Multi-protocol adaptive matching adjustment method and system of intelligent capacitor, and medium

Abstract

The invention relates to the technical field of intelligent capacitors, and discloses a multi-protocol adaptive matching adjustment method and system for an intelligent capacitor, and a medium, and the method comprises the steps: obtaining a plurality of pieces of communication protocol data; determining a communication protocol library through the plurality of pieces of communication protocol data; acquiring user configuration data; and determining the communication protocol data through the user configuration data and the communication protocol library and outputting the communication protocol data. The flexibility of the intelligent capacitor is improved, and the application range of the intelligent capacitor is enlarged.

Description

Technical Field

[0001] This application relates to the technical field of intelligent capacitors, and in particular, to a multi-protocol adaptive matching and adjustment method, system, and medium for intelligent capacitors. Background Art

[0002] Intelligent capacitors are widely used in power systems for reactive power compensation, power factor improvement, etc., and play a crucial role in power systems.

[0003] In related technologies, there is an existing intelligent capacitor that needs to preset a single communication protocol that can match the customer's application scenario according to customer requirements at the time of factory shipment, and the communication protocol cannot be adjusted or switched after leaving the factory. The above-mentioned intelligent capacitor cannot adjust the communication protocol according to the actual application scenario after leaving the factory, resulting in poor flexibility, so there is room for improvement. Summary of the Invention

[0004] In order to improve the flexibility of intelligent capacitors during use, this application provides a multi-protocol adaptive matching and adjustment method, system, and medium for intelligent capacitors.

[0005] A multi-protocol adaptive matching and adjustment method for an intelligent capacitor provided by this application adopts the following technical solutions: A multi-protocol adaptive matching and adjustment method for an intelligent capacitor includes: Obtain multiple communication protocol data; Determine a communication protocol library through the multiple communication protocol data; Obtain user configuration data; Determine the communication protocol data through the user configuration data and the communication protocol library and output it.

[0006] By adopting the above technical solutions, when the intelligent capacitor is applied to the client, since multiple communication protocol data are preset before the intelligent capacitor leaves the factory, and the intelligent capacitor can automatically detect the user configuration data, and then retrieve the communication protocol that matches the user configuration data from the communication protocol library and output it to the client, the intelligent capacitor can adjust the communication protocol according to the actual application scenario, match clients using different communication protocols, and improve the flexibility of the intelligent capacitor during use.

[0007] Optionally, pre-write an adaptive matching program; Automatically detect through the adaptive matching program to obtain detection result data; Determine the used protocol type through the detection result data and a preset protocol type threshold; Determine the communication protocol data through the used protocol type and the communication protocol library and output it.

[0008] By adopting the above technical solution, when the intelligent capacitor matches the communication protocol with the user configuration data, the intelligent capacitor first automatically detects the communication protocol used by the client through the adaptive matching program, and then compares the detected communication protocol result with the preset protocol type threshold to obtain the communication protocol type used by the client. If the communication protocol type used by the client matches one in the communication protocol library, the communication protocol matching the communication protocol type used by the client is output. The adaptive matching program enables the intelligent capacitor to automatically match the corresponding communication protocol according to the communication protocol used by the client and switch the corresponding communication protocol to achieve data transmission with the client, without the user manually selecting the corresponding communication protocol on the client, improving the automation degree of the intelligent capacitor.

[0009] Optionally, the communication protocol data includes, but is not limited to, modbus-rtu communication protocol data and DL / 845 communication protocol data; Determine the communication protocol library through the modbus-rtu communication protocol data and the DL / 845 communication protocol data; Obtain multiple pieces of the user configuration data; Determine the communication protocol data through multiple pieces of the user configuration data and the communication protocol library and output it; If the user configuration data is modbus-rtu communication protocol data and DL / 845 communication protocol data, the modbus-rtu communication protocol data is preferentially output.

[0010] By adopting the above technical solution, when the user configuration data is common for both modbus-rtu communication protocol data and DL / 845 communication protocol data, the adaptive matching program of the intelligent capacitor will preferentially select and output the modbus-rtu communication protocol data to match the user configuration data, and realize data transmission with the client through the modbus-rtu communication protocol data. Through the above priority setting, when both modbus-rtu communication protocol data and DL / 845 communication protocol data can match the communication protocol of the client, the modbus-rtu communication protocol data with a wider application range is preferentially selected. In this way, even if the user configuration data is adjusted during use, the modbus-rtu communication protocol data can match the user configuration data within the largest range, thus reducing the steps of frequently switching communication protocol data and improving the convenience of using the intelligent capacitor.

