CN112636564A - Converter control method and device, converter, electronic device and storage medium - Google Patents
Converter control method and device, converter, electronic device and storage medium Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The invention provides a control method and a control device of a converter, the converter, electronic equipment and a storage medium, wherein the method comprises the following steps: when the target converter is electrified and standby, detecting the fluctuation range and the fluctuation duration of the current power grid parameters; and controlling the running state of the converter according to the fluctuation range and the fluctuation duration. According to the invention, the technical problem that the operation state of the converter cannot be controlled due to power grid fluctuation in the related technology is solved.
Description
Technical Field
The invention relates to the field of electricity, in particular to a control method and device of a current transformer, the current transformer, electronic equipment and a storage medium.
Background
In the related art, the traditional converter needs to complete external parameter configuration, power grid voltage, power grid frequency, phase, abnormal state protection value, abnormal state protection time, operation mode and the like before being put into use; once the series of power grid parameters are fixed, the internal controller of the converter operates according to the set power grid parameters, and the traditional converter can meet the use requirement in the area where the power grid or the power system operates normally and stably; however, under some extreme conditions, such as a construction site, a diesel generator is often used for power generation, the power quality is poor, the fluctuation is large, the power quality is often large near a large-scale load of a factory, even an unmanned area and the like, and the converter is a pure off-grid environment.
In view of the above technical problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
In view of the above problems, the present invention provides a method and an apparatus for controlling a converter, an electronic device, and a storage medium, so as to at least solve the technical problem in the related art that the operating state of the converter cannot be controlled due to grid fluctuation. The technical scheme is as follows:
in a first aspect, a method for controlling a converter is provided, including: when the target converter is electrified and standby, detecting the fluctuation range and the fluctuation duration of the current power grid parameters; and controlling the running state of the converter according to the fluctuation range and the fluctuation duration.
In one possible implementation, before the target converter is powered on for standby, the method further includes: detecting a first power grid parameter when the power grid side is stable; and taking the first power grid parameter as a standard value of the power quality of the power grid.
In another possible implementation manner, the detecting the first grid parameter when the grid side is stable includes at least one of: detecting a power grid voltage parameter when the power grid side is stable; detecting a power grid frequency parameter when the power grid side is stable; detecting a power grid phase parameter when the power grid side is stable; and detecting a three-phase balance degree parameter when the power grid side is stable.
In another possible implementation manner, the controlling the operation state of the target converter according to the fluctuation range and the fluctuation duration includes: calculating a fluctuation factor e according to the fluctuation range, the fluctuation duration and the first power grid parameter, wherein the fluctuation factor is calculated by the following formula: e ═ upper limit of the current grid parameter | -, first fluctuation duration | -, lower limit of the current grid parameter | -, second fluctuation duration }/2; and controlling the running state of the target converter according to the fluctuation factor.
In another possible implementation manner, the controlling the operation state of the target converter according to the fluctuation factor includes: comparing the fluctuation factor with a first preset range value, wherein the first preset range value is used for indicating that the power grid side fluctuation range belongs to a stable range; and if the fluctuation factor is within the first preset range value, sending an operation instruction to the target converter.
In another possible implementation manner, the method further includes: if the fluctuation factor is larger than the first preset range value, comparing the fluctuation factor with a second preset range value, wherein the second preset range value represents a safe design margin value of the target converter; and if the fluctuation factor is within the second preset range value, sending an operation instruction to the target converter.
In a second aspect, there is provided a control apparatus for a converter, comprising: the first detection module is used for detecting the fluctuation range and the fluctuation duration of the current power grid parameters when the target converter is electrified and standby; and the control module is used for controlling the running state of the converter according to the fluctuation range and the fluctuation duration.
In one possible implementation, the apparatus further includes: the second detection module is used for detecting a first power grid parameter when the power grid side is stable before the target converter is powered on for standby; and the determining module is used for taking the first power grid parameter as a standard value of the power quality of the power grid.
