Multi-phase regulated multi-terminal controlled impulse generator and pulse ignition system and method

Abstract

The application discloses a multi-phase regulated multi-terminal joint control impact generator and a pulse ignition system and method, the pulse ignition system comprising a control device and n sealed discharge gaps; the sealed discharge gaps are embedded with ignition devices and multi-phase monitoring components; the ignition devices make the sealed discharge gaps break down and discharge under pulse triggering; the multi-phase monitoring components are used for monitoring internal environmental data of the sealed discharge gaps and transmitting monitoring signals to the control device; the control device determines optimal gap spacing and environmental parameters according to the monitoring signals and the breakdown voltage, and adjusts the gap spacing and the environmental parameters of the sealed discharge gaps according to the optimal gap spacing and the environmental parameters, so that the gap spacing and the environmental parameters of the sealed discharge gaps meet optimal conditions required by gap breakdown. The application enables the ignition triggering device to accurately discharge within a microsecond error at a preset time, and reduces the influence of the environment on the dispersion of the discharge time.

Description

Technical Field

[0001] This invention relates to the field of high-voltage testing technology for power systems, specifically to a multi-phase controlled multi-terminal impulse generator and pulse ignition system and method. Background Technology

[0002] High-voltage impulse generators, as important electrical equipment, are mainly used to test the impact resistance and stability of electrical equipment. They are widely used in impulse tests on various high-voltage equipment and can also be used for other research experiments. They are widely used in fields such as power, nuclear physics, accelerators, and lasers.

[0003] The discharge process of the impact generator relies on the ignition device breaking down the air gap. Whether the air gap can be successfully broken down depends on whether the air pressure, temperature, humidity and other factors of the surrounding environment of the air gap match when the ignition is triggered.

[0004] Traditional mechanically adjustable trigger gaps are difficult to control effectively in terms of triggering time. While simple electrical and laser triggering methods have greatly improved triggering accuracy, current impact generator ignition devices are mainly designed for laboratory environments. In laboratories, environmental factors are relatively stable and have little impact on the normal operation of the impact generator. However, in complex outdoor climates and high-altitude areas, the impact generator is greatly affected by the environment, resulting in greater dispersion in triggering timing and a lower success rate of accurate triggering.

[0005] Meanwhile, current high-voltage testing involves numerous impact requirements, necessitating the coordinated timing of multiple impact devices or different sets of equipment. This places high demands on the discharge triggering timing and the triggering time intervals between different devices, typically requiring discharge timing accuracy at the microsecond level or even higher. Clearly, traditional triggering methods, with their dispersed triggering timing in complex environments, cannot meet this requirement. Summary of the Invention

[0006] Therefore, to address the problem that traditional triggering methods suffer from significant dispersion in triggering timing in complex environments, failing to meet the high-precision requirements of triggering timing and intervals for multi-terminal control, this invention provides a multi-phase modulated multi-terminal controllable impact generator and pulse ignition system and method. This invention enables the ignition triggering device to accurately discharge at a preset time within microsecond-level errors, reducing the impact of the environment on the dispersion of discharge timing, even in high-altitude or other complex climatic environments.

[0007] This invention is achieved through the following technical solution:

[0008] A multi-phase controlled multi-terminal pulse ignition system includes a control device and n sealed discharge gaps; n is an integer greater than or equal to 2.

[0009] An ignition device and a multiphase monitoring component are embedded in the sealed discharge gap;

[0010] The ignition device causes the sealed discharge gap to break down and discharge under pulse triggering; the multiphase monitoring component is used to monitor the internal environmental data of the sealed discharge gap and transmit the monitoring signal to the control device.

[0011] The control device determines the optimal gap spacing and environmental parameters based on the monitoring signal and breakdown voltage, and adjusts the gap spacing and environmental parameters of the sealed discharge gap according to the optimal gap spacing and environmental parameters so that the gap spacing and environmental parameters of the sealed discharge gap meet the optimal conditions required for gap breakdown.

[0012] In a preferred embodiment, the environmental parameters of the present invention include the air pressure, temperature and humidity within the discharge gap.

[0013] In a preferred embodiment, the system of the present invention further includes a pneumatic device;

[0014] The pneumatic device includes a compressor dryer and a grounding assembly;

[0015] The compressor dryer is connected to n sealed discharge gaps via conduits, enabling synchronous or independent control of air pressure and humidity within the n sealed discharge gaps;

[0016] The grounding component is connected to the compressor dryer via a conduit and is used to ground the pneumatic device after the capacitor discharges.