[0011] Optionally, obtain the voltage data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; Determine the reactive power value through the voltage data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; Determine the adjusted rated power value based on the reactive power value and a preset reactive power threshold; If the reactive power value is greater than the reactive power threshold, output a corresponding adjustment signal to increase the rated power of the intelligent capacitor; If the reactive power value is less than the reactive power threshold, output the corresponding adjustment signal to decrease the rated power of the intelligent capacitor.

[0012] By adopting the above technical solution, the voltage and adjustable internal resistance value of the intelligent capacitor are detected, and then the reactive power value is obtained through calculation. By comparing and judging the reactive power value with the preset reactive power threshold, the adjusted rated power value is determined. When the reactive power value is too large, that is, the reactive power value is greater than the reactive power threshold, the intelligent capacitor automatically outputs an adjustment signal to increase the rated power of the intelligent capacitor; when the reactive power value is less than the reactive power threshold, the intelligent capacitor automatically outputs an adjustment signal to decrease the rated power of the intelligent capacitor, so that the reactive power always remains stable, neither too large nor too small, improving the power factor and working efficiency of the intelligent capacitor, enhancing the stability of the system, and facilitating the normal operation of the equipment.

[0013] Optionally, obtain the current data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; Determine the reactive power value based on the intelligent capacitor current data, adjustable internal resistance data, power factor data, and total power data; Determine the adjusted rated power value based on the reactive power value and a preset reactive power threshold; If the reactive power value is greater than the reactive power threshold, output a corresponding adjustment signal to increase the rated power of the intelligent capacitor; If the reactive power value is less than the reactive power threshold, output the corresponding adjustment signal to decrease the rated power of the intelligent capacitor.

[0014] By adopting the above technical solution, the current value and adjustable internal resistance value of the intelligent capacitor are detected, and then the reactive power value is obtained through calculation. By comparing and judging the reactive power value with the preset reactive power threshold, the rated power value of the intelligent capacitor that needs to be adjusted is determined. When the reactive power value is greater than the preset reactive power value threshold, the intelligent capacitor will automatically output a corresponding adjustment signal to increase the rated power of the intelligent capacitor, thereby reducing the reactive power value of the intelligent capacitor; when the reactive power value is less than the preset reactive power threshold, the intelligent capacitor will automatically output a corresponding adjustment signal to decrease the rated power of the intelligent capacitor, thereby increasing the reactive power value of the intelligent capacitor. By adjusting the reactive power value of the intelligent capacitor through the above method, the reactive power value is not likely to be too large or too small, which is beneficial to the stable operation of the system and extends the service life of the equipment.

[0015] Optionally, if the reactive power value is greater than the reactive power threshold, after outputting a corresponding adjustment signal to increase the rated power of the intelligent capacitor, the following steps are further included: Detect and obtain the reactive power value again; If the reactive power value is still greater than the reactive power threshold, output the corresponding adjustment signal to continuously increase the rated power of the intelligent capacitor; If the reactive power value is less than the reactive power threshold, output the corresponding adjustment signal to decrease the rated power of the intelligent capacitor until the reactive power value is equal to the reactive power threshold.

[0016] By adopting the above technical solution, after the intelligent capacitor outputs an adjustment signal to increase the rated power of the intelligent capacitor, the current value and adjustable internal resistance value of the intelligent capacitor are detected and obtained again, and then the reactive power value of the intelligent capacitor is obtained through calculation. Then, the reactive power value is compared with a preset reactive power threshold to determine the rated power value that needs to be adjusted. When the reactive power value is still greater than the reactive power threshold, the intelligent capacitor will continuously output an adjustment signal to increase the rated power of the intelligent capacitor to reduce the reactive power value of the intelligent capacitor; when the reactive power value is less than the reactive power threshold, the intelligent capacitor will output an adjustment signal to reduce its rated power to increase the reactive power value of the intelligent capacitor. By dynamically adjusting the reactive power value of the intelligent capacitor through the above method, the reactive power value is always maintained at the threshold, thereby making the system highly stable, facilitating the normal operation of the equipment, prolonging the service life of the equipment and improving the safety of equipment use.

