CN114696462A

CN114696462A - Power supply system of engineering test prototype and training equipment of eVTOL aircraft

Info

Publication number: CN114696462A
Application number: CN202210429578.3A
Authority: CN
Inventors: 刘洋; 刘晓龙; 刘会勇; 丁元沅
Original assignee: Accel Tianjin Flight Simulation Co Ltd
Current assignee: Accel Tianjin Flight Simulation Co Ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-07-01

Abstract

The embodiment of the application provides a power supply system of engineering test prototype and training equipment of an eVTOL (aircraft virtual volume ol) aircraft, which comprises: the power supply management layer comprises a plurality of power supply modules, the interface management layer comprises a bus and power supply interfaces, the power supply application layer comprises electric equipment in engineering test prototypes and/or training equipment, alternating current power supplies provided by a power grid are processed through the power supply modules in the power supply management layer so as to obtain target power supplies in preset quantity, and the bus and the power supply interfaces distribute the target power supplies in the preset quantity according to the power demand of the electric equipment in the power supply application layer, so that a set of power supply system applicable to engineering test prototypes and training equipment of different eVTOL aircrafts is obtained.

Description

Power supply system of engineering test prototype and training equipment of eVTOL aircraft

Technical Field

The embodiment of the application relates to the technical field of electric vertical take-off and landing (eVTOL) aircrafts, in particular to a power supply system of an engineering test prototype and training equipment of an eVTOL aircraft.

Background

With the continuous development of human society and cities, the demands of human survival on environment and energy are gradually sublimed to a new height. Urban traffic construction and environmental problems are becoming one of the important problems restricting urban development. Ground traffic, especially for some big cities, the utilization rate of road and rail traffic is nearly saturated; with the increasing population and automobile holding capacity, the congestion of ground traffic has become an increasingly serious problem. And the environmental influences of carbon emission, noise and the like derived from the carbon-containing composite material become problems which are urgently needed to be solved by social development.

The concept of a novel urban vehicle eVTOL aircraft is developed, the commute is derived from the ground to the low altitude, the problem of congestion of roads is solved, and the problem of high requirements of a common navigation aircraft/helicopter on fields and cost is solved. In recent years, with the gradual progress of three-electricity (battery, motor and electric control) technology and the demand of urban air traffic for novel vehicles, more and more enterprises and personnel are put into research on the eVTOL aircraft, and because an engineering test prototype and training equipment of the eVTOL aircraft do not have the condition of assembling a battery pack, a peripheral power supply system is required to be adopted to supply power to the engineering test prototype and the training equipment of the eVTOL aircraft.

Therefore, the universal power supply system which can meet the use requirements of engineering test prototypes of the eVTOL aircraft and the use requirements of training equipment of the eVTOL aircraft is provided, and the technical problem to be solved in the prior art is urgent.

Disclosure of Invention

The embodiment of the application provides a power supply system of an engineering test prototype and training equipment of an eVTOL (electric virtual instrument) aircraft, which can meet the power consumption requirement of the engineering test prototype of the eVTOL aircraft and the power consumption requirement of the training equipment of the eVTOL aircraft.

The embodiment of the application provides a power supply system of engineering test prototype and training equipment of an eVTOL (aircraft virtual volume ol) aircraft, which comprises: the system comprises a power management layer, an interface management layer and a power application layer;

the power supply management layer comprises a plurality of power supply modules, the interface management layer comprises a bus and a power supply interface, and the power supply application layer comprises the engineering test prototype and/or electric equipment in the training equipment;

the power management layer is used for processing the alternating current power supply provided by the power grid through the plurality of power modules to obtain a preset number of target power supplies;

and the interface management layer is used for distributing the preset number of target power supplies through the bus and the power supply interface according to the power consumption requirement of the power consumption equipment in the power supply application layer.

Optionally, the power management layer further includes: a power distribution module; the number of the power supply modules is equal to that of the target power supplies; the power distribution module is respectively connected with each power supply module;

the power distribution module is used for shunting the alternating current power supplies to obtain the alternating current power supplies with the preset number;

the power modules are used for classifying the alternating current power supplies to obtain the target power supplies with the preset number, and the target power supplies are alternating current power supplies, direct current power supplies or intermediate frequency power supplies.

Optionally, the power management layer includes a first number of standard power modules, a second number of dc power modules, and a third number of intermediate frequency power modules;

the standard power supply module is used for directly referencing the alternating current power supply output by the power distribution module;

the direct-current power supply module is used for performing alternating-current and direct-current conversion processing on the alternating-current power supply output by the power distribution module to obtain a direct-current power supply;

and the intermediate frequency power supply module is used for carrying out frequency conversion processing on the alternating current power supply output by the power distribution module to obtain an intermediate frequency power supply.

