Power distribution system and method of high-voltage equipment and stratospheric airship

Abstract

The invention relates to the technical field of circuits, and provides a power distribution system and method for high-voltage equipment and a stratospheric airship, and the power distribution system comprises a high-voltage bus, a power supply cable, and a plurality of high-voltage equipment. The high-voltage buses are distributed on the outer surface of the aircraft; the plurality of high-voltage devices are arranged outside the aircraft; and the power supply cable is connected with the high-voltage bus and the high-voltage equipment. According to the scheme, reliable power distribution control can be achieved, the structure of the whole boat power supply cable network is simplified, the number and weight of power supply cables are reduced, and therefore optimization of the overall design of a power supply and distribution system is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit, in particular to a power distribution system and method of high-voltage electrical equipment and a stratosphere airship. BACKGROUND

[0002] The airship is widely used in various emergency communication, rescue, high-altitude monitoring, investigation and other fields. The airship is generally composed of lifting gas, capsule structure, energy power and electrical system. The circulating energy system provides a high-voltage bus for the airship, and all electrical equipment on the airship directly or indirectly takes power through the high-voltage bus.

[0003] During the ground debugging and testing process of the airship, real-time power distribution control of the electrical equipment on the airship is required according to the debugging and testing requirements. In special cases, real-time power distribution control of certain electrical equipment may also be required during the flight mission of the airship.

[0004] The airship is large in size, and the number of electrical equipment is large and scattered. In order to centrally and uniformly manage the power distribution control of the electrical equipment on the airship and realize simple and efficient power distribution control of the electrical equipment, a stable and reliable power distribution mode and method need to be designed.

[0005] In order to facilitate the power supply and distribution control of the high-voltage electrical equipment on the airship, the prior art scheme is to centrally and uniformly manage all high-voltage electrical equipment through a power distribution device. All high-voltage electrical equipment is connected to the high-voltage bus through the power distribution device, takes power from the power distribution device, and manually controls the power distribution of each high-voltage electrical equipment through the power distribution device panel switch.

[0006] The power distribution mode of the prior art scheme has simple principle and structure, and is convenient to realize. The disadvantage is that each high-voltage electrical equipment needs to transmit power distribution through long line transmission, and the power cable is laid from the installation position of the high-voltage electrical equipment on the airship to the power distribution device for power taking. This power distribution mode increases the complexity of the whole airship cable laying, and increases the number and weight of the power supply cable on the airship, which has a negative impact on the airship float weight balance and overall design.

[0007] In addition, during the flight mission of the airship, the prior art scheme has no way to control the real-time power distribution of the high-voltage electrical equipment on the airship, thereby restricting the response to certain special requirements in the application process.

[0008] Therefore, it is necessary to provide a power distribution system and method of high-voltage electrical equipment and a stratosphere airship, which can realize reliable power distribution control, simplify the structure of the whole airship power supply cable network, reduce the number and weight of the power supply cable, and thus complete the optimization of the overall design of the power supply and distribution system.

[0009] The above information disclosed in the background section is only used to strengthen the understanding of the background of the present application, and therefore it can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0010] The main purpose of the present application is to overcome the problem of real-time power distribution control of high-voltage electrical equipment of the airship during the ground debugging and testing stage and the whole task cycle of flight, to provide a power distribution system and method of high-voltage electrical equipment, and a stratospheric airship, which can realize reliable power distribution control, simplify the structure of the whole-ship power supply cable network, and reduce the number and weight of the power supply cable, thereby optimizing the design of the power supply and distribution system and the whole airship.

[0011] To achieve the above purpose, the first aspect of the present application provides a power distribution system of high-voltage electrical equipment, comprising: a high-voltage bus, a power supply cable, and a plurality of high-voltage electrical equipment.

[0012] The high-voltage bus is distributed on the outer surface of the aircraft.

[0013] The plurality of high-voltage electrical equipment is arranged outside the aircraft.

[0014] The power supply cable connects the high-voltage bus and the high-voltage electrical equipment.

[0015] According to an example embodiment of the present application, the aircraft is an airship.