[0017] Optionally, obtain the Q value data of the intelligent capacitor and the voltage data of the power system where it is located; Determine the detected capacitance value of the intelligent capacitor through the voltage data of the power system and the Q value data; Obtain the rated capacitance data of the intelligent capacitor; Determine the adjusted rated voltage value by comparing the rated capacitance data with the detected capacitance value; If the detected capacitance value is greater than the rated capacitance data, output a corresponding adjustment signal to increase the rated voltage of the intelligent capacitor; If the detected capacitance value is less than the rated capacitance data, output the corresponding adjustment signal to decrease the rated voltage of the intelligent capacitor.

[0018] By adopting the above technical solution, the Q value of the intelligent capacitor and the voltage value of the power system where the intelligent capacitor is located are detected and obtained. The detected capacitance value of the intelligent capacitor is calculated based on the Q value of the intelligent capacitor and the voltage value of the power system where it is located. The detected capacitance value is compared with the preset rated capacitance data to determine and adjust the rated voltage value of the intelligent capacitor. When the detected capacitance value of the intelligent capacitor is greater than its rated capacitance data, the intelligent capacitor outputs an adjustment signal for increasing the rated voltage of the intelligent capacitor to reduce the detected capacitance of the intelligent capacitor; when the detected capacitance value of the intelligent capacitor is less than its rated capacitance data, the intelligent capacitor outputs an adjustment signal for reducing the rated voltage of the intelligent capacitor to increase the detected capacitance of the intelligent capacitor, so that the detected capacitance value of the intelligent capacitor is maintained at the rated capacitance data, which is beneficial to keeping the voltage and current stable, not easily causing damage to the intelligent capacitor, making the equipment operation more stable, and improving the work efficiency.

[0019] Optionally, if the detected capacitance value is greater than the rated capacitance data, after outputting the corresponding adjustment signal to increase the rated voltage of the intelligent capacitor, it further includes: Detecting and obtaining the detected capacitance value again; If the detected capacitance value is still greater than the rated capacitance data, output the corresponding adjustment signal to continuously increase the rated voltage of the intelligent capacitor; If the detected capacitance value is less than the rated capacitance data, output the corresponding adjustment signal to reduce the rated voltage of the intelligent capacitor until the detected capacitance value is equal to the rated capacitance data.

[0020] By adopting the above technical solution, after the intelligent capacitor outputs an adjustment signal to increase its rated voltage, the Q value data of the intelligent capacitor and the voltage data of the power system where it is located are detected and obtained again. The detected capacitance value of the intelligent capacitor is calculated through the Q value data of the intelligent capacitor and the voltage data of the power system where it is located, and the detected capacitance value is compared with the preset rated capacitance data to obtain the rated voltage value that the intelligent capacitor needs to adjust. When the detected capacitance value is greater than the rated capacitance data, the intelligent capacitor continuously outputs an adjustment signal for increasing its rated voltage to reduce the detected capacitance value of the intelligent capacitor; when the detected capacitance value is less than the rated capacitance data, the intelligent capacitor outputs an adjustment signal for reducing its rated voltage to increase the detected capacitance value of the intelligent capacitor, and repeat the above steps until the detected capacitance value is equal to the rated capacitance data. By continuously adjusting the detected capacitance value through the above method, the detected capacitance value is kept at the rated capacitance data, further improving the working stability of the intelligent capacitor.

[0021] A multi-protocol adaptive matching and adjustment system for an intelligent capacitor provided by this application adopts the following technical solution: A multi - protocol adaptive matching and adjustment system for an intelligent capacitor, comprising: A detection module for detecting the reactive power value in the network where the intelligent capacitor is located.

[0022] A database for storing data, where the data includes the threshold value of the reactive power.

[0023] An adjustment module, according to the detection result of the detection module, calls the reactive power threshold from the database for calculation processing to adjust the rated power of the intelligent capacitor.

[0024] By adopting the above - mentioned technical solution, the reactive power value in the network where the intelligent capacitor is located is obtained through the detection module, the threshold data of the reactive power is stored through the database, and the data in the database is called and calculated through the adjustment module, realizing the automatic judgment of the reactive power of the intelligent capacitor and the output of the control adjustment signal.

