Electromagnetic pulse generating unit for a powerboat arrest system

Abstract

The application discloses an electromagnetic pulse generating unit of a yacht forced stopping system, comprising a basket, a low-voltage control module, a medium-voltage energy storage module, a high-voltage output module and a cooling module. The basket comprises a chassis and a hanger, the low-voltage control module, the medium-voltage energy storage module and the high-voltage output module are all tower type boxes, are arranged along the circumferential side of the chassis, and the cooling module is arranged in the middle of the chassis. The low-voltage control module stabilizes voltage and reduces noise for external power supply, the medium-voltage energy storage module converts alternating current into direct current and modulates output pulse direct current, and the high-voltage output module further boosts voltage to output high-voltage pulses meeting field intensity requirements. The application has compact layout and high integration degree, can significantly reduce the volume and weight of the device, and improves the system mobility and working stability.

Description

Technical Field

[0001] This field relates to the design of speedboat emergency stopping systems, and more specifically to an electromagnetic pulse generating unit for a speedboat emergency stopping system. Background Technology

[0002] See Figure 1 The compact speedboat stopping system is a powerful electromagnetic pulse radiation system that can be used in fixed or mobile applications. It uses an antenna to radiate highly directional electromagnetic pulse energy into a forward area. Through the coupling of holes, gaps, and wiring harnesses in the vehicle, the connecting cables induce pulse voltages, thereby interfering with or damaging the target speedboat's electronic control system. This causes malfunctions in the fuel injection or ignition signals, preventing the spark plugs from properly igniting the air-fuel mixture, thus achieving the non-lethal purpose of stopping the speedboat. It has the advantages of all-weather operation, non-contact operation, and long-range capability. In recent years, Eureka Aerospace, the U.S. Army Research Laboratory (ARL), DIEHL (Germany), and e2v (UK) have developed various types of electromagnetic pulse speedboat stopping systems. These systems are increasingly being applied in security and protection fields, such as preventing dangerous speedboats from attacking key checkpoints and inland waterways, protecting and pursuing fleeing suspicious speedboats in convoys, and serving as another important tool in combating illegal and criminal activities.

[0003] Studies on the effects of strong electromagnetic pulses on speedboats and unmanned surface vessels (USVs) have revealed that the targets are often large, highly maneuverable speedboats and smaller, highly maneuverable USVs. Therefore, while applying the effect to the target, the high maneuverability of the target and the complex environments of rivers, lakes, and seas necessitate improving the maneuverability of the load platform of the compact speedboat stopping system. This is to ensure the system's ability to align with the target, thereby enhancing its effectiveness and reliability. Simultaneously, to suit the "compact" nature of the equipment, we must ensure the system's versatility and maintainability. Summary of the Invention

[0004] The purpose of this invention is to provide an electromagnetic pulse generating unit for a speedboat emergency stopping system, so as to achieve a lightweight and compact design for the speedboat emergency stopping system.

[0005] To solve the above-mentioned technical problems, the present invention provides an electromagnetic pulse generating unit for a speedboat emergency stopping system, including a basket, a low-voltage control module, a medium-voltage energy storage module, a high-voltage output module, and a cooling module; The suspended platform includes a chassis and a suspension frame, with the suspension frame connected to the chassis. The low-voltage control module, medium-voltage energy storage module, and high-voltage output module are all tower-shaped and arranged in a ring around the chassis. The cooling module is located in the middle of the chassis. The low-voltage control module performs preliminary voltage stabilization and noise reduction on the external input power supply. The medium-voltage energy storage module converts the AC power output from the low-voltage control module into DC power and modulates it to output modulated pulsed DC power. The high-voltage output module further boosts the pulsed DC power output from the medium-voltage energy storage module to output a high-voltage pulse that meets the set field strength requirements.