Optionally, the power management layer further includes: an Uninterruptible Power Supply (UPS) module;

the UPS module is connected with the power distribution module and used for providing an uninterrupted power supply for the power distribution module when the power grid cannot normally supply power.

Optionally, the power supply interface includes: an input interface and an output interface; the input interface and the output interface are in a modular universal design; the interface management layer is specifically configured to:

and converging the preset number of target power supplies to the bus through the input interface, and distributing the preset number of target power supplies through the output interface.

Optionally, the interface management layer further includes: a bypass switch; the bypass switch is arranged between two adjacent target power supplies.

Optionally, the system further comprises: the monitoring module and the control module;

the monitoring module is used for monitoring the controlled pieces in the power management layer and the interface management layer, generating state information and feeding back the state information to the control module; the controlled element comprises a module in a power management layer, a power supply interface in an interface management layer and a bypass switch;

the control module is used for determining whether to send a target control instruction according to the receiving state information, wherein the target control instruction comprises a power-on instruction and/or a bypass instruction and/or a power-off instruction.

Optionally, the state information includes an identifier and a state of the controlled element, and the control module is specifically configured to:

determining whether the target controlled part corresponding to the identifier is abnormal or not according to the state;

and if the target controlled element is abnormal, sending a target control instruction according to the abnormal type of the target controlled element.

Optionally, the control module is specifically configured to:

if the abnormal type is a bypass type, determining a target bypass switch meeting a bypass condition;

sending a bypass instruction to the target bypass switch.

Optionally, the control module is specifically configured to:

if the abnormal type is the electric processing type, determining a target power supply module needing electric processing;

and sending a power-off instruction to the target power supply module.

The power supply system of engineering test prototype and training equipment of eVTOL aircraft that this application embodiment provided includes: the power supply system comprises a power supply management layer, an interface management layer and a power supply application layer, wherein the power supply management layer comprises a plurality of power supply modules, the interface management layer comprises a bus and power supply interfaces, the power supply application layer comprises electric equipment in engineering test prototypes and/or training equipment, alternating current power supplies provided by a power grid are processed through the plurality of power supply modules in the power supply management layer so as to obtain target power supplies in a preset number, and the target power supplies in the preset number are distributed through the bus and the power supply interfaces according to the power consumption requirements of the electric equipment in the power supply application layer, so that the power supply system is strong in universality, high in configurability, capable of rapidly carrying out configuration switching and suitable for the engineering test prototypes and the training equipment of different eVTOL aircrafts.

Drawings

Fig. 1 is a schematic structural diagram of a power supply system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a power management layer according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a power management layer according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a power management layer according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a UPS module connected to a power distribution module according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram illustrating a modular design of a power module according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an interface management layer according to an embodiment of the present application;

fig. 8 is another schematic structural diagram of an interface management layer according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an interface management layer according to an embodiment of the present application;

fig. 10 is a schematic diagram illustrating a power switching principle provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of another power supply system provided in the embodiment of the present application;

FIG. 12 is a schematic diagram illustrating a connection between a control module and a monitoring module according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of a power supply system according to an embodiment of the present application;

fig. 14 is a schematic flowchart of a control logic of a control module according to an embodiment of the present disclosure.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.

As an emerging industry, the technical development of eVTOL aircraft still faces many problems. For example, the whole eVTOL is electrically driven, so the energy density of the battery is directly related to the load, the endurance mileage and the like; the motor is used as the flying power of the airplane, and the performance and the flying efficiency of the whole airplane are also influenced; in addition, the control problem is that although the system is relatively simple compared with a navigation aircraft, the system can partially refer to the unmanned aerial vehicle control technology and algorithm, but as a brand-new vehicle, the special operation mode of the vehicle puts forward brand-new requirements on the operation, the cost, the safety and the like of the vehicle. Based on the above, the continuous verification and data collection are carried out on all subsystems from parts to the system and further to the whole machine so as to ensure that the performance parameters meet the product requirements; meanwhile, the final sizing of a product requires various iterations of continuous technologies and parts and equipment. The verification test and data collection of the technologies and the equipment are required to be firstly carried out on a ground engineering test prototype; meanwhile, in combination with the characteristics of the technology and the product, the engineering test prototype does not have the condition for assembling the eVTOL aircraft battery pack. Therefore, engineering test prototypes often require external power supplies. In addition, because the technical route and the supply of parts of the eVTOL aircraft are not determined, and frequent equipment iteration or replacement can exist during the development, a set of external power supply system is required to be provided, so that various required power supplies can be provided for an engineering test prototype, and rapid power supply switching can be performed according to the change of the requirement of the parts iterated by the test prototype on the power supply type, so that the purpose that one set of power supply system can meet the power supply requirements of different electric equipment is achieved.