In another possible implementation manner, the second detection module includes at least one of: the first detection unit is used for detecting a power grid voltage parameter when the power grid side is stable; the second detection unit is used for detecting the power grid frequency parameter when the power grid side is stable; the third detection unit is used for detecting the power grid phase parameter when the power grid side is stable; and the fourth detection unit is used for detecting the three-phase balance degree parameter when the power grid side is stable.
In another possible implementation manner, the control module includes: the calculation unit is used for calculating a fluctuation factor e according to the fluctuation range, the fluctuation duration and the first power grid parameter, wherein the fluctuation factor is calculated by the following formula: e ═ upper limit of the current grid parameter | -, first fluctuation duration | -, lower limit of the current grid parameter | -, second fluctuation duration }/2; and the control unit is used for controlling the running state of the target converter according to the fluctuation factor.
In another possible implementation, the control unit includes: the first comparison subunit is used for comparing the fluctuation factor with a first preset range value, wherein the first preset range value is used for indicating that the power grid side fluctuation range belongs to a stable range; and the first sending subunit is used for sending an operation instruction to the target converter when the fluctuation factor is within the first preset range value.
In another possible implementation manner, the control unit further includes: the second comparison subunit is used for comparing the fluctuation factor with a second preset range value when the fluctuation factor is larger than the first preset range value, wherein the second preset range value represents a safe design margin value of the target converter; and the second sending subunit is used for sending an operation instruction to the target converter when the fluctuation factor is within the second preset range value.
In a third aspect, a converter is further provided, where a power quality detection module is arranged in the converter, and the power quality detection module is configured to execute any one of the converter control methods.
In a fourth aspect, there is also provided an electronic device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps of any of the above method embodiments.
In a fifth aspect, a storage medium is provided, in which a computer program is stored, wherein the computer program is configured to perform the steps in any of the above apparatus embodiments when executed.
By means of the technical scheme, the control method of the converter provided by the embodiment of the invention detects the fluctuation range and the fluctuation duration of the current power grid parameter when the target converter is electrified and standby; and then, the operation state of the converter is controlled according to the fluctuation range and the fluctuation duration, so that the operation fluctuation of the power grid is actively detected, the operation parameter of the converter is adjusted, the technical problem that the operation state of the converter cannot be controlled due to the power grid fluctuation in the related technology is solved, and the safe operation of the converter is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below.
Fig. 1 is a block diagram of a hardware structure in which a control method of a converter according to an embodiment of the present invention is applied to a computer terminal;
fig. 2 is a flowchart of a control method of a converter according to an embodiment of the present invention;
fig. 3 is a control flow chart of a converter according to an embodiment of the present invention;
fig. 4 is a block diagram of a control apparatus of a converter 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
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that such uses are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to".
In order to solve the technical problems in the related art, the present embodiment provides a method for controlling a converter. The following describes the technical solution of the present invention and how to solve the above technical problems with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
The method provided by the embodiment of the invention can be executed in a mobile terminal, a server, a computer terminal or a similar operation device. Taking the operation on a computer terminal as an example, fig. 1 is a hardware structure block diagram of a converter control method applied to a computer terminal according to an embodiment of the present invention. As shown in fig. 1, the computer terminal may include one or more (only one shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and optionally, a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the computer terminal. For example, the computer terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 may be used to store a computer program, for example, a software program of an application software and a module, such as a computer program corresponding to the control method of the converter in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory, and may also include volatile memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to a computer terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
Fig. 2 is a flowchart of a control method of a converter according to an embodiment of the present invention, and as shown in fig. 2, the flowchart includes the following steps:
step S202, when the target converter is electrified and standby, detecting the fluctuation range and the fluctuation duration of the current power grid parameters;
and step S204, controlling the running state of the converter according to the fluctuation range and the fluctuation duration.