[0006] According to the above scheme, the low-voltage control module includes a primary module, the medium-voltage energy storage module includes a secondary module, and the high-voltage output module includes multiple tertiary modules; the primary module, secondary module, and multiple tertiary modules realize three-level high-voltage isolation of the electromagnetic pulse generation unit.

[0007] According to the above scheme, the primary module achieves preliminary voltage stabilization and noise reduction for external input power supply through an isolation transformer.

[0008] According to the above scheme, the secondary module converts AC power into DC power through an IGBT inverter.

[0009] According to the above scheme, multiple three-level modules are connected in parallel, and the three-level modules use capacitor energy storage and multi-stage boost circuits for voltage boosting.

[0010] According to the above scheme, the outer sides of the primary module, secondary module, and tertiary module are all provided with insulating material; a certain air insulation distance and creepage distance are provided between the primary module, secondary module, and tertiary module and other structures of the electromagnetic pulse generating unit.

[0011] According to the above scheme, the low-voltage control module includes an electromagnetic pulse generation module charging unit, which includes a drive control switch and an energy storage capacitor; the medium-voltage energy storage module includes a solid-state pulse modulation switch and a secondary transformer, which includes a nanosecond-level soft-drive switch link and a medium-voltage output circuit; the high-voltage output module includes a high-voltage pulse synchronous modulator and a high-voltage output port, which modulates the boosted high voltage, and the high-voltage output port outputs the modulated high-voltage pulse.

[0012] According to the above scheme, the cooling module includes a cooling plate and cooling pipes; the cooling pipes extend from the cooling plate to the low-pressure control module, the medium-pressure energy storage module, and the high-pressure output module respectively.

[0013] The present invention also discloses a speedboat forced-stop system, including the electromagnetic pulse generating unit described above.

[0014] The present invention also discloses a vehicle, characterized in that it is equipped with the speedboat forced-stop system described above.

[0015] Beneficial effects This electromagnetic pulse generating unit provides an integrated installation carrier for each functional module through the chassis and gantry structure of the basket, enabling standardized hoisting and mounting of the entire unit, and adapting to the compact installation and mobile use requirements of the speedboat emergency stopping system. This unit adopts a tower-shaped enclosure for the low-voltage control module, medium-voltage energy storage module, and high-voltage output module, which are arranged in a ring around the chassis. The cooling module is located in the center of the chassis. This layout maximizes the use of vertical space within the limited chassis installation area through the vertical structure design of the tower enclosure, effectively reducing the overall horizontal footprint of the unit and achieving a compact and miniaturized structure. On the other hand, the ring arrangement naturally separates the functional modules responsible for different power conversion stages in the circumference, effectively reducing electromagnetic interference between modules with different potentials. At the same time, the centrally located cooling module is at the center of all the ring-arranged functional modules, which can achieve uniform heat dissipation of all modules in the circumference through the shortest heat dissipation path. This avoids the problems of long pipes and uneven heat dissipation efficiency of traditional distributed cooling solutions. The central counterweight also balances the center of gravity of the entire unit, greatly improving the structural stability of the unit during vehicle mounting and follow-up alignment adjustments, and better adapting to the usage requirements of high-mobility target pursuit scenarios. Meanwhile, this unit uses a low-voltage control module to initially stabilize and reduce the noise of the external power supply, providing a stable and clean power input for subsequent circuits. Then, the medium-voltage energy storage module converts the AC power output from the low-voltage control module into DC power and modulates it to output a stable pulsed DC power. Finally, the high-voltage output module further boosts the pulsed DC power to output a high-voltage pulse that meets the set field strength requirements. This hierarchical power conversion link and the surrounding physical layout are precisely matched, allowing different potential stages of power conversion to correspond to different modules arranged circumferentially. While achieving stable high-voltage pulse output and ensuring the speedboat's emergency stopping effect, it further realizes the physical partitioning of high and low voltage circuits, reduces electromagnetic interference and insulation safety risks between high and low voltage circuits, and improves the overall reliability and long-term operational stability of the unit. Attached Figure Description

[0016] Figure 1 This is a diagram of the components of a speedboat emergency stopping system; Figure 2 This is a schematic diagram of the electromagnetic pulse generating unit architecture according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electromagnetic pulse generating unit according to an embodiment of the present invention.

