CN117477754B - Working mode switching method and system for electromagnetic type power quality unified controller - Google Patents
Working mode switching method and system for electromagnetic type power quality unified controller Download PDFInfo
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- CN117477754B CN117477754B CN202311830709.XA CN202311830709A CN117477754B CN 117477754 B CN117477754 B CN 117477754B CN 202311830709 A CN202311830709 A CN 202311830709A CN 117477754 B CN117477754 B CN 117477754B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention discloses a method and a system for switching working modes of an electromagnetic type power quality unified controller, wherein the electromagnetic type power quality unified controller comprises a series reactor, a first switch, a second switch, a pressure-sensitive inductor and a filter, wherein the series reactor is connected in parallel with the first switch and then is connected in series with a three-phase alternating current input side, the pressure-sensitive inductor and the filter are connected in parallel and then form a parallel branch with the second switch, the parallel branch is connected in parallel with a three-phase alternating current output side, and the three-phase alternating current output side is connected with a load, the method comprises the following steps: acquiring the working temperature, parallel branch current, load voltage and load current of a controller; determining a current working mode of the controller; and determining the next working mode of the controller according to the current working mode, the working temperature, the parallel branch current, the load voltage and the load current, and realizing the switching of the working modes of the controller. The invention can reduce the power consumption of the system while ensuring the qualification of the output voltage.
Description
Technical Field
The invention relates to the technical field of electric energy quality control, in particular to a method and a system for switching working modes of an electromagnetic type electric energy quality unified controller.
Background
In the related art, an electromagnetic type power quality unified controller is provided, and the problems of low voltage, overvoltage, unbalanced load, power harmonic pollution and the like of a low-voltage power distribution network are solved by adopting a passive method, so that the electromagnetic type power quality unified controller is excellent in performance and high in reliability.
However, the overvoltage and the low voltage of the user have strong time period, such as strong sunshine in noon and more photovoltaic power generation, the overvoltage phenomenon easily occurs at the moment, the electricity consumption of residents rises at night, the low voltage phenomenon possibly occurs at the moment, and the power supply voltage of other time periods is normal. Therefore, the electromagnetic type power quality unified controller has a limited real effective working time, and if the controller runs on a net for a long time, unnecessary system loss can be brought, and the service life of the system is reduced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present invention is to provide a method for switching operation modes of an electromagnetic power quality unified controller, which can reduce system power consumption while ensuring that output voltage is qualified.
The second object of the present invention is to provide an electromagnetic power quality unified controller operation mode switching system.
A third object of the present invention is to provide a computer-readable storage medium.
A fourth object of the present invention is to provide an electronic device.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The utility model provides a switching method of electromagnetic type electric energy quality unified controller working mode, electromagnetic type electric energy quality unified controller includes series connection reactor, first switch, second switch, pressure sensitive inductance and wave filter, the series connection reactor with the first switch is parallelly connected the back and is established ties in three-phase alternating current input side, pressure sensitive inductance with the wave filter is parallelly connected the back, with the second switch constitutes parallel branch, parallel branch connects in three-phase alternating current output side, three-phase alternating current output side is connected with the load, the method includes:
acquiring the working temperature, parallel branch current, load voltage and load current of a controller;
Determining a current working mode of the controller;
And determining the next working mode of the controller according to the current working mode, the working temperature, the parallel branch current, the load voltage and the load current, and realizing the switching of the working modes of the controller.
Preferably, the working modes of the controller comprise a bypass mode, a serial-throw mode, a parallel-throw mode and a full-throw mode; wherein the first switch is closed, the second switch is opened, and the controller works in a bypass mode; the first switch is disconnected, the second switch is disconnected, and the controller works in a serial-throw mode; the first switch is closed, the second switch is closed, and the controller works in a parallel-throwing mode; the first switch is opened, the second switch is closed, and the controller works in a full-throw mode.
Preferably, the step of determining the next working mode of the controller and implementing the switching of the working modes of the controller includes: when the current working mode is a bypass mode, if the load voltage is smaller than a preset lower limit value, switching to a parallel switching mode; and if the load voltage is greater than the preset upper limit value, switching to a serial-throw mode.