[0017] In a preferred embodiment, the connecting conduit between the compression dryer and the sealed discharge gap of the present invention is sealed using a sealing structure;

[0018] The connecting conduit between the compressor dryer and the grounding assembly is sealed using a sealed structure.

[0019] In a preferred embodiment, the system of the present invention further includes a timing controller;

[0020] The timing controller is used to control the ignition device to send a pulse signal to cause the discharge gap to break down and discharge when the capacitor voltage reaches the breakdown voltage.

[0021] In a preferred embodiment, the timing controller of the present invention is used to control the n sealed discharge gaps to break down and discharge according to a preset timing sequence.

[0022] In a preferred embodiment, the sealing discharge gap of the present invention employs a double-layer sealing structure to seal the discharge gap.

[0023] Secondly, this invention proposes a control method for a multi-terminal joint control ignition system based on the above-mentioned multi-phase regulation, including:

[0024] The environmental data inside the discharge gap is monitored by a multiphase monitoring component embedded inside the sealed discharge gap;

[0025] The optimal discharge gap spacing and environmental parameters are obtained based on the monitoring signal and breakdown voltage. Based on the optimal discharge gap spacing and environmental parameters, the internal environmental parameters and gap spacing of the discharge gap are adjusted so that the internal environmental parameters and gap spacing of the discharge gap meet the optimal conditions required for gap breakdown.

[0026] In a preferred embodiment, the method of the present invention further includes:

[0027] When the capacitor voltage reaches the breakdown voltage, the timing controller controls the ignition device to send a pulse signal to cause the discharge gap to break down and discharge.

[0028] Thirdly, the present invention proposes a multi-phase controlled multi-terminal impact generator, which uses the above-mentioned pulse ignition system to control the n discharge gaps to break down and discharge in a preset time sequence.

[0029] The present invention has the following advantages and beneficial effects:

[0030] Traditional techniques for controlling discharge voltage and timing by mechanically adjusting the discharge gap spacing suffer from significant errors in the spacing control of mechanical gears within the corresponding dimensions, resulting in considerable randomness in the discharge timing and making high-precision linkage control of multiple gaps difficult. This invention addresses this by sealing the discharge gap and employing a multi-dimensional control method combining mechanical regulation, air pressure regulation, and humidity regulation. Furthermore, it integrates multi-phase monitoring of environmental parameters, capacitor voltage, and gap spacing, along with electrical triggering, greatly improving the control accuracy of the discharge triggering timing and enhancing the reliability of multi-device linkage.

[0031] This invention employs a sealed discharge gap design with an independent internal control device, enabling the impulse current generator to complete normal ignition and breakdown operations in complex and variable climate areas such as high altitudes and areas with strong winds and sandstorms. This greatly reduces the impact of the environment on the accuracy of discharge timing control, providing technical support for the research on impulse discharge characteristics in high-altitude areas. It also prevents abnormal breakdowns caused by the variable climate in high-altitude areas, ensuring the accuracy and reliability of experimental results.

[0032] This invention has high control precision, with a gas pressure control precision of 0.1 kPa; the system control delay rate is low, reaching the level of 0.1 microseconds, which can ensure that multiple pressure gaps are discharged synchronously or in a preset sequence.

[0033] This invention is low in cost, highly practical in engineering, and less affected by environmental factors, and can be applied to impulse discharge experiments in various climatic environments. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a system principle block diagram according to an embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram of the sealed discharge gap structure according to an embodiment of the present invention.

[0037] The attached diagram shows the markings and corresponding component names:

[0038] 1-External sealing structure, 2-Internal sealing structure, 3-Discharge gap, 4-Conduit, 5-Multiphase monitoring component. Detailed Implementation

[0039] In the following, the terms “comprising” or “may include” as used in various embodiments of the invention indicate the presence of an inventive function, operation, or element, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the invention, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or adding one or more combinations of the foregoing.

[0040] In various embodiments of the invention, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0041] The expressions used in the various embodiments of the present invention (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, a first element may be referred to as a second element without departing from the scope of the various embodiments of the present invention, and similarly, a second element may also be referred to as a first element.

[0042] It should be noted that if a description is made of "connecting" one component to another, then the first component can be directly connected to the second component, and a third component can be "connected" between the first and second components. Conversely, when a component is "directly connected" to another component, it can be understood that there is no third component between the first and second components.