[0017] In the diagram: 1. Suspended platform; 2. Low-voltage control module; 3. Medium-voltage energy storage module; 4. High-voltage output module; 5. Cooling module. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] To address the problems of existing technologies, this embodiment aims to reduce the size and total weight of the electromagnetic pulse transmission platform as much as possible while ensuring the maneuverability of the compact speedboat emergency stopping system launcher, thereby reducing the overall system weight and improving the dynamic stability of the servo system. Furthermore, while employing a multi-stage voltage separation design for the compact speedboat emergency stopping system, the operational reliability of the high-voltage electromagnetic pulse generation device circuit must be ensured; and during the multi-stage voltage separation design, corresponding electromagnetic compatibility design for the digital circuits must be implemented.

[0020] Based on the above objectives, this embodiment discloses an electromagnetic pulse generating unit for a speedboat forced stopping system, including a basket 1, a low-voltage control module 2, a medium-voltage energy storage module 2, a high-voltage output module 4, and a cooling module 5; The suspended platform 1 includes a chassis and a suspension frame, with the suspension frame connected to the chassis. The low-voltage control module 2, medium-voltage energy storage module 2, and high-voltage output module 4 are all tower-shaped and are arranged in a ring around the chassis. The cooling module 5 is located in the middle of the chassis. Among them, the low-voltage control module 2 performs preliminary voltage stabilization and noise reduction on the external input power supply, the medium-voltage energy storage module 2 converts the AC power output by the low-voltage control module 2 into DC power and modulates it, outputting modulated pulsed DC power, and the high-voltage output module 4 further boosts the pulsed DC power output by the medium-voltage energy storage module 2, outputting a high-voltage pulse that meets the set field strength requirements.

[0021] Specifically, the low-voltage control module 2 communicates with the main control module of the speedboat emergency stopping system via fiber optic isolation; the medium-voltage energy storage module 2 adopts modular capacitor banks, with a single capacitor bank having a modular energy storage capacity of ≥500J; the output of the high-voltage output module 4 is matched to the load of the speedboat emergency stopping system's transmitting antenna (e.g., 50Ω). This embodiment, by separating the low-voltage control module 2, medium-voltage energy storage module 2, and high-voltage output module 4, can reduce the problem of electromagnetic interference from high-voltage current to a certain extent. The input of the low-voltage control module 2 is provided by an external system power module, which includes an electromagnetic pulse generation module control unit. This control unit includes a driver and a data transmission function module, operating in a DC 5V-24V power supply mode. The tower enclosure dimensions can be selected as 800mm × 600mm × 1200mm.

[0022] Furthermore, the low-voltage control module 2 includes a primary module (AC380V / 220V power supply), the medium-voltage energy storage module 2 includes a secondary module (DC2000V pulse output, with an output frequency range of 50-100Hz), and the high-voltage output module 4 includes a multi-channel three-stage module; the primary module, secondary module, and multi-channel three-stage module realize three-stage high-voltage isolation of the electromagnetic pulse generation unit.

[0023] Furthermore, the primary module achieves preliminary voltage stabilization and noise reduction for external input power supply through an isolation transformer.

[0024] Furthermore, the secondary module converts AC power into DC power via an IGBT inverter.

[0025] Furthermore, multiple three-level modules are connected in parallel (which can boost the voltage to the level of hundreds of kilovolts). The three-level modules use capacitor energy storage and multi-stage boost circuits (such as Marx generator structure) to boost the voltage (which can achieve an output intensity of pulse voltage ≥100kV / m).

