Electromagnetic compatibility test system and control method for electric powered underwater vehicle

Abstract

The embodiment of the present invention provides an electromagnetic compatibility test system and control method for an electric-powered underwater vehicle, the system comprising: an electromagnetic shielding room; an electromagnetic compatibility test device arranged in the electromagnetic shielding room; an underwater vehicle arranged in the electromagnetic shielding room, which uses electric power as the power source of the propulsion system; a water tank arranged in the electromagnetic shielding room and mounted on the head of the underwater vehicle, in which test water is added to wrap and dissipate the sound wave signal emitted by the sonar detection system of the underwater vehicle; a gear box arranged outside the electromagnetic shielding room; a dynamometer arranged outside the electromagnetic shielding room; the power input shaft of the gear box is connected to the power output shaft of the underwater vehicle through a coupling and a through-wall shielding shaft, and the power output shaft of the gear box is connected to the power input shaft of the dynamometer through a coupling. It can fully expose the electromagnetic compatibility problems of the electrical components of the vehicle and improve the authenticity and effectiveness of the test.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic compatibility testing, and in particular to an electromagnetic compatibility testing system and a control method for an electric powered underwater vehicle. Background Art

[0002] Electric-powered underwater vehicles have been rapidly developed internationally due to their advantages such as low noise, no track, deep diving, and good dynamic speed regulation performance. However, the integrated application of high-power electric power systems with weak current systems such as control and navigation in a compact and confined space also creates a complex electromagnetic environment with nonlinearity and strong coupling inside the vehicle. In order to ensure the self-compatible operation and coordinated action matching of various electric components inside the equipment during actual work, each type of electric-powered underwater vehicle must undergo electromagnetic compatibility testing according to relevant standards or specifications during the development process. The electromagnetic compatibility test that is closest to the real working environment requires all electric components in the electric-powered underwater vehicle to operate at full power and act in coordination according to the set operating parameters and work processes. The high-power core electric components of the vehicle are mainly the electric propulsion system and the sonar detection system. The former provides power for the entire vehicle, and the latter performs underwater detection functions. In actual operation, it is difficult to carry out power absorption of the electric propulsion system during electromagnetic compatibility testing due to the space and use requirements of the electromagnetic shielding room. Considering that the test environment is air, and there is no underwater environment and noise elimination means, the sonar detection system of the aircraft cannot transmit the sound wave signal without load, so as to avoid heating and damage to the transducer components. Due to the lack of participation of the two core systems of electric propulsion and sonar detection, the current electromagnetic compatibility test of underwater vehicles is not real and effective, and it is difficult to find out the functions and performance of the product's electrical components. Summary of the invention

[0003] In view of the problem in the prior art that core high-power electrical systems such as the electric propulsion system and the sonar detection system cannot operate normally when the underwater vehicle is subjected to electromagnetic compatibility testing, resulting in the test results not being true and effective, the embodiments of the present invention provide an electromagnetic compatibility testing system and control method for an electric-powered underwater vehicle, which can perform self-compatibility testing when all electrical-related components of the electric-powered underwater vehicle are running at full power, thereby fully exposing the electromagnetic compatibility problems of the electrical-related components of the vehicle.

[0004] An embodiment of the present invention provides an electromagnetic compatibility test system for an electric powered underwater vehicle, comprising:

[0005] Electromagnetic shielding room;

[0006] Electromagnetic compatibility testing equipment arranged in the electromagnetic shielding room;

[0007] An underwater vehicle disposed in the electromagnetic shielding room, which uses electric power as a power source for a propulsion system;

[0008] A water tank disposed in the electromagnetic shielding room and mounted on the head of the underwater vehicle, wherein test water is added therein and used to wrap and dissipate the sound wave signal emitted by the sonar detection system of the underwater vehicle;

[0009] A gear box disposed outside the electromagnetic shielding chamber;

[0010] A dynamometer disposed outside the electromagnetic shielding chamber;

[0011] Wherein, the power input shaft of the gear box is connected to the power output shaft of the underwater vehicle through a coupling and a through-wall shielding shaft, and the power output shaft of the gear box is connected to the power input shaft of the dynamometer through a coupling.

[0012] In some embodiments of the present invention, the water tank adjusts the absorption efficiency of the acoustic wave signal by adjusting the parameters of the test water inside, wherein the parameters include at least temperature and pressure.

