Neutral beam injector ignition adaptive recovery control system and method

Abstract

The invention provides a neutral beam injector ignition adaptive recovery control system and method, and belongs to the technical field of nuclear fusion experiment device control and fault diagnosis, and the system comprises a channel independent configuration module which is used for configuring ignition recovery parameters for each power channel in a neutral beam injector; the real-time monitoring and diagnosis module is used for collecting a voltage signal and a current signal of each power supply channel in real time, diagnosing a sparking event of the power supply channel, obtaining a fault channel and performing sparking counting on each fault channel; the safety cut-off module cuts off the fault channel; and the distributed control module is used for respectively controlling each fault channel to recover operation according to the ignition times and the ignition recovery parameters corresponding to the fault channels. According to the method, breakthrough progress is achieved in multiple dimensions such as real-time performance, control precision and system reliability, and a superior-performance, safe and reliable frontier solution is provided for the control field of the neutral beam injector and even the whole nuclear fusion device.

Description

Technical Field

[0001] This invention relates to the field of control and fault diagnosis technology for nuclear fusion experimental devices, and in particular, to an adaptive recovery control system and method for neutral beam injector ignition. Background Technology

[0002] Neutral beam injection is a key technology in magnetic confinement fusion devices used for plasma heating and current driving. During operation, the internal high-voltage power supply and other components of the neutral beam injector are under extremely high electrical stress for extended periods, leading to arcing (i.e., "high-voltage breakdown"), which is an inherent and frequent physical phenomenon. Violent arcing generates powerful transient electric arcs, which not only momentarily interrupt the injection of high-energy beams and disrupt the continuity of the experiment, but also cause irreversible physical damage to expensive core components such as the accelerator grid due to their cumulative effects, resulting in extremely high repair costs and lengthy repair cycles.

[0003] Currently, most mainstream neutral beam injection systems both domestically and internationally are equipped with basic spark detection and protection mechanisms. Existing technologies largely utilize the timing and logic control functions built into the neutral beam injector to achieve system-level spark detection and automatic restart under fixed parameters (i.e., the "spark restart" function), reducing manual intervention to some extent. However, as nuclear fusion experiments continue to evolve towards longer pulses, higher parameters, and steady-state operation, existing technologies are gradually revealing the following structural defects and limitations in practical applications:

[0004] (1) Real-time bottleneck and system reliability issues: The operating system it relies on is essentially a non-real-time system, with millisecond-level or even higher uncertain delays in task scheduling and interrupt response. This makes it difficult for the system to guarantee that the response time from the occurrence of an arcing event to the execution of protection disconnection is stable at the microsecond level. In extreme cases, protection delays may exacerbate equipment damage. At the same time, the complexity and versatility of the operating system also pose challenges to stability and anti-interference capabilities in industrial control scenarios that require continuous and stable operation 24 / 7.

[0005] (2) The control strategy is crude and lacks refinement and adaptability: Existing technical solutions usually adopt a global control mode, that is, set a uniform threshold for the number of ignitions and recovery time parameters for the entire system or large subsystem. This approach cannot adapt to the differences in voltage level, physical characteristics and importance of multiple power channels (such as suppressor power supply, filament power supply, acceleration power supply, etc.) in the neutral beam injector. Frequent ignition of a non-critical channel may prematurely exhaust the global ignition count, causing the entire system to be stopped unnecessarily, which seriously restricts the availability of the system and experimental efficiency. In addition, its recovery strategy is often fixed and cannot be adaptively adjusted according to historical ignitions, which easily leads to a vicious cycle of "ignition-recovery-re-ignition".

[0006] (3) Technological dependence and supply chain risks: The core software and hardware platforms are deeply dependent on specific foreign manufacturers, posing potential supply chain security risks and technological blockade pressures. At the same time, systems based on graphical programming environments are less flexible and open than those based on text-based languages ​​such as C++ when implementing complex custom control algorithms, performing later maintenance and upgrades, and integrating with deeper data analysis systems.

[0007] Therefore, there is an urgent need in this field for an ignition control solution that can achieve breakthroughs in real-time performance, control precision, system reliability, and technological autonomy. This invention is proposed against this backdrop, aiming to overcome the shortcomings of existing technologies by employing a novel hardware and software technology stack and innovative control logic, providing a more robust and reliable control guarantee for next-generation nuclear fusion experimental devices. Summary of the Invention

[0008] The purpose of this invention is to provide a neutral beam injector arc adaptive recovery control system and method to solve the problem of insufficient control flexibility caused by the globally unified parameter management method.

[0009] To achieve the above objectives, the present invention provides an adaptive recovery control system for arcing in a neutral beam injector. The system includes: a channel-independent configuration module for configuring arcing recovery parameters for each of the multiple power channels in the neutral beam injector; a real-time monitoring and diagnostic module for acquiring voltage and current signals of each of the multiple power channels in real time, diagnosing arcing events of the multiple power channels based on the voltage and current signals using a multi-signal fusion diagnostic algorithm, identifying one or more faulty channels when an arcing event is diagnosed, and counting the arcing events of each faulty channel to obtain the number of arcing events for each faulty channel, wherein the faulty channel is the power channel where the arcing event occurred; a safety disconnection module for disconnecting the one or more faulty channels through a power controller; and a distributed control module for controlling the one or more faulty channels to resume operation based on the number of arcing events and the arcing recovery parameters corresponding to each faulty channel.

[0010] Preferably, the ignition recovery parameters include a threshold number configured for each power channel, and the distributed control module includes: an ignition detection unit, used to count the ignitions of each power channel to obtain the number of ignitions for each power channel, and to determine whether the number of ignitions for each faulty channel exceeds the threshold number for the corresponding power channel; and an adaptive recovery processing unit, used to control the corresponding faulty channel to resume operation when the number of ignitions does not exceed the threshold number for the corresponding power channel, and to control the corresponding faulty channel to perform a lockout when the number of ignitions exceeds the threshold number for the corresponding faulty channel.