Preferably, when the current working mode is the bypass mode, if the working temperature is greater than a preset temperature, the bypass mode is kept unchanged.
Preferably, the step of determining the next working mode of the controller and implementing the switching of the working modes of the controller includes switching the working modes according to the following condition priorities when the current working mode is a serial mode: if the working temperature is greater than the preset temperature, switching to a bypass mode; if the load voltage is smaller than a preset lower limit value, switching to a bypass mode; if the load current is smaller than a first set value, switching to a bypass mode; if the load current is greater than a second set value, switching to a parallel switching mode; and if the load voltage is greater than the preset upper limit value, switching to a full-throw mode.
Preferably, the step of determining the next working mode of the controller and implementing the switching of the working modes of the controller includes switching the working modes according to the following condition priorities when the current working mode is a parallel mode: if the working temperature is greater than a preset temperature or the parallel branch current is greater than a third set value, switching to a bypass mode; if the load current is smaller than a fourth set value, switching to a bypass mode; if the load current is larger than a second set value, the parallel switching mode is kept unchanged; if the parallel branch circuit outputs inductive current, switching to a full-throw mode; if the load voltage is smaller than a preset lower limit value or larger than a preset upper limit value, switching to a full-throw mode; and if the parallel branch circuit outputs the capacitive current and the capacitive current is larger than a fifth set value, switching to a full-throw mode.
Preferably, the step of determining the next working mode of the controller and implementing the switching of the working mode of the controller includes switching the working mode according to the following condition priority when the current working mode is a full throw mode: if the working temperature is greater than a preset temperature or the parallel branch current is greater than a third set value, switching to a bypass mode; if the load current is greater than a second set value, switching to a parallel switching mode; if the current working mode keeps the full-casting mode for a preset time period and the inductive current is output by the parallel branch circuit, and the inductive current is smaller than a sixth set value, switching to a serial-casting mode; if the current working mode is kept in the full-throw mode for a preset time period, the parallel branch circuit outputs capacitive current, and the load current is smaller than a fourth set value, switching to a bypass mode; and if the current working mode keeps the full-casting mode for a preset time period and the capacitive current is output by the parallel branch circuit, and the capacitive current is smaller than half of a fifth set value, switching to the parallel casting mode.
In order to achieve the above object, a second aspect of the present invention provides an operation mode switching system of an electromagnetic type power quality unifying controller, the electromagnetic type power quality unifying controller includes a series reactor, a first switch, a second switch, a voltage-sensitive inductor and a filter, the series reactor is connected in parallel with the first switch and then connected in series with a three-phase ac input side, the voltage-sensitive inductor is connected in parallel with the filter and then connected in parallel with the second switch to form a parallel branch, the parallel branch is connected in parallel with a three-phase ac output side, and the three-phase ac output side is connected with a load, the system includes:
the acquisition module is used for acquiring the working temperature, parallel branch current, load voltage and load current of the controller;
The determining module is used for determining the current working mode of the controller;
And the switching module is used for determining the next working mode of the controller according to the current working mode, the working temperature, the parallel branch current, the load voltage and the load current and switching the working modes of the controller.
To achieve the above object, a third aspect of the present invention provides a computer readable storage medium having stored thereon an operation mode switching program, which when executed by a processor, implements the above-mentioned operation mode switching method of an electromagnetic power quality unifying controller.
In order to achieve the above object, a fourth aspect of the present invention provides an electronic device, including a memory, a processor, and a working mode switching program stored in the memory and capable of running on the processor, where the working mode switching program is executed by the processor, to implement the above-mentioned working mode switching method of an electromagnetic unified power quality controller.
The invention has at least the following technical effects:
The working mode switching method and the system can ensure that the electromagnetic type power quality unified controller reduces the parts put into operation of the equipment as much as possible on the premise of ensuring that the load voltage meets the requirement, thereby reducing the power consumption of the system, prolonging the working life of the equipment and improving the power supply safety of the system through protecting the setting.
Additional aspects and advantages of the invention 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 invention.
Drawings
Fig. 1 is an equivalent schematic diagram of an electromagnetic power quality unified controller according to an embodiment of the present invention after improvement.
