embodiments of the present invention, closing on for electric precipitator is identified by the voltage and current of the second rectifier out-put supply
The quasi- road open circuit of open circuit, judges whether the voltage and current of out-put supply meets preset condition.When out-put supply voltage and
When electric current meets preset condition, it is believed that electric precipitator, which is in, closes on open-circuit condition.At this point, the method that the present invention implements to provide exists
It closes under the quasi- road open circuit of open circuit, by adjusting the pwm signal of controller output, changes the switch of switching device in inverter
Frequency to reduce the rate of pressure rise of out-put supply, slows down the rate of rise of out-put supply, and then reduces and exported under road open circuit
Overtension influences equipment.
The dedusting power control method and device, the embodiment of the present invention provided based on above-described embodiment additionally provides one kind
Computer readable storage medium is stored thereon with computer program, is realized when which is executed by processor as above-mentioned
The dedusting power control method that embodiment provides.
The dedusting power control method and device, the embodiment of the present invention provided based on above-described embodiment additionally provides one kind
Power-supply device.As shown in fig. 6, the power-supply device, including：First rectifier 601, inverter 602, transformer 603, the second rectification
Device 604 and controller 605；
The input terminal of first rectifier 601 is the input terminal of power-supply device, and the output terminal of the first rectifier 601 connects inversion
The input terminal of device 602；The input terminal of the output terminal connection transformer 603 of inverter 602；The output terminal connection the of transformer 603
The input terminal of two rectifiers 604；The output terminal of second rectifier 604 is the output terminal of power-supply device, for connecting at work
Electric precipitator ESP；The input terminal of controller 605 connects the output terminal of the second rectifier 604, the output terminal connection of controller 605
Inverter 602；For output pwm signal to control the switching frequency of switching device in inverter 602, which believes controller 605
The dedusting that number basis such as above-described embodiment provides is obtained with power control method.
It should be noted that each embodiment is described by the way of progressive in this specification, each embodiment emphasis is said
Bright is all difference from other examples, and just to refer each other for identical similar portion between each embodiment.For reality
For applying device disclosed in example, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, it is related
Part is referring to method part illustration.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
It can directly be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention.Though
So the present invention is disclosed above with preferred embodiment, however is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention
Technical solution makes many possible changes and modifications or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every without departing from
The content of technical solution of the present invention, it is any simple modification made to the above embodiment of technical spirit according to the present invention, equivalent
Variation and modification, still fall within technical solution of the present invention protection in the range of.
Claims (10)
1. a kind of dedusting power control method, which is characterized in that applied to power-supply device, the power-supply device includes：First
Rectifier, inverter, transformer, the second rectifier and controller；The input terminal of first rectifier is the power-supply device
Input terminal, the output terminal of first rectifier connects the input terminal of the inverter, the output terminal connection of the inverter
The input terminal of the transformer, the output terminal of the transformer connect second rectifier, the output of second rectifier
End connection electric precipitator, the controller are used for output pwm signal to control the switching frequency of switching device in the inverter；
The method, including：
Detect the voltage and current of the second rectifier out-put supply；
Judge whether the voltage and current of the out-put supply meets preset condition；
If so, the pwm signal is adjusted, to reduce the rate of pressure rise of the out-put supply.
2. according to the method described in claim 1, it is characterized in that, the voltage and current for judging the out-put supply whether
Meet preset condition, specifically include：
Judge whether the voltage of the out-put supply is more than the electric current of predetermined voltage threshold and the out-put supply and whether is less than
Predetermined current threshold；
If it is to be, it is determined that the voltage and current of the out-put supply meets the preset condition.
3. according to the method described in claim 1, it is characterized in that, the adjustment pwm signal, electric to reduce the output
The rate of pressure rise in source, specifically includes：
When in the boosting rectifier control stage, the pwm signal is adjusted, so that the rate of pressure rise of the out-put supply is the first value；
First value is less than second value, and the second value is the rate of pressure rise under nominal situation；
When controlling the stage in spark, the pwm signal is adjusted, to reduce the rate of pressure rise of rapid pressure.
4. according to the method described in claim 3, it is characterized in that, when the voltage and current of the out-put supply meets default item
During part, the method further includes：
When controlling the stage in spark, the spark time of origin of the electric precipitator is monitored；
When the time interval between the adjacent spark twice that monitoring obtains is less than preset time threshold, the pwm signal is adjusted,
To increase the spark turn-off time.
5. according to the method described in claim 2, it is characterized in that, the predetermined voltage threshold be 60000 volts, the default electricity
It is 100 milliamperes to flow threshold value.
6. according to the method described in claim 3, it is characterized in that, first value is 1/10th of the second value.
7. according to the method described in claim 1-6 any one, which is characterized in that the controller is additionally operable to described in execution
Dedusting power control method.
8. a kind of dedusting power control, which is characterized in that applied to power-supply device, the power-supply device includes：First
Rectifier, inverter, transformer, the second rectifier and controller；The input terminal of first rectifier is the power-supply device
Input terminal, the output terminal of first rectifier connects the input terminal of the inverter, the output terminal connection of the inverter
The input terminal of transformer, the output terminal of the transformer connect second rectifier, and the output terminal of second rectifier connects
Electric precipitator is connect, the controller is used for output pwm signal to control the switching frequency of switching device in the inverter；It is described
Device, including：Detection module, judgment module and control module；
The detection module, for detecting the voltage and current of the second rectifier out-put supply；
Whether the judgment module, the voltage and current for judging the detection module detection meet preset condition；
The control module, for when the judging result of the judgment module is when being, adjusts the pwm signal, to reduce
State the rate of pressure rise of out-put supply.
9. a kind of computer readable storage medium, which is characterized in that be stored thereon with computer program, which is located
Reason device realizes dedusting power control method as claimed in any one of claims 1 to 6 when performing.
10. a kind of power-supply device, which is characterized in that including：First rectifier, inverter, transformer, the second rectifier and control
Device；
The input terminal of first rectifier is the input terminal of power-supply device, and the output terminal connection of first rectifier is described inverse
Become the input terminal of device；
The output terminal of the inverter connects the input terminal of the transformer；
The output terminal of the transformer connects the input terminal of second rectifier；
The output terminal of second rectifier is the output terminal of the power-supply device, for connecting electric precipitator at work；
The input terminal of the controller connects the output terminal of second rectifier, and the output terminal connection of the controller is described inverse
Become device；
The controller is used for output pwm signal to control the switching frequency of switching device in the inverter, the pwm signal
It is obtained according to dedusting as claimed in any one of claims 1 to 6 with power control method.
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| CN201810045474.6A CN108187914B (en) | 2018-01-17 | 2018-01-17 | Power supply control method and device for dust removal and power supply equipment |
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| WO2021189892A1 (en) * | 2020-03-25 | 2021-09-30 | 珠海格力电器股份有限公司 | Power supply control circuit and method, storage medium, ion generator and purifier |
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