A solid-state remote power distribution device family design method and system

Abstract

The application belongs to the technical field of solid-state remote power distribution device uniform type of aircraft electromechanical system, and particularly relates to a solid-state remote power distribution device uniform type design method and system. First, system requirements are collected, all power loads needing solid-state remote power distribution device secondary power distribution are divided according to locations, the rated current of all SSPC channels is obtained, and the rated current is upwardly compatible. The SSPC channels in the bus control mode and the SSPC channels in the override control mode are collectively classified as type 1. Each power output of the solid-state remote power distribution device is only bound with the power busbar input in the current location and is decoupled with the power supply on the aircraft. The uniform type is performed from four aspects of power distribution load area, SSPC channel current size, SSPC channel control mode and SSPC channel belonging busbar, so as to ensure that the hardware and software of the same type device are completely the same, the device is installed in different locations according to the recognition of the machine position, different software is executed, and the design cost, later stage support cost and management cost can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of solid-state remote power distribution device integration for aircraft electromechanical systems, and in particular relates to a solid-state remote power distribution device integration design method and system. Background Art

[0002] Aircraft electromechanical systems include dozens of subsystems, including power supply, hydraulics, environmental control, fuel, and lighting. Modern aircraft typically utilize a distributed architecture and intelligent management to control and manage these subsystems. Intelligent power distribution, primarily based on solid-state power distribution, is a key technology for achieving intelligent, miniaturized, and lightweight electromechanical control systems. Unlike traditional circuit breaker power distribution, solid-state power distribution is directly controlled by an onboard computer, resulting in high power density. Typically, a single, compact solid-state power distribution unit can drive over 50 loads. Widespread adoption of aircraft system power distribution often requires hundreds of distribution channels. Currently, due to weight and the simplicity of distributed load types, the number of solid-state remote power distribution units (SPDs) on aircraft is determined by the load distribution area, without consideration of a standardized design. However, with the diverse control types, large number of interfaces, and widespread distribution of distributed loads, a standardized design for SPDs is necessary. This approach can shorten development cycles and reduce development costs, while also reducing the number of spare parts required for subsequent research flight tests and mass production deliveries.

[0003] However, unified design also has certain difficulties, specifically: ① It is necessary to consider the consistency of SSPC bus bars, control modes, rated current configurations, and external interfaces; ② The electromechanical system needs to implement a large number of control functions, which requires that all control functions be sorted out before unification work, and the control modes must first be unified into several types; ③ Unification will cause waste of hardware resources. How to reduce waste to balance the economic losses brought about by unification requires comprehensive consideration of the acquisition signals, the location and type of power loads, etc.; ④ To meet the subsequent changes to the electromechanical system, it is necessary to set appropriate interface margins based on unification.

[0004] Therefore, how to achieve efficient unified design is a problem that needs to be solved. Summary of the Invention

[0005] The purpose of this application is to provide a method and system for the unified design of a solid-state remote power distribution device to solve the problem that the existing statistical design is complex and causes waste of hardware resources.

[0006] The technical solution of the present application is: a method for the unified design of a solid-state remote power distribution device, comprising: first, collecting system requirements, dividing all power loads requiring secondary power distribution by the solid-state remote power distribution device according to their locations, and obtaining a preliminary interface allocation plan for the solid-state remote power distribution device; based on the preliminary interface allocation plan for the solid-state remote power distribution device, obtaining the power distribution load locations of equipment in each area, setting a power distribution load location threshold and performing distance judgment, and reallocating equipment in different areas that meet the power distribution load location threshold;

[0007] Adjust the rated current of the SSPC channel, obtain the current rated current of all SSPC channels, and make the rated current upward compatible;

[0008] According to the control type of SSPC channel, the SSPC channel in bus control mode and the SSPC channel in override control mode are unified into type 1;

[0009] Each power output of the solid-state remote power distribution device is tied only to the power bus input at the current location, decoupling it from the onboard power supply.

[0010] Preferably, the specific method of redistribution is: determine the number of distribution loads, and when the number of distribution loads in adjacent areas is different, redistribute the distribution loads so that the number of SSP channel interfaces of the solid-state remote distribution equipment in the two areas is consistent.

[0011] Preferably, the specific method for distance judgment is to calculate the distance between the distribution loads of adjacent areas and determine whether the distance is less than the distribution load position threshold. If so, the two areas can be reallocated; if not, no reallocation is performed.

[0012] Preferably, a new current compatible node larger than the existing one is set, and a compatible range of adjacent current compatible nodes is set. The rated current of each SSPC channel is compared with the compatible range of the adjacent current compatible node. The compatible range to which it belongs is determined based on the current magnitude. After the determination is completed, the rated current of each SSPC channel is upwardly compatible to the current compatible node corresponding to the larger value in the compatible range.