[0026] Furthermore, insulating material is provided on the outside of the primary module, secondary module, and tertiary module; a certain air insulation distance and creepage distance are provided between the primary module, secondary module, and tertiary module and other structures of the electromagnetic pulse generating unit.

[0027] Specifically, the air insulation distance can be set to ≥5mm (according to IEC-60427 standard), and the insulation material can be the epoxy resin / polyimide film composite material recommended by GB / T1408.1-2016, with dielectric loss ≤0.1%, breakdown field strength ≥30kV / mm, and thermal conductivity ≥0.3W / (m·K).

[0028] Air insulation distance : (1-1) In the above formula, k = 0.03; U is the working voltage, in kV.

[0029] creepage distance : (1-2) In the above formula, The CTI for material comparison and tracking index is ≥175 for epoxy resin.

[0030] The above formulas (1-2) and (1-2) are both based on IEC standard formulas.

[0031] Furthermore, the low-voltage control module 2 includes an electromagnetic pulse generation module charging unit, which includes a drive control switch and an energy storage capacitor; the medium-voltage energy storage module 2 includes a solid-state pulse modulation switch and a secondary transformer, which includes a nanosecond-level soft-drive switch link and a medium-voltage output circuit; the high-voltage output module 4 includes a high-voltage pulse synchronous modulator and a high-voltage output port, which modulates the boosted high voltage, and the high-voltage output port outputs the modulated high-voltage pulse.

[0032] Specifically, the electromagnetic pulse generation module charging unit is powered by AC380V and AC220V; the solid-state pulse modulation switch is powered by DC15V and pulse DC2000V.

[0033] Furthermore, the cooling module 5 includes a cooling plate and cooling pipes; the cooling pipes extend from the cooling plate to the low-pressure control module 2, the medium-pressure energy storage module 2, and the high-pressure output module 4 respectively.

[0034] Specifically, the cooling pipes are integrated inside the suspended platform 1, and the heat dissipation efficiency of the cooling module 5 is ≥40W / (m²·K).

[0035] This embodiment also discloses a speedboat forced-stop system, including the electromagnetic pulse generating unit described above.

[0036] This embodiment also discloses a vehicle, characterized in that it is equipped with the speedboat forced-stop system described above.

[0037] The specific electrical parameters of each module in this embodiment are as follows.

[0038] 1) Isolation transformer for primary module Input voltage: AC380V / 220V; Output voltage: DC220V; Transformer ratio: 1:1.7; Insulation class: H (temperature resistance 155℃).

[0039] 2) Secondary modules Input voltage: DC220V; Output voltage: DC2000V; Pulse width: 200-500μs; Energy storage capacitor: 1000μF / 450V (parallel configuration).

[0040] 3) Level 3 Module The three-level module uses a multi-stage boost circuit (Marx generator structure) to achieve voltage multiplication and output pulses at the level of hundreds of kilovolts.

[0041] Number of boost stages: 6 stages in series; Single-stage capacitor: 1000μF / 450V; Insulating medium: polyimide film (0.1 mm thick); Output impedance matching: 50Ω antenna load.

[0042] With a target output of 100kV / m pulse, the parameters of each module are shown in the table below:

[0043] The total weight of the entire compact speedboat emergency stopping system before and after the implementation of the three-stage high-voltage isolation design was calculated using simplified calculations. The weight percentage of each module in the compact speedboat emergency stopping system after the implementation of the three-stage high-voltage isolation design was also calculated, and a load model was created using 3D modeling. Compared to traditional designs, this solution effectively reduces the launcher turntable load mass by ≥35% through modular and hierarchical design, reducing the overall volume of the compact speedboat emergency stopping system to 60% of that of traditional designs, with a unit weight ≤200kg. While ensuring an electromagnetic pulse output intensity ≥100kV / m, the system achieves compact integration, reduces the overall difficulty of system maintenance, improves system maintainability, and ultimately enhances the performance stability of the compact speedboat emergency stopping system.