Fig. 2 is a flowchart of a method for switching operation modes of an electromagnetic power quality unified controller according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a controller working mode switching state machine according to an embodiment of the present invention.
Fig. 4 is a block diagram of a working mode switching system of an electromagnetic power quality unified controller according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of the physical structure of an electronic device according to an embodiment of the invention.
Detailed Description
The present embodiment is described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
An operation mode switching method and system of the electromagnetic type unified power quality controller of the present embodiment are described below with reference to the accompanying drawings.
In order to realize the division of the working modes of the electromagnetic type power quality unified controller, the scheme of the electromagnetic type power quality unified controller in the prior art is improved, an equivalent schematic diagram of the improved scheme is shown in fig. 1, the improved electromagnetic type power quality unified controller comprises a series reactor L1, a first switch K1, a second switch K2, a pressure-sensitive inductor L2 and a filter S, the series reactor L1 is connected in parallel with the first switch K1 and then is connected in series with a three-phase alternating current input side, the pressure-sensitive inductor L2 is connected in parallel with the filter S and then is connected in parallel with the second switch K2 to form a parallel branch, the parallel branch is connected in parallel with a three-phase alternating current output side, and the three-phase alternating current output side is connected with a load.
Fig. 2 is a flowchart of a method for switching operation modes of an electromagnetic power quality unified controller according to an embodiment of the present invention. As shown in fig. 2, the method includes:
Step S1: and acquiring the working temperature, parallel branch current, load voltage and load current of the controller.
Step S2: a current operating mode of the controller is determined.
In this embodiment, the working modes of the controller may be divided into the following four working modes according to different on-off combinations of the two switches:
(1) Bypass mode: the first switch K1 is closed and the second switch K2 is opened. In this mode, the series reactor L1 and the components on the parallel branch are all deactivated, i.e. the input and output are shorted.
(2) Serial projection mode: the first switch K1 is turned off and the second switch K2 is turned off. In this mode, series reactor L1 is put into operation, and the components on the parallel branch are taken out of operation.
(3) And casting mode: the first switch K1 is closed and the second switch K2 is closed. In this mode, the series reactor L1 is short-circuited and is deactivated, and the components on the parallel branch are put into operation.
(4) Full throw mode: the first switch K1 is opened and the second switch K2 is closed. In the modified mode, the series reactor L1 and the components on the parallel branch are all put into operation.
Wherein, the first switch K1 and the second switch K2 may be controllable switches such as contactors.
It should be noted that, before the controller operation mode is switched, the current operation mode of the controller needs to be determined.
Step S3: and determining the next working mode of the controller according to the current working mode, the working temperature, the parallel branch current, the load voltage and the load current, and realizing the switching of the working modes of the controller.
In this embodiment, the controller may be switched according to the above mode division and then combine the above data to implement the switching of the working mode, where the state machine for switching the working mode is shown in fig. 3.
The step of determining the next working mode of the controller and realizing the switching of the working modes of the controller comprises the following steps: when the current working mode is a bypass mode, if the load voltage is smaller than a preset lower limit value, switching to a parallel switching mode; if the load voltage is greater than the preset upper limit value, switching to the serial-on mode. In addition, if the working temperature is higher than the preset temperature, the bypass mode is kept unchanged.
Specifically, when the controller is in the bypass mode, the load voltage generally meets the requirements, and as the load changes, the load voltage gradually increases or decreases. At this time, if the load voltage is smaller than the preset lower limit value, switching to the parallel switching mode, namely controlling the first switch K1 to be closed and controlling the second switch K2 to be closed; if the load voltage is greater than the preset upper limit value, the series switching mode is switched to, namely the first switch K1 is controlled to be switched off, and the second switch K2 is controlled to be switched off. And when overheat protection is carried out, namely when the working temperature of the controller is detected to be higher than the preset temperature, the bypass mode is kept unchanged.
Further, when the current working mode of the controller is the serial-throw mode, the working mode can be switched according to the following condition priority:
(1) If the working temperature is higher than the preset temperature, the control device is switched to a bypass mode, namely when the system is overheated, the control device is controlled to be switched to the bypass mode.
(2) And if the load voltage is smaller than the preset lower limit value, switching to a bypass mode.