According to the control method of the converter, when the target converter is electrified and standby, the fluctuation range and the fluctuation duration of the current power grid parameters are detected; and then, the operation state of the converter is controlled according to the fluctuation range and the fluctuation duration, so that the operation fluctuation of the power grid is actively detected, the operation parameters of the converter are adjusted, the technical problem that the operation of the converter cannot be controlled due to the power grid fluctuation in the related technology is solved, and the safe operation of the converter is ensured.
The embodiment of the present invention provides a possible implementation manner, before the target converter is powered on and standby, the implementation manner further includes: detecting a first power grid parameter when the power grid side is stable; and taking the first power grid parameter as a standard value of the power quality of the power grid.
According to the above embodiment, the first grid parameter when detecting the grid side stability includes at least one of: detecting a power grid voltage parameter when the power grid side is stable; detecting a power grid frequency parameter when the power grid side is stable; detecting a power grid phase parameter when the power grid side is stable; and detecting a three-phase balance degree parameter when the power grid side is stable.
In this embodiment, after the converter is put into use, if the power grid is stable and the power grid parameters (i.e., the first power grid parameters) when the power grid is stable are normal information, such as the power grid voltage, the power grid frequency, the power grid phase, the power grid operation standard, the power grid protection range, and other information, for example, the voltage value 220V, the frequency 50Hz, and the phase is also normal, the power grid parameters at this time are taken as the standard values.
The embodiment of the invention provides a possible implementation manner, and the method for controlling the operation state of the target converter according to the fluctuation range and the fluctuation duration comprises the following steps: calculating a fluctuation factor e according to the fluctuation range, the fluctuation duration and the first power grid parameter, wherein the fluctuation factor is calculated by the following formula: e ═ upper limit of the current grid parameter | -, first fluctuation duration | -, lower limit of the current grid parameter | -, second fluctuation duration }/2; and controlling the running state of the target converter according to the fluctuation factor.
The embodiment of the invention provides a possible implementation manner, and the control of the running state of the target converter according to the fluctuation factor comprises the following steps: comparing the fluctuation factor with a first preset range value, wherein the first preset range value is used for indicating that the power grid side fluctuation range belongs to a stable range; and if the fluctuation factor is within a first preset range value, sending an operation instruction to the target converter.
The embodiment of the present invention provides a possible implementation manner, further including: if the fluctuation factor is larger than the first preset range value, comparing the fluctuation factor with a second preset range value, wherein the second preset range value represents a safe design margin value of the target converter; and if the fluctuation factor is within a second preset range value, sending an operation instruction to the target converter.
In an example of the present disclosure, after a conventional converter is put into use, a control system (e.g., a central processing unit) of the converter may operate normally according to externally configured grid parameters, such as grid voltage, frequency, phase, operation standard, protection range, and the like, if a grid state is stable, in order to cope with some extreme use environments, preferably, a power quality detection and evaluation unit module is added on the basis of the conventional converter, and active adaptation of the operation parameters is monitored by the power quality detection and evaluation unit module; the converter control system receives output data (namely the first power grid parameter) of the power quality detection and evaluation unit module, and records a fluctuation value (namely the fluctuation range), a fluctuation upper limit, a fluctuation lower limit and a maintaining time after the power grid fluctuates; calculating the value of the fluctuation factor e; and judging the fluctuation grade (namely the first preset range value), adjusting the operation parameters, generating a corresponding operation scheme, and maintaining the normal operation of the converter.
Optionally, if the fluctuation factor exceeds the fluctuation level range, it is continuously determined whether the fluctuation factor is within the design margin range, so as to ensure that the converter can normally operate within the margin allowed range.
Preferably, the user needs to derive the grid parameters and the operation curve of the grid side from the power quality detection and evaluation unit module, and specify the grid fault to provide data for maintenance personnel.
The invention is further illustrated below with reference to a specific embodiment:
fig. 3 is a control flow chart of a converter according to an embodiment of the present invention, and as shown in fig. 3, the embodiment of the present invention designs a converter control method adaptable to grid parameters, and preferably, adds an electric energy quality detection module to a conventional converter, where the electric energy quality detection module can actively detect grid operation fluctuation, record fluctuation range and time, calculate a value of a grid fluctuation factor e, and then dynamically adjust operation parameters, adapt to grid condition operation, monitor grid fluctuation in real time, record an operation curve, and can evaluate and predict grid quality.