[0011] Preferably, the arcing recovery parameters further include an initial waiting time, a voltage ramp recovery time, and a stabilization confirmation time configured for each power channel. The adaptive recovery processing unit controls the corresponding faulty channel to resume operation when the number of arcing events does not exceed the threshold number for the corresponding faulty channel. This includes: maintaining the initial waiting time for the corresponding faulty channel when the safety cut-off module cuts off the corresponding faulty channel; controlling the power output voltage of the corresponding faulty channel to ramp up from 0 to the rated operating voltage of the corresponding faulty channel at a preset slope after the initial waiting time ends, wherein the time for the power output voltage to rise from 0 to the rated operating voltage is the voltage ramp recovery time; maintaining the stabilization confirmation time for the corresponding faulty channel when the output voltage rises to the rated operating voltage of the corresponding faulty channel; and if the real-time monitoring and diagnostic module does not detect an arcing event in the corresponding faulty channel during the voltage ramp recovery time and the stabilization confirmation time, the corresponding faulty channel resumes operation; if the real-time monitoring and diagnostic module detects an arcing event in the corresponding faulty channel, it updates the number of arcing events for the corresponding power channel and the safety cut-off module cuts off the corresponding faulty channel.

[0012] Preferably, the real-time monitoring and diagnosis module includes: a voltage monitoring unit, configured to acquire voltage signals of each of the plurality of power channels, calculate the voltage fluctuation rate of each power channel based on the voltage signals, and record the duration for which the voltage fluctuation rate exceeds the voltage safety threshold when the voltage fluctuation rate exceeds the voltage safety threshold, and denot this as the voltage fluctuation duration, wherein the voltage safety threshold is a preset threshold for the voltage fluctuation rate; a current monitoring unit, configured to acquire current signals of each of the plurality of power channels, calculate the current fluctuation rate of each power channel based on the current signals, and record the duration for which the current fluctuation rate exceeds the current safety threshold when the current fluctuation rate exceeds the current safety threshold, and denot this as the current fluctuation duration, wherein the current safety threshold is a preset threshold for the current fluctuation rate; and a diagnosis unit, configured to diagnose a faulty channel when one of the plurality of power channels simultaneously exhibits the following conditions: the voltage fluctuation rate exceeds the voltage safety threshold, the current fluctuation rate exceeds the current safety threshold, the voltage fluctuation duration or the current fluctuation duration is within a preset effective fluctuation duration window.

[0013] Preferably, the plurality of power channels include an accelerating power channel, a suppressor power channel, and a deflector magnet power channel. The safety cut-off module cuts off one or more fault channels via the power controller by: when the fault channel is the accelerating power channel, outputting a 0-5V shutdown signal to the power controller within a first predetermined time to cut off the accelerating power channel; when the fault channel is the suppressor power channel, outputting a low-level shutdown signal to the power controller within a second predetermined time to cut off the suppressor power channel; and when the fault channel is the deflector magnet power channel, outputting a 4-20mA shutdown signal to the power controller within a third predetermined time to cut off the deflector magnet power channel; wherein the first predetermined time, the second predetermined time, and the third predetermined time are all in the microsecond range.

[0014] Preferably, the plurality of power channels include an accelerating power channel, a suppressor power channel, and a deflector magnet power channel, wherein: the arc recovery parameters configured for the accelerating power channel include: a threshold number of times of arc recovery (3 times), an initial waiting time of 60 ms, a voltage ramp recovery time of 150 ms, and a stabilization confirmation time of 80 ms; the arc recovery parameters configured for the suppressor power channel include: a threshold number of times of arc recovery (5 times), an initial waiting time of 40 ms, a voltage ramp recovery time of 100 ms, and a stabilization confirmation time of 50 ms; and the arc recovery parameters configured for the deflector magnet power channel include: a threshold number of times of arc recovery (8 times), an initial waiting time of 30 ms, a voltage ramp recovery time of 80 ms, and a stabilization confirmation time of 40 ms.

[0015] Accordingly, the present invention also provides an adaptive recovery control method for arcing in a neutral beam injector. The method includes: configuring arcing recovery parameters for each of the plurality of power channels in the neutral beam injector; real-time acquisition of voltage and current signals of each of the plurality of power channels; diagnosing arcing events of the plurality of power channels based on the voltage and current signals using a multi-signal fusion diagnostic algorithm; identifying one or more faulty channels when an arcing event is diagnosed and counting the arcing events for each faulty channel to obtain the number of arcing events for each faulty channel, wherein the faulty channel is the power channel where the arcing event occurred; disconnecting the one or more faulty channels using a power controller; and controlling the one or more faulty channels to resume operation based on the number of arcing events and the arcing recovery parameters corresponding to each faulty channel.

[0016] Preferably, the ignition recovery parameters include a threshold number configured for each power channel. The step of controlling the recovery of one or more faulty channels according to the ignition count and ignition recovery parameters corresponding to each faulty channel includes: counting the ignition count for each power channel to obtain the ignition count for each power channel; determining whether the ignition count for each faulty channel exceeds the threshold number for the corresponding power channel; and controlling the corresponding faulty channel to resume operation when the ignition count does not exceed the threshold number for the corresponding power channel, and controlling the corresponding faulty channel to perform a lockout when the ignition count exceeds the threshold number for the corresponding faulty channel.

[0017] Preferably, the arcing recovery parameters further include an initial waiting time, a voltage ramp recovery time, and a stabilization confirmation time configured for each power channel. If the number of arcing events does not exceed the threshold value for the corresponding fault channel, the corresponding fault channel is controlled to resume operation, including: maintaining the initial waiting time for the corresponding fault channel when it is disconnected; controlling the power output voltage of the corresponding fault channel to ramp up from 0 to the rated operating voltage of the corresponding fault channel at a preset slope after the initial waiting time ends, wherein the time for the power output voltage to rise from 0 to the rated operating voltage is the voltage ramp recovery time; maintaining the stabilization confirmation time for the corresponding fault channel when the output voltage rises to the rated operating voltage of the corresponding fault channel; and if no arcing event is diagnosed in the corresponding fault channel during the voltage ramp recovery time and the stabilization confirmation time, the corresponding fault channel resumes operation; if an arcing event is diagnosed in the corresponding fault channel, the number of arcing events for the corresponding power channel is updated and the corresponding fault channel is disconnected.

[0018] Preferably, the neutral beam injector arc adaptive recovery control method provided by the present invention further includes: acquiring the voltage signal of each of the plurality of power channels, calculating the voltage mutation rate of each power channel based on the voltage signal, and recording the duration of the voltage mutation rate being greater than the voltage safety threshold when the voltage mutation rate is greater than the voltage safety threshold, and denoting it as the voltage mutation duration, wherein the voltage safety threshold is a preset threshold for the voltage mutation rate; acquiring the current signal of each of the plurality of power channels, calculating the current mutation rate of each power channel based on the current signal, and recording the duration of the current mutation rate being greater than the current safety threshold when the current mutation rate is greater than the current safety threshold, and denoting it as the current mutation duration, wherein the current safety threshold is a preset threshold for the current mutation rate; and diagnosing a faulty channel when one of the plurality of power channels simultaneously exhibits the following conditions: the voltage mutation rate is greater than the voltage safety threshold, the current mutation rate is greater than the current safety threshold, the voltage mutation duration or the current mutation duration is within a preset effective mutation duration window.