[0016] According to an example embodiment of the present application, the high-voltage bus comprises a first bus and a second bus, and the first bus and the second bus are arranged on the upper and lower outer surfaces of the aircraft along the axial direction of the aircraft, respectively.

[0017] According to an example embodiment of the present application, the high-voltage bus further comprises a third bus, and the third bus connects the first bus and the second bus, and is arranged on the outer surface of the middle part of the aircraft along the circumferential direction of the aircraft.

[0018] According to an example embodiment of the present application, the plurality of high-voltage electrical equipment is arranged and fixed on the top and bottom of the aircraft along the axial direction of the aircraft.

[0019] According to an example embodiment of the present application, each high-voltage electrical equipment comprises a functional module and a power controller, the power controller is connected with the power supply cable and the functional module, and is used to control the communication and disconnection of the functional module and the power supply cable, and the functional module is used to realize the function of the high-voltage electrical equipment.

[0020] According to an example embodiment of the present application, the power distribution system of the stratospheric high-voltage electrical equipment further comprises a ship service management unit and a communication bus, each high-voltage electrical equipment further comprises a communication module, the communication module is connected with the ship service management unit through the communication bus, and exchanges information with the ship service management unit; and the communication module is further connected with the power controller and the power supply cable.

[0021] According to an example embodiment of the present application, the communication bus comprises a serial industrial control bus.

[0022] According to an example embodiment of the present application, the communication bus adopts RS485 or CAN.

[0023] According to a second aspect of the present application, the present application provides a power distribution method of high-voltage electrical equipment, which adopts the power distribution system of high-voltage electrical equipment, and includes a power-on step and a power-off step, the power-on step includes:

[0024] starting a high-voltage bus;

[0025] checking whether the state of the high-voltage electrical equipment is normal, and if not, troubleshooting until all high-voltage electrical equipment is normal;

[0026] connecting the high-voltage bus and the high-voltage electrical equipment;

[0027] checking whether the power-on of the high-voltage electrical equipment is normal, and if not, troubleshooting, and reconnecting the high-voltage bus and the abnormal high-voltage electrical equipment.

[0028] As a third aspect of the present application, the present application provides a stratosphere airship, which includes the power distribution system of high-voltage electrical equipment and an airship body.

[0029] The present application has the following advantages:

[0030] The present application can realize real-time power distribution control of high-voltage electrical equipment on the airship during the ground debugging and testing stage and the entire mission cycle of flight. Since the high-voltage electrical equipment is arranged to take power from the high-voltage bus in a nearby mode, the number and weight of power supply cables are reduced, the structure of the airship power supply cable network and the cable laying mode are simplified, and the overall design of the power supply system is greatly optimized.

[0031] With the expansion of the size of the unmanned airship and the increase in the number of high-voltage electrical equipment, the advantages of the present application will become more and more significant, and the present application is particularly suitable for use on unmanned airships. BRIEF DESCRIPTION OF DRAWINGS

[0032] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description of example embodiments thereof taken in conjunction with the accompanying drawings. The following drawings described below are only some embodiments of the present application, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0033] Figure 1 The structure of the stratosphere airship is schematically shown.

[0034] Figure 2 The structure of the high-voltage electrical equipment is schematically shown.

[0035] Figure 3The connection relationship diagram of the boat management unit and the high-voltage electrical equipment is schematically shown.

[0036] Figure 4 The flow chart of the power-on step is schematically shown.

[0037] Figure 5 The flow chart of the power-off step is schematically shown.

[0038] In the figure, 1 is a dirigible body, 2 is a high-voltage bus, 3 is a power supply cable, 4 is a high-voltage electrical equipment, 5 is a communication bus, and 6 is a boat management unit. DETAILED DESCRIPTION

[0039] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and descriptions of the same or similar elements can be incorporated by reference.

[0040] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, and operations have not been shown or described in detail to avoid obscuring aspects of the application.

[0041] The block diagrams in the drawings show functions and functionality as they can be implemented in software / firmware. Still, as would be realized by one of ordinary skill in the art, each block can be implemented in a number of ways, and alternatives to those described herein can be implemented. For example, the functionality does not have to be implemented as blocks as they are described. Rather, they can be implemented in an integrated fashion with other functions / duties, even though such functionality can be separated out for implementing purposes as between these blocks.

