CN114870996B - Flashover frequency control method, device, equipment and medium for electric precipitation high-voltage power supply - Google Patents
Flashover frequency control method, device, equipment and medium for electric precipitation high-voltage power supply Download PDFInfo
- Publication number
- CN114870996B CN114870996B CN202210381109.9A CN202210381109A CN114870996B CN 114870996 B CN114870996 B CN 114870996B CN 202210381109 A CN202210381109 A CN 202210381109A CN 114870996 B CN114870996 B CN 114870996B
- Authority
- CN
- China
- Prior art keywords
- flashover
- power supply
- frequency
- voltage
- frequency power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000001556 precipitation Methods 0.000 title abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 39
- 238000004590 computer program Methods 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 4
- 230000005684 electric field Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a flashover frequency control method, a flashover frequency control device, flashover frequency control equipment and a flashover frequency control medium for an electric precipitation high-voltage power supply, wherein the flashover frequency control method comprises the following steps of: acquiring secondary voltage of the high-frequency power supply, and determining whether the high-frequency power supply is flashover or not according to the secondary voltage; if the high-frequency power supply is in flashover, determining the current flashover frequency, and determining characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, wherein the characteristic parameters comprise the total time of single flashover and the preset flashover frequency; and controlling the high-frequency power supply to flash again according to the characteristic parameters. By the method, the flashover frequency of the high-frequency power supply can be accurately controlled within a preset flashover frequency range, so that the flashover frequency is controlled within a reasonable range, the dust removal efficiency is ensured, and meanwhile, unnecessary electric energy loss can be saved.
Description
Technical Field
The invention relates to the technical field of electric precipitation, in particular to a flashover frequency control method, a flashover frequency control device, flashover frequency control equipment and flashover frequency control medium for an electric precipitation high-voltage power supply.
Background
The high-frequency power supply dust remover is a power supply for outputting direct current high voltage, has the advantages of high dust removal efficiency, large treatment smoke amount, stable operation, simple maintenance and the like in the dust removal field, and is widely applied to industrial sites such as cement factories, power plants and the like. When the high-frequency power supply dust remover removes dust, the output voltage reaches a critical point, and the cathode and anode plates in an electric field are broken down, and the phenomenon of huge discharge sound and spark is accompanied, which is called flashover.
In the dust removal process, the flashover frequency is too low, so that dust removal is not facilitated, the electric field strength is weakened due to the fact that the flashover frequency is too high, dust removal is also not facilitated, and therefore the flashover frequency needs to be controlled within a reasonable range. According to research, the prior art lacks an accurate and effective flashover frequency control method.
Disclosure of Invention
The invention aims to solve at least one technical problem by providing a flashover frequency control method, a flashover frequency control device, flashover frequency control equipment and flashover frequency control medium for an electric precipitation high-voltage power supply.
In a first aspect, the present invention solves the above technical problems by providing the following technical solutions: a flashover frequency control method of an electric dust removal high-voltage power supply, comprising the following steps:
acquiring secondary voltage of the high-frequency power supply, and determining whether the high-frequency power supply is flashover or not according to the secondary voltage;
if the high-frequency power supply is in flashover, determining the current flashover frequency, and determining characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, wherein the characteristic parameters comprise the total time of single flashover and the preset flashover frequency;
and controlling the high-frequency power supply to flash again according to the characteristic parameters.
The beneficial effects of the invention are as follows: in the scheme of the application, whether the high-frequency power supply is in flashover or not is determined according to the secondary voltage of the high-frequency power supply, if the high-frequency power supply is in flashover, the characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency are determined according to the preset flashover frequency and the current flashover frequency, and the flashover of the high-frequency power supply is controlled according to the characteristic parameters.
On the basis of the technical scheme, the invention can be improved as follows.
Further, according to the characteristic parameters, controlling the high-frequency power supply to flash again comprises:
adopting a rapid boosting mode to adjust the secondary voltage to the first voltage;
adopting a slow boosting mode to adjust the first voltage to the flashover voltage of the high-frequency power supply;
when the secondary voltage is the flashover voltage, the high-frequency power supply is controlled to generate flashover again according to the total time of the single flashover and the preset flashover frequency.
The adoption of the further scheme has the beneficial effects that the secondary voltage of the high-frequency power supply is adjusted to the flashover voltage of the high-frequency power supply in a sectional mode, so that the secondary voltage of the high-frequency power supply can be ensured to quickly recover to a higher level after flashover occurs and then slowly approach the flashover voltage, and the stability of the power supply and an electric field is ensured.