[0019] The beneficial effects of this invention are as follows:

[0020] The technical solution provided by this invention achieves breakthroughs in multiple dimensions such as real-time performance, control accuracy, and system reliability, providing a high-performance, safe, and reliable cutting-edge solution for neutral beam injectors and even the entire field of nuclear fusion device control, as detailed below:

[0021] (1) A deterministic leap in protection response time has been achieved, fundamentally improving system reliability. By replacing the traditional non-real-time system with a real-time operating system, the system response time has been optimized from millisecond-level uncertain delay to microsecond-level deterministic response, eliminating the risk of protection delay caused by the uncertainty of operating system task scheduling, and ensuring that diagnosis and cut-off can be completed within the first cycle of ignition under any working condition. Actual test data show that the entire time from ignition signal recognition to protection command output is stable within 10μs;

[0022] (2) A breakthrough in control granularity has been achieved, significantly improving system availability and experimental efficiency. Through the independent parameter configuration and management mechanism of each channel, the traditional "one-size-fits-all" global control mode has been completely changed. In terms of differentiated protection, it allows setting exclusive arcing thresholds and arcing recovery parameters according to the voltage level, physical characteristics and importance of different power channels. In terms of fault localization isolation, when a single power channel reaches the arcing limit, only the corresponding power channel is locked, while other normal power channels continue to operate (the channel interlocking can be dynamically adjusted based on experimental requirements). This avoids the drawback of "one channel failure, the whole system shuts down" in the traditional system. Practical application shows that this feature improves the availability of the system in long pulse experiments by more than 40%, greatly reducing experimental interruptions caused by non-critical channel failures.

[0023] (3) Through intelligent adaptive recovery strategy, the risk of secondary arcing and equipment damage is greatly reduced. The three-stage configurable recovery process (deionization → ramp recovery → stability confirmation) replaces the traditional fixed delay recovery. The parameters of each stage can be optimized independently according to the characteristics of the power channel, realizing the transformation from "blind recovery" to "intelligent adaptation". The flexible recovery mechanism (voltage ramp rise) effectively suppresses current surges and reduces the probability of secondary arcing during the recovery process. Through dynamic arcing counting and decision-making mechanism, the system can automatically identify permanent faults and lock the corresponding power channel in time, avoiding cumulative damage to the equipment.

[0024] (4) Based on the text-based development model, it has significant advantages over graphical programming in terms of the flexibility of algorithm implementation, the depth of system integration, and the convenience of later maintenance.

[0025] (5) Improved overall system performance and scalability. The modular software architecture loosely couples the functional modules, facilitating functional expansion and customization. The distributed decision-making mechanism provides good architectural support for the expansion of system scale. The increase in the number of channels will not affect real-time performance. The standardized communication interface facilitates integration with the upper-level experimental control system, laying the foundation for building a digital and intelligent fusion device control system. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a block diagram of the neutral beam injector arc adaptive recovery control system provided by the present invention;

[0028] Figure 2 This is a block diagram of another neutral beam injector arc adaptive recovery control system provided by the present invention;

[0029] Figure 3 This is a flowchart of the neutral beam injector arc adaptive recovery control method provided by the present invention. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other. To achieve the above objectives, this invention adopts the following technical solution.

[0031] Figure 1 This is a block diagram of the neutral beam injector arc adaptive recovery control system provided by the present invention, as shown below. Figure 1 As shown, the system includes a channel independent configuration module 10, a real-time monitoring and diagnosis module 20, a safety disconnection module 30, and a distributed control module 40.

[0032] The channel-independent configuration module 10 is used to configure arc recovery parameters for each of the multiple power channels in the neutral beam injector.

[0033] The neutral beam injector, also known as the neutral beam injection system, uses arc recovery parameters to restore the operation of a power channel (i.e., the faulty channel as defined below) in the event of an arcing event. Generally, the neutral beam injector uses multiple power channels. In this invention, arc recovery parameters are configured separately for each power channel. That is, the arc recovery parameters for each power channel are independent. In the event of arcing events in multiple power channels, the recovery process of each power channel does not affect each other.

[0034] The real-time monitoring and diagnosis module 20 is used to collect the voltage and current signals of each of the multiple power channels in real time. It uses a multi-signal fusion diagnosis algorithm to diagnose the arcing events of the multiple power channels based on the voltage and current signals. When an arcing event is diagnosed, one or more fault channels are obtained and the arcing count is performed on each fault channel to obtain the number of arcing events for each fault channel. The fault channel is the power channel where the arcing event occurred.

[0035] The real-time monitoring and diagnostic module 20 diagnoses arcing events on multiple power channels and marks the power channels where arcing events are detected as faulty channels. If an arcing event is detected on one power channel, that power channel is marked as a faulty channel. If arcing events are detected on multiple power channels, all power channels with arcing events are marked as faulty channels. Therefore, the real-time monitoring and diagnostic module 20 may identify one or more faulty channels. When an arcing event is detected, the real-time monitoring and diagnostic module 20 performs arcing counts. The real-time monitoring and diagnostic module 20 performs arcing counts independently for each faulty channel. If multiple faulty channels exist, arcing counts are performed separately for each of the multiple faulty channels. For example, if there are three faulty channels, the counts are performed separately for each of the three faulty channels, resulting in three arcing counts, each corresponding to one faulty channel.

[0036] The safety disconnect module 30 is used to disconnect one or more faulty channels via the power controller. When the safety disconnect module 30 detects a faulty channel, it sends a shutdown command (such as a hard-wired shutdown command) to the power controller of the faulty channel. If there is only one faulty channel, the shutdown command is sent only to the power controller of that single faulty channel; if there are multiple faulty channels, the shutdown command is sent to the power controllers of all of them. It should be noted that this invention only describes the safety disconnect module 30 disconnecting faulty channels (i.e., it may be one or multiple faulty channels) via the power controller. In other words, non-faulty channels continue to operate; these non-faulty channels are the power channels for which the real-time monitoring and diagnostic module 20 has not detected any arcing events.