[0013] Preferably, it is determined in sequence whether the power input interfaces of different devices are consistent. If so, the corresponding two devices are input-bound.

[0014] As a specific embodiment, a solid-state remote power distribution device unified design system includes an interface allocation module, a device allocation module, a current compatibility module, a channel unification module and a power decoupling module;

[0015] The interface allocation module is used to first collect system requirements, divide all power loads that need secondary distribution of solid-state remote power distribution devices according to their locations, and obtain a preliminary interface allocation plan for solid-state remote power distribution devices;

[0016] The equipment allocation module is used to obtain the distribution load location of equipment in each area based on the preliminary interface allocation plan of the solid-state remote power distribution device, set the distribution load location threshold and perform distance judgment, and redistribute equipment in different areas that meet the distribution load location threshold;

[0017] The current compatibility module is used to adjust the rated current of the SSPC channel, obtain the current rated current of all SSPC channels, and make the rated current upward compatible;

[0018] The channel unification module is used to unify the SSPC channels in bus control mode and the SSPC channels in override control mode into type 1 according to the control type of the SSPC channels.

[0019] The power decoupling module is used to bind each power output of the solid-state remote power distribution device only to the power bus input at the current location, and decouple it from the onboard power supply.

[0020] Preferably, the specific method of redistribution is: determine the number of distribution loads, and when the number of distribution loads in adjacent areas is different, redistribute the distribution loads so that the number of SSP channel interfaces of the solid-state remote distribution equipment in the two areas is consistent.

[0021] Preferably, the specific method for distance judgment is to calculate the distance between the distribution loads of adjacent areas and determine whether the distance is less than the distribution load position threshold. If so, the two areas can be reallocated; if not, no reallocation is performed.

[0022] Preferably, a new current compatible node larger than the existing one is set, and a compatible range of adjacent current compatible nodes is set. The rated current of each SSPC channel is compared with the compatible range of the adjacent current compatible node. The compatible range to which it belongs is determined based on the current magnitude. After the determination is completed, the rated current of each SSPC channel is upwardly compatible to the current compatible node corresponding to the larger value in the compatible range.

[0023] Preferably, it is determined in sequence whether the power input interfaces of different devices are consistent. If so, the corresponding two devices are input-bound.

[0024] The unified design method and system of solid-state remote power distribution devices of the present application are unified from four aspects, namely, the distribution load area, the current size of the SSPC channel, the SSPC channel control mode, and the bus bar to which the SSPC channel belongs. This ensures that the hardware and software of the same type of equipment are exactly the same and are installed in different locations according to machine position identification and execute different software. This can reduce design costs, subsequent support costs, and management costs, and is conducive to the management and control of technical status. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions provided by this application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application.

[0026] Figure 1 This is the overall control flow chart of this application;

[0027] Figure 2 This is a schematic diagram of the overall elements of the solid-state remote power distribution device of this application. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] A unified design method for solid-state remote power distribution devices, such as Figure 1 As shown, the following steps are included:

[0030] In step S100, the system requirements are first collected, and all power loads that require secondary distribution by the solid-state remote power distribution device are divided according to their locations to obtain a preliminary interface allocation plan for the solid-state remote power distribution device; preferably, a load threshold is set, and locations where the difference between adjacent power loads is less than the load threshold are divided into the same area, thereby preliminarily simplifying the interface allocation plan.

[0031] In step S200, based on the preliminary interface allocation plan of the solid-state remote power distribution device, the power distribution load position of the equipment in each area is obtained, the power distribution load position threshold is set and the distance is judged, and the equipment in different areas that meet the power distribution load position threshold is reallocated; for example, for device 1 located in area 1, and device 2 located in area 2, since areas 1 and 2 are adjacent, the power distribution of the two devices to nearby loads can be reallocated as appropriate to make the best use of each interface.

[0032] The specific method of redistribution is: determine the number of distribution loads, and when the number of distribution loads in adjacent areas is different, redistribute the distribution loads so that the number of SSP channel interfaces of the solid-state remote distribution equipment in the two areas is consistent.

[0033] Preferably, the specific method for distance judgment is to calculate the distance between the distribution loads in adjacent areas and determine whether the distance is less than the distribution load position threshold. If so, the two areas can be reallocated; if not, no reallocation is performed, and the distance judgment can be performed again with other adjacent distribution loads.