Further, the characteristic parameters further include a fast boost time, a fast boost step length, a slow boost time, and a slow boost step length, and the adjusting the secondary voltage to the first voltage by adopting the fast boost mode includes:
adjusting the secondary voltage to the first voltage according to the rapid boosting time and the rapid boosting step length;
the above-mentioned adoption slow boost mode, adjust the flashover voltage of first voltage to high frequency power supply includes:
and adjusting the first voltage to the flashover voltage according to the slow boost time and the slow boost step length.
The boosting process of each stage is controlled according to the boosting time and the boosting step length corresponding to different stages, so that the boosting control of each stage can be more accurate.
Further, the method comprises the following steps:
when the high-frequency power supply is in flashover, recording the current flashover voltage, the current flashover current and power supply operation parameters of the high-frequency power supply, wherein the power supply operation parameters comprise at least one of primary voltage, primary current, secondary voltage, secondary current, power supply PWM pulse width, power supply PWM frequency and flashover frequency.
The adoption of the further scheme has the beneficial effects that the related information of the high-frequency power supply when flashover occurs each time is recorded, including but not limited to the current flashover voltage, the current flashover current and the power supply operation parameters, so that the follow-up inquiry or the treatment according to the information can be facilitated.
Further, the method comprises the following steps:
when the high-frequency power supply is in flashover, the secondary voltage is adjusted to the set voltage.
The adoption of the further scheme has the beneficial effects that when the high-frequency power supply is in flashover, the secondary voltage is adjusted to the set voltage, so that the damage to the high-frequency power supply caused by flashover can be avoided.
Further, the above characteristic parameters further include PWM pause time, and the method further includes:
when the high-frequency power supply is in flashover, the PWM waves corresponding to the high-frequency power supply are suspended according to the PWM suspension time.
The further scheme has the beneficial effects that when the high-frequency power supply is in flashover, the PWM waves corresponding to the high-frequency power supply are suspended according to the PWM suspension time, so that flashover spark extinction and electric field medium recovery can be facilitated.
Further, the PWM pause time is 50ms.
The further scheme has the beneficial effects that experiments prove that when the PWM pause time is 50ms, the extinction of flashover spark and the recovery of electric field medium can be more facilitated.
In a second aspect, the present invention further provides a flashover frequency control device for an electric dust removing high voltage power supply, for solving the above technical problems, where the device includes:
the flashover judging module is used for obtaining the secondary voltage of the high-frequency power supply and determining whether the high-frequency power supply flashover occurs according to the secondary voltage;
the characteristic parameter determining module is used for determining the current flashover frequency when the high-frequency power supply is in flashover, and determining the characteristic parameter of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, wherein the characteristic parameter comprises the total time of single flashover and the preset flashover frequency;
and the flashover control module is used for controlling the high-frequency power supply to generate flashover again according to the characteristic parameters.
In a third aspect, the present invention further provides an electronic device for solving the above technical problem, where the electronic device includes a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and when the processor executes the computer program, the processor implements a flashover frequency control method of an electric dust removing high voltage power supply of the present application.
In a fourth aspect, the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program is executed by a processor to implement a flashover frequency control method of an electric dust removing high voltage power supply according to the present application.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments of the present invention will be briefly described below.
Fig. 1 is a schematic flow chart of a flashover frequency control method of an electric dust removing high-voltage power supply according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a high-frequency power data acquisition device according to an embodiment of the present invention;
fig. 3 is a flow chart of a flashover frequency control method of another electric dust removing high voltage power supply according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a flashover frequency control device of an electric dust removing high-voltage power supply according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The principles and features of the present invention are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the invention.
The following describes the technical scheme of the present invention and how the technical scheme of the present invention solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
The scheme provided by the embodiment of the invention can be applied to any application scene requiring to control the flashover frequency of the electric dust removal high-voltage power supply. The embodiment of the present invention provides a possible implementation manner, as shown in fig. 1, and provides a flowchart of a flashover frequency control method of an electric dust removal high voltage power supply, where the scheme may be executed by a controller corresponding to the electric dust removal high voltage power supply, and for convenience of description, the method provided by the embodiment of the present invention will be described below by taking the controller as an execution body, where the flowchart shown in fig. 1 may include the following steps:
step S110, obtaining the secondary voltage of the high-frequency power supply, and determining whether the high-frequency power supply is flashover or not according to the secondary voltage;
step S120, if the high-frequency power supply is in flashover, determining the current flashover frequency, and determining characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, wherein the characteristic parameters comprise the total time of single flashover and the preset flashover frequency;
and step S130, controlling the high-frequency power supply to flash again according to the characteristic parameters.