[0037] The distributed control module 40 is used to control one or more faulty channels to resume operation based on the number of ignitions and ignition recovery parameters corresponding to each faulty channel. Each faulty channel corresponds to one number of ignitions, and each faulty channel (a power channel if no ignition event occurs) corresponds to one ignition recovery parameter; that is, one faulty channel corresponds to one number of ignitions and one set of ignition recovery parameters. Specifically, for a faulty channel, the distributed control module 40 controls the faulty channel to resume operation based on the number of ignitions and ignition recovery parameters corresponding to that faulty channel. In the case of multiple faulty channels, taking two faulty channels as an example (which can be referred to as the first faulty channel and the second faulty channel respectively), the distributed control module 40 controls the first faulty channel to resume operation based on the number of ignitions and ignition recovery parameters corresponding to the first faulty channel, and controls the second faulty channel to resume operation based on the number of ignitions and ignition recovery parameters corresponding to the second faulty channel.

[0038] Figure 2 This is a block diagram of another neutral beam injector arcing adaptive recovery control system provided by the present invention. The arcing recovery parameters include threshold numbers configured for each power channel, such as... Figure 2 As shown, the distributed control module 40 includes an arc detection unit 41 and an adaptive recovery processing unit 42. The arc detection unit 41 counts the arcs for each power channel to obtain the number of arcs for each power channel, and determines whether the number of arcs for each faulty power channel exceeds a threshold value for that power channel. The adaptive recovery processing unit 42 controls the corresponding faulty channel to resume operation when the number of arcs does not exceed the threshold value, and controls the corresponding faulty channel to be locked when the number of arcs exceeds the threshold value. If the number of arcs exceeds the threshold value for the corresponding faulty channel, those skilled in the art can also select an appropriate operation procedure as needed, such as stopping the experiment.

[0039] The ignition threshold is a threshold configured for each power channel to limit the number of ignition events. When an ignition event occurs in a power channel, the ignition detection unit 41 counts the ignition events and records them as ignition counts, and determines whether the ignition count exceeds the threshold. The ignition detection unit 41 counts ignition events for each power channel separately, and specifically checks whether the ignition count for each faulty channel exceeds the corresponding threshold. The adaptive recovery processing unit 42 also controls each faulty channel to either resume operation or execute a lockout based on the judgment result of the ignition detection unit 41 for each faulty channel (i.e., whether the ignition count exceeds the threshold).

[0040] The following example still uses the case of two fault channels, that is, two power channels that have experienced arcing events, namely the first fault channel and the second fault channel. The first fault channel corresponds to the first power channel, and the second fault channel corresponds to the second power channel. The number of times threshold configured for the first power channel is called the first number threshold, and the number of times threshold configured for the second power channel is called the second number threshold.

[0041] For the first power channel, the arcing detection unit 41 records the arcing count as 1 when an arcing event occurs in the first power channel. During the recovery process of the first faulty channel (corresponding to the first power channel), the arcing event count of the first faulty channel is counted. If another arcing event occurs, the arcing count is recorded as 2, and so on, and it is determined whether the arcing count of the first power channel exceeds the first count threshold. If the arcing count of the first power channel does not exceed the first count threshold, the adaptive recovery processing unit 42 controls the first faulty channel to resume operation. If the arcing count of the first power channel exceeds the first count threshold, the adaptive recovery processing unit 42 controls the first faulty channel to perform a lockout.

[0042] For the second power channel, the ignition detection unit 41 records the ignition count as 1 when an ignition event occurs in the second power channel. During the recovery process of the second faulty channel (corresponding to the second power channel), the ignition event count of the second faulty channel is recorded. If another ignition event occurs, the ignition count is recorded as 2, and so on, and it is determined whether the ignition count of the second power channel exceeds the second threshold. If the ignition count of the second power channel does not exceed the second threshold, the adaptive recovery processing unit 42 controls the second faulty channel to resume operation. If the ignition count of the second power channel exceeds the second threshold, the adaptive recovery processing unit 42 controls the second faulty channel to perform a lockout.

[0043] As can be seen from the above examples, the first and second count thresholds are independent of each other, the ignition count for the first power channel is independent of the ignition count for the second power channel, and the control of the first and second fault channels by the adaptive recovery processing unit 42 is also independent of each other. To explain further, if the number of ignitions in the first power channel exceeds the first count threshold but the number of ignitions in the second power channel does not exceed the second count threshold, the adaptive recovery processing unit 42 only controls the first fault channel to perform a lockout while the second fault channel resumes operation. Similarly, if the number of ignitions in the first power channel does not exceed the first count threshold but the number of ignitions in the second power channel exceeds the second count threshold, the adaptive recovery processing unit 42 only controls the second fault channel to perform a lockout while the first fault channel resumes operation.

[0044] Furthermore, if the number of ignitions in the first fault channel exceeds the threshold for the first time, the corresponding first power channel will be locked out, but this will not affect the normal operation of the second power channel.

[0045] In this invention, the arcing recovery parameters also include an initial waiting time, a voltage ramp recovery time, and a stabilization confirmation time configured for each power channel. The adaptive recovery processing unit 42 controls the corresponding faulty channel to resume operation when the number of arcing events does not exceed the threshold number for the corresponding faulty channel. This includes: maintaining the initial waiting time for the corresponding faulty channel when the safety cut-off module cuts off the corresponding faulty channel; controlling the power output voltage of the corresponding faulty channel to ramp up from 0 to the rated operating voltage of the corresponding faulty channel at a preset slope after the initial waiting time ends, with the time for the power output voltage to rise from 0 to the rated operating voltage being the voltage ramp recovery time; maintaining the stabilization confirmation time for the corresponding faulty channel when the output voltage rises to the rated operating voltage of the corresponding faulty channel; and if the real-time monitoring and diagnosis module 20 does not detect an arcing event in the corresponding faulty channel during the voltage ramp recovery time and stabilization confirmation time, then the corresponding faulty channel resumes operation; if the real-time monitoring and diagnosis module 20 detects an arcing event in the corresponding faulty channel, then the number of arcing events for the corresponding power channel is updated and the safety cut-off module 30 cuts off the corresponding faulty channel.