[0043] The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the invention pertain. The terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of the invention.

[0044] 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 embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are only for explaining this invention and are not intended to limit this invention.

[0045] Example 1

[0046] Currently, multi-impact discharge experiments require multiple impact devices or multiple sets of different devices to coordinate with each other in a timely manner to meet the impact requirements of the experiment. The success of the air gap breakdown of the impact device depends on whether the air pressure, temperature and humidity of the surrounding environment of the air gap match when triggering ignition. Especially in impact discharge experiments in complex environments such as high altitude, the impact is greatly affected by the environment, making it impossible for multiple devices to discharge according to the preset timing, thus making it impossible to conduct effective multi-impact discharge experiments, resulting in poor accuracy and reliability of the experiment. Traditional methods that rely solely on mechanically adjusting the trigger gap or simple electrical triggering and laser triggering are also difficult to effectively control the triggering time. To address this, this embodiment provides a multi-phase control pulse ignition system applicable to complex outdoor environments. It seals the discharge gap and installs a multi-phase monitoring device and an ignition device within it. Based on monitoring parameters (including environmental parameters, capacitor breakdown voltage, etc.) obtained from the multi-phase monitoring device and a preset mapping relationship, the optimal discharge gap spacing and environmental parameters are determined. The system then adjusts the discharge gap spacing and environmental parameters according to these optimal parameters, ensuring that the environment and gap spacing within the discharge gap meet the optimal conditions for gap breakdown discharge. This reduces the influence of the surrounding environment on the discharge gap, allowing multiple impact devices to discharge according to a preset time sequence, thus improving the reliability of the impact discharge experiment.

[0047] like Figure 1 As shown, the multi-terminal pulse ignition system of this embodiment includes a control device, a sealed discharge gap, an ignition device, a timing controller, a photoelectric converter, a multiphase monitoring component, and a pneumatic device.

[0048] Among them, the control device serves as the central control equipment of the entire device. It is used to receive monitoring data from the multiphase monitoring components and send control signals to control the operation of the regulating device and the pneumatic device to adjust the discharge gap spacing and the internal environmental parameters of the sealed discharge gap.

[0049] The control device can control the pneumatic device to change the air properties inside the discharge gap, namely air pressure and air humidity. In this embodiment, the pneumatic device can be, but is not limited to, a compressor dryer. It is controlled by the control device using level signals or fiber optic signals, and the air pressure control accuracy can reach 0.1 kPa.

[0050] The compressor dryer can be connected to multiple sealed discharge gaps via air pipes, ensuring a consistent base pressure in each gap. Furthermore, the air pressure and humidity within different sealed discharge gaps can be independently controlled via a reversing interface. This allows for the discharge of multiple gaps according to a preset timing sequence even when the height and temperature of the discharge gaps in outdoor impact generators at high altitudes differ, requiring varying internal air pressure and humidity. After the discharge gaps are connected to the compressor dryer, all connecting pipes are sealed with sealing materials to guarantee that the air pressure and humidity within the discharge gaps are at the preset levels.

[0051] The sealed discharge gap is sealed with insulating sealing material to isolate the gas inside the discharge gap from the outside world, and gas exchange is only through a conduit with the starting system.

[0052] The system in this embodiment can change the breakdown voltage of the discharge gap by altering the pressure and humidity of the gas in the discharge gap, thereby improving the accuracy of the preset gap distance being broken down.

[0053] In this embodiment, both the ignition device and the multiphase monitoring component are embedded within the sealed discharge gap. Each sealed discharge gap is equipped with its own ignition device and multiphase monitoring component. The multiphase monitoring component can monitor the internal air pressure, humidity, and temperature, and feed the monitoring signals back to the control device. The control device obtains the corresponding discharge gap spacing and environmental parameters based on the preset capacitor discharge voltage and environmental conditions. Then, it adjusts the air pressure, humidity, and gap spacing according to the discharge gap spacing and environmental parameters to ensure minimal dispersion of the discharge time, thereby accurately controlling the discharge time of different discharge devices.

[0054] This embodiment can be applied to multiple impact generators or multiple different devices that need to be triggered. Each set of devices that needs to be triggered to discharge is equipped with a separate sealed discharge gap. Different discharge gaps can be in environments with different temperatures and altitudes. Each device is uniformly controlled by a control device, but the parameters can be adjusted independently. By greatly reducing the dispersion of the discharge time of the devices, the accuracy of the time interval between the discharge times of different devices can be greatly improved by controlling the trigger time of the discharge signal through a timing controller.