[0042] The flow diagrams depicted herein are examples of sequences of operations that can be performed, for example, by a computing device. The depicted examples are not meant to be limiting, as one of ordinary skill in the art would understand that the steps of the examples can be changed, eliminated, combined, or separated into different sequences of operations. For example, some operations can be performed in a different order, or some operations can be performed in parallel. Additionally, some operations can be combined or separated into different operations.

[0043] It should be understood that although the terms first, second, third, etc. can be used herein to describe various components, these components should not be limited by these terms. These terms are used only to distinguish one component from another. Thus, a first component discussed below could be termed a second component without departing from the teachings of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0044] Those skilled in the art can understand that the modules or flows in the drawings are not necessarily required for implementing the present application, and therefore cannot be used to limit the protection scope of the present application.

[0045] According to the first specific embodiment of the present application, the present application provides a stratosphere airship, as shown in the accompanying drawings, comprising a power distribution system of the high-voltage electrical equipment, an airship body 1. Figure 1 As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6.

[0046] The airship body 1 is an ellipsoidal balloon containing lifting gas inside, which can lift the airship to the stratosphere. The stratosphere, also known as the isothermal layer, is a layer of the earth's atmosphere where the temperature is high at the top and low at the bottom. It is just opposite to the troposphere located below it close to the ground, which is cold at the top and hot at the bottom. In the mid-latitude region, the stratosphere is located at a height of 10-50 km from the ground, while in the polar region, this layer starts from about 8 km from the ground.

[0047] As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6. Figures 1-3 As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6.

[0048] As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6. Figure 1 As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6. Figure 1 As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6. Figure 1 As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6. As shown in the accompanying drawings, the power distribution system of the high-voltage electrical equipment comprises a high-voltage bus 2, a power supply cable 3, a plurality of high-voltage electrical equipment 4, a communication bus 5 and a ship management unit 6.

[0049] The power supply cable 3 connects the high-voltage bus 2 and the high-voltage electrical equipment 4.

[0050] As shown in Figure 1 , a plurality of high-voltage electrical equipment 4 is arranged outside the airship body 1. The high-voltage electrical equipment 4 includes a blower, a power motor, a compressor, etc. The plurality of high-voltage electrical equipment 4 is sequentially arranged and fixed along the airship axial direction at the top and bottom of the airship body 1. As shown in Figure 2 , each high-voltage electrical equipment 4 is connected to the nearest high-voltage bus 2 output end through the power supply cable 3 to obtain power. Each high-voltage electrical equipment 4 includes a functional module, a power controller, and a communication module. The power controller is connected with the power supply cable 3 and the functional module, and is used to control the connection and disconnection of the functional module and the power supply cable 3. The functional module is used to realize the function of the high-voltage electrical equipment 4. The power controller can use a power relay. As shown in Figure 3 , the communication module is connected with the airship management unit 6 through the communication bus 5 to exchange information with the airship management unit 6; the communication module is also connected with the power controller and the power supply cable 3. The communication module is used to send the state information of the high-voltage electrical equipment 4 to the airship management unit 6, receive the power-on command and power-off command of the airship management unit 6, and also send the control signal of the power-on command and power-off command to the power controller. The airship management unit 6 and all high-voltage electrical equipment 4 (a total of n high-voltage electrical equipment 4) are respectively connected to the communication bus 5 as master-slave devices. The airship management unit 4 is the master device, which initiatively initiates the collection or control command, and the high-voltage electrical equipment 4 is the slave device, which passively receives the command and responds to the command.

[0051] The communication bus includes a serial industrial control bus. As a preferred embodiment, the communication bus uses RS485 or CAN.

[0052] According to the second specific embodiment of the present application, the present application provides a power distribution method for high-voltage electrical equipment of a stratosphere airship, which uses the power distribution system of the high-voltage electrical equipment of the second specific embodiment. The power distribution method includes a power-on step and a power-off step.

[0053] As shown in Figure 4 , the power-on step includes:

[0054] A1: Start the high-voltage bus 2.