[0025] A multi - protocol adaptive matching and adjustment medium for an intelligent capacitor provided by this application adopts the following technical solution: A multi - protocol adaptive matching and adjustment medium for an intelligent capacitor stores a computer program that can be loaded and executed by a processor, such as any one of the multi - protocol adaptive matching and adjustment methods for an intelligent capacitor in claims 1 to 8.

[0026] By adopting the above - mentioned technical solution, the computer program is stored through a computer - readable storage medium.

[0027] In summary, this application includes at least one of the following beneficial technical effects: Compared with the existing intelligent capacitor that only presets one communication protocol, this intelligent capacitor can adapt to multiple usage scenarios, improving the flexibility of use of the intelligent capacitor; It can keep the reactive power value and the detected capacitance value of the intelligent capacitor maintained at the rated value, making the intelligent capacitor operate more stably, not easily causing damage to the intelligent capacitor, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic flowchart of a multi - protocol adaptive matching and adjustment method for an intelligent capacitor in Embodiment 1 of this application.

[0029] Figure 2 is a schematic flowchart of a multi - protocol adaptive matching and adjustment method for an intelligent capacitor in Embodiment 2 of this application.

[0030] Figure 3 is a schematic flowchart of step S3.

[0031] Figure 4 is a schematic flowchart of step S4.

[0032] Figure 5 It is a schematic flow diagram of step S5.

[0033] Figure 6 It is a schematic flow diagram of step S6.

[0034] Figure 7 It is a schematic flow diagram of step S7.

[0035] Figure 8 It is a schematic flow diagram of step S8.

[0036] Figure 9 It is a schematic diagram of the modules of a multi - protocol adaptive matching and adjustment system for an intelligent capacitor in Embodiment 2 of the present application.

[0037] Explanation of reference numerals: 1. Detection module; 2. Database; 3. Adjustment module; 31. Processor. Specific implementation manners

[0038] The following further elaborates on the present application Figures 1-9 with reference to the attached drawings.

[0039] The embodiments of the present application disclose a multi - protocol adaptive matching and adjustment method for an intelligent capacitor. Embodiment

[0040] Referring to Figure 1 , a multi - protocol adaptive matching and adjustment method for an intelligent capacitor includes the following steps: S1. Obtain multiple communication protocol data; S11. Determine a communication protocol library based on the multiple communication protocol data; S12. Obtain user configuration data; S13. Determine and output communication protocol data based on the user configuration data and the communication protocol library.

[0041] Example: Suppose the communication protocol data includes Modbus - RTU communication protocol data and DL / 845 communication protocol data. These different communication protocol data form a communication protocol library. The user configuration data is the data input by the user through a keyboard or other peripheral devices. If the user configuration data is Modbus - RTU communication protocol data, then this user configuration data is compared with the data in the communication protocol library so that the intelligent capacitor also outputs Modbus - RTU communication protocol data; if the user configuration data is DL / 845 communication protocol data, then the intelligent capacitor also outputs DL / 845 communication protocol data.

[0042] The implementation principle of the multi - protocol adaptive matching adjustment method for an intelligent capacitor in Embodiment 1 of this application is as follows: Before the intelligent capacitor leaves the factory, two communication protocol data, namely Modbus - RTU communication protocol data and DL / 845 communication protocol data, are preset, enabling the intelligent capacitor to switch and match the communication protocol according to the usage scenario, thus improving the flexibility of the intelligent capacitor in use.

[0043] Embodiment 1 of this application discloses a computer - readable storage medium.

[0044] A computer - readable storage medium is used to store a computer program capable of being loaded and executed for a multi - protocol adaptive matching adjustment method of an intelligent capacitor.

[0045] Computer - readable storage media include, for example: various media that can store program codes such as USB flash drives, mobile hard disks, read - only memories (ROM), random access memories (RAM), magnetic disks, or optical discs. Embodiment

[0046] Different from Embodiment 1, Embodiment 2 of this application discloses a multi - protocol adaptive matching adjustment method for an intelligent capacitor.