[0013] In some embodiments of the present invention, an auxiliary sound absorbing device is installed inside the water tank according to the characteristics of the sound wave signal.

[0014] In some embodiments of the present invention, the auxiliary sound absorbing device at least includes a sound-absorbing wedge.

[0015] In some embodiments of the present invention, the dynamometer is a permanent magnet synchronous generator with a relatively low moment of inertia, which can realize energy recovery and utilization in the form of electrical energy.

[0016] The embodiment of the present invention further provides a control method for an electromagnetic compatibility test system for an electric-powered underwater vehicle, which is used to control the electromagnetic compatibility test system for an electric-powered underwater vehicle as described in the above embodiment. The control method comprises the following steps:

[0017] S1: downloading the underwater vehicle operation program and the corresponding power operation curve to the control system of the underwater vehicle and the dynamometer respectively;

[0018] S2: Turn on the underwater vehicle and the dynamometer. All electrical components of the underwater vehicle are operated at full power according to the program. The dynamometer absorbs power from the underwater vehicle power system according to the operation curve. The water tank dissipates energy from the sound wave signal emitted by the sonar detection system of the underwater vehicle.

[0019] S3: Use electromagnetic compatibility test equipment to conduct the required electromagnetic compatibility test on the underwater vehicle to determine the operational compatibility of each electrical component.

[0020] In some embodiments of the present invention, when the underwater vehicle is turned on, all its electrical components operate at full power according to the actual flight logic, and the operating status is consistent with the actual flight.

[0021] Compared with the prior art, the electromagnetic compatibility test system and control method for an electric-powered underwater vehicle provided by the embodiment of the present invention has the beneficial effect that it can perform self-compatibility tests on all electromagnetic components under the full-power operation state of the two high-power core electrical systems of the underwater vehicle, the electric-powered propulsion system and the sonar detection system. The test state is closer to the actual working state of the underwater vehicle, which can more comprehensively expose the electromagnetic self-compatibility problems of the product, and the test results are more real and effective; the power of the product is absorbed by the electric dynamometer, and the mechanical power of the product is converted into electrical energy to feed back to the power grid, which can realize energy recycling; a gearbox is configured between the tested product and the dynamometer, which can realize the adaptation of the underwater vehicle's dual-axis and single-axis output forms, and has higher applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of an electromagnetic compatibility testing system for an electro-powered underwater vehicle provided in an embodiment of the present invention.

[0023] Reference numerals

[0024] 1. Electromagnetic shielding room; 2. Underwater vehicle; 3. Underwater vehicle power output shaft; 4. Coupling; 5. Through-wall shielding shaft; 6. Gearbox power input shaft; 7. Gearbox; 8. Gearbox power output shaft; 9. Coupling; 10. Dynamometer power input shaft; 11. Dynamometer; 12. Water tank; 13. Test water; 14. Acoustic wave signal; 15. Underwater vehicle sonar detection system; 16. Electromagnetic compatibility test equipment. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0027] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0028] It should also be understood that, although the present application has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0029] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0030] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to determine the true intent based on the user's historical operations and to avoid unnecessary or redundant details that make the present application unclear. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but are merely used as the basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0031] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0032] An embodiment of the present invention provides an electromagnetic compatibility test system for an electric powered underwater vehicle, comprising:

[0033] Electromagnetic shielding room;

[0034] Electromagnetic compatibility testing equipment arranged in the electromagnetic shielding room;

[0035] An underwater vehicle disposed in the electromagnetic shielding room, which uses electric power as a power source for a propulsion system;

[0036] A water tank disposed in the electromagnetic shielding room and mounted on the head of the underwater vehicle, wherein test water is added therein and used to wrap and dissipate the sound wave signal emitted by the sonar detection system of the underwater vehicle;

[0037] A gear box disposed outside the electromagnetic shielding chamber;

[0038] A dynamometer disposed outside the electromagnetic shielding chamber;

[0039] Wherein, the power input shaft of the gear box is connected to the power output shaft of the underwater vehicle through a coupling and a through-wall shielding shaft, and the power output shaft of the gear box is connected to the power input shaft of the dynamometer through a coupling.