Meanwhile, aiming at the training equipment of the eVTOL aircraft, the whole structure and the whole system are relatively simple according to the volume, the whole cabin environment and the common pursuit of simplified control of the general aircraft. With reference to the configuration of the current general airplane training equipment, aiming at the training equipment of an eVTOL (aircraft virtual terminal) aircraft, high-power equipment such as a battery pack and a motor is unlikely to be additionally arranged, and the part of power and peripheral operating equipment are realized by adopting virtual simulation data. Therefore, the training equipment of the eVTOL aircraft of each host manufacturer is limited to avionics, in-cabin power equipment such as instrument displays, various communication and control equipment, avionics computers, and the like. Therefore, there is also a need to provide an external power supply system for the training equipment of an eVTOL aircraft.

In the engineering development stage, although the product is basically shaped, equipment upgrading, configuration switching and the like still exist by referring to the current general mainstream airplanes such as air passenger A320 and Boeing 737 MAX; in addition, the requirements for the types of power supplies are different due to the differences between the product routes of various host plants and the types of parts. Therefore, as a power supply system of an engineering test prototype and training equipment of an eVTOL aircraft, the power consumption requirement of the whole training equipment is considered, the subdivision requirements of the equipment on power supply types under different configurations are considered, the power supply types are covered, the rapid switching is required, the training efficiency is ensured, and the 'one machine with multiple purposes' of the power supply system is really realized.

The peripheral power supply mode of the traditional aircraft engineering test prototype and the training equipment adopts a master-slave one-to-one connection mode. When an upstream power supply fails, the whole downstream is not provided with power supply input, so that the power supply controls the downstream equipment to be in a function loss state, even the whole power supply system needs to be powered off to eliminate faults, the normal use of the equipment is further influenced, and the development progress and the training are influenced to a certain extent. The power supplies need to be classified and managed so as to accurately position faults and quickly switch backup power supplies, and normal operation of the system is guaranteed.

According to the number of development enterprises engaged in by the current eVTOL, the active investment of capital market; in view of urban development and expectations for the future eVTOL market, it is imperative that a state of flowering through the earth occur. If the traditional mode of an airplane engineering test prototype and training equipment is still adopted, each model of each manufacturer needs to be designed individually aiming at a peripheral power supply system, unnecessary repeated design is caused, research and development cost is increased, the design is complicated, and the method is not beneficial to the rapid iteration of eVTOL and the realization of commercialized products.

Therefore, for an eVTOL development prototype and training device, a power supply system different from a conventional aircraft is needed, which has strong universality, high configurability, capability of rapidly switching configurations, and applicability to different eVTOL aircraft models, so as to meet the requirements of the eVTOL aircraft in the host development stage and training of the training device.

The main ideas of the technical scheme are as follows: aiming at the technical problem that an engineering test prototype and training equipment of an eVTOL (Ethernet virtual tape operation) cabin air device in the prior art do not have a unified power supply system, the application provides a tree + bus type-based hybrid network power supply system, and the modular power supply networking is adopted, so that the requirements of different types and different stages on power supply capacity and types in the development and training processes of the eVTOL cabin air device are met. Meanwhile, bypass design is carried out by combining intelligent monitoring, a response mechanism that power failure can be reported quickly and a standby power circuit can be intervened quickly is obtained, and the influence of the power failure on electric equipment in engineering test prototypes and training equipment is reduced to the maximum extent.

The power supply system provided in the embodiment of the present application is suitable for engineering test prototypes and training devices of an eVTOL aircraft, exemplarily, fig. 1 is a schematic structural diagram of the power supply system provided in the embodiment of the present application, and as shown in fig. 1, the power supply system 100 in this embodiment includes:

a power management layer 110, an interface management layer 120, and a power application layer 130. The power management layer 110, the interface management layer 120, and the power application layer 130 are connected in sequence.

In this embodiment, the power management layer 110 includes a plurality of power modules, and is configured to process the ac power provided by the power grid, so as to obtain a preset number of target power sources.

In this embodiment, the type of the target power source may be determined in advance according to the requirements of the electrical equipment (such as a display device, a communication device, and the like) in the engineering test prototype and the training device of the eVTOL aircraft on the type of the power source, and may be one or more of an ac power source, a dc power source, an intermediate frequency (such as 400Hz), and the like.