[0046] The adaptive recovery processing unit 42 controls the recovery process of the fault channel, which can be divided into three stages, namely the initial waiting stage, the voltage ramp recovery stage, and the stability confirmation stage. In the initial waiting stage, the initial waiting time is maintained to ensure that the arcing arc is fully extinguished and the residual plasma dissipates. In the voltage ramp recovery stage, the corresponding power supply output voltage is controlled to rise from 0 to the rated operating voltage at a gradual slope. The time for the power supply output voltage to rise from 0 to the rated operating voltage is the voltage ramp recovery time, to suppress inrush current. In the stability confirmation stage, the stability confirmation time is maintained to verify the stability of the system under the rated operating voltage. During the fault channel recovery process, i.e., in the voltage ramp recovery stage (corresponding to the voltage ramp recovery time) and the stability confirmation stage (corresponding to the stability confirmation time), if the corresponding fault channel experiences another arcing event, the safety cut-off module 30 cuts off the corresponding fault channel again. In this case, the arcing detection unit 41 updates the arcing count of the corresponding power channel by incrementing it by 1. The adaptive recovery processing unit 42 restarts a new round of fault channel recovery operation based on the updated arcing count and the corresponding arcing recovery parameters.

[0047] In the technical solution provided by this invention, arcing recovery parameters are configured for each power channel. Correspondingly, an initial waiting time, a voltage ramp recovery time, and a stabilization confirmation time are configured for each power channel. Taking the case of two faulty channels as an example, where arcing events occur in two power channels—the first faulty channel and the second faulty channel—the arcing recovery parameters configured for the first power channel include a first initial waiting time, a first voltage ramp recovery time, and a first stabilization confirmation time. Similarly, the arcing recovery parameters configured for the second power channel include a second initial waiting time, a second voltage ramp recovery time, and a second stabilization confirmation time.

[0048] For the first faulty channel, during the initial waiting phase: maintain the first initial waiting time; during the voltage ramp recovery phase: control the corresponding power supply output voltage to rise from 0 to the rated operating voltage of the first power supply channel at a gradual slope, and the time for the power supply output voltage to rise from 0 to the rated operating voltage of the first power supply channel is the first voltage ramp recovery time; during the stabilization confirmation phase: maintain the first stabilization confirmation time. If an arcing event occurs again during the recovery process (including the voltage ramp recovery phase and the stabilization confirmation phase), the safety cut-off module 30 cuts off the first faulty channel again, and the arcing detection unit 41 updates the arcing count of the first power supply channel (i.e., increments by 1), and determines whether the updated arcing count of the first power supply channel exceeds the arcing count threshold of the first power supply channel. The adaptive recovery processing unit 42 controls whether the first faulty channel resumes operation or executes a lockout based on the judgment result of the arcing detection unit 41. If no arcing event occurs during the recovery process (including the voltage ramp recovery phase and the stabilization confirmation phase), the first power supply channel resumes operation.

[0049] For the second faulty channel, during the initial waiting phase: maintain the second initial waiting time; during the voltage ramp recovery phase: control the corresponding power supply output voltage to rise from 0 to the rated operating voltage of the second power supply channel at a gradual slope, and the time for the power supply output voltage to rise from 0 to the rated operating voltage of the second power supply channel is the second voltage ramp recovery time; during the stabilization confirmation phase: maintain the second stabilization confirmation time. If an arcing event occurs again during the recovery process (including the voltage ramp recovery phase and the stabilization confirmation phase), the safety cut-off module 30 cuts off the second faulty channel again, and the arcing detection unit 41 updates the arcing count of the second power supply channel (i.e., increments by 1), and determines whether the updated arcing count of the second power supply channel exceeds the arcing count threshold of the second power supply channel. The adaptive recovery processing unit 42 controls whether the second faulty channel resumes operation or executes a lockout based on the judgment result of the arcing detection unit 41. If no arcing event occurs during the recovery process (including the voltage ramp recovery phase and the stabilization confirmation phase), the second power supply channel resumes operation.

[0050] Furthermore, if the number of ignitions in a power channel reaches the threshold set for that power channel, then that power channel will be locked out, while other power channels will continue to operate normally, thereby achieving effective fault isolation.

[0051] like Figure 2 As shown, the real-time monitoring and diagnostic module 20 includes a voltage monitoring unit 21, a current monitoring unit 22, and a diagnostic unit 23. The voltage monitoring unit 21 is used to collect the voltage signal of each power channel among multiple power channels, calculate the voltage fluctuation rate of each power channel based on the voltage signal, and record the duration of the voltage fluctuation rate exceeding the voltage safety threshold when the voltage fluctuation rate is greater than the voltage safety threshold, and denot it as the voltage fluctuation duration. The voltage safety threshold is a preset threshold for the voltage fluctuation rate. The current monitoring unit 22 is used to collect the current signal of each power channel among multiple power channels, calculate the current fluctuation rate of each power channel based on the current signal, and record the duration of the current fluctuation rate exceeding the current safety threshold when the current fluctuation rate is greater than the current safety threshold, and denot it as the current fluctuation duration. The current safety threshold is a preset threshold for the current fluctuation rate. The diagnostic unit 23 is used to diagnose a faulty channel when one of the multiple power channels simultaneously exhibits the following conditions: voltage fluctuation rate greater than the voltage safety threshold, current fluctuation rate greater than the current safety threshold, voltage fluctuation duration, or the current fluctuation duration is within a preset effective fluctuation duration window.

[0052] In the case of multiple power channels, the arcing event is diagnosed separately for each power channel. That is, a power channel is diagnosed as a faulty channel if it meets the following three conditions at the same time: (1) the voltage mutation rate is greater than the voltage safety threshold; (2) the current mutation rate is greater than the current safety threshold; (3) the voltage mutation duration or the current mutation duration is within the pre-set effective mutation duration window.

[0053] In the technical solution provided by this invention, different voltage safety thresholds and current safety thresholds can be set for different power channels. Taking the case of two faulty channels as an example, where two power channels experienced arcing events, namely the first faulty channel and the second faulty channel, the first power channel corresponds to the first faulty channel, and the second power channel corresponds to the second faulty channel. Both the first and second power channels are equipped with voltage safety thresholds and current safety thresholds. The first power channel corresponds to the first voltage safety threshold and the first current safety threshold, while the second power channel corresponds to the second voltage safety threshold and the second current safety threshold.

[0054] For the first power channel, if the following three conditions are met, it is diagnosed as a fault channel: (1) the voltage mutation rate of the first power channel is greater than the first voltage safety threshold; (2) the current mutation rate of the first power channel is greater than the first current safety threshold; (3) the voltage mutation duration or the current mutation duration is within the preset effective mutation duration window of the first power channel.