(3) If the load current is smaller than the first set value, switching to the bypass mode, wherein the first set value is the load current set value for switching the serial mode to the bypass mode, namely, if the load current is smaller than the set value 10 minutes after the completion of the switching of the bypass mode, switching to the bypass mode.
(4) If the load current is greater than the second set value, switching to the parallel operation mode, wherein the second set value is a set value for detecting the overcurrent of the load current, namely switching to the parallel operation mode when the load overcurrent occurs.
(5) If the load voltage is greater than the preset upper limit value, switching to the full-throw mode.
Further, when the current working mode is the parallel operation mode, the working mode is switched according to the following condition priority:
(1) If the working temperature is higher than the preset temperature or the parallel branch current is higher than a third set value, switching to a bypass mode, wherein the third set value is a set value for detecting the parallel branch current overcurrent, namely, switching to the bypass mode when the system is overheated or the parallel branch current overcurrent.
(2) If the load current is smaller than the fourth set value, switching to the bypass mode, wherein the fourth set value is the load current set value for switching the parallel operation mode to the bypass mode, and if the load current is smaller than the set value 10 minutes after the parallel operation mode switching is completed, switching to the bypass mode.
(3) If the load current is larger than the second set value, the parallel switching mode is kept unchanged, namely, when the load is over-current, the parallel switching mode is kept unchanged.
(4) If the parallel branch circuit outputs inductive current, the parallel branch circuit is switched to a full-throw mode, namely, when the parallel branch circuit is the inductive current, the parallel branch circuit is switched to the full-throw mode, wherein the inductive current is the current advanced by 90 degrees relative to the corresponding voltage.
(5) If the load voltage is smaller than the preset lower limit value or larger than the preset upper limit value, the full-throw mode is switched, namely, when the load voltage is higher than the upper limit value or lower limit value, the full-throw mode is switched.
(6) If the parallel branch circuit outputs the capacitive current, and the capacitive current is larger than a fifth set value, switching to a full-throw mode, wherein the capacitive current is a current with 90 degrees of delay corresponding to the voltage, the fifth set value is a capacitive current set value for switching the parallel-throw mode to the full-throw mode, namely switching to the full-throw mode when the parallel branch circuit current is the capacitive current and the capacitive current is larger than the set value.
Further, when the current working mode is the full-throw mode, switching the working mode according to the following condition priority:
(1) If the working temperature is higher than the preset temperature or the parallel branch current is higher than the third set value, switching to the bypass mode, namely when the system is overheated or the parallel branch is overcurrent, switching to the bypass mode.
(2) If the load current is greater than the second set value, switching to the parallel switching mode, namely switching to the parallel switching mode when the load is over-current.
(3) If the current working mode keeps the full-throw mode for a preset time period and the parallel branch circuit outputs inductive current, the inductive current is smaller than a sixth set value, the serial-throw mode is switched to, wherein the sixth set value is the inductive current set value for switching the full-throw mode to the serial-throw mode, namely, when the full-throw mode is entered for more than 10 minutes, the parallel branch circuit outputs inductive current, and the inductive current is smaller than the set value, the serial-throw mode is switched to.
(4) If the current working mode keeps the full-throw mode for a preset time period, the parallel branch circuit outputs capacitive current, and the load current is smaller than a fourth set value, the switching to the bypass mode is performed, namely the full-throw mode is entered for more than 10 minutes, the parallel branch circuit outputs the capacitive current, and the load current is smaller than the set value, and the switching to the bypass mode is performed.
(5) If the current working mode keeps the full-throw mode for a preset time period and the parallel branch circuit outputs capacitive current which is less than half of the fifth set value, switching to the parallel throw mode, namely entering the full-throw mode for more than 10 minutes, and switching to the parallel throw mode when the parallel branch circuit outputs capacitive current which is less than 50% of the fifth set value.
Fig. 4 is a block diagram of a working mode switching system of an electromagnetic power quality unified controller according to an embodiment of the present invention. The electromagnetic type electric energy quality unified controller is shown in fig. 1, and comprises a series reactor, a first switch, a second switch, a pressure-sensitive inductor and a filter, wherein the series reactor is connected with the first switch in parallel and then is connected with a three-phase alternating current input side in series, the pressure-sensitive inductor and the filter are connected in parallel and then form a parallel branch with the second switch, the parallel branch is connected with a three-phase alternating current output side in parallel, and the three-phase alternating current output side is connected with a load.