[0040] In order to facilitate the understanding of the above technical solution, the following is a description with reference to the accompanying drawings and specific examples, as follows:

[0041] The overall structure of the test system is shown as follows: Figure 1As shown, the electromagnetic shielding room 1 provides a core test space for the entire system and is the main operating carrier of the entire test system; the electromagnetic shielding room 1 is arranged with an underwater vehicle 2 to be tested and an electromagnetic compatibility test device 16; the head of the underwater vehicle 2 is equipped with an underwater vehicle sonar detection system 15, the exterior of the underwater vehicle sonar detection system 15 is wrapped by a water tank 12, and the water tank 12 is filled with test water 13; the sound wave signal 14 emitted when the underwater vehicle sonar detection system 15 is powered on can be propagated in the test water 13; a through-wall shielding shaft 5 is provided on the wall of the electromagnetic shielding room 1; the through-wall shielding shaft 5 is connected to the underwater vehicle power output shaft 3 through a coupling 4 on the inner side of the electromagnetic shielding room 1; the through-wall shielding shaft 5 is connected to the power input shaft 6 of the gear box 7 through a coupling 17 on the outer side of the electromagnetic shielding room 1; the power output shaft 8 of the gear box 7 is connected to the power input shaft 10 of the dynamometer 11 through a coupling 9. The electromagnetic compatibility test equipment 16 is arranged around the underwater vehicle 2 to perform signal sending and collection tests as required.

[0042] The electromagnetic shielding room 1 is usually equipped with operation rooms such as power amplifier room, conduction room, control room and other auxiliary equipment to complete the construction of electromagnetic compatibility test environment;

[0043] The electromagnetic compatibility test equipment 16 is arranged in the electromagnetic shielding room 1;

[0044] The underwater vehicle 2 is disposed in the electromagnetic shielding room 1;

[0045] The underwater vehicle 2 uses electric power as a power source for the propulsion system;

[0046] The power output shaft of the underwater vehicle 2 is divided into two types: single-axis output and dual-axis output, corresponding to two types of propulsion: single-axis propeller and dual-axis counter-rotating propeller;

[0047] An underwater vehicle sonar detection system 15 is disposed at the head position of the underwater vehicle 2;

[0048] The underwater vehicle sonar detection system 15 can emit sound wave signals 14 outward;

[0049] The water tank 12 is arranged in the electromagnetic shielding room 1;

[0050] The water tank 12 is filled with test water 13;

[0051] The water tank 12 is mounted on the head of the underwater vehicle 2, enclosing the underwater vehicle sonar detection system 15 and the sound wave signal 14;

[0052] The gear box 7 is placed outside the electromagnetic shielding room 1;

[0053] The gearbox 7 has a speed-torque synthesis speed-changing function, which can synthesize the dual-axis power input of the previous stage into a single-axis output, or output the single-axis power input without loss.

[0054] The dynamometer 11 is arranged outside the electromagnetic shielding room 1;

[0055] The dynamometer 11 can dissipate and convert the mechanical power transmitted by the underwater vehicle 2;

[0056] The dynamometer 11 is usually equipped with a control system, which can complete the simulation of the load characteristics of the underwater vehicle 2 based on a certain strategy;

[0057] The power input shaft 6 of the gear box 7 is connected to the power output shaft 3 of the underwater vehicle in the shielding room 1 through the coupling 17, the through-wall shielding shaft 5, and the coupling 4;

[0058] The coupling 17, the through-wall shielding shaft 5, the coupling 4, and the gearbox power input shaft 6 are all concentric double-shaft structures, which can be directly connected to the double-shaft power output of the underwater vehicle, or one of the shafts can be left idle and connected to the single-shaft output of the underwater vehicle;

[0059] The through-wall shielding shaft 5 has an electromagnetic shielding function, which can prevent electromagnetic signal leakage and maintain the shielding performance of the electromagnetic shielding room unaffected;

[0060] The power output shaft 8 of the gearbox is connected to the power input shaft 10 of the dynamometer through a coupling 9;

[0061] The water tank 12 can improve the absorption efficiency of the sound wave signal 14 by adjusting parameters such as the temperature and pressure of the internal test water.

[0062] Auxiliary sound absorbing devices such as muffler wedges may be installed inside the water tank 12 according to the characteristics of the sound wave signal 14 to improve the absorption efficiency of the sound wave signal 14 .

[0063] The dynamometer 11 may select a permanent magnet synchronous generator with a relatively low moment of inertia, which can realize energy recovery and utilization in the form of electrical energy while having a relatively high dynamic response.

