Air refueling reel electric drive system comprehensive test platform and test method

Abstract

The invention relates to the technical field of space flight and aviation, in particular to a comprehensive test platform and test method for an air refueling reel electric drive system. The test platform is composed of an electric dynamometer, an electric dynamometer loader, a test cabinet and an intermediate frequency power supply. The electric dynamometer simulates the load of a reel in the air refueling process, and the main body is a permanent magnet synchronous motor. The electric dynamometer loader is used for controlling a load motor so as to simulate a load change process under different working conditions of aerial refueling; the test cabinet simulates and sends out various working condition control instructions in the air refueling process through a human-computer interaction interface; the medium-frequency power supply simulates a power supply provided by the airplane for the electric driving device. According to the invention, the huge cost for building a full-physical test environment in each test process is reduced, the automation degree of the test is improved, the economic benefit is prominent, and meanwhile, reference is provided for the design of other electric drive device test platforms with complex working conditions.

Description

Technical Field

[0001] The invention relates to the field of aerospace technology and is a comprehensive test platform and test method for an aerial refueling reel electric drive system. Background Art

[0002] With the development of domestic aerial refueling technology, there are great requirements for the test delivery cycle of the aerial refueling reel electric drive device. The test process of the early test pieces requires the construction of a full physical verification test platform, which not only has a large workload, a long cycle, and requires the collaboration of multiple people, but also cannot obtain the state parameters of the test bench itself in time during the test, resulting in damage to the aerial refueling reel electric drive device. In the context of reducing test costs and large-scale delivery, it is urgent to develop a comprehensive test platform for the aerial refueling reel electric drive system with high automation integration and strong reliability to meet the growing mission requirements. Summary of the invention

[0003] In order to solve a series of problems in the test process of the aerial refueling reel electric drive device, such as the long period of building a full physical verification test platform, high labor cost, complex test process, and easy damage to the aerial refueling reel electric drive device. The present invention designs a comprehensive test platform for the aerial refueling reel electric drive system with high automation integration, strong reliability and good repeatability to optimize the test process of each stage of the aerial refueling reel electric drive device. The technical solution is as follows:

[0004] A comprehensive test platform for an aerial refueling reel electric drive system includes an electric dynamometer, an electric dynamometer loader, a test cabinet, and a medium frequency power supply. The electric dynamometer and the driving motor of the aerial refueling reel electric drive device are mechanically connected through a coupling; the electric dynamometer and the electric dynamometer loader are connected through cables; the electric dynamometer loader and the test cabinet are connected through a data transmission bus to realize control command transmission; the test cabinet and the electric dynamometer are connected through a torque sensor and a cable to realize the sampling of the state parameters of the accompanying test motor; the test cabinet and the aerial refueling reel electric drive device are connected through sensors, data transmission buses, and I / O signal lines to realize the communication and transmission of command signals and state parameters of the aerial refueling reel electric drive device; the medium frequency power supply and the aerial refueling reel electric drive device are connected through cables; the medium frequency power supply, the test cabinet, the electric dynamometer loader and the power grid are connected through cables.

[0005] The sensors include: a voltage sensor, a current sensor, a torque sensor, and a temperature sensor; the data transmission bus includes: an RS485 bus, an RS422 bus, and a CAN bus.

[0006] The test cabinet includes a human-machine interface unit, an industrial computer, a data acquisition unit, and a communication unit. The human-machine interface unit is a test software developed on the industrial computer based on the Labview language; the data acquisition unit of the industrial computer integrates sensors to realize the acquisition of the state parameters of the aerial refueling reel electric drive device and the electric dynamometer; the communication unit of the industrial computer integrates I / O signal lines and data transmission buses to realize the transmission of command signals and state parameters.