[0055] For the second power channel, if the following three conditions are met, it is diagnosed as a fault channel: (1) the voltage mutation rate of the second power channel is greater than the second voltage safety threshold; (2) the current mutation rate of the second power channel is greater than the second current safety threshold; (3) the voltage mutation duration or the current mutation duration is within the preset effective mutation duration window of the second power channel.

[0056] The present invention will be described in more detail below through specific embodiments. The multiple power channels in the present invention include an acceleration power channel, a suppression power channel, and a deflection magnet power channel. The safety cut-off module 30 cuts off one or more fault channels through the power controller, including: when the fault channel is the acceleration power channel, outputting a 0-5V shutdown signal to the power controller within a first predetermined time to cut off the acceleration power channel; when the fault channel is the suppression power channel, outputting a low-level shutdown signal to the power controller within a second predetermined time to cut off the suppression power channel; when the fault channel is the deflection magnet power channel, outputting a 4-20mA shutdown signal to the power controller within a third predetermined time to cut off the deflection magnet power channel; wherein the first predetermined time, the second predetermined time, and the third predetermined time are all in the microsecond range.

[0057] After the real-time monitoring and diagnostic module 20 detects an arcing event, protection can be implemented in the following ways:

[0058] For the acceleration power supply: A 0-5V shutdown signal is output to the power controller within a first predetermined time to cut off the acceleration power supply channel. The first predetermined time can be 8... ;

[0059] For the suppressor power supply: A low-level shutdown signal is output to the power controller within a second predetermined time to cut off the suppressor power supply channel. The second predetermined time can be 6 seconds. The low level can be a TTL low level (Transistor-Transistor Logic Low Level).

[0060] For the deflection magnet power supply channel: A 4-20mA shutdown signal is output to the power controller within a third predetermined time period to cut off the deflection magnet power supply channel. The third predetermined time period can be 10... .

[0061] In another embodiment, the multiple power channels of the present invention include an accelerating power channel, a suppressor power channel, and a deflector magnet power channel, wherein: the arc recovery parameters configured for the accelerating power channel include: a threshold of 3 arcs, an initial waiting time of 60ms, a voltage ramp recovery time of 150ms, and a stabilization confirmation time of 80ms; the arc recovery parameters configured for the suppressor power channel include: a threshold of 5 arcs, an initial waiting time of 40ms, a voltage ramp recovery time of 100ms, and a stabilization confirmation time of 50ms; and the arc recovery parameters configured for the deflector magnet power channel include: a threshold of 8 arcs, an initial waiting time of 30ms, a voltage ramp recovery time of 80ms, and a stabilization confirmation time of 40ms.

[0062] In this embodiment, the arcing recovery parameters configured for the accelerating power channel, the suppressor power channel, and the deflection magnet power channel are different. The following description uses the accelerating power channel as an example. Specifically, when an arcing event occurs in the accelerating power channel (i.e., the accelerating power channel is marked as a faulty channel, and the number of arcing events in the accelerating power channel does not exceed 3 times (the threshold for the accelerating power channel is 3 times), the recovery process is as follows:

[0063] Initial waiting phase: maintained for 60ms, that is, the initial waiting time is 60ms to ensure that the plasma generated by the ignition completely dissipates;

[0064] Voltage ramp recovery phase: The power supply output voltage rises steadily from 0kV to the rated voltage of 60kV at a slope of 0.8kV / ms, taking 150ms. That is, the voltage ramp recovery time is 150ms.

[0065] Stability confirmation phase: Maintaining 60kV for 80ms, i.e., the stability confirmation time is 80ms. The stability is confirmed by the real-time monitoring and diagnosis module 20, i.e., the real-time monitoring and diagnosis module 20 does not detect the sparking event again.

[0066] If an arcing event occurs again in the acceleration power channel during the recovery process (including the voltage ramp recovery phase and the stability confirmation phase), i.e., during the voltage ramp recovery time and the stability confirmation time, the current recovery process is immediately interrupted, the safety disconnect module 30 disconnects the acceleration power channel, and the arcing count of the acceleration power channel is incremented by 1. The initial waiting time, voltage ramp recovery time, and stability confirmation time can all be timed by a timer configured for each power channel.

[0067] The neutral beam injector arcing adaptive recovery control system (specifically the real-time monitoring and diagnostic module 20) provided by this invention also configures an independent arcing counter for each power channel. Taking the acceleration power channel as an example, when an arcing event occurs for the first time in the acceleration power channel, the counter increments from 0 to 1 (the number of arcing events is recorded as 1), triggering the fault channel recovery process. If an arcing event occurs again during the fault channel recovery process, i.e., the voltage ramp recovery stage or the stabilization confirmation stage, the counter increments by 2 (the number of arcing events is recorded as 2), and returns to the initial waiting time. If an arcing event occurs again during the fault channel recovery process, i.e., the voltage ramp recovery stage or the stabilization confirmation stage, the counter increments by 3 (the number of arcing events is recorded as 3). Since the arcing event threshold configured for the acceleration power channel is 3 times, channel locking is executed, i.e., acceleration power channel locking.

[0068] In the embodiments provided by this invention, taking the acceleration power channel as an example, the voltage safety threshold of the acceleration power channel can be set to 35V / The current safety threshold for the accelerated power supply channel can be set to 8A / Accelerate the effective abrupt change duration window of the power channel It can be set to 2 < <15 Taking the suppressor power supply channel as an example, the voltage safety threshold of the suppressor power supply channel can be set to 15V / The current safety threshold for the suppressor power supply channel can be set to 5A / The effective duration window for suppressing abrupt changes in the power supply channel It can be set to 2 < <15 .

[0069] The software modules of the neutral beam injector ignition adaptive recovery control system provided by this invention can adopt a multi-threaded architecture. The real-time monitoring and diagnostic module and the safety disconnection logic module run on high-priority threads scheduled by the Linux real-time kernel, while the human-machine interaction and data recording functions run on ordinary-priority threads, thus balancing real-time performance and user experience. The system provided by this invention may also include a real-time data communication interface for status reporting and command reception with the neutral beam injection main controller. The real-time data communication interface uses a network protocol with a verification mechanism or a hardware trigger signal to ensure reliable communication.