The number of target power supplies can be determined in advance according to the requirements of power supply number of electric equipment (such as display equipment, communication equipment and the like) in engineering test prototypes and training equipment of the eVTOL aircraft and design targets (such as the redundant situation of the power supplies of the same kind and the like).

For example, different current processing modules, i.e., power modules, may be disposed in the power management layer 110 to process the ac power provided by the power grid according to different categories, so as to obtain a fixed number of different kinds of power, i.e., target power, that can meet the usage requirement.

In this embodiment, the number of the power modules may be the same as or different from the number of the target power modules, and the power modules may be specifically designed and reserved according to actual situations, which is not limited herein.

In a possible implementation manner, fig. 2 is a schematic structural diagram of a power management layer provided in an embodiment of the present application, and as shown in fig. 2, the power management layer 110 includes a power distribution module 111 and a preset number of power modules 112, which is assumed to be n. As shown in fig. 2, the power distribution module 111 is connected to the n power modules 112, the power distribution module 111 is configured to shunt the ac power provided by the power grid to obtain n ac power, and transmit the n ac power to the n power modules 112 downstream, each power module 112 processes the input ac power to obtain target power of a corresponding type and quantity, and the target power generated by each power module 112 is denoted as S1, S2, … …, and Sn.

In fig. 2, the number of the ac power sources branched by the power distribution module 111 is the same as the number of the power source modules, and is also the same as the number of the final target power sources. In addition, each power module 112 is used to obtain a target power, and the types of the target power obtained by different power modules 112 may be the same or different.

For example, fig. 3 is another schematic structural diagram of a power management layer provided in the embodiment of the present application, as shown in fig. 3, and as shown in fig. 3, according to a difference of types of generated power sources, the power module 112 in the embodiment is divided into three types, namely a standard power module 1121, a dc power module 1122, and an intermediate frequency power module 1123. The standard power module 1121 is configured to directly refer to an ac power output by the power distribution module 111; the dc power supply module 1122 is configured to perform ac-dc conversion processing on the ac power output by the power distribution module 111 to obtain a dc power supply; and the intermediate-frequency power supply module 1123 is configured to perform frequency conversion on the ac power supply output by the power distribution module 111 to obtain an intermediate-frequency power supply, such as a 400Hz power supply. As shown in FIG. 3, assume that the IF power module in the power management layer 110 is used to generate 400Hz power, and the number of standard power modules 1121 disposed in the power management layer 110 is n₁The number of the DC power modules 1122 is n₂N is the number of the intermediate frequency power supply modules 1123₃The power management layer 110 can generate three target power sources in total, namely, 400Hz power sources of an ac power source and a dc power source, and the number of the three target power sources is n₁、n₂、n₃The total number of the target power sources of the power management layer 110 is n₁+n₂+n₃And (4) respectively.

In this embodiment, the power distribution module 111 is connected to each power module 112 to form a tree topology structure, which is beneficial for classification management of power sources, so as to meet different requirements of different electric devices on power types, power capacities, and the like, and improve applicability of the power supply system.

In another possible implementation manner, fig. 4 is a schematic structural diagram of a power management layer provided in an embodiment of the present application, and as shown in fig. 4, the power management layer 110 in the embodiment further includes: an Uninterruptible Power Supply (UPS) module 113. As shown in fig. 4, the UPS module 113 is connected to the power distribution module 111, and is configured to provide an uninterruptible power supply for the power distribution module 111 when the power grid cannot normally supply power, so as to meet the power consumption requirements of the downstream power module 112 and the power application layer 130, thereby achieving the purpose of emergency power supply and improving the safety and reliability of the power supply system.

For example, fig. 5 is a schematic structural diagram of a UPS module accessing a power distribution module according to an embodiment of the present disclosure, and as shown in fig. 5, a three-phase ac power provided by a factory (power grid) is accessed to the power distribution module 111 through a trip protector 1QF, and then accessed to an inlet end of the UPS module, and after the power is processed by the UPS module 113, the reliable and stable three-phase ac power is then accessed to the power distribution module 111 through a trip protector 2 QF. In this embodiment, the UPS technology may also be adopted to perform capacity expansion, parallel operation, and the like on the UPS module 113 to dynamically adjust the power supply capacity of the power distribution module 111, so as to improve the power supply capacity of the system and meet the greater demand of the downstream equipment on electric energy.