[0047] Refer to Figure 2 A multi - protocol adaptive matching adjustment method for an intelligent capacitor further includes the following steps between step S11 and step S12: S2. Pre - write the adaptive matching program; S21. Automatically detect through the adaptive matching program to obtain detection result data; S22. Determine the used protocol type based on the detection result data and the preset protocol type threshold; S23. Determine the communication protocol data based on the used protocol type and the communication protocol library and output it.

[0048] Example: The adaptive matching program is pre-written into the intelligent capacitor for the user, and then the intelligent capacitor is connected to the circuit. This adaptive matching program will automatically detect the circuit to obtain the detection result data. Suppose the preset protocol types include Modbus-RTU communication protocol data and DL / 845 communication protocol data. The baud rates of the Modbus-RTU communication protocol data are 9600, 19200, and 38400, and the baud rates of the DL / 845 communication protocol data are 9600 and 19200. If the baud rate of the network communication protocol detected by the adaptive matching program is 9600 or 19200, that is, the detection result data is 9600 or 19200, then the adaptive matching program calls the corresponding data from the communication protocol library to automatically output the DL / 845 communication protocol data that matches the network communication protocol; if the baud rate of the network communication protocol detected by the adaptive matching program is 38400, then the adaptive matching program automatically outputs the Modbus-RTU communication protocol data that matches the network communication protocol to achieve the automatic switching of different communication protocol data by the intelligent capacitor without the user manually switching the communication protocol data, improving the working efficiency and usability of the intelligent capacitor.

[0049] Referring to Figure 3 , the following steps are further included between step S22 and step S23: S3. The communication protocol data includes but is not limited to Modbus-RTU communication protocol data and DL / 845 communication protocol data; S31. Determine the communication protocol library through the Modbus-RTU communication protocol data and the DL / 845 communication protocol data; S32. Obtain multiple user configuration data; S33. Determine and output the communication protocol data through the multiple user configuration data and the communication protocol library; S34. If the user configuration data is Modbus-RTU communication protocol data and DL / 845 communication protocol data, then give priority to outputting the Modbus-RTU communication protocol data.

[0050] Example: Suppose the priority data of Modbus-RTU communication protocol data is 2, and the priority data of DL / 845 communication protocol data is 1. If the detection result data detected by the adaptive matching program is Modbus-RTU communication protocol data, then the Modbus-RTU communication protocol data is output; if the detection result data detected by the adaptive matching program is DL / 845 communication protocol data, then the DL / 845 communication protocol data is output; if the detection result data detected by the adaptive matching program is both Modbus-RTU communication protocol data and DL / 845 communication protocol data, since the priority data of Modbus-RTU communication protocol data is 2 and the priority data of DL / 845 communication protocol data is 1, and 2 > 1, so the Modbus-RTU communication protocol data with a wider application range is preferentially output. Even if the user configuration data changes during subsequent use, the Modbus-RTU communication protocol data can still match the user configuration data within the largest range, reducing the possibility of frequent switching of communication protocol data.

[0051] Refer to Figure 4 , after step S13, the following steps are further included: S4. Obtain the voltage data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; S41. Determine the reactive power value based on the voltage data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; S42. Compare and judge the reactive power value with a preset reactive power threshold to determine the adjusted rated power value. If the reactive power value is greater than the reactive power threshold, output a corresponding adjustment signal to increase the rated power of the intelligent capacitor; if the reactive power value is less than the reactive power threshold, output a corresponding adjustment signal to decrease the rated power of the intelligent capacitor.

[0052] Example: When the voltage of the intelligent capacitor is constant, if the voltage data of the intelligent capacitor is U and the adjustable internal resistance data is R, the active power value can be calculated as , if the power factor data is cosφ, the apparent power can be calculated as , and the reactive power value is calculated as . Suppose the reactive power threshold is \(\left [ {2,3} \right ]\) , if the reactive power value is 3.5 > 3, output the corresponding adjustment signal to increase the rated power of the intelligent capacitor; if the reactive power value is 2.5 and 2 < 2.5 < 3, maintain the current state; if the reactive power value is 1.5 < 2, output the corresponding adjustment signal to decrease the rated power of the intelligent capacitor. By dynamically adjusting the reactive power value of the intelligent capacitor in the above method, the reactive power value is maintained at a stable value, reducing the possibility of equipment damage caused by excessive or too small reactive power value, extending the service life of the equipment, and making the system operation more stable.

