A power-on buffer control system and method

Abstract

This invention relates to a power-on buffer control system and method. The control system is applied to a driver and includes a control module and a buffer module, a data acquisition module, and a display module connected to the control module. The data acquisition module collects operating data information during the driver's power-on process and sends the operating data information to the control module. The display module displays a scene selection interface and sends a scene selection signal to the control module. The control module controls the buffer module based on the received operating data information and scene selection signal. Therefore, this invention can select a scene according to the driver's required application scenario and control the buffer module accordingly based on the selected application scenario and the collected operating data information to meet the driver's application scenario requirements and improve the user experience.

Description

Technical Field

[0001] The present invention relates to the field of driver technology, and in particular to a power-on buffer control system and method. Background Technology

[0002] A driver is a controller used to control a servo motor, primarily used in high-precision positioning systems. It typically controls the servo motor through three methods: position, speed, and torque, achieving high-precision positioning of the transmission system. With the increasing level of industrial automation, the application of drivers is becoming more and more widespread.

[0003] Currently, a buffer module is usually connected between the rectifier module and the energy storage module in the driver. The buffer module usually consists of a buffer resistor and a control switch connected in parallel. When the driver is powered on, the control switch is opened, and the buffer resistor causes the voltage across the energy storage module to rise slowly. When the voltage reaches the set threshold, the control switch is closed, short-circuiting the power-on buffer resistor and completing the power-on process.

[0004] Because the application environments of the driver are different, some applications require a short power-on time, while others require a longer power-on time. The existing power-on buffer control method cannot meet the needs of different application scenarios, thus reducing the user experience. Summary of the Invention

[0005] In view of this, in order to solve the technical problem that the existing power-on buffer control method cannot meet the needs of different application scenarios and results in a poor user experience, the present invention provides a power-on buffer control system and method.

[0006] In a first aspect, embodiments of the present invention provide a power-on buffer control system applied to a driver, the control system comprising: a control module, a buffer module, a data acquisition module, and a display module;

[0007] The buffer module, the data acquisition module, and the display module are all connected to the control module.

[0008] The data acquisition module is used to collect the operating data information during the power-on process of the driver and send the operating data information to the control module;

[0009] The display module is used to display the scene selection interface and send the scene selection signal to the control module;

[0010] The control module is used to control the buffer module based on the received operating data information and the scene selection signal.

[0011] In one optional implementation, the buffer module includes: a buffer resistor, a first control switch, and a second control switch;

[0012] The first end of the buffer resistor is connected to the first end of the first control switch, the second end of the buffer resistor is connected to the first end of the second control switch, and the second end of the first control switch is connected to the second end of the second control switch.

[0013] The control module is used to control the closing or opening of the first control switch and the closing or opening of the second control switch based on the received operating data information and the scene selection signal.

[0014] In an optional implementation, the control system further includes: a protection module;

[0015] The protection module is connected between the energy storage module and the inverter module in the driver, and the protection module is also connected to the control module;

[0016] Specifically, when the protection module receives a protection control signal sent by the control module, it disconnects the connection between the energy storage module and the inverter module; and when the protection module receives a stop protection control signal sent by the control module, it connects the connection between the energy storage module and the inverter module.

[0017] In an optional implementation, the control system further includes: an alarm module.

[0018] The alarm module is connected to the control module;

[0019] The alarm module provides an alarm notification when it receives an alarm control signal from the control module.

[0020] Secondly, embodiments of the present invention provide a power-on buffer control method, applied to the power-on buffer control system described above, the control method comprising:

[0021] When power-on is determined, the control module determines the preset control conditions corresponding to the target scene information and the control buffer module is in the first state. The target scene information is determined by the control module according to the scene selection signal sent by the display module. The scene selection signal is generated by the display module detecting the trigger operation for the scene selection interface.

[0022] The control module acquires the operating data information of the driver during the power-on process collected by the data acquisition module;

[0023] When the control module determines that the preset control conditions are met based on the operating data information, the control module controls the buffer module to switch from the first state to the second state to complete the power-on.

[0024] In one optional implementation, the target scene information is first scene information, and the operating data information includes the first input voltage value of AC power and the first output voltage value of the energy storage module;

[0025] The control module determines whether the preset control conditions are met based on the operating data information, including:

[0026] The power-on buffer threshold is determined based on the first input voltage value and the first preset threshold.

[0027] When the first output voltage value reaches the power-on buffer threshold, it is determined that the preset control condition is met.

[0028] In an optional implementation, when the power-on buffer control system includes a protection module and the target scenario information is the first scenario information, after executing the step of the control module controlling the buffer module to switch from the first state to the second state, the method further includes:

[0029] The control module receives the second output voltage value of the energy storage module acquired by the data acquisition module, and the second output voltage value represents the peak voltage value;

[0030] When the control module determines that the second output voltage value has reached the second preset threshold, the control module sends a protection control signal to the protection module to disconnect the energy storage module from the inverter module.