[0055] In this embodiment, the timing controller is used to control multiple sealed discharge gaps to break down and discharge according to a preset timing sequence. The timing controller has multiple or even dozens of signal transmission channels, which can achieve precise control of the discharge triggering time, with a control accuracy of sub-microsecond level.

[0056] The photoelectric converter in this embodiment of the invention is mainly used to convert electrical signals into optical signals for transmission to the control system, avoiding high voltage surges and connections to weak electrical systems, and protecting the weak electrical systems.

[0057] like Figure 2As shown, the sealed discharge gap in this embodiment adopts a double-layer sealing structure to seal the discharge gap. The discharge gap 3 in the inner sealing structure 2 is connected to an external compressor dryer through a conduit 4, and the internal air pressure and humidity of the discharge gap 3 are adjusted by an external pneumatic device. A multiphase monitoring component 5 is installed in the inner sealing structure 2 to monitor the internal environmental parameters of the discharge gap 3. This embodiment achieves this by setting... Figure 2 The double-layer sealing structure shown can ensure that the gas inside the discharge gap 3 is isolated from the outside world, and gas exchange is only carried out with the external gas compressor dryer through the conduit 4. The connecting conduit 4 can also be sealed by the outer sealing structure 1 and sealed at the connection of the conduit 4 (using sealant or sealing ring), thereby ensuring that the gas pressure and humidity inside the discharge gap 3 are the preset gas pressure and humidity.

[0058] The pneumatic device in this embodiment also includes a grounding assembly. This grounding assembly is sealed with a sealant and a sealing ring, and is connected to the compressor dryer only through a conduit, with the conduit connection also sealed. The grounding assembly consists of a grounding device and a piston. The moving contact of the grounding device is fixed to the piston and connected to the high-voltage electrode of the capacitor, while the stationary contact is connected to the grounding grid or ground. After the capacitor discharges, the compressor dryer moves the moving contact to contact the stationary contact by changing the air pressure in the piston, thereby grounding the system.

[0059] This embodiment employs a multi-stage ignition device, i.e., multiple gaps connected in parallel. The discharge gap breakdown triggering method is pulse ignition. When the capacitor's charging voltage reaches a preset value, the timing controller controls the ignition device to send a pulse voltage signal to the discharge gap, causing the gap to break down, thus achieving the effect of triggering the discharge gap to break down. The pulse synchronization delay of the multi-stage discharge gaps can be effectively controlled to less than 0.1 microseconds.

[0060] The working principle of the multi-terminal pulse ignition system in this embodiment is as follows: After the capacitor of the impact generator is charged, the control device obtains the preset discharge gap distance and corresponding air pressure and humidity parameters based on the multi-phase monitoring signal and the capacitor breakdown voltage. Based on the preset parameters, the pressure, humidity, and discharge gap spacing within the discharge gap are adjusted to always meet the optimal conditions required for capacitor breakdown. When the capacitor voltage reaches the breakdown voltage, the timing controller controls the ignition device to send a pulse signal, causing the discharge gap to break down and discharge. Through the system set in this embodiment, the environmental parameters and spacing within the discharge gap can be adjusted to the optimal conditions required for capacitor breakdown, thereby reducing the influence of the environment on the success or failure of capacitor breakdown, ensuring precise control of the capacitor breakdown discharge timing, and enabling precise control of the breakdown timing interval between multiple devices, thus improving the reliability of the discharge experiment results.

[0061] The working process of the multi-terminal joint control pulse ignition system in this embodiment is as follows:

[0062] The gas pressure, air humidity, and temperature inside the discharge gap are monitored by a multiphase monitoring component embedded inside the sealed discharge gap.

[0063] Based on the monitoring signal and capacitor breakdown voltage, the corresponding gap spacing, air pressure and humidity parameters are obtained. Based on these gap spacing, air pressure and humidity parameters, the air pressure, humidity and gap spacing inside the discharge gap are adjusted to ensure that the environmental parameters and spacing in the discharge gap are the optimal conditions required for capacitor breakdown.

[0064] When the capacitor voltage reaches the breakdown voltage, the timing controller controls the ignition device to send a pulse signal to cause the discharge gap to break down and discharge. Furthermore, multiple discharge gaps are made to break down and discharge according to a preset timing sequence to meet the impact test requirements.