[0070] Figure 3 This is a flowchart of the neutral beam injector arc adaptive recovery control method provided by the present invention, as shown below. Figure 3 As shown, the method includes:

[0071] Step S301: Configure arc recovery parameters for each of the multiple power channels in the neutral beam injector.

[0072] Step S302: Real-time acquisition of voltage and current signals of each power channel in multiple power channels; diagnosis of arcing events of multiple power channels based on voltage and current signals using a multi-signal fusion diagnostic algorithm; identification of one or more fault channels when an arcing event is detected; and arcing count of each fault channel to obtain the number of arcing events for each fault channel, wherein the fault channel is the power channel in which the arcing event occurred.

[0073] Step S303: Disconnect one or more faulty channels via the power controller;

[0074] Step S304: Control one or more faulty channels to resume operation according to the number of ignitions and ignition recovery parameters corresponding to each faulty channel.

[0075] The ignition recovery parameters include a threshold number of times configured for each power channel. Controlling one or more faulty channels to resume operation based on the ignition count and ignition recovery parameters for each faulty channel includes: counting the ignition count for each power channel to obtain the ignition count for each power channel; determining whether the ignition count for each faulty channel exceeds the threshold number for the corresponding power channel; controlling the corresponding faulty channel to resume operation if the ignition count does not exceed the threshold number for the corresponding power channel; and controlling the corresponding faulty channel to perform interlocking if the ignition count exceeds the threshold number for the corresponding faulty channel.

[0076] The arcing recovery parameters also include initial waiting time, voltage ramp recovery time, and stabilization confirmation time configured for each power channel. If the number of arcing events does not exceed the threshold for the corresponding faulty channel, the corresponding faulty channel is controlled to resume operation. This includes: maintaining the initial waiting time for the corresponding faulty channel when it is disconnected; after the initial waiting time ends, controlling the power output voltage of the corresponding faulty channel to ramp up from 0 to the rated operating voltage of the corresponding faulty channel at a preset slope, with the time for the power output voltage to rise from 0 to the rated operating voltage being the voltage ramp recovery time; maintaining the stabilization confirmation time for the corresponding faulty channel when the output voltage rises to the rated operating voltage of the corresponding faulty channel; if no arcing event is detected in the corresponding faulty channel within the voltage ramp recovery time and stabilization confirmation time, the corresponding faulty channel resumes operation; if an arcing event is detected in the corresponding faulty channel, the number of arcing events for the corresponding power channel is updated and the corresponding faulty channel is disconnected.

[0077] The neutral beam injector arc adaptive recovery control method provided by the present invention further includes: acquiring the voltage signal of each of the multiple power channels, calculating the voltage mutation rate of each power channel based on the voltage signal, and recording the duration for which the voltage mutation rate is greater than the voltage safety threshold when the voltage mutation rate is greater than the voltage safety threshold, and denoting it as the voltage mutation duration, wherein the voltage safety threshold is a preset threshold for the voltage mutation rate; acquiring the current signal of each of the multiple power channels, calculating the current mutation rate of each power channel based on the current signal, and recording the duration for which the current mutation rate is greater than the current safety threshold when the current mutation rate is greater than the current safety threshold, and denoting it as the current mutation duration, wherein the current safety threshold is a preset threshold for the current mutation rate; diagnosing a faulty channel when one of the multiple power channels simultaneously exhibits the following conditions: voltage mutation rate greater than the voltage safety threshold, current mutation rate greater than the current safety threshold, voltage mutation duration, or the current mutation duration is within a preset effective mutation duration window.

[0078] It should be noted that the specific details and benefits of the neutral beam injector arc adaptive recovery control method provided by the present invention are similar to those of the neutral beam injector arc adaptive recovery control system provided by the present invention, and will not be repeated here.

[0079] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0080] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0081] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A neutral beam injector arc adaptive recovery control system, characterized in that, The system includes: A channel-independent configuration module is used to configure arc recovery parameters for each of the multiple power channels in the neutral beam injector. The real-time monitoring and diagnosis module is used to collect the voltage and current signals of each of the multiple power channels in real time, and diagnose the arcing events of the multiple power channels based on the voltage and current signals using a multi-signal fusion diagnosis algorithm. When an arcing event is diagnosed, one or more faulty channels are obtained, and the arcing count is performed on each faulty channel to obtain the number of arcing events for each faulty channel. The faulty channel is the power channel where the arcing event occurred. A safety disconnect module is configured to disconnect the one or more fault channels via a power controller; and, The distributed control module is used to control the recovery of one or more faulty channels according to the number of ignitions and ignition recovery parameters corresponding to each faulty channel.

2. The neutral beam injector arc adaptive recovery control system according to claim 1, characterized in that, The ignition recovery parameters include a threshold number of attempts configured for each power channel, and the distributed control module includes: The arc detection unit is used to count the arcs for each power channel to obtain the number of arcs for each power channel, and to determine whether the number of arcs for each faulty power channel exceeds the corresponding threshold; and, The adaptive recovery processing unit is used to control the corresponding faulty channel to resume operation when the number of ignitions does not exceed the threshold number of the corresponding power channel, and to control the corresponding faulty channel to perform a lockout when the number of ignitions exceeds the threshold number of the corresponding faulty channel.

3. The neutral beam injector arc adaptive recovery control system according to claim 2, characterized in that, The ignition recovery parameters also include an initial waiting time, voltage ramp recovery time, and stability confirmation time configured for each power channel. The adaptive recovery processing unit controls the corresponding faulty channel to resume operation when the number of ignition attempts does not exceed the threshold number for the corresponding faulty channel, including: When the safety disconnection module disconnects the corresponding faulty channel, the initial waiting time is maintained for the corresponding faulty channel. When the initial waiting time ends, the power output voltage of the corresponding fault channel is controlled to rise from 0 to the rated operating voltage of the corresponding fault channel at a preset slope. The time for the power output voltage to rise from 0 to the rated operating voltage is the voltage ramp recovery time. When the output voltage rises to the rated operating voltage of the corresponding faulty channel, the stability confirmation time is maintained for the corresponding faulty channel; and, During the voltage ramp recovery time and the stability confirmation time, if the real-time monitoring and diagnosis module does not detect an arcing event in the corresponding fault channel, the corresponding fault channel resumes operation. If the real-time monitoring and diagnosis module detects an arcing event in the corresponding fault channel, the arcing count of the corresponding power channel is updated and the safety disconnection module disconnects the corresponding fault channel.