According to the method, whether the high-frequency power supply is in flashover or not is determined according to the secondary voltage of the high-frequency power supply, if the high-frequency power supply is in flashover, the characteristic parameters of the high-frequency power supply are determined according to the preset flashover frequency and the current flashover frequency when the current flashover frequency is the preset flashover frequency, and the flashover of the high-frequency power supply is controlled according to the characteristic parameters.
The scheme of the present invention is further described below with reference to the following specific embodiments, in which the flashover frequency control method of the electric dust removing high voltage power supply may include the following steps:
step S110, obtaining the secondary voltage of the high-frequency power supply, and determining whether the high-frequency power supply is flashover or not according to the secondary voltage;
in the working process of the electric dust removal high-voltage power supply, the secondary voltage of the high-frequency power supply is obtained, meanwhile, the voltage of the input end of the booster in the electric dust removal high-voltage power supply can be obtained, and when the secondary voltage is less than one third of the primary voltage, the high-frequency power supply is judged to have flashover.
Step S120, if the high-frequency power supply is in flashover, determining a current flashover frequency, and determining characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, wherein the characteristic parameters comprise the total time of single flashover and the preset flashover frequency.
When the high-frequency power supply is in flashover, determining the current flashover frequency, namely the flashover frequency corresponding to the flashover. The preset flashover frequency is a flashover frequency which is determined based on experiments in advance, and in the preset flashover frequency range, dust removal can be facilitated when the high-frequency power supply is in flashover, and the dust removal effect is good.
In order to control the flashover frequency of the high-frequency power supply, when the flashover occurs next time, in a preset flashover frequency range, characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency can be determined, and corresponding characteristics of the high-frequency power supply when flashover occurs under the preset flashover frequency can be reflected through the characteristic parameters.
Wherein, the preset flashover frequency can be 12 times or 13 times in 1 minute.
In an alternative scheme of the application, when the high-frequency power supply is in flashover, recording the current flashover voltage, the current flashover current and the power supply operation parameters of the high-frequency power supply, wherein the power supply operation parameters comprise at least one of primary voltage, primary current, secondary voltage, secondary current, power supply PWM pulse width, power supply PWM frequency and flashover frequency.
And each time flashover occurs, the current flashover voltage, the current flashover current and the power supply operation parameters of the high-frequency power supply are recorded once, and the current flashover voltage, the current flashover current and the power supply operation parameters are stored in a log form, so that the subsequent calling is facilitated.
When the high-frequency power supply is in flashover, the secondary voltage is adjusted to the set voltage.
When the high-frequency power supply is in flashover, the secondary voltage is adjusted to the set voltage, so that damage to the high-frequency power supply due to flashover can be avoided. The set voltage is preset and is a voltage which does not damage the high-frequency power supply.
In an alternative aspect of the present invention, the above characteristic parameter further includes a PWM pause time, and the method further includes:
when the high-frequency power supply is in flashover, the PWM waves corresponding to the high-frequency power supply are suspended according to the PWM suspension time.
When the high-frequency power supply is in flashover, the PWM wave corresponding to the high-frequency power supply is paused according to the PWM pause time, so that the flashover spark is extinguished and the electric field medium is recovered, and the PWM wave is recovered after the pause of the PWM pause time.
Optionally, the PWM pause time is 50ms, which is found by experiments to be more favorable for extinguishing the flashover spark and recovering the electric field medium when the PWM pause time is 50ms.
And step S130, controlling the high-frequency power supply to flash again according to the characteristic parameters.
Wherein, the control of the high-frequency power supply to flash again according to the characteristic parameter means that the high-frequency power supply is controlled to flash again according to the preset flash frequency and the total time of single flash, the total time of single flash means the total time of one flash, for example, 13 times of flash occurs when one flash occurs, and the total time of single flash is 13 times of corresponding total time.
In an alternative scheme of the present application, controlling the high-frequency power supply to flash again according to the characteristic parameters includes:
adopting a rapid boosting mode to adjust the secondary voltage to the first voltage;
adopting a slow boosting mode to adjust the first voltage to the flashover voltage of the high-frequency power supply;
when the secondary voltage is the flashover voltage, the high-frequency power supply is controlled to generate flashover again according to the total time of the single flashover and the preset flashover frequency.