[0007] The human-computer interaction interface is developed by Labview graphical programming language, and the software logic is as follows: first, after the software receives the operator's single working condition instruction, it sends the control instruction of the aerial refueling reel electric drive controller of the working condition through the I / O signal and the data transmission bus, so that the aerial refueling reel drive motor reaches the control speed; secondly, after the industrial computer collects the control speed through the sensor, it sends the test motor control instruction to the electric dynamometer loader through the data transmission bus, and drives the test motor to simulate the load that the aerial refueling reel needs to bear in the working condition; then the industrial computer determines whether the working condition test is over through the state parameters of the aerial refueling reel electric drive device received by the data transmission bus; finally, the industrial computer sends the test motor unloading instruction through the data transmission bus, and when the sampled load torque drops to 0, the industrial computer sends an instruction to the aerial refueling reel electric drive device to stop running, that is, the test verification of the single working condition is completed. During the entire test process, the human-computer interaction interface real-time feedbacks the state parameters and instruction parameters of the aerial refueling reel electric drive device through the data transmission bus communication, and when a fault parameter occurs, the shutdown protection is realized.

[0008] The electric dynamometer loader includes a test motor frequency converter and a test motor controller, which are connected by a cable. The test motor frequency converter converts industrial three-phase electricity into the power type required by the test motor in the electric dynamometer module through the test motor controller.

[0009] The electric dynamometer includes a test motor, a torque sensor, and a water cooler. The torque sensor is installed on the shaft of the test motor to collect the speed and torque state parameters of the test motor; the water cooler cools the test motor to prevent the test motor from being damaged by heating during long-term testing.

[0010] The medium frequency power supply converts industrial three-phase electricity into the type of power provided by the aircraft to the aerial refueling reel electric drive device.

[0011] A comprehensive test method for an aerial refueling reel electric drive system comprises the following steps:

[0012] Step 1: The aerial refueling reel electric drive system integrated test platform and the aerial refueling reel electric drive device are powered on and establish communication to complete the initialization settings.

[0013] Step 2: Send the aerial refueling reel "air rewind" command through the test cabinet human-computer interaction interface. The industrial computer transmits the corresponding command to the aerial refueling reel electric drive controller through the data communication bus and I / O signal. The controller controls the aerial refueling reel drive motor to reach the speed state under the command condition. In this step, the test cabinet industrial computer collects and receives the status parameters of the aerial refueling reel electric drive device in real time through sensors and data communication buses.

[0014] Step 3: The test cabinet industrial computer determines the state parameters of the aerial refueling reel electric drive device. After the drive motor reaches the specified speed, it sends the test motor control instruction to the test motor controller through the data communication bus, drives the test motor to simulate the load change of the aerial refueling reel, and collects the feedback value from the test motor torque sensor. In this step, the test cabinet industrial computer collects and receives the state parameters of the aerial refueling reel electric drive device in real time through sensors and data communication buses.

[0015] Step 4: The test cabinet industrial computer obtains the state parameters of the aerial refueling reel electric drive device under the "air rewinding" condition through sensor data acquisition and data communication bus, including torque, speed, current, and voltage, to determine whether it passes the test of this condition.

[0016] Step 5: When the discrimination test is passed, the test cabinet industrial computer sends shutdown instructions to the electric dynamometer and the aerial refueling reel electric drive device in turn, and the test ends.

[0017] The beneficial effects of this application are:

[0018] The present invention develops a comprehensive test platform for an aerial refueling reel electric drive system, which has the ability to test all operating conditions of the aerial refueling reel electric drive device, solves the problem that the device needs to be equipped with an aerial refueling hose, an aerial refueling load simulation vehicle, an aerial refueling control device and other accessories during the previous full physical test process, optimizes the process of test environment construction to a great extent, reduces the time spent on each stage of testing of the aerial refueling reel electric drive device, and has outstanding economic benefits; at the same time, the comprehensive test platform for the aerial refueling reel electric drive system has a high degree of automation, and can timely identify various faults of the aerial refueling reel electric drive device through data communication and sensor signals and provide protection, providing a reference for the design of other electric drive device test platforms with complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the structural diagram of the comprehensive test platform for the aerial refueling reel electric drive system.