[0031] In an optional implementation, after the step of the control module controlling the protection module to disconnect the connection between the energy storage module and the inverter module is performed, the method further includes:

[0032] The control module adjusts the first preset threshold by decreasing it according to a first preset rule in order to update the first preset threshold;

[0033] The control module sends a stop protection control signal to the protection module, so that the protection module can connect the energy storage module and the inverter module.

[0034] The control module performs the step of determining the preset control conditions corresponding to the target scene information and the control buffer module being in the first state based on the updated first preset threshold.

[0035] In one optional implementation, the target scene information is second scene information, and the data information includes the second input voltage value of the AC power and the third output voltage value of the energy storage module;

[0036] The control module determines whether the preset control conditions are met based on the operating data information, including:

[0037] Determine the balance voltage value based on the second input voltage value;

[0038] If the third output voltage value does not change within a preset time period and the absolute value of the difference between the third output voltage value and the balanced voltage value is less than or equal to the second preset threshold, then the preset control condition is determined to be met.

[0039] In an optional implementation, when the power-on buffer control system includes an alarm module, the method further includes:

[0040] If the third output voltage value does not change within the preset time period, but the absolute value of the difference between the third output voltage value and the balanced voltage value is greater than the second preset threshold, then the control module sends an alarm control signal to the alarm module to provide an alarm prompt.

[0041] In an optional implementation, the control module determines the preset control conditions corresponding to the target scene information, including:

[0042] The control module determines the preset control conditions corresponding to the target scene information from the preset association relationship, which stores multiple sets of scene information and preset control conditions correspondence.

[0043] In an optional implementation, the method further includes:

[0044] After power-on is completed, the control module determines the target power-on duration;

[0045] When the control module determines that the target power-on duration is greater than the third preset threshold, the control module increases the first preset threshold according to the second preset rule to update the first preset threshold.

[0046] Upon the next power-on, the control module executes the steps of determining the preset control conditions corresponding to the target scene information and the control buffer module being in the first state, based on the updated first preset threshold.

[0047] In an optional implementation, when the buffer module includes a first control switch, a buffer resistor, and a second control switch, the first state includes:

[0048] The first control switch is closed and the second control switch is open;

[0049] The second state includes:

[0050] The first control switch is open and the second control switch is closed.

[0051] This invention provides a power-on buffer control system applied to a driver. The control system includes a control module and a buffer module, a data acquisition module, and a display module connected to the control module. The data acquisition module collects operating data information during the driver's power-on process and sends the operating data information to the control module. The display module displays a scene selection interface and sends a scene selection signal to the control module. The control module controls the buffer module based on the received operating data information and the scene selection signal. Through this method, this invention can select a scene according to the driver's required application scenario and control the buffer module accordingly based on the selected application scenario and the collected operating data information, thereby meeting the needs of the driver's application scenario and improving the user experience. Attached Figure Description

[0052] Figure 1 A schematic diagram of the structure of a driver provided in an embodiment of the present invention;

[0053] Figure 2 This is a schematic diagram of a power-on buffer control system provided in an embodiment of the present invention;

[0054] Figure 3 A flowchart illustrating a power-on buffer control method provided in an embodiment of the present invention;

[0055] Figure 4 A flowchart illustrating another power-on buffer control method provided in an embodiment of the present invention;

[0056] Figure 5 A schematic diagram of the power-on buffer process of a control method corresponding to a first scenario provided in an embodiment of the present invention;

[0057] Figure 6 A schematic diagram of the power-on buffering process of a control method corresponding to a second scenario provided in an embodiment of the present invention;

[0058] Figure 7 A schematic diagram of a parameter threshold adjustment process provided in an embodiment of the present invention;

[0059] In the attached diagrams above:

[0060] 10. AC power; 20. Rectifier module; 30. Buffer module; 301. Buffer resistor; 302. First control switch; 303. Second control switch; 40. Energy storage module; 50. Protection module; 60. Inverter module; 70. Load; 80. Alarm module; 90. Data acquisition module; 901. First voltage detection unit; 902. Second voltage detection unit; 903. Temperature detection unit; 100. Control module; 110. Display module. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of the present invention.

[0063] refer to Figure 1 , Figure 1 This is a schematic diagram of a driver provided in an embodiment of the present invention. The driver includes: a rectifier module 10, an energy storage module 40, a buffer module 30, and an inverter module 60. The input terminal of the rectifier module 10 is connected to the AC power supply 10, the output terminal of the rectifier module 10 is connected to the input terminal of the buffer module 30, the output terminal of the buffer module 30 is connected to the input terminal of the energy storage module 40, the output terminal of the energy storage module 40 is connected to the input terminal of the inverter module 60, and the output terminal of the inverter module 60 is connected to the load 70. The buffer module 30 is controlled by a power-on buffer control system, as described below; details are not repeated here. In this embodiment, by connecting the buffer module 30 to the driver, damage to the driver from current during power-on can be reduced.