Referring to fig. 3, the working process of the novel converter control method based on the power quality detection and evaluation technology of the power grid is as follows:
the converter enters an application occasion, and a power-on standby stage comprises the following steps:
step S301, enabling a power grid power detection module, namely enabling a power grid power quality detection module in the converter;
step S302, detecting the electric energy quality information (namely the first power grid parameter, namely the standard value) such as the voltage, the frequency, the phase and the three-phase balance degree of the current converter accessed to the power grid;
step S303, calculating a grid fluctuation factor e, e ═ upper limit-standard value | active time + lower limit-standard value | active time }/2 by using an algorithm, wherein the active time (i.e. the fluctuation duration) refers to the number of occurrences of the sampling value exceeding the stable operation reference range, namely a sampling period, and preferably, the system defaults to 1 ms;
preferably, after calculating the fluctuation factor, executing step S304 to generate current grid fluctuation factor data;
preferably, step S305 is also performed, intervening in the threshold setting according to the evaluation data;
in this embodiment, before the converter is put into operation, the internal grid power quality detection module operates for a period of time before the converter, so as to generate grid power quality evaluation data, and set a fluctuation factor judgment threshold (i.e. the first preset range value) and a grid fluctuation level according to the actually measured current power quality and human intervention; if the operation state which cannot be stabilized still appears after the setting, the detection, the judgment and the threshold value are required to be re-set at the moment.
And step S306, comparing and judging according to the fluctuation factor value and a threshold value.
Step S307, setting a power grid fluctuation grade in advance according to a converter system design margin (namely the second preset range value), and comparing a fluctuation factor value with a preset fluctuation grade value to obtain the current power grid power quality fluctuation grade; if the operation condition is met, executing step S308, defining operation parameters and modes, and recording a fluctuation factor data curve; then, step S309a is executed, the grid parameter information such as grid voltage, frequency, phase and the like is periodically self-checked, and step S309b may be executed at the same time, and a control signal is sent to the converter control system;
in step S310, the converter control system receives the instruction (i.e. the operation instruction), and outputs a control signal to control the operation state of the converter, i.e. the converter can be put into operation.
In a specific example, the current power grid phase voltage grade is 220V/50Hz, the power grid is stable, normal fluctuation of 1-2V exists, the converter is electrified and standby, the power grid power quality detection module detects and obtains information such as the current power grid standard value voltage 220V, the standard value frequency 50Hz, the phase is normal, the sampling frequency is fixed to 10KHz, according to a real-time sampling value, the fluctuation factor e is calculated through an algorithm to obtain { I upper limit-standard value I action time + I lower limit-standard value I action time }/2, the system default action time is 1ms, and if larger fluctuation exists really, the action time is accumulated; when the power grid is stable, the fluctuation factor range obtained by calculation is approximately between 0 and 2, namely the fluctuation factor range in the stable power grid state can be defined; and subsequently, an operable instruction is sent to the converter, and the converter can be started to operate.
If the peripheral large-scale load equipment is subjected to start-stop conversion to cause short-term fluctuation of the power grid of about 5 ms/20-30V, similarly, the fluctuation factor range is obtained by calculation and is approximately between 100 and 150, that is, the short-term fluctuation of the power grid can be defined, but the fluctuation is within the allowable range of the design margin (namely, the safe design margin), and the fault shutdown should not occur at the moment, a continuous operation instruction needs to be sent to the converter, the converter can continuously operate, on the premise that the equipment design margin is met, the operation state of the converter can be controlled by presetting the fluctuation factor and the fault level range at the early stage.
Preferably, the power quality detection module of the power grid can be used for evaluating the power quality of the power grid independently and is not limited to being used in combination with a converter.