[0053] Refer to Figure 5 , when the voltage of the intelligent capacitor is not constant and the current is constant, the reactive power value is calculated through the following steps after step S13: S5. Obtain the current data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; S51. Determine the reactive power value through the current data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; S52. Compare and judge the reactive power value with the preset reactive power threshold to determine the rated power value of the intelligent capacitor that needs to be adjusted. If the reactive power value is greater than the reactive power threshold, output the corresponding adjustment signal to increase the rated power of the intelligent capacitor; if the reactive power value is less than the reactive power threshold, output the corresponding adjustment signal to decrease the rated power of the intelligent capacitor.

[0054] Example: When the current of the intelligent capacitor is constant, if the current data of the intelligent capacitor is I and the adjustable internal resistance data is R, the active power value can be calculated as P = I²R. If the power factor data is cosφ, the apparent power can be calculated accordingly , and the reactive power value is calculated . Let the reactive power threshold be \([2, 3]\) , if the reactive power value is 3.5 > 3, output the corresponding adjustment signal to increase the rated power of the intelligent capacitor; if the reactive power value is 2.5 and 2 < 2.5 < 3, maintain the current state; if the reactive power value is 1.5 < 2, output the corresponding adjustment signal to decrease the rated power of the intelligent capacitor.

[0055] Refer to Figure 6 , after step S52, the following steps are further included: S6. Detect and obtain the reactive power value again; S61. If the reactive power value is still greater than the reactive power threshold, output the corresponding adjustment signal to continuously increase the rated power of the intelligent capacitor; S62. If the reactive power value is less than the reactive power threshold, output the corresponding adjustment signal to reduce the rated power of the intelligent capacitor until the reactive power value is equal to the reactive power threshold.

[0056] Example: Let the reactive power threshold be \([2, 3]\). If the adjusted reactive power value is 3.5 > 3, continuously output the corresponding adjustment signal to increase the rated power of the intelligent capacitor; if the adjusted reactive power value is 2.5, and 2 < 2.5 < 3, then maintain the current state; if the reactive power value is 1.5 < 2, output the corresponding adjustment signal to reduce the rated power of the intelligent capacitor until the reactive power value falls within the range of the reactive power threshold.

[0057] Refer to Figure 7 After step S61, the following steps are further included: S7. Obtain the Q - value data of the intelligent capacitor and the voltage data of the power system where it is located; S71. Determine the detected capacitance value of the intelligent capacitor through the voltage data and the Q - value data; S72. Obtain the rated capacitance data of the intelligent capacitor; S73. Determine the adjusted rated voltage value by comparing the rated capacitance data with the detected capacitance value; S74. If the detected capacitance value is greater than the rated capacitance data, output the corresponding adjustment signal to increase the rated voltage of the intelligent capacitor; S75. If the detected capacitance value is less than the rated capacitance data, output the corresponding adjustment signal to reduce the rated voltage of the intelligent capacitor.

[0058] Example: If the Q - value data of the intelligent capacitor is Q1 and the voltage data of the power system where the intelligent capacitor is located is U1, then the detected capacitance value is calculated as If the rated capacitance data of the intelligent capacitor is 2 and the detected capacitance value is 3, output the corresponding adjustment signal to increase the rated voltage of the intelligent capacitor, thereby reducing the detected capacitance value of the intelligent capacitor; if the rated capacitance data of the intelligent capacitor is 2 and the detected capacitance value is 1, output the corresponding adjustment signal to reduce the rated voltage of the intelligent capacitor, thereby increasing the detected capacitance value of the intelligent capacitor. Repeat the above steps until the detected capacitance value of the intelligent capacitor is equal to its rated capacitance data, making the capacitance value of the intelligent capacitor stable, thus making the system operation more stable and reducing the possibility of overheating and damage of the intelligent capacitor due to excessive capacitance value or inability to provide a stable and continuous power supply for the load due to too small capacitance value.

[0059] Refer to Figure 8 After step S74, the following steps are further included: S8. Detect and obtain the detected capacitance value again; S81. If the detected capacitance value is still greater than the rated capacitance data, output the corresponding adjustment signal to continuously increase the rated power of the intelligent capacitor; S82. If the detected capacitance value is less than the rated capacitance data, output the corresponding adjustment signal to reduce the rated voltage of the intelligent capacitor until the detected capacitance value is equal to the rated capacitance data.