As shown in fig. 4, the electromagnetic power quality unified controller operation mode switching system 100 includes an acquisition module 10, a determination module 20 and a switching module 30, wherein the acquisition module 10 and the determination module 20 are respectively connected with the switching module 30. The acquisition module 10 is configured to acquire an operating temperature, a parallel-arm current, a load voltage, and a load current of the controller, the determination module 20 is configured to determine a current operating mode of the controller, and the switching module 30 is configured to determine a next operating mode of the controller according to the current operating mode, the operating temperature, the parallel-arm current, the load voltage, and the load current, and perform switching of the operating modes of the controller.
In one embodiment of the invention, the working modes of the controller comprise a bypass mode, a serial-throw mode, a parallel-throw mode and a full-throw mode; wherein the first switch is closed, the second switch is opened, and the controller works in a bypass mode; the first switch is disconnected, the second switch is disconnected, and the controller works in a serial-throw mode; the first switch is closed, the second switch is closed, and the controller works in a parallel-on mode; the first switch is opened, the second switch is closed, and the controller works in a full-throw mode.
In one embodiment of the present invention, the switching module 30 is specifically configured to switch to the parallel operation mode if the load voltage is less than the preset lower limit value when the current operation mode is the bypass mode; if the load voltage is greater than the preset upper limit value, switching to the serial-on mode. When the current working mode is the bypass mode, if the working temperature is higher than the preset temperature, the bypass mode is kept unchanged.
In one embodiment of the present invention, the switching module 30 is specifically configured to switch the operation modes according to the following condition priority when the current operation mode is the serial mode:
If the working temperature is higher than the preset temperature, switching to a bypass mode; if the load voltage is smaller than the preset lower limit value, switching to a bypass mode; if the load current is smaller than the first set value, switching to a bypass mode; if the load current is greater than the second set value, switching to a parallel switching mode; if the load voltage is greater than the preset upper limit value, switching to the full-throw mode.
In one embodiment of the present invention, the switching module 30 is specifically configured to switch the operation modes according to the following condition priority when the current operation mode is the parallel operation mode:
If the working temperature is greater than the preset temperature or the parallel branch current is greater than a third set value, switching to a bypass mode; if the load current is smaller than the fourth set value, switching to a bypass mode; if the load current is greater than the second set value, the parallel switching mode is kept unchanged; if the parallel branch circuit outputs inductive current, switching to a full-throw mode; if the load voltage is smaller than the preset lower limit value or larger than the preset upper limit value, switching to a full-throw mode; and if the parallel branch circuit outputs the capacitive current and the capacitive current is larger than a fifth set value, switching to a full-throw mode.
In one embodiment of the present invention, the switching module 30 is specifically configured to switch the operation modes according to the following condition priority when the current operation mode is the full throw mode:
If the working temperature is greater than the preset temperature or the parallel branch current is greater than a third set value, switching to a bypass mode; if the load current is greater than the second set value, switching to a parallel switching mode; if the current working mode keeps the full-casting mode for a preset time period and the parallel branch circuit outputs inductive current, the inductive current is smaller than a sixth set value, switching to the serial-casting mode; if the current working mode is kept in the full-throw mode for a preset time period and the parallel branch circuit outputs capacitive current, the load current is smaller than a fourth set value, switching to a bypass mode; and if the current working mode keeps the full-casting mode for a preset time period and the parallel branch circuit outputs capacitive current which is less than half of the fifth set value, switching to the parallel casting mode.
It should be noted that, for avoiding redundancy, the specific implementation of the working mode switching system of the electromagnetic type power quality unified controller in the embodiment of the present invention may refer to the specific implementation of the working mode switching method of the electromagnetic type power quality unified controller described above, which is not described herein.
In summary, the working mode switching method and the system can enable the electromagnetic type power quality unified controller to reduce the parts put into operation as much as possible on the premise of ensuring that the load voltage meets the requirement, thereby reducing the power consumption of the system, prolonging the working life of the device and improving the power supply safety of the system through the protection setting.