[0020] Figure 2 It is a flow chart of the comprehensive test method of the aerial refueling reel electric drive system; DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the implementation of the present invention clearer, the technical scheme in the embodiment of the present invention will be described in more detail in combination with the embodiment of the present invention. In the example, the same or similar reference numerals throughout represent the same or similar originals or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. The embodiments described below by reference are exemplary and intended to be used to explain the present invention, and should not be construed as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. The following is a detailed description in combination with the embodiments of the present invention.

[0022] The comprehensive test platform for the electric drive system of the aerial refueling reel includes an electric dynamometer, an electric dynamometer loader, a test cabinet, and a medium-frequency power supply. The electric dynamometer and the driving motor of the aerial refueling reel electric drive device are mechanically connected through a coupling to realize mechanical energy transmission; the electric dynamometer and the electric dynamometer loader are connected through cables to realize power transmission; the electric dynamometer loader and the test cabinet are connected through a data transmission bus to realize control command transmission; the test cabinet and the electric dynamometer are connected through torque sensors and cables to realize the sampling of the state parameters of the accompanying test motor; the test cabinet and the aerial refueling reel electric drive device are connected through sensors, data transmission buses, and I / O signal lines to realize the communication and transmission of the command signals and state parameters of the aerial refueling reel electric drive device; the medium-frequency power supply and the aerial refueling reel electric drive device are connected through cables to realize power transmission; the medium-frequency power supply, the test cabinet, the electric dynamometer loader and the power grid are connected through cables to realize power transmission.

[0023] The sensors include: a voltage sensor, a current sensor, a torque sensor, and a temperature sensor; the data transmission bus includes: an RS485 bus, an RS422 bus, and a CAN bus.

[0024] The test cabinet includes a human-machine interface unit, an industrial computer, a data acquisition unit, and a communication unit. The human-machine interface unit is a test software developed on the industrial computer based on the Labview language; the data acquisition unit of the industrial computer integrates sensors to realize the acquisition of the state parameters of the aerial refueling reel electric drive device and the electric dynamometer; the communication unit of the industrial computer integrates I / O signal lines and data transmission buses to realize the transmission of command signals and state parameters.

[0025] The human-computer interaction interface is developed by Labview graphical programming language, and the software logic is as follows: first, after the software receives the operator's single working condition instruction, it sends the control instruction of the aerial refueling reel electric drive controller of the working condition through the I / O signal and the data transmission bus, so that the aerial refueling reel drive motor reaches the control speed; secondly, after the industrial computer collects the control speed through the sensor, it sends the test motor control instruction to the electric dynamometer loader through the data transmission bus, and drives the test motor to simulate the load that the aerial refueling reel needs to bear in the working condition; then the industrial computer determines whether the working condition test is over through the state parameters of the aerial refueling reel electric drive device received by the data transmission bus; finally, the industrial computer sends the test motor unloading instruction through the data transmission bus, and when the sampled load torque drops to 0, the industrial computer sends an instruction to the aerial refueling reel electric drive device to stop running, that is, the test verification of the single working condition is completed. During the entire test process, the human-computer interaction interface real-time feedbacks the state parameters and instruction parameters of the aerial refueling reel electric drive device through the data transmission bus communication, and when a fault parameter occurs, the shutdown protection is realized.

[0026] The electric dynamometer loader includes a test motor frequency converter and a test motor controller, which are connected by a cable. The test motor frequency converter converts industrial three-phase electricity into the power type required by the test motor in the electric dynamometer module through the test motor controller.

[0027] The electric dynamometer includes a test motor, a torque sensor, and a water cooler. The torque sensor is installed on the shaft of the test motor to collect the speed and torque state parameters of the test motor; the water cooler cools the test motor to prevent the test motor from being damaged by heating during long-term testing.