[0034] Step S300, adjust the rated current of the SSPC channel, obtain the current rated current of all SSPC channels, and make the rated current compatible upward. For example, 3A and 5A are unified as 5A. This can reduce the types of SSPC channels, thereby reducing the number of wasted SSPC channels after standardization and reducing the total weight. The negative impact is that the corresponding channel wiring inside the airborne equipment will be thickened, which will slightly increase the weight. The two-phase combination can significantly reduce the weight. The actual working current,

[0035] Preferably, a new current compatible node larger than the existing one is set, such as 5A, 10A, 15A, etc., and a compatible range of adjacent current compatible nodes is set, such as 0-5A, 5-10A, etc. The rated current of each SSPC channel is compared with the compatible range of the adjacent current compatible node, and the compatible range to which it belongs is determined based on the current size, such as 7.5A belongs to 5-10A. After the judgment is completed, the rated current of each SSPC channel is upwardly compatible to the current compatible node corresponding to the larger value of the compatible range, such as 7.5A is compatible with the current compatible node of 10A.

[0036] In step S400, based on the control type of the SSPC channels, bus control mode SSPC channels and override control mode SSPC channels are grouped as Type 1. For example, if device 1's SSPC1 channel is bus control mode, and device 2's SSPC1 channel is override control mode, in the subsequent EWIS design, the discrete quantity corresponding to device 2's SSPC1 channel needs to be connected to the corresponding switch, while the corresponding discrete quantity input of device 1 is left floating. In this way, these two control modes can be grouped as Type 1.

[0037] In step S500, each power output of the solid-state remote power distribution device is bound only to the power bus input at the current location and decoupled from the onboard power supply. That is, solid-state remote power distribution devices of the same model are set at different machine positions and can be connected to different onboard power supplies.

[0038] For example, if device 1 is connected to the normal bus and emergency bus on the machine, and device 2 is connected to the maintenance bus and DC standby bus on the machine, as long as the power input interface corresponding to each SSPC channel of the two devices is the same, the two devices can be considered Type 1.

[0039] Related to the bus bar, determine whether the power input interfaces of different devices can be connected to the same bus bar.

[0040] Preferably, it is determined in sequence whether the power input interfaces of different devices are consistent. If so, the inputs of the two corresponding devices are bound, thereby further simplifying the design.

[0041] Through the above strategy, the solid-state remote power distribution device can be used to distribute secondary power to the loads in the area nearby. The hardware and software of the solid-state remote power distribution devices of the same model at different locations are exactly the same. The number of pinholes of each type of solid-state remote power distribution device is controlled to avoid excessive size and weight of a single solid-state remote power distribution device. The rated current, bus bar and control mode of each SSPC channel are highly related to the hardware. All three of them should be consistent for each SSPC channel of the same model of RPDU at different locations. Figure 2 As shown, the relevant configuration of each channel is the same.

[0042] In summary, this application standardizes from four aspects, namely, the distribution load area, the current size of the SSPC channel, the SSPC channel control mode, and the bus bar to which the SSPC channel belongs. This ensures that the hardware and software of the same type of equipment are exactly the same and are installed in different locations according to the machine position identification, executing different software. This can reduce design costs, subsequent support costs, and management costs, and is conducive to the management and control of technical status.

[0043] As a specific implementation, it also includes a solid-state remote power distribution device unified design system, which adopts the above design and includes an interface allocation module, a device allocation module, a current compatibility module, a channel unification module and a power decoupling module.

[0044] The interface allocation module is used to first collect system requirements, divide all power loads that need secondary distribution of solid-state remote power distribution devices according to their locations, and obtain a preliminary interface allocation plan for solid-state remote power distribution devices;

[0045] The equipment allocation module is used to obtain the distribution load location of equipment in each area based on the preliminary interface allocation plan of the solid-state remote power distribution device, set the distribution load location threshold and perform distance judgment, and redistribute equipment in different areas that meet the distribution load location threshold;

[0046] The current compatibility module is used to adjust the rated current of the SSPC channel, obtain the current rated current of all SSPC channels, and make the rated current upward compatible;

[0047] The channel unification module is used to unify the SSPC channels in bus control mode and the SSPC channels in override control mode into type 1 according to the control type of the SSPC channels.

[0048] The power decoupling module is used to bind each power output of the solid-state remote power distribution device only to the power bus input at the current location, and decouple it from the onboard power supply.

[0049] Preferably, the specific method of redistribution is: determine the number of distribution loads, and when the number of distribution loads in adjacent areas is different, redistribute the distribution loads so that the number of SSP channel interfaces of the solid-state remote distribution equipment in the two areas is consistent.