According to the implementation steps, compared with the conventional converter, the converter control method provided by the embodiment of the invention has the advantages that the adaptability of a system with the converter to a power grid is enhanced; the converter system can actively adapt to power grid fluctuation and dynamically adjust operation parameters and operation states; the system can contain larger fluctuation allowance and is mainly suitable for extreme power generation and power utilization environments.
Based on the control method of the converter provided in the foregoing embodiments, based on the same inventive concept, the present embodiment further provides a control apparatus of the converter, which is used to implement the foregoing embodiments and preferred embodiments, and has already been described and will not be described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 4 is a block diagram of a control apparatus of a converter according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes: the first detection module 40 is used for detecting the fluctuation range and the fluctuation duration of the current power grid parameter when the target converter is powered on and standby; and a control module 42 connected to the first detection module 40 for controlling the operation state of the converter according to the fluctuation range and the fluctuation duration.
In a possible implementation manner, the apparatus further includes: the second detection module is used for detecting a first power grid parameter when the power grid side is stable before the target converter is powered on for standby; and the determining module is used for taking the first power grid parameter as a standard value of the power quality of the power grid.
In another possible implementation manner, the second detection module includes at least one of the following: the first detection unit is used for detecting a power grid voltage parameter when the power grid side is stable; the second detection unit is used for detecting the power grid frequency parameter when the power grid side is stable; the third detection unit is used for detecting the power grid phase parameter when the power grid side is stable; and the fourth detection unit is used for detecting the three-phase balance degree parameter when the power grid side is stable.
In another possible implementation, the control module 42 includes: the calculation unit is used for calculating a fluctuation factor e according to the fluctuation range, the fluctuation duration and the first power grid parameter, wherein the fluctuation factor is calculated by the following formula: e ═ upper limit of the current grid parameter | -, first fluctuation duration | -, lower limit of the current grid parameter | -, second fluctuation duration }/2; and the control unit is used for controlling the running state of the target converter according to the fluctuation factor.
In another possible implementation, the control unit includes: the first comparison subunit is used for comparing the fluctuation factor with a first preset range value, wherein the first preset range value is used for indicating that the power grid side fluctuation range belongs to a stable range; and the first sending subunit is used for sending an operation instruction to the target converter when the fluctuation factor is within a first preset range value.
In another possible implementation manner, the control unit further includes: the second comparison subunit is used for comparing the fluctuation factor with a second preset range value when the fluctuation factor is larger than the first preset range value, wherein the second preset range value represents a safe design margin value of the target converter; and the second sending subunit is used for sending an operation instruction to the target converter when the fluctuation factor is within a second preset range value.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Based on the control method of the converter provided in the above embodiments, based on the same inventive concept, the present embodiment further provides a converter, in which a power quality detection module is arranged, where the power quality detection module is configured to execute the control method of any one of the above converters.
Preferably, the power quality detection module can be used for evaluating the power quality of the power grid independently and is not limited to being used in combination with the converter.
In this embodiment, the converter is used to implement the above embodiments and preferred embodiments, and the description already made is omitted.
Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:
s1, when the target converter is electrified and standby, detecting the fluctuation range and the fluctuation duration of the current power grid parameters;
and S2, controlling the running state of the converter according to the fluctuation range and the fluctuation duration.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Based on the above-mentioned embodiments of the method shown in fig. 2 and the apparatus shown in fig. 4, in order to achieve the above-mentioned object, an electronic device is further provided in an embodiment of the present invention, as shown in fig. 5, which includes a memory 52 and a processor 51, where the memory 52 and the processor 51 are both disposed on a bus 53, the memory 52 stores a computer program, and the processor 51 implements the control method of the converter shown in fig. 2 when executing the computer program.
Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a memory (which can be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling an electronic device (which can be a personal computer, a server, or a network device, etc.) to execute the method according to the implementation scenarios of the present invention.