[0060] Example: After adjustment, obtain the detected capacitance value again. If the detected capacitance value is 2.5 and the rated capacitance data is 2, continuously output the corresponding adjustment signal to increase the rated voltage of the intelligent capacitor, thereby reducing the detected capacitance value; if the detected capacitance value is 1.5 and the rated capacitance data is 2, continuously output the corresponding adjustment signal to reduce the rated voltage of the intelligent capacitor to increase the detected capacitance value until the detected capacitance value is equal to the rated capacitance data.

[0061] The implementation principle of the multi - protocol adaptive matching adjustment method for an intelligent capacitor in Embodiment 2 of this application is as follows: By presetting an adaptive matching program before the intelligent capacitor leaves the factory, the intelligent capacitor can automatically match the corresponding communication protocol according to the communication protocol of the user - configured data and switch the matched communication protocol for output, without the user manually selecting and switching the corresponding communication protocol, which simplifies the usage steps of the intelligent capacitor and improves its flexibility. In addition, by adjusting the rated power and rated capacitance of the intelligent capacitor, the reactive power value and the detected capacitance value of the intelligent capacitor are maintained at a stable value, making the system operation effect more stable, and the device is not easily damaged due to excessive or too small reactive power value and detected capacitance value.

[0062] Embodiment 2 of this application discloses a multi - protocol adaptive matching adjustment system for an intelligent capacitor.

[0063] Refer to Figure 9, A multi - protocol adaptive matching and adjustment system for an intelligent capacitor includes a detection module 1, a database 2, and an adjustment module 3. The detection module 1 is used to detect the reactive power value in the network where the intelligent capacitor is located and output it to the adjustment module 3 for calculation and processing. In this embodiment, the detection module 1 can adopt devices that directly detect reactive power, such as a power analyzer, etc., or can also adopt devices that indirectly detect reactive power, such as detecting active power, power factor, and total power through devices such as a power factor meter and a wattmeter to calculate the reactive power. The database 2 is used to store data, including various threshold data in this application and log data formed by storing the working state data of the intelligent capacitor. In this embodiment, the threshold data includes reactive power thresholds, etc. The adjustment module 3 is used to receive the reactive power value detected by the detection module 1, and call the reactive power threshold from the database 2 for calculation and processing to determine the rated power that the intelligent capacitor needs to be adjusted, and output a corresponding adjustment signal to adjust the rated power of the intelligent capacitor.

[0064] The adjustment module includes a processor 31. The processor 31 can include a central processing component such as a CPU or MPU, or a host system constructed with a CPU or MPU as the core, including hardware or software. With the processor 31 in the measuring instrument, people can freely control the measuring instrument through programming to make it operate according to people's wishes. The processor 31 can control local quantity transfer, remote quantity transfer, remote communication, etc. through an internal protocol. The internal protocol generally refers to all protocols that achieve mutual communication or connection within the same measuring instrument or the same system, including: part or all of the human - machine interaction protocol, software / hardware (interface) protocol, chip bus (C - Bus) protocol, internal bus (I - Bus) protocol, etc. With the development of integrated circuit technology, some that belong to the external bus (E - Bus) protocol are also classified as internal protocols after being integrated into the chip with the external bus (E - Bus).

[0065] The above are all preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A multi - protocol adaptive matching and adjustment method for an intelligent capacitor, characterized in that: Obtain multiple communication protocol data; Determine a communication protocol library based on the multiple communication protocol data; Obtain user configuration data; Determine the communication protocol data based on the user configuration data and the communication protocol library and output it.

2. The multi - protocol adaptive matching and adjustment method for an intelligent capacitor according to claim 1, characterized in that: Pre - write an adaptive matching program; Automatically detect through the adaptive matching program to obtain detection result data; Determine the used protocol type based on the detection result data and a preset protocol type threshold; Determine the communication protocol data based on the used protocol type and the communication protocol library and output it.