[0064] refer to Figure 2 , Figure 2 This is a schematic diagram of a power-on buffer control system provided in an embodiment of the present invention. The power-on buffer control system provided in this embodiment of the present invention is applied to the driver described above. The power-on buffer control system includes: a control module 100, a buffer module 30, a data acquisition module 90, a display module 110, an alarm module 80, and a protection module 50. The control module 100 is connected to the buffer module 30, the data acquisition module 90, the display module 110, the alarm module 80, and the protection module 50, respectively.

[0065] The control module 100 is used to control the buffer module 30, the alarm module 80, and the protection module 50 based on the control signals sent by the receiving display module 110 and the operating data information collected by the data acquisition module 90.

[0066] The buffer module 30 is used to reduce the damage to the driver caused by current during power-up. The buffer module 30 includes a buffer resistor 301, a first control switch 302, and a second control switch 303. The first end of the buffer resistor 301 is connected to the first end of the first control switch 302, and the second end of the buffer resistor 301 is connected to the first end of the second control switch 303. The second ends of the first control switch 302 and the second control switch 303 are also connected. In this embodiment, the first control switch 302 can be a relay or contactor, and similarly, the second control switch 303 can also be a relay or contactor. The specific forms of the first and second control switches 302 and 303 can be selected according to actual needs, and are not specifically limited in this embodiment. The first control switch 302 is normally open, and the second control switch 303 is normally closed.

[0067] The data acquisition module 90 is used to acquire operational data information during the power-on process of the driver. Specifically, the data acquisition module 90 sends the acquired operational data information to the control module 100, so that the control module 100 controls the first control switch 302 and the second control switch 303 to operate based on the received operational data information (i.e., the control module 100 controls the first control switch 302 to close or open and the control module 100 controls the second control switch 303 to close or open). In this embodiment, the data acquisition module 90 includes a first voltage detection unit 901 and a second voltage detection unit 902. The first voltage detection unit 901 is located at the input terminal of the AC power supply 10, and the second voltage detection unit 902 is located at the output terminal of the energy storage module 40 (i.e., on the bus connecting the energy storage module 40 and the inverter module 60). Both the first voltage detection unit 901 and the second voltage detection unit 902 are connected to the control module 100. Specifically, the first voltage detection unit 901 can be a voltage sensor, and similarly, the second voltage detection unit 902 can also be a voltage sensor. The first voltage detection unit 901 is used to collect the input voltage value of the AC power 10, and the second voltage detection unit 902 is used to collect the output voltage value of the energy storage module 40 (i.e., the voltage value on the bus connecting the energy storage module 40 and the inverter module 60). When power-on is initiated, the control module 100 controls the first control switch 302 to close and the second control switch 303 to open. During power-on, the first voltage detection unit 901 collects the input voltage value of the AC power 10 in real time, and the second voltage detection unit 902 collects the output voltage value of the energy storage module 40 in real time. When the collected input voltage value and output voltage value meet the preset control conditions, the control module 100 controls the first control switch 302 to open and the second control switch 303 to close. In this way, when the second control switch 303 is closed, since the first control switch 302, which is connected in series with the buffer resistor 301, is open, no current flows through the buffer resistor 301, so no loss is generated, which improves the reliability of the driver. More specifically, in order to disconnect the AC power 10 from the load 70 in the event of a fault and ensure the safety of the load 70, the data acquisition module 90 provided in this embodiment also includes a temperature detection unit 903. The temperature detection unit 903 is disposed on the buffer resistor 301 and is connected to the control module 100. The temperature detection unit 903 can be a temperature sensor. During the power-on process (when the first control switch 302 is closed and the second control switch 303 is open), the temperature detection unit 903 collects the temperature value of the buffer resistor 301 in real time and sends the collected temperature value to the control module 100. When the control module 100 determines that the temperature value is higher than the preset temperature threshold, the control module 100 controls the first control switch 302 to open, thereby disconnecting the AC power 10 from the load 70, which protects the buffer resistor 301 and ensures the safety of the load 70.