Optionally, the device may also be connected to a user interface, a network interface, a camera, Radio Frequency (RF) circuitry, sensors, audio circuitry, a WI-FI module, and so forth. The user interface may include a Display screen (Display), an input unit such as a keypad (Keyboard), etc., and the optional user interface may also include a USB interface, a card reader interface, etc. The network interface may optionally include a standard wired interface, a wireless interface (e.g., a bluetooth interface, WI-FI interface), etc.
It will be understood by those skilled in the art that the structure of an electronic device provided in the present embodiment does not constitute a limitation of the physical device, and may include more or less components, or some components in combination, or a different arrangement of components.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for controlling a converter, comprising:
when the target converter is electrified and standby, detecting the fluctuation range and the fluctuation duration of the current power grid parameters;
and controlling the running state of the converter according to the fluctuation range and the fluctuation duration.
2. The method of claim 1, wherein prior to power-up standby of the target converter, the method further comprises:
detecting a first power grid parameter when the power grid side is stable;
and taking the first power grid parameter as a standard value of the power quality of the power grid.
3. The method according to claim 2, wherein the detecting of the first grid parameter at grid side stability comprises at least one of:
detecting a power grid voltage parameter when the power grid side is stable;
detecting a power grid frequency parameter when the power grid side is stable;
detecting a power grid phase parameter when the power grid side is stable;
and detecting a three-phase balance degree parameter when the power grid side is stable.
4. The method of claim 2, wherein controlling the operating state of the target converter based on the fluctuation range and the fluctuation duration comprises:
calculating a fluctuation factor e according to the fluctuation range, the fluctuation duration and the first power grid parameter, wherein the fluctuation factor is calculated by the following formula:
e ═ upper limit of the current grid parameter | -, first fluctuation duration | -, lower limit of the current grid parameter | -, second fluctuation duration }/2;
and controlling the running state of the target converter according to the fluctuation factor.
5. The method of claim 4, wherein controlling the operating state of the target converter in accordance with the ripple factor comprises:
comparing the fluctuation factor with a first preset range value, wherein the first preset range value is used for indicating that the power grid side fluctuation range belongs to a stable range;
and if the fluctuation factor is within the first preset range value, sending an operation instruction to the target converter.
6. The method of claim 5, further comprising:
if the fluctuation factor is larger than the first preset range value, comparing the fluctuation factor with a second preset range value, wherein the second preset range value represents a safe design margin value of the target converter;
and if the fluctuation factor is within the second preset range value, sending an operation instruction to the target converter.
7. A control apparatus for a converter, comprising:
the first detection module is used for detecting the fluctuation range and the fluctuation duration of the current power grid parameters when the target converter is electrified and standby;
and the control module is used for controlling the running state of the converter according to the fluctuation range and the fluctuation duration.
8. A converter, characterized in that a power quality detection module is arranged in the converter, and the power quality detection module is used for executing the converter control method according to any one of claims 1-6.