In the process of controlling the high-frequency power supply to flash again, a rapid boosting mode is adopted firstly, the secondary voltage is adjusted to the first voltage, the power supply voltage is enabled to rapidly recover to a higher level after the flashover, and the stability of the power supply and an electric field is ensured; then, a slow boosting mode is adopted to adjust the first voltage to the flashover voltage of the high-frequency power supply, so that the flashover occurs again in the high-frequency power supply, wherein the first voltage can be set according to the dust removal effect when the high-frequency power supply works, the first voltage is smaller than the flashover voltage, when the secondary voltage corresponding to the high-frequency power supply is adjusted to the first voltage, the better dust removal effect can be ensured, the flashover voltage of the high-frequency power supply refers to the voltage for enabling the flashover of the high-frequency power supply to occur, and the flashover voltage can be determined in advance, for example, based on the flashover voltage, the first voltage can be 60% of the flashover voltage as an example.
Optionally, the above characteristic parameters further include a fast boost time, a fast boost step length, a slow boost time, and a slow boost step length, and the adjusting the secondary voltage to the first voltage by adopting a fast boost mode includes:
adjusting the secondary voltage to the first voltage according to the rapid boosting time and the rapid boosting step length;
the method for adjusting the first voltage to the flashover voltage of the high-frequency power supply by adopting a slow boosting mode comprises the following steps:
and adjusting the first voltage to the flashover voltage according to the slow boost time and the slow boost step length.
The fast boost step reflects the boost frequency of the secondary voltage in the fast boost stage, for example, the voltage is boosted by a voltage of v per second, in the fast boost stage, based on the determined fast boost time and the fast boost step, the boost speed and the boost frequency in the fast boost stage can be controlled, for example, the fast boost step is a voltage, the fast boost time is b seconds, which means that the secondary voltage is taken as a starting point, each a voltage is one step, and the voltage is boosted to the first voltage after b seconds, and it can be understood that the fast boost time and the fast boost step can be determined based on the first voltage and the secondary voltage.
The slow boost time and the slow boost step size may be reflected in a boost frequency corresponding to a slow boost stage in which the boost frequency is smaller than a boost frequency corresponding to a fast boost stage. The slow step-up step is smaller than the fast step-up step.
Alternatively, the fast boost time and the slow boost time may be determined based on the total time of each flashover, i.e. the sum of the fast boost time and the slow boost time is equal to the total time of one flashover (total time of a single flashover). The fast boost time may be less than the slow boost time, such as 40% of the total time for the fast boost time and 60% of the total time for the slow boost time, as an example.
For a better description and understanding of the principles of the method provided by the present invention, the following description of the present invention is provided in connection with an alternative embodiment. It should be noted that, the specific implementation manner of each step in this specific embodiment should not be construed as limiting the solution of the present invention, and other implementation manners that can be considered by those skilled in the art based on the principle of the solution provided by the present invention should also be considered as being within the protection scope of the present invention.
In this example, referring to a schematic diagram of the high-frequency power supply data collection device shown in fig. 2, in this example, relevant data of the high-frequency power supply is collected by the high-frequency power supply data collection device shown in fig. 2, which includes a voltage sensor, a current sensor (voltage, current sensor shown in fig. 2), an AD analog-to-digital converter (AD 7352 analog-to-digital converter shown in fig. 2), a DSP processor, and an FPGA, wherein the voltage sensor, the current sensor, and the AD analog-to-digital converter are used for signal conditioning and analog-to-digital conversion, and the DSP processor and the FPGA are used for data processing and flashover control, which will be described in detail in the following schemes.
Referring to a flow chart of a flashover frequency control method of an electric dust removal high-voltage power supply shown in fig. 3, a specific flow is as follows:
step 1, the FPGA acquires waveform signals such as the secondary voltage, the secondary current, the primary voltage and the like of the high-voltage power supply in real time through the AD analog-to-digital converter (corresponding to the data acquired by the FPGA shown in fig. 3 through the AD), and after the data is subjected to average processing, the average value is cached in the internal dual-port RAM so as to be convenient for the DSP to read.
And 2, when the DSP enters the quick interrupt (about 17 us), reading the secondary voltage in the RAM through the DMA (corresponding to the DSP shown in fig. 3, reading the FPGA data through the DMA), comparing the secondary voltage with the primary voltage, judging whether the high-frequency power supply is in flashover (corresponding to the judgment shown in fig. 3, judging that the high-frequency power supply is in flashover or not, if the secondary voltage is less than one third of the primary voltage, judging that the high-frequency power supply is not in flashover, and executing the step 1 again.
Step 3, when the DSP detects that a flashover occurs, determining a current flashover frequency, and calculating a fast boost time, a fast boost step length, a slow boost time, a slow boost step length, a total time of a single flashover and a PWM pause time (corresponding to the calculated characteristic parameters shown in fig. 3) when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency (or the current flashover frequency), wherein in the example, the total time of the single flashover is 60 s/the current flashover frequency, the PWM pause time is 50ms, the fast boost time is 40% of the total time of the single flashover, the slow boost time is 60% of the total time of the single flashover, and the first voltage is 60% of the flashover voltage.