As shown in fig. 5, in this embodiment, a plurality of power interfaces may be arranged in the power distribution module 111 in advance according to the type (single-phase or three-phase) of the requirement of the downstream power module 112 for the ac power and the required number of the corresponding type, so as to ensure that the current can be transmitted between the power distribution module 111 and the power module 112, and the power distribution module 111 can generate the ac power meeting the power supply requirement of the downstream power module 112. Illustratively, with continued reference to FIG. 5, FIG. 5 contemplates nine branches A1-CB1, A1-CB2, A1-CB3, A2-CB1, A2-CB2, A2-CB3, A3-CB1, A3-CB2, and A3-CB3 for power connections to the downstream sub-power modules 112. The three-phase alternating current is output by the branches A1-CB1, A2-CB1 and A3-CB1 and is respectively marked as TA 1-3, TA 6-8 and TA 11-13, and corresponding output interfaces are reserved as three-phase interfaces which are respectively marked as A1-CB1-A, B, C, A2-CB1-A, B, C and A3-CB1-A, B and C. The branches A1-CB2, A1-CB3, A2-CB2, A2-CB3, A3-CB2 and A3-CB3 output single-phase alternating currents which are respectively marked as TA4, TA5, TA9, TA10, TA14 and TA15, and corresponding output interfaces are reserved as single-phase interfaces which are respectively marked as A1-CB2, A1-CB3, A2-CB2, A2-CB3, A3-CB2 and A3-CB 3.

In this embodiment, in order to facilitate the use of the downstream power module 112, all output interfaces in the power distribution module 111 adopt a standard unified reserved design, for example, the number strip CB1 in the example in fig. 5 is a three-phase interface output, and the number strips CB2 and CB3 are single-phase interface outputs.

In this embodiment, the output of each branch may be input to the downstream power module as one ac power, or all branches may be grouped according to circumstances, and each group may be input to the downstream power module as one ac power. Illustratively, the nine branches in fig. 5 may be respectively used as 9 ac power sources, or may be grouped into three branches, such as one group numbered as a1, one group numbered as a2, and one group numbered as A3, so as to obtain three ac power sources, thereby implementing a modular universal design of the ac power sources generated by the power distribution module, and facilitating to enhance interchangeability between different ac power sources.

It should be noted that, in the present embodiment, the internal design of each downstream current module 112 (such as the standard power module, the dc power module, and the intermediate frequency power module) can refer to fig. 5 and the above description of the power distribution module 111, and details are not repeated herein.

It should be noted that the division of the power supply modules in fig. 3 and 5 is only an example, and the actual type and number of the power supply modules are not limited, and the type and number of the power supply modules can be appropriately increased or decreased according to the requirements of the engineering test prototype of the actual eVTOL aircraft and the training equipment of the eVTOL aircraft on the power supply. For example, if the engineering test prototype and training equipment of the actual eVTOL aircraft do not need the intermediate frequency power supply, the adaptation and installation of the intermediate frequency power supply module can be eliminated from the system shown in fig. 3, which does not affect the overall function of the whole power supply system.

In addition, in this embodiment, each power module in the power management layer 110 may also adopt a modular design, so as to enhance the flexibility of configuration of the types, capacities, numbers, and the like of the power provided by the entire power supply system, and expand the application range of the power supply system. For example, fig. 6 is a schematic diagram of a modular design of a power module provided in an embodiment of the present application, where a1 to a9 in fig. 6 represent different types of power modules, and 1 to 6 in a4 represent single modules under a certain type of power module, in practical application, a1 to a9 may be arbitrarily installed according to actual requirements to adjust the type and number of power supplies, or the number of single modules may be increased or decreased according to the requirements of the type of power supplies to adjust the capacity of the corresponding type of power supplies.

In this embodiment, when designing the power supply module, the type of the power supply module may be directly selected according to the power supply type requirements of the electric equipment in the engineering test prototype and the training equipment of the eVTOL aircraft. In the design of the number and capacity of the power modules, because the electrical equipment in the engineering test prototype and the training equipment of the eVTOL aircraft has a great possibility of changing, and a certain redundancy design is required, the power modules are reasonably arranged while the power modules are reserved in consideration of the economy and the uncertainty of the electrical equipment, for example, in the embodiment, the redundancy of the power modules can be designed to be 50%.

The power application layer 130, which is a terminal execution layer of the whole power supply system, includes all the electric devices defined by engineering test prototypes of the eVTOL aircraft and/or training devices of the eVTOL aircraft, such as instrument display terminals, control terminals, computers, and the like.