[0065] The ignition system in this embodiment is suitable for synchronous discharge control of inrush current generators in complex environments.

[0066] Example 2

[0067] Using the system proposed in Embodiment 1 above, synchronous discharge of the impulse current generator can be achieved in complex environments such as high altitudes. The specific steps are as follows:

[0068] Check if the compressor dryer and ignition ball gap can start normally. Start the control device and set the air pressure parameter in the pressure gap to be no less than 500 kPa. Start the inrush current generator. After charging is complete, gradually reduce the air pressure in the pressure gap. There are two ways to reduce the air pressure: "manual" and "automatic". If using "automatic" mode, the air pressure will automatically decrease until it drops to a certain value and the inrush current generator discharges, at which point the system stops operating. If using "manual" mode, press and hold the "reducing pressure" button, and the air pressure in the pressure gap will gradually decrease. Releasing the "reducing pressure" button will stop the pressure decrease. When the pressure in the pressure gap drops to a certain value, a breakdown discharge occurs in the gap. After the discharge is complete and grounded, the next experiment can be performed or the experiment can be stopped. After stopping the experiment, release the gas in the compressor dryer to make its internal pressure the same as the external pressure.

[0069] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-phase controlled multi-terminal pulse ignition system, characterized in that, It includes a control device and n sealed discharge gaps; n is an integer greater than or equal to 2; An ignition device and a multiphase monitoring component are embedded in the sealed discharge gap; The ignition device causes the sealed discharge gap to break down and discharge under pulse triggering; the multiphase monitoring component is used to monitor the internal environmental data of the sealed discharge gap and transmit the monitoring signal to the control device. The control device determines the optimal gap spacing and environmental parameters based on the monitoring signal and breakdown voltage, and adjusts the gap spacing and environmental parameters of the sealed discharge gap according to the optimal gap spacing and environmental parameters so that the gap spacing and environmental parameters of the sealed discharge gap meet the optimal conditions required for gap breakdown.

2. The multi-phase controlled multi-terminal pulse ignition system according to claim 1, characterized in that, The environmental parameters include the air pressure, temperature, and humidity within the discharge gap.

3. The multi-phase controlled multi-terminal pulse ignition system according to claim 1, characterized in that, It also includes pneumatic devices; The pneumatic device includes a compressor dryer and a grounding assembly; The compressor dryer is connected to n sealed discharge gaps via conduits to achieve synchronous or independent control of air pressure and humidity within the n sealed discharge gaps; The grounding component is connected to the compressor dryer via a conduit and is used to ground the pneumatic device after the capacitor discharges.

4. The multi-phase controlled multi-terminal pulse ignition system according to claim 3, characterized in that, The connecting conduit between the compression dryer and the sealed discharge gap is sealed using a sealed structure; The connecting conduit between the compressor dryer and the grounding assembly is sealed using a sealed structure.

5. The multi-phase controlled multi-terminal pulse ignition system according to claim 1, characterized in that, It also includes a timing controller; The timing controller is used to control the ignition device to send a pulse signal to cause the discharge gap to break down and discharge when the capacitor voltage reaches the breakdown voltage.

6. A multi-phase controlled multi-terminal pulse ignition system according to claim 5, characterized in that, The timing controller is used to control the n sealed discharge gaps to break down and discharge according to a preset timing sequence.

7. A multi-phase controlled multi-terminal pulse ignition system according to any one of claims 1-6, characterized in that, The sealed discharge gap is sealed using a double-layer sealing structure.

8. A control method for a multi-phase controlled multi-terminal ignition system according to any one of claims 1-7, characterized in that, include: The environmental data inside the discharge gap is monitored by a multiphase monitoring component embedded inside the sealed discharge gap; The optimal discharge gap spacing and environmental parameters are obtained based on the monitoring signal and breakdown voltage. Based on the optimal discharge gap spacing and environmental parameters, the internal environmental parameters and gap spacing of the discharge gap are adjusted so that the internal environmental parameters and gap spacing of the discharge gap meet the optimal conditions required for gap breakdown.

9. The control method according to claim 8, characterized in that, Also includes: When the capacitor voltage reaches the breakdown voltage, the timing controller controls the ignition device to send a pulse signal to cause the discharge gap to break down and discharge.

10. A multi-phase controlled, multi-terminal impact generator, characterized in that, The pulse ignition system as described in any one of claims 1-7 is used to control the n discharge gaps to break down and discharge in a preset time sequence.

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