And 4, when the high-frequency power supply is in flashover, pausing for 50ms according to the PWM pause time (corresponding to the PWM wave stopping shown in fig. 3), so that the flashover spark is extinguished and the electric field medium is recovered, and resuming the PWM wave (corresponding to the PWM wave resuming shown in fig. 3) after pausing for 50ms is facilitated.
Step 5, adjusting the secondary voltage to the first voltage according to the fast boosting time and the fast boosting step length (corresponding to the fast boosting stage shown in fig. 3), and then adjusting the first voltage to the flashover voltage according to the slow boosting time and the slow boosting step length (corresponding to the slow boosting stage shown in fig. 3), at this time, the high-frequency power supply is flashover again, and step 1 is re-executed.
Based on the same principle as the method shown in fig. 1, the embodiment of the present invention further provides a flashover frequency control device 20 of an electric dust removal high voltage power supply, as shown in fig. 4, the flashover frequency control device 20 of the electric dust removal high voltage power supply may include a flashover judging module 210, a characteristic parameter determining module 220 and a flashover control module 230, wherein:
the flashover judging module 210 is configured to obtain a secondary voltage of the high-frequency power supply, and determine whether the high-frequency power supply is flashover according to the secondary voltage;
the characteristic parameter determining module 220 is configured to determine a current flashover frequency when the high-frequency power supply is flashover, and determine a characteristic parameter of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, where the characteristic parameter includes a total time of a single flashover and the preset flashover frequency;
the flashover control module 230 is configured to control the high-frequency power supply to generate flashover again according to the characteristic parameter.
Optionally, the above-mentioned feature parameter determining module 220 is specifically configured to, when the high-frequency power supply is controlled to flash again according to the feature parameter:
adopting a rapid boosting mode to adjust the secondary voltage to the first voltage;
adopting a slow boosting mode to adjust the first voltage to the flashover voltage of the high-frequency power supply;
when the secondary voltage is the flashover voltage, the high-frequency power supply is controlled to generate flashover again according to the total time of the single flashover and the preset flashover frequency.
Optionally, the above characteristic parameters further include a fast boost time, a fast boost step length, a slow boost time, and a slow boost step length, and when the above characteristic parameter determining module 220 adjusts the secondary voltage to the first voltage by adopting the fast boost mode, the method is specifically used for:
adjusting the secondary voltage to the first voltage according to the rapid boosting time and the rapid boosting step length;
the characteristic parameter determining module 220 is specifically configured to, when a slow boost mode is adopted to adjust the first voltage to the flashover voltage of the high-frequency power supply:
and adjusting the first voltage to the flashover voltage according to the slow boost time and the slow boost step length.
Optionally, the apparatus further comprises:
the recording module is used for recording the current flashover voltage, the current flashover current and the power supply operation parameters of the high-frequency power supply when the high-frequency power supply flashover occurs, wherein the power supply operation parameters comprise at least one of primary voltage, primary current, secondary voltage, secondary current, power supply PWM pulse width, power supply PWM frequency and flashover times.
Optionally, the apparatus further comprises:
and the adjusting module is used for adjusting the secondary voltage to the set voltage when the high-frequency power supply is in flashover.
Optionally, the above characteristic parameter further includes a PWM pause time, and the apparatus further includes:
and the pause module is used for pausing the PWM waves corresponding to the high-frequency power supply according to the PWM pause time when the high-frequency power supply is in flashover.
Alternatively, the PWM pause time is 50ms.
The flashover frequency control device of the electric precipitation high voltage power supply according to the embodiment of the present invention may execute the flashover frequency control method of the electric precipitation high voltage power supply according to the embodiment of the present invention, and its implementation principle is similar, and actions executed by each module and unit in the flashover frequency control device of the electric precipitation high voltage power supply according to each embodiment of the present invention correspond to steps in the flashover frequency control method of the electric precipitation high voltage power supply according to each embodiment of the present invention, and detailed functional description of each module of the flashover frequency control device of the electric precipitation high voltage power supply may be specifically referred to description in the flashover frequency control method of the corresponding electric precipitation high voltage power supply shown in the foregoing, which is not repeated herein.
The flashover frequency control device of the electric dust removal high-voltage power supply can be a computer program (comprising program codes) running in computer equipment, for example, the flashover frequency control device of the electric dust removal high-voltage power supply is application software; the device can be used for executing corresponding steps in the method provided by the embodiment of the invention.
