Solid-state remote power distribution device unified design method and system

Abstract

The invention belongs to the technical field of a solid-state remote power distribution device unified type of an aircraft electromechanical system, and particularly relates to a solid-state remote power distribution device unified type design method and system, and the method comprises the steps: collecting system demands, dividing all power loads needing the secondary power distribution of a solid-state remote power distribution device according to the positions, current rated currents of all SSPC channels are obtained, and the rated currents are upwards compatible; an SSPC channel of a bus control mode and an SSPC channel of an override control mode are integrated into a type 1; and each path of power output of the solid-state remote power distribution device is only bound with the power bus bar input at the current position, and is decoupled from the onboard power supply. According to the method and the system, unification is performed from four aspects of a power distribution load area, SSPC channel current magnitude, an SSPC channel control mode and a bus bar to which an SSPC channel belongs, so that hardware and software of equipment of the same type are ensured to be completely the same, the equipment is installed at different positions according to machine position identification, different software is executed, and the design cost, the later guarantee cost and the 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] The aircraft electromechanical system includes dozens of subsystems such as power supply system, hydraulic system, environmental control system, fuel system, lighting system, etc. For the control and management of these subsystems, modern aircraft usually use distributed architecture and intelligent management. Intelligent power distribution based on solid-state power distribution is the key technology to realize the intelligentization, miniaturization and lightweight of electromechanical control system. Different from the traditional circuit breaker power distribution method, solid-state power distribution is directly controlled by the onboard computer, with high power density. Usually, a single small solid-state power distribution device can drive more than 50 loads. After being widely used in aircraft system power distribution, hundreds of power distribution channels are usually required. At present, considering the weight and the simple distribution load type, the number of solid-state remote power distribution devices is determined by the load distribution area, and the unified type is not considered. However, with the various types of distribution load control, the large number of interfaces and the wide distribution range, it is necessary to design the solid-state remote power distribution device in a unified manner. This can shorten the development cycle, reduce the development cost, and reduce the spare parts required for subsequent scientific research test flights and mass production delivery.

[0003] However, unified design also has certain difficulties, which are specifically manifested in: ① It is necessary to consider the consistency of SSPC busbars, control modes, rated current configurations and external interfaces; ② The electromechanical system needs to implement many control functions, which requires that all control functions be sorted out before the unification work, and the control modes must be unified into several types first; ③ Unification will cause waste of hardware resources. How to reduce waste to balance the economic losses brought by unification requires comprehensive consideration of the location and type of acquisition signals and power loads; ④ In order to meet the subsequent changes in the electromechanical system, it is necessary to set appropriate interface margins based on the 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: firstly collecting system requirements, dividing all power loads that need to be subjected to secondary power distribution by a 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; according to the preliminary interface allocation plan for the solid-state remote power distribution device, obtaining the power distribution load positions of equipment in each area, setting a power distribution load position threshold and performing distance judgment, and reallocating equipment in different areas that meet the power distribution load position 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 of bus control mode and the SSPC channel of override control mode are unified as type 1;

[0009] 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.

[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 that is 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, and the compatible range to which it belongs is determined based on the current size. 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 of the compatible range.

[0013] Preferably, it is determined in turn whether the power input interfaces of different devices are consistent, and if so, the inputs of the corresponding two devices are bound.

[0014] As a specific implementation, 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 unified design module and a power decoupling module;

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

[0016] The equipment allocation module is used to obtain the distribution load position of the equipment in each area according to the preliminary interface allocation plan of the solid-state remote power distribution device, set the distribution load position threshold and perform distance judgment, and redistribute the equipment in different areas that meet the distribution load position 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 that is 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, and the compatible range to which it belongs is determined based on the current size. 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 of the compatible range.

[0023] Preferably, it is determined in turn whether the power input interfaces of different devices are consistent, and if so, the inputs of the corresponding two devices are bound.

[0024] The unified design method and system of the solid-state remote power distribution device 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 beneficial to the control of technical status. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution provided by the present application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0029] A method for designing a solid-state remote power distribution device. Figure 1 As shown, the following steps are included:

[0030] Step S100, first collect system requirements, divide all power loads that require secondary power distribution by solid-state remote power distribution devices according to their locations, and obtain a preliminary interface allocation plan for the solid-state remote power distribution devices; preferably, set a load threshold, and divide the locations where the difference between adjacent power loads is less than the load threshold into the same area, thereby preliminarily realizing the simplification of the interface allocation plan.

[0031] Step S200, according to the preliminary interface allocation plan of the solid-state remote power distribution device, obtain the distribution load position of the equipment in each area, set the distribution load position threshold and perform distance judgment, and reallocate the equipment in different areas that meet the distribution load position threshold; for example, for device 1 located in area 1, and device 2 located in area 2, since area 1 and area 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 upward compatible. For example, 3A and 5A are uniformly specified as 5A, which 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 routing inside the airborne equipment will be thickened, which will slightly increase the weight. The two-phase combination will 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 according to 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 to the current compatible node of 10A.