3. The multi - protocol adaptive matching and adjustment method for an intelligent capacitor according to claim 2, characterized in that: The communication protocol data includes, but is not limited to, modbus - rtu communication protocol data and DL / 845 communication protocol data; Determine the communication protocol library based on the modbus - rtu communication protocol data and the DL / 845 communication protocol data; Obtain multiple pieces of the user configuration data; Determine the communication protocol data based on the multiple pieces of the user configuration data and the communication protocol library and output it; If the user configuration data is modbus - rtu communication protocol data and DL / 845 communication protocol data, then preferentially output the modbus - rtu communication protocol data.

4. A multi-protocol adaptive matching and adjustment method for an intelligent capacitor according to claim 1, characterized in that, Including: Obtain the voltage data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; Determine the reactive power value based on the voltage data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; Determine the adjusted rated power value based on the reactive power value and a preset reactive power threshold; If the reactive power value is greater than the reactive power threshold, output a corresponding adjustment signal to increase the rated power of the intelligent capacitor; If the reactive power value is less than the reactive power threshold, output a corresponding adjustment signal to decrease the rated power of the intelligent capacitor.

5. The multi - protocol adaptive matching and adjustment method of an intelligent capacitor according to claim 4, characterized in that, Including: Obtain the current data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; Determine the reactive power value based on the current data, adjustable internal resistance data, power factor data, and total power data of the intelligent capacitor; Determine the adjusted rated power value based on the reactive power value and a preset reactive power threshold; If the reactive power value is greater than the reactive power threshold, output a corresponding adjustment signal to increase the rated power of the intelligent capacitor; If the reactive power value is less than the reactive power threshold, output a corresponding adjustment signal to decrease the rated power of the intelligent capacitor.

6. The multi-protocol adaptive matching and adjustment method of an intelligent capacitor according to claim 5, characterized in that If the reactive power value is greater than the reactive power threshold and a corresponding adjustment signal is output to increase the rated power of the intelligent capacitor, it further includes: Detect again to obtain the reactive power value; If the reactive power value is still greater than the reactive power threshold, output a corresponding adjustment signal to continuously increase the rated power of the intelligent capacitor; If the reactive power value is less than the reactive power threshold, output the corresponding adjustment signal to reduce the rated power of the intelligent capacitor until the reactive power value is equal to the reactive power threshold.

7. A multi-protocol adaptive matching adjustment method for an intelligent capacitor according to claim 1, characterized in that: Obtain the Q value data of the intelligent capacitor and the voltage data of the power system where it is located; Determine the detected capacitance value of the intelligent capacitor through the voltage data of the power system and the Q value data; Obtain the rated capacitance data of the intelligent capacitor; Determine the adjusted rated voltage value by comparing the rated capacitance data with the detected capacitance value; If the detected capacitance value is greater than the rated capacitance data, output the corresponding adjustment signal to increase the rated voltage of the intelligent capacitor; If the detected capacitance value is less than the rated capacitance data, output the corresponding adjustment signal to reduce the rated voltage of the intelligent capacitor.

8. A multi - protocol adaptive matching and adjustment method for an intelligent capacitor according to claim 7, characterized in that, If the detected capacitance value is greater than the rated capacitance data, after outputting the corresponding adjustment signal to increase the rated voltage of the intelligent capacitor, further include: Detect and obtain the detected capacitance value again; If the detected capacitance value is still greater than the rated capacitance data, output the corresponding adjustment signal to continuously increase the rated voltage of the intelligent capacitor; If the detected capacitance value is less than the rated capacitance data, output the corresponding adjustment signal to reduce the rated voltage of the intelligent capacitor until the detected capacitance value is equal to the rated capacitance data.

9. A multi - protocol adaptive matching and adjustment system for an intelligent capacitor, which uses the multi - protocol adaptive matching and adjustment method for an intelligent capacitor according to any one of claims 1 to 8, characterized in that, Comprising: A detection module (1) for detecting the reactive power value in the network where the intelligent capacitor is located; A database (2) for storing data, the data including the threshold of the reactive power; An adjustment module (3) that, according to the detection result of the detection module (1), calls the reactive power threshold from the database (2) for calculation processing to adjust the rated power of the intelligent capacitor.

10. A computer-readable storage medium, characterized in that: A computer program stored that can be loaded and executed by a processor (31) for a multi-protocol adaptive matching adjustment method of an intelligent capacitor according to any one of claims 1 to 8.

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