In some embodiments, the flashover frequency control device of the electric dust removing high voltage power supply provided in the embodiments of the present invention may be implemented by combining software and hardware, and as an example, the flashover frequency control device of the electric dust removing high voltage power supply provided in the embodiments of the present invention may be a processor in the form of a hardware decoding processor, which is programmed to execute the flashover frequency control method of the electric dust removing high voltage power supply provided in the embodiments of the present invention, for example, the processor in the form of a hardware decoding processor may employ one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSP, programmable logic device (PLD, programmable Logic Device), complex programmable logic device (CPLD, complex Programmable Logic Device), field programmable gate array (FPGA, field-Programmable Gate Array) or other electronic components.
In other embodiments, the flashover frequency control device of the electric dust removing high voltage power supply provided in the embodiments of the present invention may be implemented in a software manner, and fig. 4 shows the flashover frequency control device of the electric dust removing high voltage power supply stored in a memory, which may be software in the form of a program, a plug-in unit, and the like, and includes a series of modules including a flashover judging module 210, a characteristic parameter determining module 220, and a flashover control module 230, which are used to implement the flashover frequency control method of the electric dust removing high voltage power supply provided in the embodiments of the present invention.
The modules involved in the embodiments of the present invention may be implemented in software or in hardware. The name of a module does not in some cases define the module itself.
Based on the same principles as the methods shown in the embodiments of the present invention, there is also provided in the embodiments of the present invention an electronic device, which may include, but is not limited to: a processor and a memory; a memory for storing a computer program; a processor for executing the method according to any of the embodiments of the invention by invoking a computer program.
In an alternative embodiment, there is provided an electronic device, as shown in fig. 5, the electronic device 4000 shown in fig. 5 includes: a processor 4001 and a memory 4003. Wherein the processor 4001 is coupled to the memory 4003, such as via a bus 4002. Optionally, the electronic device 4000 may further comprise a transceiver 4004, the transceiver 4004 may be used for data interaction between the electronic device and other electronic devices, such as transmission of data and/or reception of data, etc. It should be noted that, in practical applications, the transceiver 4004 is not limited to one, and the structure of the electronic device 4000 is not limited to the embodiment of the present invention.
The processor 4001 may be a CPU (Central Processing Unit ), general purpose processor, DSP (Digital Signal Processor, data signal processor), ASIC (Application Specific Integrated Circuit ), FPGA (Field Programmable Gate Array, field programmable gate array) or other programmable logic device, transistor logic device, hardware components, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with this disclosure. The processor 4001 may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.
Bus 4002 may include a path to transfer information between the aforementioned components. Bus 4002 may be a PCI (Peripheral Component Interconnect, peripheral component interconnect standard) bus or an EISA (Extended Industry Standard Architecture ) bus, or the like. The bus 4002 can be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.
Memory 4003 may be, but is not limited to, ROM (Read Only Memory) or other type of static storage device that can store static information and instructions, RAM (Random Access Memory ) or other type of dynamic storage device that can store information and instructions, EEPROM (Electrically Erasable Programmable Read Only Memory ), CD-ROM (Compact Disc Read Only Memory, compact disc Read Only Memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
The memory 4003 is used for storing application program codes (computer programs) for executing the present invention and is controlled to be executed by the processor 4001. The processor 4001 is configured to execute application program codes stored in the memory 4003 to realize what is shown in the foregoing method embodiment.
The electronic device shown in fig. 5 is only an example, and should not impose any limitation on the functions and application scope of the embodiment of the present invention.
Embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, which when run on a computer, causes the computer to perform the corresponding method embodiments described above.
According to another aspect of the present invention, there is also provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the methods provided in the implementation of the various embodiments described above.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
It should be appreciated that the flow charts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The computer readable storage medium according to embodiments of the present invention may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer-readable storage medium carries one or more programs which, when executed by the electronic device, cause the electronic device to perform the methods shown in the above-described embodiments.
The above description is only illustrative of the preferred embodiments of the present invention and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in the present invention is not limited to the specific combinations of technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the spirit of the disclosure. Such as the above-mentioned features and the technical features disclosed in the present invention (but not limited to) having similar functions are replaced with each other.