4. The neutral beam injector arc adaptive recovery control system according to claim 1 or 3, characterized in that, The real-time monitoring and diagnostic module includes: A voltage monitoring unit is used to collect the voltage signal of each of the multiple power channels, calculate the voltage mutation rate of each power channel based on the voltage signal, and record the duration of the voltage mutation rate being greater than the voltage safety threshold when the voltage mutation rate is greater than the voltage safety threshold, and denot it as the voltage mutation duration. The voltage safety threshold is a preset threshold for the voltage mutation rate. A current monitoring unit is configured to acquire the current signal of each of the plurality of power channels, calculate the current mutation rate of each power channel based on the current signal, and record the duration for which the current mutation rate exceeds the current safety threshold when the current mutation rate exceeds the current safety threshold, denoted as the current mutation duration. The current safety threshold is a pre-set threshold for the current mutation rate. The diagnostic unit is used to diagnose a faulty channel when one of the multiple power channels simultaneously exhibits the following conditions: the voltage fluctuation rate is greater than the voltage safety threshold, the current fluctuation rate is greater than the current safety threshold, and the duration of the voltage fluctuation or the duration of the current fluctuation is within a pre-set effective fluctuation duration window.

5. The neutral beam injector arc adaptive recovery control system according to claim 4, characterized in that, The plurality of power channels include an acceleration power channel, a suppression electrode power channel, and a deflection magnet power channel. The safety disconnect module disconnects one or more fault channels via a power controller, including: If the faulty channel is the acceleration power channel, a 0-5V shutdown signal is output to the power controller within a first predetermined time to cut off the acceleration power channel. If the faulty channel is the suppressor power supply channel, a low-level shutdown signal is output to the power controller within a second predetermined time to cut off the suppressor power supply channel; and... If the fault channel is the deflection magnet power supply channel, a 4-20mA shutdown signal is output to the power controller within a third predetermined time to cut off the deflection magnet power supply channel. Wherein, the first predetermined time, the second predetermined time, and the third predetermined time are all in the microsecond range.

6. The neutral beam injector arc adaptive recovery control system according to claim 3, characterized in that, The plurality of power supply channels include an accelerating power supply channel, a suppressor power supply channel, and a deflector magnet power supply channel, wherein: The ignition recovery parameters configured for the acceleration power channel include: the number of times threshold is 3 times, the initial waiting time is 60ms, the voltage ramp recovery time is 150ms, and the stabilization confirmation time is 80ms; The arc recovery parameters configured for the suppressor power channel include: a threshold number of arcs of 5, an initial waiting time of 40ms, a voltage ramp recovery time of 100ms, and a stabilization confirmation time of 50ms; and, The arc recovery parameters configured for the deflection magnet power channel include: the number of times threshold is 8 times, the initial waiting time is 30ms, the voltage ramp recovery time is 80ms, and the stabilization confirmation time is 40ms.

7. A neutral beam injector arc adaptive recovery control method, characterized in that, The method includes: Configure arc recovery parameters for each of the multiple power channels in the neutral beam injector; The voltage and current signals of each of the multiple power channels are collected in real time. The multi-signal fusion diagnostic algorithm is used to diagnose the sparking events of the multiple power channels based on the voltage and current signals. If a sparking event is diagnosed, one or more faulty channels are obtained and the sparking count of each faulty channel is calculated to obtain the number of sparks for each faulty channel. The faulty channel is the power channel in which the sparking event occurred. Disconnect the one or more faulty channels via the power controller; and The one or more faulty channels are controlled to resume operation based on the number of ignitions and ignition recovery parameters corresponding to each faulty channel.

8. The neutral beam injector arc adaptive recovery control method according to claim 7, characterized in that, The ignition recovery parameters include a threshold number of times configured for each power channel. Controlling the recovery of one or more faulty channels based on the number of ignitions and the ignition recovery parameters corresponding to each faulty channel includes: For each power channel, an arc count is performed to obtain the arc count for each power channel. For each faulty channel, it is determined whether the arc count exceeds the corresponding arc count threshold for that power channel; and, If the number of ignitions does not exceed the threshold of the corresponding power channel, the corresponding faulty channel is controlled to resume operation; if the number of ignitions exceeds the threshold of the corresponding faulty channel, the corresponding faulty channel is controlled to be locked.

9. The neutral beam injector arc adaptive recovery control method according to claim 8, characterized in that, The ignition recovery parameters also include initial waiting time, voltage ramp recovery time, and stability confirmation time configured for each power channel. If the number of ignition attempts does not exceed the threshold for the corresponding faulty channel, the corresponding faulty channel is controlled to resume operation, including: In the event that the corresponding faulty channel is disconnected, the initial waiting time is maintained for the corresponding faulty channel; When the initial waiting time ends, the power output voltage of the corresponding fault channel is controlled to rise from 0 to the rated operating voltage of the corresponding fault channel at a preset slope. The time for the power output voltage to rise from 0 to the rated operating voltage is the voltage ramp recovery time. When the output voltage rises to the rated operating voltage of the corresponding faulty channel, the stability confirmation time is maintained for the corresponding faulty channel; and, If no arcing event is detected in the corresponding fault channel during the voltage ramp recovery time and the stability confirmation time, the corresponding fault channel resumes operation. If an arcing event is detected in the corresponding fault channel, the arcing count of the corresponding power channel is updated and the corresponding fault channel is disconnected.

10. The neutral beam injector arc adaptive recovery control method according to claim 7 or 9, characterized in that, The method also includes: The voltage signal of each of the multiple power channels is acquired, the voltage mutation rate of each power channel is calculated based on the voltage signal, and the duration of the voltage mutation rate being greater than the voltage safety threshold is recorded when the voltage mutation rate is greater than the voltage safety threshold and is recorded as the voltage mutation duration. The voltage safety threshold is a preset threshold for the voltage mutation rate. The system acquires the current signal of each of the multiple power channels, calculates the current mutation rate of each power channel based on the current signal, and records the duration for which the current mutation rate exceeds the current safety threshold, denoted as the current mutation duration, when the current mutation rate exceeds the current safety threshold. The current safety threshold is a pre-set threshold for the current mutation rate. A power channel is diagnosed as faulty when one of the multiple power channels simultaneously exhibits the following conditions: the voltage fluctuation rate is greater than the voltage safety threshold, the current fluctuation rate is greater than the current safety threshold, or the duration of the voltage fluctuation or the duration of the current fluctuation is within a pre-set effective fluctuation duration window.

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