The interface management layer 120, which is used as a bridge between the power management layer 110 and the power application layer 130, is configured to distribute a preset number of target power sources generated by the power management layer 110 to corresponding electric devices in the power application layer 130, so as to implement transmission of electric energy and electric signals between the power management layer 110 and the power application layer 130, and ensure that the electric devices in the power application layer 130 can be smoothly accessed and normally used.

In a possible embodiment, the interface management layer 120 includes a bus 121 and a power supply interface 122, and the bus 121 is used to converge the target power generated in the power management layer, and then the target power is distributed according to the power demand of the power-consuming device in the power application layer 130.

In this embodiment, the power supply interface 122 is divided into an input interface and an output interface, where the input interface is connected to the power management layer 110, and the output interface is connected to the power application layer 130. For example, fig. 7 is a schematic structural diagram of an interface management layer according to an embodiment of the present application, and as shown in fig. 7, after the target power sources S1, S2, and S3 are respectively imported into the bus 121 through three input interfaces, they are distributed to the electric devices E1 and E2 through two output interfaces.

In this embodiment, the number of input interfaces in the interface management layer 120 is equal to the number of target power sources generated in the power management layer 110, and the number of output interfaces is equal to the number of power-consuming devices in the power application layer 130.

In this embodiment, when allocating a target power source, the power type and power consumption parameters, such as power, required by the power consumption device need to be considered. For example, if the type of power supply required by the electric device E1 is dc power and the power is 1000W, the power supply needs to be shunted according to the parameters, so as to ensure that the type of power supply allocated to the electric device E1 is dc power, and the dc power supply can meet the requirement of the electric device E1 on the power supply capacity, that is, ensure that the electric device E1 can normally operate.

In this embodiment, the interface management layer 120 is configured to include the bus 121 and the power supply interface 122, so that one target power source can supply power to one electric device and also can supply power to a plurality of electric devices simultaneously, and meanwhile, for the electric devices requiring multiple power sources and requiring large power, the electric devices can be supplied with power by the plurality of target power sources simultaneously, thereby ensuring that the power consumption requirements of the various electric devices can be met.

In a possible implementation manner, fig. 8 is another schematic structural diagram of an interface management layer provided in an embodiment of the present application, and as shown in fig. 8, the interface management module 120 further includes: bypassing the switch 123. The bypass switches 123 are disposed on the bus 121, and the positions and the number of the bypass switches 123 may be determined according to actual situations.

Optionally, in the present embodiment, a bypass switch 123 is provided between any two adjacent target power supplies. Fig. 9 is a schematic structural diagram of an interface management layer provided in an embodiment of the present application, where fig. 9 illustrates that the power management layer 110 includes 3 power modules 112, three target power sources generated by the three power modules 112 are denoted as S1, S2, and S3, the target power source S1 is used to supply power to the electric devices E11 to E1m, the target power source S2 is used to supply power to the electric devices E21 to E2m, and the target power source S3 is used to supply power to the electric devices E31 to E3 m. As shown in fig. 9, bypass switches 123 are respectively disposed between the target power sources S1 and S2, and between the target power sources S2 and S3, and if one of the power source modules fails, the corresponding bypass switch may be closed, so as to ensure that the corresponding electrical equipment can normally operate. For example, if the power module generating S1 fails, E11-E1m may be powered through S2 by closing the bypass switch between S1 and S2. Where E1m is the mth powered device powered by the target power source S1, E2m is the mth powered device powered by the target power source S2, and E3m is the mth powered device powered by the target power source S3. It should be noted that the number of the electric devices served by different target power sources may be the same or different, and is not limited herein.

In this embodiment, by setting the bypass switch 123 between two adjacent target power supplies, on one hand, multiple sets of simultaneous bypasses can be adopted according to the load requirement to provide more total power supply input, thereby meeting the greater power demand; on the other hand, modules or devices in the circuit, such as a power supply module, electric equipment, an interface, a switch or a line with faults, can be effectively isolated, so that the modules or the devices are convenient to remove, replace, troubleshoot and the like.

In a possible implementation manner, in this embodiment, to improve the adaptability of the interface, both the input interface and the output interface in the interface management layer 120 adopt a modularized and generalized design, so that they can be connected to both the ac system and the dc system. Correspondingly, the input interface can be connected with a power supply module for generating a direct current power supply or an alternating current power supply, and the output interface can be connected with electric equipment using direct current or alternating current.

Through the universal design of the power supply interfaces, on one hand, different power supply interfaces do not need to be reserved for different power supply modules, so that the problem of transitional redundancy of the power supply interfaces is solved; on the other hand, when the power demand of the electric equipment changes, it is only necessary to replace the corresponding power module, which is convenient for replacing the equipment, for example, fig. 10 is a schematic diagram of a power switching principle provided in the embodiment of the present application, as shown in fig. 10, if the ac electric equipment in the dashed line frame becomes the dc electric equipment, the corresponding power module is directly replaced by the dc power module from the standard power module.

In addition, on the basis that the power supply interface is in a modular design, by combining the bypass switch, if the original power supply interface fails, the original input/output interface can be quickly switched through the reserved input/output interface, so that the risk coping capability of the power supply system is enhanced, and the reliability and the stability of the power supply system are improved.

Fig. 11 is another schematic structural diagram of the power supply system according to the embodiment of the present application, and as shown in fig. 11, to implement bypass control, the power supply system 100 according to the embodiment further includes: a monitoring module 140 and a control module 150.

The monitoring module 140 is configured to monitor each module in the power management layer 110 and the power supply interface and the bypass switch in the interface management layer 120, and generate state information and feed the state information back to the control module 150. In one possible embodiment, several monitoring units, such as monitoring probes, are included in the monitoring module 140. Fig. 12 is a schematic diagram illustrating a connection between a control module and a monitoring module according to an embodiment of the present disclosure. As shown in fig. 12, the control module 150 and the monitoring module 140 may be connected through a data switch, so as to realize bidirectional transmission of data between the monitoring module 140 and the control module 150. By arranging a plurality of monitoring units, the control module 150 can acquire different controlled parts (modules, interfaces or bypass switches provided with the monitoring units) in time to control, so that the purpose of real-time and accurate control is achieved.

Fig. 13 is a schematic structural diagram of a power supply system according to an embodiment of the present disclosure, and as shown in fig. 13, in this embodiment, a power distribution module and a power supply interface and a bypass switch in each power module and the interface management layer 120 are configured with corresponding monitoring units, so that the control module 150 effectively monitors the power management layer 110 and the interface management layer 120.

The state information is used for responding to the current state of the controlled element, optionally, the state information includes a controlled element identifier and a state, the controlled element identifier is used for uniquely determining one controlled element, and the state can respond to whether the controlled element is running, whether the controlled element is running abnormally, the type of the abnormal controlled element and the like.

The control module 150 is configured to determine whether to send a target control instruction according to the received state information, and in this embodiment, a temporary abnormal condition in a system operation process is mainly considered, so that types of the target control instruction sent by the control module 150 are mainly three types, namely a bypass instruction, a power-off instruction, and a power-on instruction. The bypass instruction is mainly executed by the bypass switch, specifically, a closing and/or opening operation of the bypass switch, and the power-off instruction and the power-on instruction are mainly executed by a module in the electrical power management layer 110, specifically, a closing and/or opening operation of the power switch. It is understood that, in the actual processing procedure, the control module 150 may send only the bypass instruction, the power-off instruction, or the power-on instruction, or may send two or three of the bypass instruction, the power-off instruction, and the power-on instruction simultaneously, as needed.

In this embodiment, the control module 150 may be an upper computer, or may be other electronic devices with a data processing function, and is not limited herein. It can be understood that the control module 150 stores therein corresponding exception handling logic in advance, so as to ensure that the control module 150 can accurately identify an exception according to the status information, and identify an exception determining execution element (such as a module, a switch or an interface, etc. that needs to be powered off, powered on or bypassed).

In this embodiment, after receiving the status information, the control module 150 may perform the processing of the status information through the following logic: and reading the identifier and the state field in the state information, determining the identified target controlled piece according to the identifier through the processing logic of the prestored state information, and determining whether the target controlled piece is abnormal according to the state. If the target controlled piece is normal, no further processing is carried out; if the target controlled part is abnormal, the abnormal type of the target controlled part needs to be further determined, the type of the target control instruction and the target execution part (a device for executing the target control instruction, which may be the target controlled part or not) are determined according to the abnormal type, and finally, the target control instruction is sent to the target execution part.

In this embodiment, the corresponding relationship between the target control element, the abnormal type, the target control instruction and the target execution element may be stored in the control module 150 in the form of a data table in advance, so that the control module 150 can process the state information conveniently.

In this embodiment, the exception type may be divided into a bypass type and an electrical processing type, and specifically, if the exception type is the bypass type, a target bypass switch (a switch that needs to perform a bypass operation) that satisfies a bypass condition is determined, and a bypass instruction is sent to the target bypass switch; if the exception type is an electric processing type, determining a target power supply module (one or more power supplies related to a target controlled element) needing electric processing, and sending a power-off instruction or a power-on instruction to the target power supply module. The bypass condition is a condition for bypassing the corresponding bypass switch, and may be set in advance according to parameters of the corresponding device in the power supply system, such as power and type of the power module. The electrical processing type can be subdivided into a power-off type and a power-on type, and specifically, if the electrical processing type is the power-off type, the instruction sent to the target power module is a power-off instruction; if the electrical processing type is a power-on type, the instruction sent to the target power module is a power-on instruction.

In this embodiment, the control module 150 may periodically control to start the monitoring program, control the monitoring unit to work, obtain the state information of the controlled component, and execute the corresponding control operation. Exemplarily, taking the bypass of the power module as an example, fig. 14 is a schematic flowchart of a control logic of the control module provided in the embodiment of the present application, as shown in fig. 14, in the embodiment, the bypass control may be specifically subdivided into the following aspects:

(1) and after the monitoring program is started, detecting whether the corresponding controlled piece is in a power-on running state or not through the monitoring unit. When the controlled element does not run, updating the current state and ending the monitoring scanning; and when the controlled element is in operation, monitoring the state of the controlled element in real time.

(2) And when the controlled piece is identified to be abnormal, judging whether power failure is needed or not. If power-off is needed, the executive component is controlled to execute power-off operation, and then whether bypass is needed is judged; if the power is not needed to be cut off, whether the bypass is needed is judged.

(3) A determination is made whether bypass is required. If the bypass is not needed, updating the current state and ending the monitoring scanning; and if the bypass is needed, determining a bypass switch meeting the bypass condition.

Specifically, the types, powers and other parameters of other power modules in the power supply system can be judged one by one, whether the bypass condition is met or not is determined, and then the bypass switch corresponding to the power module meeting the bypass condition, namely the target bypass switch, is determined.

(4) And closing the corresponding bypass switch (target bypass switch), updating the current monitoring state and finishing the monitoring scanning.

In this embodiment, through the cooperation of the monitoring module and the control module, the real-time monitoring and the effective control of the power supply system can be realized, so that when devices (power supply, interface, switch, and the like) in the power supply system break down, the failure can be reported quickly, and a standby device can intervene quickly, thereby reducing the influence of circuit failure on equipment to the maximum extent, and improving the safety and the reliability of the power supply system.

In the embodiment, a power supply system of engineering test prototypes and training equipment of an eVTOL aircraft is arranged, the power supply system comprises a power management layer, an interface management layer and a power application layer, the power management layer comprises a plurality of power modules, the interface management layer comprises a bus and a power supply interface, the power application layer comprises power utilization equipment in the engineering test prototypes and/or the training equipment, alternating current power provided by a power grid is processed through the plurality of power modules in the power management layer to obtain a preset number of target power supplies, the bus and the power supply interface are used for distributing the preset number of target power supplies according to the power utilization requirements of the power utilization equipment in the power application layer through the interface management layer, and the power supply system is high in universality and configurability, can be rapidly switched in configuration and can be suitable for engineering test prototypes and training equipment of different eVTOL aircraft, and the power supply system has higher safety, stability and reliability.

It should be noted that, in the embodiment of the power supply system, the included units and modules are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only used for distinguishing one functional unit from another, and are not used for limiting the protection scope of the application.

It is to be noted that the foregoing is only illustrative of the presently preferred embodiments and application of the principles of the present invention. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A power supply system of engineering test prototype and training equipment of an eVTOL aircraft is characterized by comprising: the system comprises a power management layer, an interface management layer and a power application layer;

2. The system of claim 1, wherein the power management layer further comprises: a power distribution module; the number of the power supply modules is equal to that of the target power supplies; the power distribution module is respectively connected with each power supply module;

3. The system of claim 2, wherein the power management layer comprises a first number of standard power modules, a second number of dc power modules, and a third number of if power modules;

4. The system of claim 2, wherein the power management layer further comprises: an Uninterruptible Power Supply (UPS) module;

5. The system of claim 1, wherein the power interface comprises: an input interface and an output interface; the input interface and the output interface are in a modular universal design; the interface management layer is specifically configured to:

6. The system of claim 5, wherein the interface management layer further comprises: a bypass switch; the bypass switch is arranged between two adjacent target power supplies.

7. The system of claim 6, further comprising: the monitoring module and the control module;

8. The system of claim 7, wherein the state information includes an identification and a state of the controlled object, and the control module is specifically configured to:

9. The system of claim 8, wherein the control module is specifically configured to:

sending a bypass instruction to the target bypass switch.

10. The system of claim 8, wherein the control module is specifically configured to:

and sending a power-off instruction or a power-on instruction to the target power supply module.