Claims (9)
1. The flashover frequency control method of the electric dust removal high-voltage power supply is characterized by comprising the following steps of:
acquiring secondary voltage of a high-frequency power supply, and determining whether the high-frequency power supply is flashover or not according to the secondary voltage;
if the high-frequency power supply is in flashover, determining a current flashover frequency, and determining characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, wherein the characteristic parameters comprise total time of single flashover and the preset flashover frequency;
according to the characteristic parameters, controlling the high-frequency power supply to flash again;
and controlling the high-frequency power supply to flash again according to the characteristic parameters, wherein the method comprises the following steps of:
adopting a rapid boosting mode to adjust the secondary voltage to a first voltage;
adopting a slow boosting mode, adjusting the first voltage to the flashover voltage of the high-frequency power supply, wherein the boosting frequency of the fast boosting mode is larger than that of the slow boosting mode;
and when the secondary voltage is the flashover voltage, controlling the high-frequency power supply to flashover again according to the total time of the single flashover and the preset flashover frequency.
2. The method of claim 1, wherein the characteristic parameters further comprise a fast boost time, a fast boost step size, a slow boost time, and a slow boost step size, and wherein adjusting the secondary voltage to the first voltage in the fast boost mode comprises:
according to the rapid boosting time and the rapid boosting step length, adjusting the secondary voltage to the first voltage;
the step-up mode is adopted to adjust the first voltage to the flashover voltage of the high-frequency power supply, and the step-up mode comprises the following steps:
and adjusting the first voltage to a flashover voltage according to the slow boost time and the slow boost step length.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
when the high-frequency power supply is in flashover, recording the current flashover voltage, the current flashover current and power supply operation parameters of the high-frequency power supply, wherein the power supply operation parameters comprise at least one of primary voltage, primary current, secondary voltage, secondary current, power supply PWM pulse width, power supply PWM frequency and flashover times.
4. The method according to claim 1 or 2, characterized in that the method further comprises:
and when the high-frequency power supply is in flashover, adjusting the secondary voltage to a set voltage.
5. The method according to claim 1 or 2, wherein the characteristic parameter further comprises a PWM pause time, the method further comprising:
when the high-frequency power supply is in flashover, the PWM waves corresponding to the high-frequency power supply are suspended according to the PWM suspension time.
6. The method of claim 5, wherein the PWM pause time is 50ms.
7. An flashover frequency control device of an electric dust removal high-voltage power supply, which is characterized by comprising:
the flashover judging module is used for obtaining the secondary voltage of the high-frequency power supply and determining whether the high-frequency power supply is flashover or not according to the secondary voltage;
the characteristic parameter determining module is used for determining a current flashover frequency when the high-frequency power supply is in flashover, and determining characteristic parameters of the high-frequency power supply when the current flashover frequency is the preset flashover frequency according to the preset flashover frequency and the current flashover frequency, wherein the characteristic parameters comprise total time of single flashover and the preset flashover frequency;
the flashover control module is used for controlling the high-frequency power supply to flashover again according to the characteristic parameters;
and controlling the high-frequency power supply to flash again according to the characteristic parameters, wherein the method comprises the following steps of:
adopting a rapid boosting mode to adjust the secondary voltage to a first voltage;
adopting a slow boosting mode, adjusting the first voltage to the flashover voltage of the high-frequency power supply, wherein the boosting frequency of the fast boosting mode is larger than that of the slow boosting mode;
and when the secondary voltage is the flashover voltage, controlling the high-frequency power supply to flashover again according to the total time of the single flashover and the preset flashover frequency.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of claims 1-6 when the computer program is executed.
9. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the method of any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210381109.9A CN114870996B (en) | 2022-04-12 | 2022-04-12 | Flashover frequency control method, device, equipment and medium for electric precipitation high-voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210381109.9A CN114870996B (en) | 2022-04-12 | 2022-04-12 | Flashover frequency control method, device, equipment and medium for electric precipitation high-voltage power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114870996A CN114870996A (en) | 2022-08-09 |
| CN114870996B true CN114870996B (en) | 2024-03-08 |
Family