[0068] The display module 110 is used to display the scene selection interface. The display module 110 can be connected to the control module 100 via a wireless communication module, which includes a Wi-Fi communication module, a Bluetooth communication module, and an Ethernet communication module. By setting up the wireless communication module, users can select scenes remotely, improving the user experience. The display module 110 can be a display screen. In this embodiment, the display module 110 sends a scene selection signal to the control module 100, causing the control module 100 to control the first control switch 302 and the second control switch 303 in the buffer module 30 to operate based on the scene selection signal and the operating data information collected by the data acquisition module 90. Specifically, the scene includes a first scene and a second scene, where the first scene represents a short power-on time and the second scene represents a long power-on time. The scene selection interface displays two scene selection controls: a first scene selection control and a second scene selection control. When power is required, the user can select a scene according to actual needs. After the user selects a scene based on the scene selection interface, the display module 110 generates a scene selection signal and sends it to the control module 100. The control module 100 pre-stores pre-control conditions corresponding to different scenes. When the control module 100 receives the scene selection signal, it parses the signal to obtain the target scene information (i.e., the first scene information or the second scene information). Based on the target scene information, the corresponding pre-control conditions can be obtained. The control module 100 controls the first control switch 302 and the second control switch 303 to operate according to the pre-control conditions and the data information collected by the data acquisition module 90. That is, for any scene corresponding to the pre-control conditions, when the control module 100 determines that the pre-control conditions are met based on the data information, the first control switch 302 is opened and the second control switch 303 is closed, thereby meeting the application scenario requirements of the driver.

[0069] The alarm module 80 is used to provide alarm prompts in case of a fault. The alarm module 80 includes a signal light unit and a voice unit; the signal light unit provides visual alarm prompts, and the voice unit provides audible alarm prompts. During power-on, when the control module 100 determines that the temperature of the collected buffer resistor 301 is higher than a preset temperature threshold, the first control switch 302 of the control module 100 is opened, and the control module 100 generates an alarm control signal, which is then sent to the alarm module 80 for alarm prompts. Furthermore, in the second scenario, when the control module 100 determines, based on operating data, that the preset control conditions are not met, a driver fault is identified, and the control module 100 generates an alarm control signal, which is then sent to the alarm module 80 for alarm prompts.

[0070] The protection module 50 is used to disconnect or connect the energy storage module 40 and the inverter module 60. The protection module 50 is connected between the energy storage module 40 and the inverter module 60, and includes a relay unit and a contactor unit. In this embodiment, the protection module 50 is normally closed. When the protection module 50 receives a protection control signal from the control module 100, it disconnects the connection between the energy storage module 40 and the inverter module 60; when the protection module 50 receives a stop protection control signal from the control module 100, it connects the connection between the energy storage module 40 and the inverter module 60. When the user selects the first scenario (i.e., short power-on time), after the control module 100 controls the first control switch 302 to close and the second control switch 303 to open, a voltage spike will be generated. When the voltage spike reaches a safety threshold, the control module 100 generates a protection control signal and sends it to the protection unit to disconnect the connection between the energy storage module 40 and the inverter module 60. Furthermore, when the control module 100 updates the preset control conditions, the control module 100 generates a stop protection control signal and sends the stop protection control signal to the protection module 50. When the protection module 50 receives the stop protection control signal sent by the control module 100, it connects the energy storage module 40 and the inverter module 60 so that the control module 100 can restart the power-on process according to the updated preset control conditions to complete the power-on process.

[0071] The following is an example of the control methods corresponding to the first and second scenarios, as detailed below.

[0072] In the first scenario, a pre-set threshold parameter x is stored in the control module. When AC power is supplied, the first voltage detection unit detects the input AC voltage and feeds it back to the control module. The control module determines the balance voltage value b based on the input voltage value. Based on the balance voltage value b and the threshold parameter x, it calculates the power-on buffer threshold c. The threshold parameter is equal to the absolute value of the difference between the balance voltage value b and the power-on buffer threshold c. At this point, the control module controls the first control switch to close and the second control switch to open. The second voltage detection unit detects the output voltage value of the energy storage module (the voltage value on the bus) in real time and feeds it back to the control module. When the output voltage rises to the power-on buffer threshold c, the control module controls the first control switch to open and the second control switch to close. This generates a voltage spike. The second voltage detection unit detects the spike voltage value a and feeds it back to the control module. The control module determines whether the spike voltage value a has reached the safety threshold. If the spike voltage value a has not reached the safety threshold, normal operation continues to complete the power-on process, maintaining the output voltage of the energy storage module near the balanced voltage value b. If the spike voltage value a has reached the safety threshold, the control module sends a protection control signal to the protection module, causing the protection module to disconnect the connection between the energy storage module and the inverter module. The control module then reduces the threshold parameter x and sends a stop protection control signal to the protection module, causing the protection module to reconnect the connection between the energy storage module and the inverter module. The control module repeats the above process according to the reduced threshold parameter x to complete the power-on process.

[0073] In this embodiment, reference Figure 7 When the threshold parameter x is decreased, the difference between the equilibrium voltage b and the power-on buffer threshold c decreases, thereby reducing the peak voltage value a. This decrease in peak voltage value a leads to an increase in the overall power-on time. Similarly, when the threshold parameter x is increased, the difference between the equilibrium voltage b and the power-on buffer threshold c increases, thereby increasing the peak voltage value a. This increase in peak voltage value a leads to a decrease in the overall power-on time. Therefore, by adjusting the threshold parameter x, both the peak voltage value and the power-on time can be adjusted to better meet the driver's requirements for the application environment. It should be noted that the power-on time specifically refers to the difference between the moment power-on is initiated and the moment the equilibrium voltage value b is reached.

[0074] In the second scenario, the pre-set bus threshold value R is stored in the control module. When AC power is supplied, the first voltage detection unit detects the input voltage value of the AC power and feeds it back to the control module. The control module calculates the theoretical value of the bus (balance voltage b) based on the input voltage value. At this time, the control module controls the first control switch to close and the second control switch to open. The second voltage detection unit detects the output voltage value of the energy storage module (the voltage value on the bus) in real time. When the bus voltage value is stable, it determines whether the absolute value of the difference between the stable bus voltage value and the theoretical value is less than or equal to R. When the absolute value of the difference is less than or equal to R, the control module controls the first control switch to open and the second control switch to close to complete the power-on. When the absolute value of the difference is greater than R, the driver malfunctions, and the control module sends an alarm control signal to the alarm module to trigger an alarm.

[0075] refer to Figure 5 and Figure 6 ,from Figure 5 and Figure 6 As shown, the power-on time of the control method corresponding to the first scenario is relatively short, while the power-on time of the control method corresponding to the second scenario is relatively long. When the driver is powered on, the driver scenario is selected so that the control module can control according to the selected scenario, which can meet the needs of the driver's application scenario.

[0076] This embodiment provides a power-on buffer control method that, upon power-on, can select a scenario based on the driver's required application scenario and control the buffer module accordingly based on the selected application scenario and the collected operating data information, thereby meeting the driver's application scenario requirements and improving the user experience.

[0077] refer to Figure 3 , Figure 3 This is a flowchart illustrating a power-on buffer control method provided in an embodiment of the present invention. The power-on buffer control method provided in this embodiment is applied to the power-on buffer control system described above, and includes the following steps:

[0078] S101: When it is determined to power on, the control module determines that the preset control conditions corresponding to the target scene information and the control buffer module are in the first state.

[0079] In this embodiment, after the user selects an application scenario for the driver based on the scene selection interface displayed by the display module, power-on is confirmed, and AC power is supplied. The target scene information is determined by the control module based on the scene selection signal sent by the display module. The scene selection signal is generated by the display module detecting a trigger operation on the scene selection interface. The scene selection interface displays two scene selection controls: a first scene selection control and a second scene selection control. The first scene indicates a short power-on time, and the second scene indicates a long power-on time. When power-on is required, the user can select a scene according to their actual needs. After the user selects a scene based on the scene selection interface, the display module generates a scene selection signal and sends it to the control module. The control module determines the target scene information (either the first or second scene) based on the scene selection signal, thereby determining the preset control conditions corresponding to the target scene information. It should be noted that the preset control conditions are set according to the length of the power-on time.

[0080] In this embodiment, the preset control conditions corresponding to the target scene information can be determined in the following way:

[0081] The control module determines the preset control conditions corresponding to the target scene information from the preset association relationship. The preset association relationship stores the correspondence between multiple sets of scene information and preset control conditions.

[0082] Specifically, the preset association relationships in this embodiment store the correspondence between the first scene and preset control conditions, and also store the correspondence between the second scene and preset control conditions. The preset control conditions will be described below, and will not be repeated here.

[0083] S102: The control module acquires the running data information of the driver during the power-on process collected by the data acquisition module.

[0084] In this embodiment, during the power-on process, the data acquisition module collects the operating data information of the driver in real time and sends the operating data information to the control module in real time. The operating data information may include the input voltage value of AC power and the output voltage value of the energy storage module.

[0085] S103: When the control module determines that the preset control conditions are met based on the operating data information, the control module controls the buffer module to switch from the first state to the second state to complete the power-on.

[0086] In this embodiment, when the preset control conditions are met, it indicates that the prerequisite for power-on has been met. After the preset control conditions are met, the control module controls the buffer module to switch from the first state to the second state to complete the power-on of the driver.

[0087] Specifically, the buffer module includes a first control switch, a buffer resistor, and a second control switch. The first state includes: the first control switch is closed and the second control switch is open; the second state includes: the first control switch is open and the second control switch is closed.

[0088] In this embodiment, a first control switch is connected in series with the buffer resistor in the buffer module. When the control module determines that the preset control conditions are met, the control module controls the first control switch to open. At this time, no current flows through the buffer resistor, reducing the loss of the driver. Furthermore, by setting the first control switch, the connection between the AC power and the load can be disconnected in the event of a driver failure, ensuring the safety and reliability of the servo drive. The specific implementation method is as follows:

[0089] During the power-on process, the data acquisition module collects the temperature value of the buffer resistor in real time;

[0090] The data acquisition module sends the temperature value to the control module;

[0091] When the control module determines that the temperature value is greater than the preset temperature threshold, the control module controls the buffer module to switch from the first state to the third state.

[0092] In this embodiment, the third state includes the first control switch being open and the second control switch being open.

[0093] The preset temperature threshold can be set according to actual needs, and no specific limitation is made in this embodiment.

[0094] This embodiment provides a power-on buffer control method that can select a scenario according to the required application scenario of the driver, and control the buffer module accordingly based on the selected application scenario and the collected operating data information, so as to meet the application scenario requirements of the driver and improve the user experience.

[0095] refer to Figure 4 , Figure 4 This is a flowchart illustrating another power-on buffer control method provided in an embodiment of the present invention. The power-on buffer control method provided in this embodiment is applied to the power-on buffer control system described above, and includes the following steps:

[0096] S201: When it is determined to power on, the control module determines that the preset control conditions corresponding to the target scene information and the control buffer module are in the first state.

[0097] In this embodiment, step S201 is the same as step S101 described above, and can be referred to the above description for details. This embodiment will not repeat the details here.

[0098] S202: The control module acquires the running data information of the driver during the power-on process collected by the data acquisition module.

[0099] In this embodiment, when the target scenario information is the first scenario information, the operating data information includes: the first input voltage value of the AC power and the first output voltage value of the energy storage module; when the target scenario information is the second scenario information, the operating data information includes the second input voltage value of the AC power and the third output voltage value of the energy storage module. Power-on judgment is performed based on the preset control conditions and operating data information corresponding to different scenarios to complete the power-on process.

[0100] S2030: When the target scene information is the first scene information, the control module determines whether the preset control conditions are met based on the running data information.

[0101] In this embodiment, step S2030, the control module determines whether the preset control conditions are met based on the operating data information, including:

[0102] The power-on buffer threshold is determined based on the first input voltage value and the first preset threshold.

[0103] When the first output voltage value reaches the power-on buffer threshold, it is determined that the preset control conditions are met.

[0104] The first preset threshold is adjustable. The first preset threshold is the threshold parameter x mentioned above, and the power-on buffer threshold is the power-on buffer threshold c mentioned above. The user can adjust the first preset threshold through the display module or through the control module by logical judgment. The specific adjustment method of the first preset threshold will be described below, and will not be repeated here in this embodiment.

[0105] In this embodiment, the power-on buffer threshold can be determined in the following way:

[0106] Determine the balanced voltage value corresponding to the first input voltage value;

[0107] The power-on buffer threshold is determined based on the balanced voltage value and the first preset threshold.

[0108] in, The power-on buffer threshold is the absolute value of the difference between the balance voltage value and the first preset threshold.

[0109] The balance voltage value is the balance voltage value b mentioned above. The first preset threshold can be set according to actual needs, and is not specifically limited in this embodiment.

[0110] S2031: When the control module determines that the preset control conditions are not met based on the operating data information, it returns to execute step S202.

[0111] In this embodiment, when the preset control conditions are not met, the control module continues to acquire operating data information until the control module determines that the acquired operating data information meets the preset control conditions.

[0112] S2032: When the control module determines that the preset control conditions are met based on the operating data information, the control module controls the buffer module to switch from the first state to the second state.

[0113] In this embodiment, the step of the control module controlling the buffer module to switch from the first state to the second state is the same as the above-described step S103, and will not be described again in this embodiment.

[0114] S2033: When the control module controls the buffer module to switch from the first state to the second state, the control module receives the second output voltage value of the energy storage module collected by the data acquisition module.

[0115] In this embodiment, the second output voltage value represents the peak voltage value, which is 'a' as mentioned above. For example, when the peak voltage value is obtained at the first moment, the peak voltage value means that the output voltage value of the energy storage module before the first moment is less than the output voltage value of the energy storage module at that moment, and the output voltage value of the energy storage module after the first moment is also less than the output voltage value of the energy storage module. The second output voltage value of the energy storage module can be obtained by acquiring this sudden voltage value through the data acquisition module.

[0116] S2034: The control module determines whether the second output voltage value has reached the second preset threshold.

[0117] In this embodiment, the second preset threshold is a safety threshold, used to determine whether the peak voltage value is below the safety threshold. When the peak voltage value reaches the safety threshold, it indicates that the load connected to the driver may be damaged. Therefore, after the peak voltage value reaches the safety threshold, the connection between the AC power and the load is disconnected, and the preset control conditions are updated so that the control module can re-control the power-on until it is finally safely powered on. The second preset threshold can be set according to actual needs, and this embodiment does not impose any limitations.

[0118] S2035: When the control module determines that the second output voltage value has reached the second preset threshold, the control module sends a protection control signal to the protection module to disconnect the connection between the energy storage module and the inverter module.

[0119] In this embodiment, the protection control signal is a signal that controls the protection module to disconnect. When the protection module disconnects, the connection between the energy storage module and the inverter module is broken. The disconnection between the energy storage module and the inverter module will disconnect the connection between the AC power and the load, thereby ensuring the safety of the load.

[0120] S2036: When the control module controls the protection module to disconnect the connection between the energy storage module and the inverter module, the control module adjusts the first preset threshold according to the first preset rule to update the first preset threshold.

[0121] In this embodiment, in order to ensure safe power-on, the second output voltage value of the energy storage module must always be less than the second preset threshold. When the second output voltage value is greater than or equal to the second preset threshold, the first preset threshold needs to be adjusted so that after the control module controls the buffer module to switch from the first state to the second state, the second output voltage value is less than the second preset threshold, thus achieving safe power-on.

[0122] The first preset rule can adjust the first preset threshold according to a first preset descent slope. The first preset descent slope can be set according to actual needs, and is not specifically limited in this embodiment. When the first preset threshold is updated, since the preset control conditions are set according to the first preset threshold, the preset control conditions are updated along with the update of the first preset threshold.

[0123] S2037: The control module sends a stop protection control signal to the protection module so that the protection module can connect the energy storage module and the inverter module.

[0124] In this embodiment, the stop protection control signal is a signal that controls the closure of the protection module. To allow for the next power-on, the currently open protection module must be closed.

[0125] S2038: Based on the updated first preset threshold, the control module returns to the step in step S201 where the control module determines the preset control conditions corresponding to the target scene information and the control buffer module is in the first state.

[0126] S2039: When the control module determines that the second output voltage value has not reached the second preset threshold, the power-on is completed.

[0127] In this embodiment, when the control module determines that the second output voltage value has not reached the second preset threshold, the driver can be powered on normally, so that the output voltage value of the energy storage module is maintained near the equilibrium voltage value to complete the power-on.

[0128] It should be noted that, regarding steps S2030 to S2039, the power-on buffer control method provided in this embodiment further includes the following steps:

[0129] Once power-on is complete, the control module determines the target power-on duration;

[0130] When the control module determines that the target duration is greater than the third preset threshold, the control module increases the first preset threshold according to the second preset rule to update the first preset threshold.

[0131] Upon the next power-on, the control module returns to the step S201, which involves determining the preset control conditions corresponding to the target scene information and the control buffer module being in the first state, based on the updated first preset threshold.

[0132] To further reduce power-on time and improve user experience, a third preset threshold is set. The target power-on time is compared with the third preset threshold. If the target power-on time is greater than the third preset threshold, it indicates that the power-on time needs to be further reduced. Therefore, the adjustable first preset threshold is further adjusted.

[0133] The second preset rule can adjust the first preset threshold according to the second preset rising slope. The third preset threshold and the second preset rising slope can be set according to actual needs, and are not specifically limited in this embodiment. When the first preset threshold is updated, since the preset control conditions are set according to the first preset threshold, the preset control conditions are updated along with the update of the first preset threshold.

[0134] In this embodiment, the power-on buffer control method corresponding to the first scenario can automatically adjust the first preset threshold according to the different input voltage values ​​of AC power, so that even if the input voltage value of AC power is different each time it is powered on, the requirements of the servo controller application environment can be met.

[0135] S2041: When the target scene information is the second scene information, the control module determines whether the preset control conditions are met based on the running data information.

[0136] In this embodiment, step S2041, the control module determines whether the preset control conditions are met based on the operating data information, including:

[0137] The balance voltage value is determined based on the second input voltage value;

[0138] If the third output voltage value does not change within the preset time period and the absolute value of the difference between the third output voltage value and the balanced voltage value is less than or equal to the second preset threshold, then the preset control condition is determined to be met.

[0139] The fact that the third output voltage value remains unchanged within the preset time period indicates that the output voltage value of the energy storage module tends to stabilize. The balance voltage value is the balance voltage value b mentioned above. The second preset threshold is the aforementioned bus critical value R. The preset duration and the second preset threshold can be set according to actual needs, and are not specifically limited in this embodiment.

[0140] S2042: When the control module determines that the preset control conditions are met based on the operating data information, the control module controls the buffer module to switch from the first state to the second state to complete the power-on.

[0141] In this embodiment, the step of the control module controlling the buffer module to switch from the first state to the second state is the same as step S103 described above, and will not be repeated here. After the control module controls the buffer module to switch from the first state to the second state, the output voltage value of the energy storage module will be basically maintained near the equilibrium voltage value.

[0142] S2043: When the control module determines that the preset control conditions are not met based on the operating data information, the control module sends an alarm control signal to the alarm module to provide an alarm prompt.

[0143] In this embodiment, determining that the preset control condition is not met specifically means that the voltage value of the third output terminal does not change within a preset time period, but the difference between the third output voltage value and the balanced voltage value is greater than a second preset threshold. When the preset control condition is determined not to be met, it indicates a driver failure. To ensure the safety of the load, an alarm is triggered to relevant personnel, which can be done through lights or voice prompts.

[0144] As can be seen, the power-on buffer control method provided by the embodiments of the present invention can select a scenario according to the application scenario required by the driver, and control the buffer module accordingly based on the selected application scenario and the collected operating data information, so as to meet the application scenario requirements of the driver and improve the user experience.

[0145] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, circuit, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, circuit, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, circuit, article, or apparatus that includes said element.

[0146] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

[0147] Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A power-on buffer control method, characterized in that, The control method, applied to a power-on buffer control system, includes: When power-on is determined, the control module in the power-on buffer control system determines the preset control conditions corresponding to the target scene information and controls the buffer module in the power-on buffer control system to be in the first state. The target scene information is determined by the control module according to the scene selection signal sent by the display module in the power-on buffer control system. The scene selection signal is generated by the display module detecting the trigger operation for the scene selection interface. The control module acquires the operating data information of the driver during the power-on process collected by the data acquisition module in the power-on buffer control system; When the control module determines that the preset control conditions are met based on the operating data information, the control module controls the buffer module to switch from the first state to the second state to complete the power-on. Wherein, when the target scene information is the first scene information, the operating data information includes the first input voltage value of the AC power and the first output voltage value of the energy storage module; the control module determines whether the preset control conditions are met based on the operating data information, including: The power-on buffer threshold is determined based on the first input voltage value and the first preset threshold. When the first output voltage value reaches the power-on buffer threshold, it is determined that the preset control condition is met; When the power-on buffer control system includes a protection module and the target scenario information is the first scenario information, after executing the step of the control module controlling the buffer module to switch from the first state to the second state, the method further includes: The control module receives the second output voltage value of the energy storage module acquired by the data acquisition module, and the second output voltage value represents the peak voltage value; When the control module determines that the second output voltage value has reached the second preset threshold, the control module sends a protection control signal to the protection module to cause the protection module to disconnect the connection between the energy storage module and the inverter module. The control module adjusts the first preset threshold by decreasing it according to a first preset rule in order to update the first preset threshold; The control module sends a stop protection control signal to the protection module, so that the protection module can connect the energy storage module and the inverter module. The control module performs the steps of determining the preset control conditions corresponding to the target scene information and controlling the buffer module in the power-on buffer control system to be in the first state, based on the updated first preset threshold.

2. The control method according to claim 1, characterized in that, The target scenario information is the second scenario information, and the data information includes the second input voltage value of AC power and the third output voltage value of the energy storage module; The control module determines whether the preset control conditions are met based on the operating data information, including: Determine the balance voltage value based on the second input voltage value; If the third output voltage value does not change within a preset time period and the absolute value of the difference between the third output voltage value and the balanced voltage value is less than or equal to the second preset threshold, then the preset control condition is determined to be met.

3. The control method according to claim 2, characterized in that, When the power-on buffer control system includes an alarm module, the method further includes: If the third output voltage value does not change within the preset time period, but the absolute value of the difference between the third output voltage value and the balanced voltage value is greater than the second preset threshold, then the control module sends an alarm control signal to the alarm module to provide an alarm prompt.

4. The control method according to claim 1, characterized in that, The control module determines the preset control conditions corresponding to the target scene information, including: The control module determines the preset control conditions corresponding to the target scene information from the preset association relationship, which stores multiple sets of scene information and preset control conditions correspondence.

5. The control method according to claim 1, characterized in that, The method further includes: After power-on is complete, the control module determines the target power-on duration; When the control module determines that the target power-on duration is greater than the third preset threshold, the control module increases the first preset threshold according to the second preset rule to update the first preset threshold. Upon the next power-on, the control module executes the steps of determining the preset control conditions corresponding to the target scene information and the control buffer module being in the first state, based on the updated first preset threshold.

6. The control method according to claim 1, characterized in that, When the buffer module includes a first control switch, a buffer resistor, and a second control switch, the first state includes: The first control switch is closed and the second control switch is open; The second state includes: The first control switch is open and the second control switch is closed.

Images