[0036] Step S400: According to the control type of the SSPC channel, the SSPC channel of the bus control mode and the SSPC channel of the override control mode are unified as type 1. For example, the SSPC1 channel of device 1 is in bus control mode, and the SSPC1 channel of device 2 is in override control mode. In the subsequent EWIS design, the discrete quantity corresponding to the SSPC1 channel of device 2 needs to be connected to the corresponding switch, and the discrete quantity input of the corresponding position of device 1 is directly left floating, so that these two types of control modes can be unified as type 1.

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

[0038] For example: 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 consistent, the two devices can be considered as 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 turn whether the power input interfaces of different devices are consistent. If so, the inputs of the corresponding two devices are bound, thereby further simplifying the design.

[0041] Through the above strategies, the solid-state remote power distribution device can be used to distribute power to the loads in the area nearby on the machine; 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 volume 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, and these three 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 is standardized from four aspects, namely, power distribution load area, SSPC channel current size, SSPC channel control mode, and bus bar to which the SSPC channel belongs, to ensure that the hardware and software of the same type of equipment are exactly the same and installed in different locations according to machine position identification, and execute different software, which 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 unified design system for solid-state remote power distribution devices, 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 to be secondary-distributed by the solid-state remote power distribution device according to their locations, and obtain a preliminary interface allocation plan for the solid-state remote power distribution device;

[0045] The equipment allocation module is used to obtain the distribution load position of the equipment in each area according to the preliminary interface allocation plan of the solid-state remote power distribution device, set the distribution load position threshold and perform distance judgment, and redistribute the equipment in different areas that meet the distribution load position 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 that is 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, and the compatible range to which it belongs is determined based on the current size. 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 of the compatible range.

[0052] Preferably, it is determined in turn whether the power input interfaces of different devices are consistent, and if so, the inputs of the corresponding two devices are 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, and other structures can refer to the general design. In the absence of conflict, 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 protection scope of the present invention.

Claims

1. A method for designing a solid-state remote power distribution device, characterized in that: include: Firstly, the system requirements are collected, and all the power loads that need to be secondary-distributed by the solid-state remote power distribution device are divided according to their locations, so as to obtain the preliminary interface allocation plan of 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 position of the equipment in each area is obtained, the distribution load position threshold is set and the distance is judged, and the equipment in different areas that meet the distribution load position 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 of bus control mode and the SSPC channel of override control mode are unified as type 1; 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.

2. The method for designing a solid-state remote power distribution device as claimed in claim 1, characterized in that: 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.

3. The method for designing a solid-state remote power distribution device as claimed in claim 1, characterized in that: 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.

4. The method for designing a solid-state remote power distribution device as claimed in claim 1, characterized in that: Set a new current compatible node that is larger than the existing one, set the compatible range of the adjacent current compatible nodes, compare the rated current of each SSPC channel with the compatible range of the adjacent current compatible node, determine the compatible range to which it belongs based on the current size, and after the determination is completed, make the rated current of each SSPC channel compatible upward to the current compatible node corresponding to the larger value of the compatible range.

5. The method for designing a solid-state remote power distribution device as claimed in claim 1, characterized in that: It is determined in turn whether the power input interfaces of different devices are consistent. If so, the corresponding two devices are input bound.

6. A system for designing a solid-state remote power distribution device, using the method of any one of claims 1 to 5, characterized in that: It includes an interface allocation module, a device allocation module, a current compatibility module, a channel unification module and a power decoupling module; The interface allocation module is used to first collect system requirements, divide all power loads that need to be secondary-distributed by the solid-state remote power distribution device according to their locations, and obtain a preliminary interface allocation plan for the solid-state remote power distribution device; The equipment allocation module is used to obtain the distribution load position of the equipment in each area according to the preliminary interface allocation plan of the solid-state remote power distribution device, set the distribution load position threshold and make distance judgment, and redistribute the equipment in different areas that meet the distribution load position 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.

7. The system for designing a solid-state remote power distribution device as claimed in claim 6, characterized in that: 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.

8. The system for designing a solid-state remote power distribution device as claimed in claim 6, characterized in that: 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.

9. The system for designing a solid-state remote power distribution device as claimed in claim 6, characterized in that: Set a new current compatible node that is larger than the existing one, set the compatible range of the adjacent current compatible nodes, compare the rated current of each SSPC channel with the compatible range of the adjacent current compatible node, determine the compatible range to which it belongs based on the current size, and after the determination is completed, make the rated current of each SSPC channel compatible upward to the current compatible node corresponding to the larger value of the compatible range.

10. The system for designing a solid-state remote power distribution device as claimed in claim 6, wherein: It is determined in turn whether the power input interfaces of different devices are consistent. If so, the corresponding two devices are input bound.

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