ID=82668782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210381109.9A Active CN114870996B (en) | 2022-04-12 | 2022-04-12 | Flashover frequency control method, device, equipment and medium for electric precipitation high-voltage power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114870996B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117439016B (en) * | 2023-08-24 | 2024-09-03 | 无锡诚赢科技有限公司 | Power supply flashover control method, system, terminal and storage medium |
| CN117358424B (en) * | 2023-10-11 | 2024-04-26 | 国能神皖合肥发电有限责任公司 | Electric dust removal flashover current limiting control method and device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB820230A (en) * | 1956-03-06 | 1959-09-16 | Apra Precipitator Corp | Control circuit arrangements for electrostatic precipitators |
| DD230797A1 (en) * | 1982-07-22 | 1985-12-11 | Rheinische Braunkohlenw Ag | METHOD AND ELECTRIC FILTER FOR SEPARATING COMBUSTIBLE FLUID FROM GASES |
| CN103611631A (en) * | 2013-11-18 | 2014-03-05 | 江苏科技大学 | High-frequency high-voltage electrostatic dust removal power control system and method |
| CN204841957U (en) * | 2015-08-19 | 2015-12-09 | 北京博谦工程技术有限公司 | High -pressure control system of converter electrostatic precipitator technology |
| CN109342897A (en) * | 2018-11-06 | 2019-02-15 | 南京工业大学 | Small-sized mountain fire induced flashover discharge and early warning simulation device for high-voltage transmission line |
| CN113552498A (en) * | 2021-07-02 | 2021-10-26 | 襄阳华中科技大学先进制造工程研究院 | High-voltage direct-current power supply flashover detection and parameter metering system and method |
| CN114100860A (en) * | 2022-01-29 | 2022-03-01 | 华能平凉发电有限责任公司 | Flashover voltage control method and device for electric dust collector |
-
2022
- 2022-04-12 CN CN202210381109.9A patent/CN114870996B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB820230A (en) * | 1956-03-06 | 1959-09-16 | Apra Precipitator Corp | Control circuit arrangements for electrostatic precipitators |
| DD230797A1 (en) * | 1982-07-22 | 1985-12-11 | Rheinische Braunkohlenw Ag | METHOD AND ELECTRIC FILTER FOR SEPARATING COMBUSTIBLE FLUID FROM GASES |
| CN103611631A (en) * | 2013-11-18 | 2014-03-05 | 江苏科技大学 | High-frequency high-voltage electrostatic dust removal power control system and method |
| CN204841957U (en) * | 2015-08-19 | 2015-12-09 | 北京博谦工程技术有限公司 | High -pressure control system of converter electrostatic precipitator technology |
| CN109342897A (en) * | 2018-11-06 | 2019-02-15 | 南京工业大学 | Small-sized mountain fire induced flashover discharge and early warning simulation device for high-voltage transmission line |
| CN113552498A (en) * | 2021-07-02 | 2021-10-26 | 襄阳华中科技大学先进制造工程研究院 | High-voltage direct-current power supply flashover detection and parameter metering system and method |
| CN114100860A (en) * | 2022-01-29 | 2022-03-01 | 华能平凉发电有限责任公司 | Flashover voltage control method and device for electric dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114870996A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114870996B (en) | Flashover frequency control method, device, equipment and medium for electric precipitation high-voltage power supply | |
| JP4617268B2 (en) | Storage device and storage device processing method | |
| CN103078485B (en) | A kind of Inverter Over-current-limiting Methods guard method and device | |
| CN110021792B (en) | Charging control method and device, terminal equipment and computer storage medium | |
| WO2018201708A1 (en) | Overcurrent protection method, control system and storage medium for bridge arm current | |
| EP2922193A1 (en) | Power conversion apparatus and control method for power conversion apparatus | |
| CN111037055B (en) | Welding control method, welding machine control device and welding machine | |
| CN109633283B (en) | Bus capacitance value monitoring method and device and terminal equipment | |
| CN116979528B (en) | Method, device and medium for quickly starting low-voltage ride through of power electronic converter | |
| WO2021088259A1 (en) | Control system and method for power backup system | |
| CN110797968B (en) | Power-off prevention method and system for uninterruptible power supply and terminal equipment | |
| CN112396832B (en) | Vehicle data processing method and device | |
| WO2021104077A1 (en) | Oscillation processing method for accessing switching power supply to weak power grid and related components | |
| CN113933563B (en) | Sampling abnormal large value filtering method, device and system based on self-adaptive iterative operation mathematical morphology method | |
| CN112595984B (en) | Lithium battery voltage detection method and device, electrical equipment and storage medium | |
| CN205353187U (en) | Transient voltage recorder based on FPGA | |
| CN108923378A (en) | A kind of Width funtion apparatus for protecting power supply for stereo set | |
| CN109995087B (en) | Frequency modulation control method and device for power station and frequency modulation system | |
| CN114914887B (en) | Three-phase overcurrent detection protection system and overcurrent protection equipment applied to APF | |
| CN112491291B (en) | On-off control method, device, equipment and medium for grid-connected inverter circuit | |
| CN113098247B (en) | Power supply anti-peak processing method and device and terminal | |
| CN117277745B (en) | Power tube driving control method, power tube driving system, electronic equipment and chip | |
| CN109709509B (en) | Method for judging signal orientation trend | |
| CN115733417A (en) | Current harmonic suppression method, current harmonic suppression device, storage medium and electronic equipment | |
| CN113113899A (en) | Method and device for protecting sudden change of direct-current transmission line and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |