Digital high-voltage pulse accurate driving control method and system

Abstract

The invention relates to the technical field of power systems, in particular to a digital high-voltage pulse accurate driving control method and system. Acquiring an external control signal, and calculating a triggering moment through the high-speed microcontroller unit; according to the trigger time, a trigger pulse is generated through a trigger signal generation module, and a high-voltage conduction module is driven after optical coupler isolation; the current of the high-voltage conduction module is monitored in real time through the accurate current detection module, and protection measures are taken according to the monitoring result. According to the system, a 32-bit high-performance microcontroller is adopted for core control, and functional modules such as high-speed optocoupler isolation, accurate current detection, multiple protection mechanisms and a standard communication interface are integrated. A traditional analog circuit scheme is replaced by digital control, and microsecond-level control precision is achieved; differential driving and EMI (Electro-Magnetic Interference) protection design are adopted; and a multi-protection mechanism and a self-adaptive protection threshold value are adopted, so that the anti-interference capability of the system is remarkably improved, and the operation safety of the system is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of power systems, and in particular to a digital high-voltage pulse precise drive control method and system. Background Art

[0002] With the rapid development of power electronics technology, high-voltage pulse drive control technology plays an increasingly important role in power systems. At present, this technology has been widely used in high-voltage switches, pulse power supplies and other equipment, and its control performance directly affects the reliability and stability of the entire system.

[0003] In the prior art, high-voltage pulse drive control mainly adopts analog circuit design. This solution generates control signals through a simple trigger circuit. Although the structure is simple, it has several significant defects. First, the signal processing speed of the analog circuit is slow, and it is difficult to achieve a fast response; second, due to the lack of accurate current monitoring and feedback mechanism, the control accuracy is low, and the real-time working status of the high-voltage conduction module cannot be accurately grasped.

[0004] In terms of safety protection, the protection measures of traditional controllers are relatively simple, usually only including basic overcurrent protection functions. This limited protection mechanism is difficult to cope with complex power grid environments. When faced with abnormal situations such as overvoltage and short circuit, it often cannot respond in time, which can easily lead to equipment damage or system failure, posing a major safety hazard.

[0005] In addition, the existing controllers also have obvious deficiencies in terms of system integration and intelligence. On the one hand, the controller functional modules are scattered and the system structure is complex, which is not conducive to the miniaturization and modular development of equipment; on the other hand, due to the lack of standardized communication interfaces, the controller has poor compatibility with modern automation systems, making it difficult to achieve remote monitoring and intelligent management, which seriously restricts the system's maintenance efficiency and operational reliability.

[0006] The existence of the above problems makes it difficult for traditional high-voltage pulse drive control technology to meet the current power system's demand for high-performance, high-reliability controllers, and it is urgent to develop new control technology solutions. Summary of the invention

[0007] In view of the problems existing in the prior art, the present invention is proposed.

[0008] Therefore, the problem to be solved by the present invention is how to solve the problem that traditional high-voltage pulse drive control technology mainly uses analog circuits for trigger signal processing, resulting in slow system response speed and inability to meet the control requirements of fast response; at the same time, due to the lack of accurate current monitoring and feedback mechanism, it is difficult to achieve precise control of the high-voltage conduction module, which seriously affects the overall performance of the system.

[0009] The existing controller's safety protection mechanism is relatively simple, with only basic overcurrent protection functions, and lacks effective protection measures for abnormal conditions such as overvoltage and short circuit. This limited protection mechanism is prone to cause equipment damage or system failure in a complex power grid environment, posing a major safety hazard.

[0010] Existing controllers generally have the problems of low integration and single functions. The decentralized functional module design not only leads to a complex system structure and large space occupation, but also is not conducive to the miniaturization and modular development of the system. In addition, the communication interface function of the controller is weak, making it difficult to effectively connect with modern automation and intelligent systems, limiting the system's remote monitoring and intelligent management capabilities.

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0012] In a first aspect, an embodiment of the present invention provides a digital high-voltage pulse precision drive control method, which includes obtaining an external control signal and calculating a triggering moment through a high-speed microcontroller unit;

[0013] According to the triggering moment, a triggering pulse is generated by a triggering signal generating module, and a high-voltage conduction module is driven after being isolated by an optical coupler;

[0014] The current of the high-voltage conduction module is monitored in real time through an accurate current detection module, and protective measures are taken according to the monitoring results.

[0015] As a preferred solution of the digital high-voltage pulse precision drive control method described in the present invention, the protection measures of the high-voltage conduction module include: overcurrent protection, overvoltage protection and short-circuit protection; when an abnormal situation is detected, the microcontroller unit quickly cuts off the power supply or adjusts the trigger signal.

[0016] As a preferred solution of the digital high-voltage pulse precision drive control method described in the present invention, the trigger signal generation module includes: receiving instructions from the microcontroller unit; generating appropriate trigger pulses according to the instructions; and realizing electrical isolation of the control signal from the main circuit through an optocoupler isolation module.

[0017] As a preferred solution of the digital high-voltage pulse precise drive control method described in the present invention, the precise current detection module includes: real-time monitoring of the current of the high-voltage conduction module through a high-precision current sensor; real-time transmission of the monitoring data to the microcontroller unit; and providing necessary feedback information for the protection mechanism.

[0018] As a preferred solution of the digital high-voltage pulse precision drive control method described in the present invention, it also includes a communication interface integration step: integrating multiple communication protocol interfaces such as RS485, CAN or Ethernet; achieving seamless connection with external control equipment; and facilitating remote monitoring and control.

[0019] As a preferred solution of the digital high-voltage pulse precision drive control method described in the present invention, the microcontroller unit, current detection module, optocoupler isolation module, trigger signal generation module, protection circuit and communication interface are integrated on a single controller to form a compact control unit.

[0020] As a preferred solution of the digital high-voltage pulse precision drive control method described in the present invention, it also includes a protection circuit design step: arranging a protection circuit at the edge of the controller; including overcurrent and overvoltage protection; and quickly responding to abnormal conditions.

[0021] In a second aspect, an embodiment of the present invention provides a digital high-voltage pulse precision drive control system, which includes a signal acquisition module for acquiring an external control signal and calculating a triggering moment through a high-speed microcontroller unit;

[0022] A signal generating module, used to generate a trigger pulse through a trigger signal generating module according to the trigger moment, and drive a high-voltage conduction module after isolation through an optical coupler;

[0023] The monitoring control module is used to monitor the current of the high-voltage conduction module in real time through the accurate current detection module, and take protective measures according to the monitoring results.

[0024] In a third aspect, an embodiment of the present invention provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, wherein: when the computer program instructions are executed by the processor, the steps of the digital high-voltage pulse precision drive control method as described in the first aspect of the present invention are implemented.

[0025] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program instructions are executed by a processor, the steps of the digital high-voltage pulse precision drive control method as described in the first aspect of the present invention are implemented.

[0026] The beneficial effects of the present invention are as follows: by using a high-speed microcontroller, the controller can quickly respond to an external trigger signal, significantly improving the dynamic response performance of the system; the precise current detection and feedback mechanism ensures that the high-voltage conduction module is triggered at the optimal working point, thereby improving the accuracy of the control and the overall efficiency of the system; the application of optocoupler isolation technology and multiple protection mechanisms enhances the anti-interference and self-protection capabilities of the controller, and reduces the risk of damage caused by abnormal conditions; the modular design and integrated protection circuit improve the reliability of the controller, enabling it to work stably in harsh power grid environments; the integrated communication interface supports connection with modern automation systems, facilitates remote monitoring and intelligent control, and improves the intelligence level of the system; due to the compact integrated design, the controller occupies a small space, is easy to install and integrate into existing power electronic systems, and simplifies the maintenance and upgrade process; the controller design takes into account a variety of power grid environments, has good adaptability, and is suitable for various industrial and power system application scenarios. In summary, the controller of the present invention not only improves performance, but also pays attention to safety, reliability and intelligence, meeting the needs of modern power electronic systems for high-performance controllers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a flow chart of a digital high-voltage pulse precision drive control method;

[0029] Figure 2 A computer device diagram for a digital high voltage pulse precision drive control method;

[0030] Figure 3 This is the system operation diagram of the digital high-voltage pulse precision drive control method. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figure 1-2 , which is the first embodiment of the present invention, provides a digital high-voltage pulse precise drive control method, comprising:

[0036] S100: Obtain an external control signal and calculate the triggering moment through a high-speed microcontroller unit;

[0037] In the embodiment of the present application, the external control signal includes: a PWM control signal, an analog control signal, a frequency control signal and a duty cycle control signal. The external control signal is acquired and processed through the input interface of the high-speed microcontroller unit.

[0038] Specifically, the PWM control signal can be a pulse width modulation signal generated by an external device, which is used to control the width of the output pulse; the analog control signal can be a 0-5V or 0-10V voltage signal, which is used to control the amplitude of the output pulse; the frequency control signal can be a digital signal for setting the output pulse frequency; the duty cycle control signal can be a control signal for adjusting the duty cycle of the output pulse.

[0039] In an optional embodiment, the PWM control signal, the analog control signal, the frequency control signal and the duty cycle control signal can be any combination of signals obtained from different types of control devices. For example, when the PWM control signal is a pulse signal from a PLC, the frequency control signal can be a digital signal from a host computer.

[0040] In an optional embodiment, the external control signal can also increase or decrease other types of control signals according to different application scenarios. For example, when more refined pulse control is required, a phase control signal (i.e., the fifth type of control signal) can be added to achieve phase synchronization of multi-channel pulse outputs, thereby further improving the accuracy and flexibility of control. In addition, considering the impact of the actual application environment on the quality of the control signal, an adaptive signal processing algorithm can also be introduced to dynamically filter and calibrate the collected control signal to ensure that a stable and reliable control signal can be obtained under various working conditions.

[0041] In an optional embodiment, if the duty cycle adjustment does not need to be considered, the duty cycle control signal can be omitted, thereby simplifying the control logic. However, in this application, in order to ensure the comprehensiveness of the control, such a signal is still retained.

[0042] It should be noted that the acquisition of the above control signals can fully cover all aspects of high-voltage pulse drive control, including but not limited to pulse width, amplitude, frequency and duty cycle, so as to ensure the accuracy and comprehensiveness of control. At the same time, by introducing various types of control signals, such as PWM signals, analog signals, frequency signals and duty cycle signals, the advantages of various control methods can be fully utilized, complement each other, and improve the efficiency and accuracy of control. In addition, according to the needs of different application scenarios, the types and quantities of control signals can be flexibly adjusted to meet the needs of actual control work. This multi-source signal fusion strategy not only improves the flexibility and adaptability of the control system, but also provides sufficient control basis for subsequent precise control.

[0043] In the embodiment of the present application, the high-speed microcontroller unit uses a 32-bit ARM Cortex-M4 core with a main frequency of up to 168MHz and a hardware floating-point unit (FPU) that can quickly process complex mathematical operations. The microcontroller adopts a multi-layer bus architecture, including a high-speed AHB bus and a peripheral APB bus, to ensure efficient data transmission.

[0044] In the embodiment of the present application, the core function of the high-speed microcontroller unit is to calculate the trigger moment. This calculation process needs to consider multiple factors: first, the sampling and analysis of the control signal, converting different types of input signals into a standard format; second, according to the actual application requirements, combined with the preset control parameters, calculate the optimal trigger moment; finally, perform necessary boundary checks and safety verifications to ensure the validity of the calculation results.

[0045] In a preferred embodiment, the calculation of the triggering moment also needs to consider the delay compensation of the system. For example, since the optical coupling isolation, drive circuit and other links will introduce a certain delay, the system needs to compensate for these inherent delays to ensure that the actual triggering moment is consistent with the expectation. The specific compensation method may include: pre-calibrating the delay characteristics of each link, establishing a delay compensation table, and dynamically looking up the table and performing compensation during the actual control process.

[0046] It should be noted that the processing performance of the high-speed microcontroller unit directly affects the response speed and accuracy of the entire control system. By adopting a high-performance 32-bit microcontroller, combined with an optimized control algorithm and delay compensation mechanism, the system can achieve microsecond-level control accuracy and meet the strict requirements of high-voltage pulse drive.

[0047] S200: According to the triggering moment, a triggering pulse is generated by a triggering signal generating module, and a high-voltage conduction module is driven after being isolated by an optical coupler;

[0048] In the embodiment of the present application, the trigger signal generation module adopts a high-speed digital circuit design, including functional units such as a programmable counter, a comparator, and an output buffer, etc. The module can accurately generate the required trigger pulse signal according to the trigger moment calculated by the microcontroller.

[0049] Specifically, the trigger signal generation process includes the following steps: first, the programmable counter counts according to the system clock, and when the count value matches the preset trigger moment, the output comparison interrupt is triggered; then, the comparator generates a standard trigger pulse according to the interrupt signal; finally, the optocoupler isolation circuit is driven through the output buffer.

[0050] In an optional embodiment, the trigger signal generation module can also realize multiple trigger outputs, and each output can independently set trigger parameters. For example, when multiple high-voltage switch tubes need to be controlled, accurate switch timing control can be achieved through different trigger channels.

[0051] In the embodiment of the present application, the optical coupling isolation module adopts a high-speed optical coupling device, whose switching characteristic time is less than 100ns, which can ensure the fast and accurate transmission of the trigger signal. In order to improve the anti-interference ability of the system, the optical coupling module adopts a differential drive mode and is equipped with a complete EMI protection design.

[0052] In an optional embodiment, the driving circuit of the optocoupler isolation module adopts a push-pull output structure, which can provide greater driving capability and faster switching speed. At the same time, a current limiting protection and clamping protection circuit are set at the optocoupler input end to prevent excessive driving current from damaging the optocoupler device.

[0053] It should be noted that optocoupler isolation not only provides the necessary electrical isolation between the control circuit and the high-voltage circuit, but also effectively suppresses common-mode interference and improves the reliability of the system. Through careful circuit design and device selection, the optocoupler isolation module of this system achieves a signal transmission delay of less than 150ns, meeting the requirements of high-speed trigger control.

[0054] In the embodiment of the present application, the high-voltage conduction module is mainly composed of power devices such as IGBT or MOSFET, which is responsible for the actual high-voltage switch control. The design of this module requires special attention to the following aspects:

[0055] Device selection: Select appropriate power devices according to the voltage and current levels of the actual application, and reserve sufficient margin;

[0056] Drive design: Use dedicated gate drive circuit to ensure fast and reliable switching action;

[0057] Protection measures: including multiple protection mechanisms such as overvoltage protection, overcurrent protection, and temperature protection.

[0058] In a preferred embodiment, the high voltage conduction module can also adopt a multi-device parallel design to improve the current capacity and reliability of the system. When used in parallel, special attention should be paid to the parameter matching and current sharing design of the devices, and dynamic balance can be achieved by adjusting the driving signal timing of each device.

[0059] S201: The protection measures of the high voltage conduction module include: over-current protection, over-voltage protection and short-circuit protection; when an abnormal situation is detected, the microcontroller unit quickly cuts off the power supply or adjusts the trigger signal.

[0060] S202: The trigger signal generating module includes: receiving instructions from the microcontroller unit; generating appropriate trigger pulses according to the instructions; and achieving electrical isolation of the control signal from the main circuit through an optical coupling isolation module.

[0061] S300: Monitor the current of the high-voltage conduction module in real time through the precise current detection module, and take protective measures according to the monitoring results.

[0062] S301: The precise current detection module includes: real-time monitoring of the current of the high-voltage conduction module through a high-precision current sensor; real-time transmission of the monitoring data to the microcontroller unit; and providing necessary feedback information for the protection mechanism.

[0063] S302: Also includes the communication interface integration step: integrating multiple communication protocol interfaces such as RS485, CAN or Ethernet; achieving seamless connection with external control devices; facilitating remote monitoring and control.

[0064] S303: The microcontroller unit, current detection module, optocoupler isolation module, trigger signal generation module, protection circuit and communication interface are integrated on a single controller to form a compact control unit.

[0065] S304: Also includes the protection circuit design step: arranging the protection circuit at the edge of the controller; including overcurrent and overvoltage protection; and quickly responding to abnormal conditions.

[0066] In the embodiment of the present application, the accurate current detection module uses a Hall current sensor for real-time measurement, the sampling frequency can reach 1MHz, and the accuracy is better than 0.1%. The module includes a signal conditioning circuit, a high-speed A / D converter and a digital filter.

[0067] Specifically, the current detection process includes the following steps: the Hall sensor collects the current signal of the high-voltage conduction module in real time; the signal conditioning circuit amplifies and filters the original signal; the 16-bit high-speed A / D converter converts the analog signal into a digital quantity; the digital filter processes the sampled data to remove interference noise.

[0068] In an optional embodiment, the precise current detection module can also integrate a self-calibration function. The system performs zero point and gain calibration at startup, and periodically performs calibration compensation during operation to ensure long-term stability of measurement accuracy.

[0069] In the embodiments of the present application, the implementation of protection measures is divided into two levels: hardware protection and software protection. Hardware protection is implemented through a dedicated protection circuit, which has the characteristics of fast response speed and high reliability; software protection is implemented through program judgment of the microcontroller, which can realize more complex protection strategies.

[0070] Specifically, the protection measures include: overcurrent protection: when the current is detected to exceed the preset threshold, the protection is triggered immediately; overvoltage protection: monitor the voltage across the high-voltage conduction module to prevent breakdown damage; short-circuit protection: quickly cut off the output when a short-circuit fault is detected; temperature protection: monitor the temperature of the power device to prevent overheating damage.

[0071] In a preferred embodiment, the system also implements an adaptive protection threshold function, dynamically adjusting protection parameters according to different working states and environmental conditions, thereby ensuring safe and reliable operation and avoiding unnecessary downtime caused by false protection.

[0072] It should be noted that accurate current detection and timely protection measures are the key to ensuring safe and reliable operation of the system. By adopting high-performance detection devices and advanced signal processing technology, combined with multiple protection mechanisms, this system can respond at the microsecond level when abnormal conditions are detected, effectively preventing equipment damage.

[0073] In the embodiment of the present application, the implementation of the system also includes the integration of communication interfaces, using a variety of standard communication protocols to achieve data interaction with external control devices. The main communication interfaces include: RS485 interface: supports Modbus RTU protocol, suitable for industrial field bus communication; CAN interface: supports CANopen protocol, suitable for real-time control applications; Ethernet interface: supports Modbus TCP protocol, convenient for remote monitoring and data acquisition.

[0074] In an optional embodiment, the system supports dynamic switching of communication protocols and parameter configuration. The operator can select a suitable communication method and set communication parameters through the configuration software to achieve docking with different control systems.

[0075] It should be noted that the perfect communication interface not only facilitates the debugging and monitoring of the system, but also reserves an interface for subsequent functional expansion. The system can upload operating data in real time through the communication interface, receive control instructions, and realize remote diagnosis and maintenance.

[0076] In order to ensure the reliability of control, the system adopts modular hardware design and layered software architecture. In terms of hardware, each functional module adopts standardized interfaces to facilitate maintenance and upgrades; in terms of software, a real-time operating system is used for task scheduling to ensure timely response to key control tasks.

[0077] In the embodiment of the present application, the software design of the system adopts a layered architecture: the bottom driver layer: responsible for the direct control of the hardware interface; the functional control layer: implements specific control algorithms and protection strategies; the application management layer: handles human-computer interaction and communication tasks.

[0078] In a preferred embodiment, the system software also implements a complete exception handling mechanism. When a hardware failure or software anomaly is detected, the system can handle it according to a predetermined strategy to ensure the safe shutdown of the equipment and record detailed fault information for subsequent analysis.

[0079] It should be noted that through modular design and standardized interfaces, the system has good scalability and maintainability. Each functional module can be upgraded and optimized independently while ensuring the overall stability of the system.

[0080] The system also includes comprehensive debugging and diagnostic functions: parameter configuration: supports configuration of various control parameters through host computer software; operation monitoring: real-time display of system operation status and key parameters; fault diagnosis: record and display detailed fault information; waveform recording: supports waveform capture and storage of key signals.

[0081] In a practical application example, the system is used to control a high-power pulse power supply. The control parameters are set as follows: output voltage: 0-10kV adjustable; pulse width: 1μs-100μs adjustable; repetition frequency: 100Hz-10kHz adjustable; trigger delay: <200ns; protection response time: <1μs.

[0082] It should be noted that the system achieves precise control and reliable protection of high-voltage pulses through the precise calculation of high-performance microcontrollers and the coordination of multiple protection mechanisms. In actual operation, the system shows excellent control accuracy and stability.

[0083] In the specific implementation of this application, each functional module uses the following core devices: microcontroller: STM32F407VGT6, main frequency 168MHz; optocoupler isolation: HCPL-J312, switching time <100ns; current detection: LEM integrated Hall sensor, accuracy 0.1%

[0084] A / D conversion: AD7606, 16-bit resolution, sampling rate 200kSPS; Communication interface: 75176 (RS485), TJA1050 (CAN); Protection circuit: self-designed composite protection circuit.

[0085] The selection of these components is based on strict performance evaluation and reliability considerations to ensure that the system can work stably under various working conditions. At the same time, alternative solutions are reserved for key components to deal with component discontinuation or supply problems.

[0086] Furthermore, this embodiment also provides a digital high-voltage pulse precision drive control system, comprising:

[0087] A signal acquisition module, used to acquire external control signals and calculate the triggering moment through a high-speed microcontroller unit;

[0088] A signal generating module, used to generate a trigger pulse through a trigger signal generating module according to the trigger moment, and drive a high-voltage conduction module after isolation through an optical coupler;

[0089] The monitoring control module is used to monitor the current of the high-voltage conduction module in real time through the accurate current detection module, and take protective measures according to the monitoring results.

[0090] In summary, by using a high-speed microcontroller unit to calculate the trigger moment and combining it with an accurate delay compensation mechanism, a fast response and processing of the control signal is achieved. The system can convert various types of input signals (PWM, analog, frequency, duty cycle, etc.) into a standard format and calculate the optimal trigger moment in combination with preset control parameters. This design not only solves the problem of slow response speed of traditional analog circuits, but also ensures that the actual trigger moment is consistent with the expected one through delay compensation, ultimately achieving microsecond-level control accuracy.

[0091] Through the high-speed optocoupler isolation module with differential drive and EMI protection design, the control signal can be electrically isolated from the main circuit while effectively suppressing common-mode interference. This solution adopts a push-pull output structure and a complete protection circuit, which not only provides greater driving capability but also ensures device safety. This design enables the system to significantly improve the anti-interference ability and reliability of the system while ensuring the signal transmission delay within 150ns.

[0092] By integrating precise current detection modules and multiple protection mechanisms, high-precision, real-time current monitoring and fast protection response are achieved. The system uses Hall current sensors for high-frequency sampling, combined with signal conditioning circuits and digital filtering to ensure measurement accuracy better than 0.1%. At the same time, combined with hardware and software dual protection strategies, the system can achieve microsecond-level protection response when an abnormality is detected, effectively preventing equipment damage.

[0093] By integrating the microcontroller unit, current detection module, optocoupler isolation module and other functional units into a single controller, the system is highly integrated by adopting modular design and standardized interfaces. This design not only reduces system complexity and space occupation, but also improves system maintainability and scalability, allowing each functional module to be independently upgraded and optimized.

[0094] By integrating multiple standard communication protocol interfaces (RS485, CAN, Ethernet) and supporting dynamic switching and parameter configuration of communication protocols, flexible connection with external control devices is achieved. This design enables the system to have remote monitoring, diagnosis and maintenance capabilities, significantly improving the system's intelligence level and operation and maintenance efficiency.

[0095] Example 2

[0096] Reference Figure 2 - Figure 3 , which is the second embodiment of the present invention.

[0097] High-voltage pulses mainly have two indicators: pulse amplitude and pulse width. Different driving methods will lead to unsatisfactory control of high-voltage pulse output. Too high output will damage the device under test, and too low output will not achieve the test effect. Therefore, high-voltage pulse drive control technology requires a system to accurately control the pulse signal width and trigger time. The principles of each component of the system are as follows:

[0098] High-speed microcontroller application: Utilize the fast processing capability of high-speed microcontroller to achieve instant response to external control signals and generate accurate trigger signals.

[0099] Real-time current monitoring: The current of the high-voltage conduction module is monitored in real time through a high-precision current sensor to ensure the accuracy of the trigger signal and provide necessary feedback information for the protection mechanism.

[0100] Optocoupler isolation technology: Optocoupler devices are used to achieve electrical isolation between the control signal and the main circuit, enhancing the system's anti-interference ability and improving safety.

[0101] Accurate trigger signal generation: Based on the instructions of the microcontroller, the trigger signal generation module can quickly generate trigger pulses and accurately control the on and off of the high-voltage conduction module.

[0102] Multiple protection mechanisms: Multiple protection circuits including overcurrent, overvoltage, short circuit, etc. are designed. Once an abnormal situation is detected, the power supply can be quickly cut off or the trigger signal can be adjusted to protect the controller and connected devices.

[0103] Modular design: The high-voltage pulse drive control adopts a modular design. Various functional modules such as microcontroller, detection module, protection circuit, etc. are integrated on a single controller for easy installation and maintenance.

[0104] Communication interface integration: Integrate multiple communication protocol interfaces, such as RS485, CAN or Ethernet, to achieve seamless connection with external control devices, facilitating remote monitoring and control.

[0105] Through the above principles, the high-voltage pulse drive control technology of the present invention can provide fast and accurate control of high-voltage conduction module trigger control, while ensuring the safety and reliability of the system, meeting the high standards of modern power electronic systems.

[0106] A digital high-voltage pulse drive control includes a high-speed microcontroller unit, a precise current detection module, a high-speed optocoupler isolation module, a trigger signal generation module, a protection circuit and a communication interface, characterized in that the microcontroller unit, the current detection module, the optocoupler isolation module, the trigger signal generation module, the protection circuit and the communication interface are integrated on a single controller to form a compact control unit. The microcontroller unit receives an external control signal, such as a PWM or analog signal. According to the control signal, the microcontroller calculates the trigger moment and sends an instruction to the trigger signal generation module. The trigger signal generation module generates an appropriate trigger pulse, which drives the high-voltage conduction module after being isolated by an optocoupler. The current detection module monitors the current of the high-voltage conduction module in real time, and once an abnormality is detected, it immediately notifies the microcontroller to take protective measures.

[0107] High-speed microcontroller unit: Located in the center of the controller, responsible for receiving external control signals and calculating the triggering moment. Accurate current detection module: Connected to the microcontroller unit, real-time monitoring of the high-voltage conduction module current, providing feedback information.

[0108] High-speed optocoupler isolation module: located between the microcontroller unit and the trigger signal generation module to ensure electrical isolation of signal transmission.

[0109] Trigger signal generation module: generates trigger pulses according to the instructions of the microcontroller to drive the high-voltage conduction module.

[0110] Protection circuits: Arranged around the edge of the controller, including over-current and over-voltage protection to quickly respond to abnormal conditions.

[0111] Communication interface: Located in a corner of the controller, it integrates multiple communication protocol interfaces such as RS485 and RS232, making it easy to connect to external control devices.

[0112] Example 3

[0113] This embodiment also provides a computer device, which is suitable for a digital high-voltage pulse precision drive control method, including a memory and a processor; the memory is used to store computer executable instructions, and the processor is used to execute computer executable instructions to implement a forced oscillation detection and positioning method for a distribution network as proposed in the above embodiment.

[0114] This embodiment further provides a storage medium on which a computer program is stored. When the program is executed by a processor, a forced oscillation detection and positioning method for a distribution network is implemented as proposed in the above embodiment.

[0115] The computer device may be a terminal, and the computer device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covering the display screen, or a key, trackball or touchpad provided on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0116] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0117] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0118] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in another suitable manner as necessary, and then stored in a computer memory.

[0119] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0120] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A digital high-voltage pulse precision drive control method, characterized in that: It includes obtaining an external control signal and calculating a triggering moment through a high-speed microcontroller unit; According to the triggering moment, a triggering pulse is generated by a triggering signal generating module, and a high-voltage conduction module is driven after being isolated by an optical coupler; The current of the high-voltage conduction module is monitored in real time through an accurate current detection module, and protective measures are taken according to the monitoring results.

2. The digital high-voltage pulse precision drive control method according to claim 1, characterized in that: The protection measures of the high-voltage conduction module include: over-current protection, over-voltage protection and short-circuit protection; when an abnormal situation is detected, the microcontroller unit quickly cuts off the power supply or adjusts the trigger signal.

3. The digital high-voltage pulse precision drive control method according to claim 2, characterized in that: The trigger signal generating module comprises: receiving instructions from the microcontroller unit; generating appropriate trigger pulses according to the instructions; and realizing electrical isolation of the control signal from the main circuit through an optical coupling isolation module.

4. The digital high-voltage pulse precision drive control method according to claim 3, characterized in that: The precise current detection module includes: real-time monitoring of the current of the high-voltage conduction module through a high-precision current sensor; real-time transmission of the monitoring data to the microcontroller unit; and providing necessary feedback information for the protection mechanism.

5. The digital high-voltage pulse precision drive control method according to claim 4, characterized in that: It also includes the steps of communication interface integration: integrating multiple communication protocol interfaces such as RS485, CAN or Ethernet; achieving seamless connection with external control devices; and facilitating remote monitoring and control.

6. The digital high-voltage pulse precision drive control method according to claim 5, characterized in that: The microcontroller unit, current detection module, optocoupler isolation module, trigger signal generation module, protection circuit and communication interface are integrated on a single controller to form a compact control unit.

7. The digital high-voltage pulse precision drive control method according to claim 6, characterized in that: It also includes protection circuit design steps: arranging protection circuits at the edge of the controller; including overcurrent and overvoltage protection; and quickly responding to abnormal situations.

8. A digital high-voltage pulse precision drive control system, based on the digital high-voltage pulse precision drive control method according to any one of claims 1 to 7, characterized in that: It also includes a signal acquisition module for acquiring an external control signal and calculating a triggering moment through a high-speed microcontroller unit; A signal generating module, used to generate a trigger pulse through a trigger signal generating module according to the trigger moment, and drive a high-voltage conduction module after isolation through an optical coupler; The monitoring control module is used to monitor the current of the high-voltage conduction module in real time through the accurate current detection module, and take protective measures according to the monitoring results.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the digital high-voltage pulse precise drive control method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the digital high-voltage pulse precision drive control method according to any one of claims 1 to 7 are implemented.

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