[0050] Preferably, the specific method for distance judgment is to calculate the distance between the distribution loads of adjacent areas and determine whether the distance is less than the distribution load position threshold. If so, the two areas can be reallocated; if not, no reallocation is performed.

[0051] Preferably, a new current compatible node larger than the existing one is set, and a compatible range of adjacent current compatible nodes is set. The rated current of each SSPC channel is compared with the compatible range of the adjacent current compatible node. The compatible range to which it belongs is determined based on the current magnitude. After the determination is completed, the rated current of each SSPC channel is upwardly compatible to the current compatible node corresponding to the larger value in the compatible range.

[0052] Preferably, it is determined in sequence whether the power input interfaces of different devices are consistent. If so, the corresponding two devices are input-bound.

[0053] Finally, it should be noted that the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention can be combined with each other.

[0054] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for designing a solid-state remote power distribution device, characterized in that: include: First, the system requirements are collected, and all power loads that require secondary distribution by the solid-state remote power distribution device are divided according to their locations to obtain a preliminary interface allocation plan for the solid-state remote power distribution device. According to the preliminary interface allocation plan of the solid-state remote power distribution device, the distribution load location of the equipment in each area is obtained, the distribution load location threshold is set and the distance is judged, and the equipment in different areas that meet the distribution load location threshold is reallocated; Adjust the rated current of the SSPC channel, obtain the current rated current of all SSPC channels, and make the rated current upward compatible; According to the control type of SSPC channel, the SSPC channel in bus control mode and the SSPC channel in override control mode are unified into type 1; Bind each power output of the solid-state remote power distribution device only to the power bus input at the current location, decoupling it from the onboard power supply; The specific method of redistribution is as follows: determining the number of distribution loads, and when the number of distribution loads in adjacent areas is different, redistributing the distribution loads so that the number of SSP channel interfaces of the solid-state remote power distribution equipment in the two areas is consistent; The specific method for distance judgment is to calculate the distance between the distribution loads of adjacent areas and determine whether the distance is less than the distribution load position threshold. If so, the two areas can be reallocated; if not, no reallocation is performed. Set a new current compatible node that is larger than the existing one, set the compatible range of the adjacent current compatible node, compare the rated current of each SSPC channel with the compatible range of the adjacent current compatible node, and determine the compatible range to which it belongs based on the current magnitude. After the determination is completed, adjust the rated current of each SSPC channel upward to the current compatible node corresponding to the larger value in the compatible range.

2. The method for designing a solid-state remote power distribution device according to claim 1, wherein: Determine in turn whether the power input interfaces of different devices are consistent. If so, bind the inputs of the corresponding two devices.

3. A system for designing a solid-state remote power distribution device, using the method according to any one of claims 1-2, characterized in that: Including interface allocation module, device allocation module, current compatibility module, channel unification module and power decoupling module; The interface allocation module is used to first collect system requirements, divide all power loads that need secondary distribution of solid-state remote power distribution devices according to their locations, and obtain a preliminary interface allocation plan for solid-state remote power distribution devices; The equipment allocation module is used to obtain the distribution load location of equipment in each area based on the preliminary interface allocation plan of the solid-state remote power distribution device, set the distribution load location threshold and perform distance judgment, and redistribute equipment in different areas that meet the distribution load location threshold; The current compatibility module is used to adjust the rated current of the SSPC channel, obtain the current rated current of all SSPC channels, and make the rated current upward compatible; The channel unification module is used to unify the SSPC channels in bus control mode and the SSPC channels in override control mode into type 1 according to the control type of the SSPC channels. The power decoupling module is used to bind each power output of the solid-state remote power distribution device only to the power bus input at the current location, and decouple it from the onboard power supply; Determine the number of distribution loads. If the number of distribution loads in adjacent areas is different, redistribute the distribution loads so that the number of SSP channel interfaces of the solid-state remote power distribution equipment in the two areas is consistent. The specific method for distance judgment is to calculate the distance between the distribution loads of adjacent areas and determine whether the distance is less than the distribution load position threshold. If so, the two areas can be reallocated; if not, no reallocation is performed. Set a new current compatible node that is larger than the existing one, set the compatible range of the adjacent current compatible node, compare the rated current of each SSPC channel with the compatible range of the adjacent current compatible node, and determine the compatible range to which it belongs based on the current magnitude. After the determination is completed, adjust the rated current of each SSPC channel upward to the current compatible node corresponding to the larger value in the compatible range.

4. The unified design system for solid-state remote power distribution devices according to claim 3, wherein: Determine in turn whether the power input interfaces of different devices are consistent. If so, bind the inputs of the corresponding two devices.

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