[0055] After the high-voltage bus 2 is started, the internal communication module and the power controller of the high-voltage electrical equipment 4 are in a working state, the functional module and the power supply cable 3 are in a disconnected state, the functional module of the high-voltage electrical equipment 4 has no power input and is in a non-working state.

[0056] A2: Check whether the state of the high-voltage electrical equipment 4 is normal. If not, troubleshoot until all high-voltage electrical equipment is normal.

[0057] All high-voltage electrical equipment 4 completes initialization operation, the communication module collects the state information of the equipment, and reports to the boat management unit 6. The boat management unit 6 checks whether the state of the high-voltage electrical equipment is normal according to the state information, and if not, determines that it is an abnormal state equipment, and carries out fault diagnosis until all high-voltage electrical equipment is normal.

[0058] A3: Connect the high-voltage bus 2 and the high-voltage electrical equipment 4.

[0059] The boat management unit 6 sends a power-on command to the designated high-voltage electrical equipment 4 through the communication bus 5, and the high-voltage bus 2 and the high-voltage electrical equipment 4 are connected.

[0060] A4: Detect whether the power-on of the high-voltage electrical equipment 4 is normal, and if not, exclude the fault and reconnect the high-voltage bus 2 and the abnormal high-voltage electrical equipment 4.

[0061] After receiving the power-on command from the boat management unit 6, the communication module sends a control signal to the power controller, and the power controller connects the power supply path of the functional module after receiving the signal, connects the high-voltage electrical equipment 4 in the non-working state to the high-voltage bus 2, and starts the functional module.

[0062] The communication module collects the state information of the designated high-voltage electrical equipment 4 at this moment and reports it to the boat management unit 6. The boat management unit 6 judges whether the power-on of the designated high-voltage electrical equipment 4 is normal (i.e. whether the state is correct and the power-on operation is successfully completed) according to the state information. If it is normal, it indicates that the designated high-voltage electrical equipment 4 has successfully completed the power-on operation; if it is not normal, in order to improve the reliability of the system and avoid misjudgment in the communication process, the boat management unit 6 sends the current power-on command to the designated high-voltage electrical equipment 4 again, and the cumulative sending of the power distribution command does not exceed 2 times, and steps A3 and A4 are executed again. If the cumulative sending of the power-on command is 2 times, the power-on of the designated high-voltage electrical equipment 2 is still not normal, it is judged that the power-on process of the designated high-voltage electrical equipment 4 has a fault, and the steps A1 to A4 need to be executed again after troubleshooting.

[0063] As Figure 5 described, the power-off step includes:

[0064] B1: Disconnect the high-voltage bus 2 and the high-voltage electrical equipment 4.

[0065] The boat management unit 6 sends a power-off command to the designated high-voltage electrical equipment 5 through the communication bus 5.

[0066] After receiving the power-off command from the communication bus 5, the communication module sends a control signal to the power controller, and the power controller disconnects the power supply path of the functional module, i.e. disconnects the high-voltage electrical equipment 4 in the working state from the high-voltage bus 2, and stops the work of the high-voltage electrical equipment 4.

[0067] B2: detecting whether the power-off of the high-voltage electrical equipment 4 is normal, and troubleshooting and re-disconnecting the high-voltage bus 2 and the high-voltage electrical equipment 4 if it is not normal.

[0068] The communication module collects the state information of the specified high-voltage electrical equipment 4 at the moment, and reports it to the boat management unit 6. After receiving the state information of the specified high-voltage electrical equipment 4, the boat management unit 6 judges whether the specified high-voltage electrical equipment 4 is normal (whether the state is correct, and whether the power-off operation is successfully completed). If it is normal, it indicates that the specified high-voltage electrical equipment 4 has successfully completed the power-off operation; if it is not normal, in order to improve the reliability of the system and avoid misjudgment in the communication process, the boat management unit 6 sends the current power-off command to the specified high-voltage electrical equipment 4 again, and the cumulative power distribution command is not more than 2 times, and steps B1 and B2 are repeated. If the cumulative power-off command is sent 2 times, and the state information reported by the specified high-voltage electrical equipment 4 is still not normal, it is judged that the power-off process of the specified high-voltage electrical equipment 4 fails, and steps B1 and B2 need to be re-executed after troubleshooting.