[0064] The embodiment of the present invention further provides a control method for an electromagnetic compatibility test system for an electric-powered underwater vehicle, which is used to control the electromagnetic compatibility test system for an electric-powered underwater vehicle as described in the above embodiment. The control method comprises the following steps:

[0065] S1: downloading the underwater vehicle operation program and the corresponding power operation curve to the control system of the underwater vehicle and the dynamometer respectively;

[0066] S2: Turn on the underwater vehicle and the dynamometer. All electrical components of the underwater vehicle are operated at full power according to the program. The dynamometer absorbs power from the underwater vehicle power system according to the operation curve. The water tank dissipates energy from the sound wave signal emitted by the sonar detection system of the underwater vehicle.

[0067] S3: After normal operation, the required electromagnetic compatibility test is carried out on the underwater vehicle using electromagnetic compatibility test equipment to determine the operational compatibility of each electrical component.

[0068] Through the above technical solutions, it can be known that the electromagnetic compatibility test system and control method of the electric-powered underwater vehicle provided by the above embodiments of the present invention can perform self-compatibility tests on all electromagnetic components under the full-power operation state of the two high-power core electrical systems of the underwater vehicle electric propulsion system and sonar detection system. The test state is closer to the actual working state of the underwater vehicle, which can more comprehensively expose the electromagnetic self-compatibility problems of the product, and the test results are more real and effective; using an electric dynamometer to absorb power from the product and converting the mechanical power of the product into electrical energy to feed back to the power grid can achieve energy recycling; configuring a gearbox between the tested product and the dynamometer can achieve the adaptation of the underwater vehicle's dual-axis and single-axis output forms, which has higher applicability.

[0069] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An electromagnetic compatibility test system for an electric powered underwater vehicle, characterized in that: include: Electromagnetic shielding room; Electromagnetic compatibility testing equipment arranged in the electromagnetic shielding room; An underwater vehicle disposed in the electromagnetic shielding room, which uses electric power as a power source for a propulsion system; A water tank disposed in the electromagnetic shielding room and mounted on the head of the underwater vehicle, wherein test water is added therein and used to wrap and dissipate the sound wave signal emitted by the sonar detection system of the underwater vehicle; A gear box disposed outside the electromagnetic shielding chamber; A dynamometer disposed outside the electromagnetic shielding chamber; Wherein, the power input shaft of the gear box is connected to the power output shaft of the underwater vehicle through a coupling and a through-wall shielding shaft, and the power output shaft of the gear box is connected to the power input shaft of the dynamometer through a coupling.

2. The electromagnetic compatibility test system for an electric powered underwater vehicle according to claim 1, characterized in that: The water tank adjusts the absorption efficiency of the sound wave signal by adjusting the parameters of the test water inside, wherein the parameters include at least temperature and pressure.

3. The electromagnetic compatibility test system for an electric powered underwater vehicle according to claim 2, characterized in that: An auxiliary sound absorbing device is installed inside the water tank according to the characteristics of the sound wave signal.

4. The electromagnetic compatibility test system for an electric powered underwater vehicle according to claim 3, characterized in that: The auxiliary sound absorbing device at least comprises a sound-absorbing wedge.

5. The electromagnetic compatibility test system for an electric powered underwater vehicle according to claim 4, characterized in that: The dynamometer is a permanent magnet synchronous generator with a relatively low moment of inertia, and can realize energy recovery and utilization in the form of electrical energy.

6. A control method for an electromagnetic compatibility test system for an electric-powered underwater vehicle, which is used to control the electromagnetic compatibility test system for an electric-powered underwater vehicle according to any one of claims 1 to 5, the control method comprising the following steps: S1: downloading the underwater vehicle operation program and the corresponding power operation curve to the control system of the underwater vehicle and the dynamometer respectively; S2: Turn on the underwater vehicle and the dynamometer. All electrical components of the underwater vehicle are operated at full power according to the program. The dynamometer absorbs power from the underwater vehicle power system according to the operation curve. The water tank dissipates energy from the sound wave signal emitted by the sonar detection system of the underwater vehicle. S3: Use electromagnetic compatibility test equipment to conduct the required electromagnetic compatibility test on the underwater vehicle to determine the operational compatibility of each electrical component.

7. The control method according to claim 6, characterized in that: When the underwater vehicle is turned on, all its electrical components operate at full power according to actual flight logic, and the operating status is consistent with actual flight.

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