Furthermore, the invention also provides a computer readable storage medium, on which a working mode switching program is stored, which can implement the above-mentioned working mode switching method of the electromagnetic power quality unified controller when the working mode switching program is executed by a processor.
Fig. 5 illustrates a physical structure diagram of an electronic device. As shown in fig. 5, the electronic device may include: processor 210, communication interface (Communications Interface) 220, memory 230, and communication bus 240, wherein processor 210, communication interface 220, memory 230 complete communication with each other through communication bus 240. Processor 210 may invoke the operating mode switching program in memory 230 to implement the electromagnetic power quality unified controller operating mode switching method described above.
Further, the logic instructions in the memory 230 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a switching method of electromagnetic type electric energy quality unified controller mode, its characterized in that, electromagnetic type electric energy quality unified controller includes series connection reactor, first switch, second switch, pressure sensitive inductance and wave filter, the series connection reactor with after the first switch is parallelly connected establish ties in three-phase alternating current input side, pressure sensitive inductance with after the wave filter is parallelly connected, with the series connection of second switch constitutes parallel branch, parallel branch connects in three-phase alternating current output side, three-phase alternating current output side is connected with the load, the method includes:
acquiring the working temperature, parallel branch current, load voltage and load current of a controller;
Determining a current working mode of the controller;
And determining the next working mode of the controller according to the current working mode, the working temperature, the parallel branch current, the load voltage and the load current, and realizing the switching of the working modes of the controller.
2. The method for switching an operation mode of an electromagnetic power quality unified controller according to claim 1, wherein the operation modes of the controller include a bypass mode, a serial-on mode, a parallel-on mode and a full-on mode; wherein,
The first switch is closed, the second switch is opened, and the controller works in a bypass mode; the first switch is disconnected, the second switch is disconnected, and the controller works in a serial-throw mode; the first switch is closed, the second switch is closed, and the controller works in a parallel-throwing mode; the first switch is opened, the second switch is closed, and the controller works in a full-throw mode.
3. The method for switching operation modes of an electromagnetic power quality control unit according to claim 2, wherein the step of determining a next operation mode of the controller and performing switching of the operation modes of the controller comprises:
When the current working mode is a bypass mode, if the load voltage is smaller than a preset lower limit value, switching to a parallel switching mode; and if the load voltage is greater than the preset upper limit value, switching to a serial-throw mode.
4. The method for switching an operation mode of an electromagnetic power quality control unit according to claim 3, wherein when the current operation mode is a bypass mode, if the operation temperature is greater than a preset temperature, the bypass mode is maintained unchanged.
5. The method for switching operation modes of an electromagnetic unified power quality controller according to claim 2 wherein the step of determining a next operation mode of the controller and implementing the switching of operation modes of the controller comprises switching operation modes according to the following condition priorities when the current operation mode is a serial-on mode:
if the working temperature is greater than the preset temperature, switching to a bypass mode;
If the load voltage is smaller than a preset lower limit value, switching to a bypass mode;
if the load current is smaller than a first set value, switching to a bypass mode;
If the load current is greater than a second set value, switching to a parallel switching mode;
and if the load voltage is greater than the preset upper limit value, switching to a full-throw mode.
6. The method for switching operation modes of an electromagnetic unified power quality controller according to claim 2 wherein the step of determining a next operation mode of the controller and implementing the switching of operation modes of the controller comprises switching operation modes according to the following condition priorities when the current operation mode is a parallel operation mode:
if the working temperature is greater than a preset temperature or the parallel branch current is greater than a third set value, switching to a bypass mode;
If the load current is smaller than a fourth set value, switching to a bypass mode;
if the load current is larger than a second set value, the parallel switching mode is kept unchanged;
if the parallel branch circuit outputs inductive current, switching to a full-throw mode;
If the load voltage is smaller than a preset lower limit value or larger than a preset upper limit value, switching to a full-throw mode;
And if the parallel branch circuit outputs the capacitive current and the capacitive current is larger than a fifth set value, switching to a full-throw mode.