9. An electronic device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 6 when executing the computer program.
10. A storage medium having a computer program stored thereon, the computer program, when being executed by a processor, realizing the steps of the method of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011379702.7A CN112636564B (en) | 2020-11-30 | 2020-11-30 | Converter control method and device, converter, electronic device and storage medium |
Applications Claiming Priority (1)
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| CN113708403A (en) * | 2021-08-17 | 2021-11-26 | 苏州罗约科技有限公司 | Converter grid-connected control method, system, server and storage medium |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615045A (en) * | 2009-07-29 | 2009-12-30 | 南宁微控技术有限公司 | Stepless phase control compensating-type AC voltage stabilization and regulation device and voltage compensating method thereof |
| EP2341610A2 (en) * | 2009-12-30 | 2011-07-06 | LS Industrial Systems Co., Ltd | Apparatus and method for protecting overvoltage of high voltage inverter |
| CN103259475A (en) * | 2013-04-22 | 2013-08-21 | 华中科技大学 | Doubly fed induction generator internal frequency synchronization method and device based on power balance |
| CN103715656A (en) * | 2012-09-28 | 2014-04-09 | 中国北车集团大同电力机车有限责任公司 | Overvoltage protection device of chopper, chopper and electric locomotive |
| CN105588981A (en) * | 2016-01-13 | 2016-05-18 | 江苏昂内斯电力科技股份有限公司 | Power grid phase-lock method based on low-pass wave trapper |
| CN105760993A (en) * | 2016-02-05 | 2016-07-13 | 国家电网公司 | Multi-source access active power distribution network evaluation method |
| CN205753966U (en) * | 2016-05-16 | 2016-11-30 | 浙江工业大学 | It is applicable to the precharge soft starting circuit of the two-way PWM converter of three-phase voltage type |
| CN109968991A (en) * | 2017-12-27 | 2019-07-05 | 比亚迪股份有限公司 | DC traction power-supply system and its control method for rail traffic |
| CN110365029A (en) * | 2019-07-04 | 2019-10-22 | 北京爱博精电科技有限公司 | The control method and device of energy accumulation current converter, storage medium, electronic device |
| CN110749840A (en) * | 2019-11-27 | 2020-02-04 | 珠海格力电器股份有限公司 | Detection method and device for improving safety of converter and converter |
| CN110800181A (en) * | 2017-06-13 | 2020-02-14 | 乌本产权有限公司 | Method for feeding electric power by means of converter-controlled generator sets, in particular wind turbines |
| CN110838724A (en) * | 2018-08-17 | 2020-02-25 | 北京金风科创风电设备有限公司 | Control method and system for preventing wind power plant from operating in isolated island mode |
-
2020
- 2020-11-30 CN CN202011379702.7A patent/CN112636564B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615045A (en) * | 2009-07-29 | 2009-12-30 | 南宁微控技术有限公司 | Stepless phase control compensating-type AC voltage stabilization and regulation device and voltage compensating method thereof |
| EP2341610A2 (en) * | 2009-12-30 | 2011-07-06 | LS Industrial Systems Co., Ltd | Apparatus and method for protecting overvoltage of high voltage inverter |
| CN103715656A (en) * | 2012-09-28 | 2014-04-09 | 中国北车集团大同电力机车有限责任公司 | Overvoltage protection device of chopper, chopper and electric locomotive |
| CN103259475A (en) * | 2013-04-22 | 2013-08-21 | 华中科技大学 | Doubly fed induction generator internal frequency synchronization method and device based on power balance |
| CN105588981A (en) * | 2016-01-13 | 2016-05-18 | 江苏昂内斯电力科技股份有限公司 | Power grid phase-lock method based on low-pass wave trapper |
| CN105760993A (en) * | 2016-02-05 | 2016-07-13 | 国家电网公司 | Multi-source access active power distribution network evaluation method |
| CN205753966U (en) * | 2016-05-16 | 2016-11-30 | 浙江工业大学 | It is applicable to the precharge soft starting circuit of the two-way PWM converter of three-phase voltage type |
| CN110800181A (en) * | 2017-06-13 | 2020-02-14 | 乌本产权有限公司 | Method for feeding electric power by means of converter-controlled generator sets, in particular wind turbines |
| CN109968991A (en) * | 2017-12-27 | 2019-07-05 | 比亚迪股份有限公司 | DC traction power-supply system and its control method for rail traffic |
| CN110838724A (en) * | 2018-08-17 | 2020-02-25 | 北京金风科创风电设备有限公司 | Control method and system for preventing wind power plant from operating in isolated island mode |
| CN110365029A (en) * | 2019-07-04 | 2019-10-22 | 北京爱博精电科技有限公司 | The control method and device of energy accumulation current converter, storage medium, electronic device |
| CN110749840A (en) * | 2019-11-27 | 2020-02-04 | 珠海格力电器股份有限公司 | Detection method and device for improving safety of converter and converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708403A (en) * | 2021-08-17 | 2021-11-26 | 苏州罗约科技有限公司 | Converter grid-connected control method, system, server and storage medium |
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