[0044] The beneficial effects of the present invention include at least the following: (1) Miniaturization improvement: The total weight of the launch platform is reduced by 30%, and the stability of the load turntable is improved to meet the requirements of rapid alignment of highly maneuverable targets.

[0045] (2) Enhanced safety: The multi-level voltage separation design reduces the risk of cross-influence between water and electricity, and the dielectric filling insulation technology improves the working stability of the high-voltage circuit.

[0046] (3) Maintainability optimization: The modular partition design of the suspended platform 1 reduces the difficulty of maintenance operations by 40% and supports the rapid replacement of faulty units (such as IGBTs, high voltage windings, etc.).

[0047] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0048] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An electromagnetic pulse generating unit for a speedboat forced-stopping system, characterized in that, Includes a suspended platform, a low-voltage control module, a medium-voltage energy storage module, a high-voltage output module, and a cooling module; The suspended platform includes a chassis and a suspension frame, with the suspension frame connected to the chassis. The low-voltage control module, medium-voltage energy storage module, and high-voltage output module are all tower-shaped and arranged in a ring around the chassis. The cooling module is located in the middle of the chassis. The low-voltage control module performs preliminary voltage stabilization and noise reduction on the external input power supply. The medium-voltage energy storage module converts the AC power output from the low-voltage control module into DC power and modulates it to output modulated pulsed DC power. The high-voltage output module further boosts the pulsed DC power output from the medium-voltage energy storage module to output a high-voltage pulse that meets the set field strength requirements.

2. The electromagnetic pulse generating unit of the speedboat forced-stopping system according to claim 1, characterized in that, The low-voltage control module includes a primary module, the medium-voltage energy storage module includes a secondary module, and the high-voltage output module includes multiple tertiary modules; the primary module, secondary module, and multiple tertiary modules realize three-level high-voltage isolation of the electromagnetic pulse generation unit.

3. The electromagnetic pulse generating unit of the speedboat forced-stopping system according to claim 2, characterized in that, The primary module uses an isolation transformer to achieve initial voltage regulation and noise reduction for external input power.

4. The electromagnetic pulse generating unit of the speedboat forced-stopping system according to claim 2, characterized in that, The secondary module converts AC power into DC power through an IGBT inverter.

5. The electromagnetic pulse generating unit of the speedboat forced-stopping system according to claim 2, characterized in that, Multiple three-level modules are connected in parallel, and the three-level modules use capacitor energy storage and multi-stage boost circuits for voltage boosting.

6. The electromagnetic pulse generating unit of the speedboat forced-stopping system according to claim 2, characterized in that, The primary module, secondary module, and tertiary module are all equipped with insulating material on their outer sides; a certain air insulation distance and creepage distance are provided between the primary module, secondary module, and tertiary module and other structures of the electromagnetic pulse generating unit.

7. The electromagnetic pulse generating unit of the speedboat forced-stopping system according to claim 1, characterized in that, The low-voltage control module includes an electromagnetic pulse generation module charging unit, which includes a drive control switch and an energy storage capacitor; the medium-voltage energy storage module includes a solid-state pulse modulation switch and a secondary transformer, which includes a nanosecond-level soft-drive switch link and a medium-voltage output circuit; the high-voltage output module includes a high-voltage pulse synchronous modulator and a high-voltage output port, which modulates the boosted high voltage, and the high-voltage output port outputs the modulated high-voltage pulse.

8. The electromagnetic pulse generating unit of the speedboat forced-stopping system according to claim 1, characterized in that, The cooling module includes a cooling plate and cooling pipes; the cooling pipes extend from the cooling plate to the low-pressure control module, the medium-pressure energy storage module, and the high-pressure output module.

9. A speedboat forced-stop system, characterized in that, Includes the electromagnetic pulse generating unit as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, The speedboat forced-stop system as described in claim 9 is provided.

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