7. The method for switching operation modes of an electromagnetic unified power quality controller according to claim 2 wherein the step of determining a next operation mode of the controller and implementing the switching of operation modes of the controller comprises switching operation modes according to the following condition priorities when the current operation mode is a full-throw mode:
if the working temperature is greater than a preset temperature or the parallel branch current is greater than a third set value, switching to a bypass mode;
If the load current is greater than a second set value, switching to a parallel switching mode;
If the current working mode keeps the full-casting mode for a preset time period and the inductive current is output by the parallel branch circuit, and the inductive current is smaller than a sixth set value, switching to a serial-casting mode;
If the current working mode is kept in the full-throw mode for a preset time period, the parallel branch circuit outputs capacitive current, and the load current is smaller than a fourth set value, switching to a bypass mode;
And if the current working mode keeps the full-casting mode for a preset time period and the capacitive current is output by the parallel branch circuit, and the capacitive current is smaller than half of a fifth set value, switching to the parallel casting mode.
8. The utility model provides an electromagnetic type electric energy quality unified controller mode switching system, its characterized in that, electromagnetic type electric energy quality unified controller includes series connection reactor, first switch, second switch, pressure sensitive inductance and wave filter, the series connection reactor with the series connection is at three-phase AC input side after the first switch is parallelly connected, pressure sensitive inductance with the wave filter is parallelly connected after, with the series connection of second switch constitutes parallel branch, parallel branch connects at three-phase AC output side, three-phase AC output side is connected with the load, the system includes:
the acquisition module is used for acquiring the working temperature, parallel branch current, load voltage and load current of the controller;
The determining module is used for determining the current working mode of the controller;
And the switching module is used for determining the next working mode of the controller according to the current working mode, the working temperature, the parallel branch current, the load voltage and the load current and switching the working modes of the controller.
9. A computer-readable storage medium having stored thereon an operation mode switching program, wherein the operation mode switching program, when executed by a processor, implements the electromagnetic power quality unifying controller operation mode switching method according to any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor and an operating mode switching program stored on the memory and operable on the processor, wherein the processor implements the method for switching operating modes of the unified electromagnetic power quality controller according to any one of claims 1 to 7 when executing the operating mode switching program.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012018495B3 (en) * | 2012-09-17 | 2013-12-19 | Vermot AG | Method of compensating for inductive reactive current and reactive power of electrical load involves operating detector circuits such that switching time dot takes place precisely in zero crossover of voltage/current to neutral |
| CN108242813A (en) * | 2018-02-02 | 2018-07-03 | 山东电力设备有限公司 | The energy router and its control method of power quality harnessed synthetically and power optimization |
| KR20200098924A (en) * | 2019-02-13 | 2020-08-21 | 목포대학교산학협력단 | Hybrid power quality compensation device |
| CN112234624A (en) * | 2020-09-30 | 2021-01-15 | 苏州爱科赛博电源技术有限责任公司 | Method for quickly switching main bypass of active voltage quality controller |
| CN116826761A (en) * | 2023-08-28 | 2023-09-29 | 武汉中楚柏泰智能科技有限公司 | Electromagnetic type electric energy quality unified controller |
-
2023
- 2023-12-28 CN CN202311830709.XA patent/CN117477754B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012018495B3 (en) * | 2012-09-17 | 2013-12-19 | Vermot AG | Method of compensating for inductive reactive current and reactive power of electrical load involves operating detector circuits such that switching time dot takes place precisely in zero crossover of voltage/current to neutral |
| CN108242813A (en) * | 2018-02-02 | 2018-07-03 | 山东电力设备有限公司 | The energy router and its control method of power quality harnessed synthetically and power optimization |
| KR20200098924A (en) * | 2019-02-13 | 2020-08-21 | 목포대학교산학협력단 | Hybrid power quality compensation device |
| CN112234624A (en) * | 2020-09-30 | 2021-01-15 | 苏州爱科赛博电源技术有限责任公司 | Method for quickly switching main bypass of active voltage quality controller |
| CN116826761A (en) * | 2023-08-28 | 2023-09-29 | 武汉中楚柏泰智能科技有限公司 | Electromagnetic type electric energy quality unified controller |
Non-Patent Citations (1)
| Title |
|---|
| 统一电能质量调节器的研究综述;吴姗姗;李金鹏;闫陆;;广东电力;20140125(第01期);全文 * |
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