[0069] Compared with the previous centralized power distribution mode, it is not taken from the bus nearby, so long lines need to be laid from the centralized power distribution place to the electrical equipment, and each device needs to be wired separately. With the increase of the number of devices, the complexity and number of wiring will increase exponentially. In addition, the control method is also different. The previous one is controlled by a dial switch, which cannot realize real-time on-off control. As shown in Figure 1 The advantage of the present scheme is that the power supply cable 3 will not increase with the increase of the number of high-voltage electrical equipment 4, and the larger the system, the more obvious the advantage. In addition, the control method of the present scheme is flexible, which meets the demand of real-time control.

[0070] In summary, the present scheme can realize real-time power distribution control of high-voltage electrical equipment on the boat during the ground debugging and testing stage and the whole mission cycle of flight. Since the high-voltage electrical equipment is taken from the high-voltage bus nearby, the number and weight of the power supply cable are reduced, and the structure of the whole boat power supply cable network and the cable laying method are simplified, which greatly optimizes the overall design of the power supply system.

[0071] With the expansion of the size of the unmanned airship and the increase of the number of high-voltage electrical equipment, the advantages of the present scheme will be more and more obvious, especially suitable for use on unmanned airships.

[0072] The exemplary embodiments of the present application are specifically shown and described above. It should be understood that the present application is not limited to the detailed structure, arrangement or implementation method described herein; on the contrary, the present application is intended to cover various modifications and equivalent arrangements within the spirit and scope of the appended claims.

Claims

1. A power distribution system for high-voltage electrical equipment, characterized in that, include: High-voltage busbars, power supply cables, and multiple high-voltage electrical devices; The high-voltage busbars are distributed on the outer surface of the aircraft; Multiple high-voltage electrical devices are installed outside the aircraft; The power supply cable connects the high-voltage busbar and the high-voltage electrical equipment.

2. The power distribution system for high-voltage electrical equipment according to claim 1, characterized in that, The high-voltage busbar includes a first busbar and a second busbar, which are respectively arranged on the upper and lower outer surfaces of the aircraft along the axial direction of the aircraft.

3. The power distribution system for high-voltage electrical equipment according to claim 2, characterized in that, The high-voltage busbar also includes a third busbar, which connects the first busbar and the second busbar. The third busbar is located on the outer surface of the middle part of the aircraft along the circumferential direction of the aircraft.

4. The power distribution system for high-voltage electrical equipment according to claim 1, characterized in that, Multiple high-voltage electrical devices are arranged sequentially and fixed at the top and bottom of the aircraft along its axial direction.

5. The power distribution system for high-voltage electrical equipment according to claim 3, characterized in that, Each high-voltage electrical device includes a functional module and a power controller. The power controller is connected to the power supply cable and the functional module and is used to control the connection and disconnection between the functional module and the power supply cable. The functional module is used to realize the function of the high-voltage electrical device.

6. The power distribution system for high-voltage electrical equipment according to claim 5, characterized in that, It also includes a vessel management unit and a communication bus. Each high-voltage electrical device also includes a communication module, which is connected to the vessel management unit via the communication bus to exchange information. The communication module is also connected to a power controller and power supply cables.

7. The power distribution system for high-voltage electrical equipment according to claim 6, characterized in that, The communication bus includes a serial industrial control bus.

8. The power distribution system for high-voltage electrical equipment according to claim 7, characterized in that, The communication bus uses RS485 or CAN.

9. A power distribution method for high-voltage electrical equipment, characterized in that, A power distribution system using any one of the high-voltage electrical equipment according to claims 1-8 includes a power-on step and a power-off step, wherein the power-on step includes: Start the high-voltage busbar; Check if the high-voltage electrical equipment is in normal condition. If it is not normal, troubleshoot the problem until all high-voltage electrical equipment is in normal condition. Connects the high-voltage busbar and high-voltage electrical equipment; Check if the high-voltage equipment is powered on normally. If not, troubleshoot the problem and reconnect the high-voltage busbar and the malfunctioning high-voltage equipment.

10. A stratospheric airship, characterized in that, The power distribution system and airship hull of the high-voltage electrical equipment as described in any one of claims 1-8.

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