[0028] The medium frequency power supply converts industrial three-phase electricity into the type of power provided by the aircraft to the aerial refueling reel electric drive device.

[0029] The electric dynamometer simulates the load during aerial refueling, and its main body is a permanent magnet synchronous motor; the electric dynamometer loader is used to control the load motor to simulate the load change process under different working conditions of aerial refueling; the test cabinet simulates the issuance of control instructions for various working conditions during aerial refueling through the human-computer interaction interface; the medium-frequency power supply simulates the power provided by the aircraft to the electric drive device.

[0030] This technology is mainly used in the test process of each stage of the aerial refueling reel electric drive device, which improves the degree of automation. By sending instructions through the human-computer interaction interface, the various complex working conditions of the electric drive device during the aerial refueling process are effectively simulated, and various tests of the aerial refueling reel electric drive device are completed. The present invention not only reduces the huge cost of building a full physical test environment for each test process, improves the degree of automation of the test, and has outstanding economic benefits, but also provides a reference for the design of other electric drive device test platforms with complex working conditions.

[0031] Among them, the electric dynamometer simulates the load of the reel during aerial refueling and has the ability to operate in four quadrants. It can be used as the load of the driving motor of the aerial refueling reel under the working conditions of rewinding and manual rewinding, and can also be used as the power machine of the aerial refueling reel under the working conditions of towing. When operating as a load, the electric dynamometer can provide a certain load from zero speed to the highest speed. The loading characteristics are constant torque characteristics from zero speed to rated speed, and constant power characteristics from rated speed to maximum speed. When operating as a power machine, the electric dynamometer can achieve constant speed or constant torque operation.

[0032] Among them, the electric dynamometer loader controls the load changes of the electric dynamometer when the aerial refueling reel is in different working conditions. When it is operated under load under conditions such as rewinding and manual rewinding, it controls the electric dynamometer to change the load size and feeds energy back to the power grid. It has constant speed, constant torque, speed mutation, and torque mutation control functions; when it is operated as a power machine under towing conditions, it provides a power source for the electric dynamometer and can realize speed and torque adjustment.

[0033] Among them, the test cabinet can send various instructions of IO, RS422, CAN and other buses through the human-computer interaction interface written in Labview language to realize tests of different projects and different working conditions; it can simultaneously view the IO, RS422 and CAN bus information sent back by the aerial refueling reel electric drive controller, and timely obtain the various status parameters and fault information of the aerial refueling reel electric drive device; it can simultaneously view the torque, temperature, speed, current, voltage and other parameters fed back by various sensors and special test instruments, and timely capture the abnormalities of the aerial refueling reel electric drive device during the test to protect the device.

[0034] Among them, the test cabinet can enter the communication debugging interface to view the communication status of the test software and sensors, test equipment, including the power analyzer, RS485 bus communication of the test motor controller, temperature patrol meter, CAN bus communication of the aerial refueling reel electric drive controller, RS422 bus communication, etc., and can troubleshoot in real time based on the feedback of communication connection information.

[0035] Among them, eleven single-condition tests and continuous-condition tests of the aerial refueling reel electric drive device can be completed through the human-machine interaction interface of the test cabinet, namely, Project 1: ground / air control mode switching; Project 2: ground control mode, rewinding condition; Project 3: ground control mode, rewinding deceleration condition; Project 4: ground control mode, towing deceleration condition; Project 5: air working mode, rewinding condition; Project 6: air working mode, rewinding deceleration condition; Project 7: air working mode, towing condition; Project 8: air working mode, towing deceleration condition; Project 9: air working mode, response condition; Project 10: air working mode, manual rewinding condition; Project 11: hose delivery.

[0036] Among them, the medium-frequency power supply module converts industrial three-phase electricity into the power supply type required by the aerial refueling reel electric drive device. At the same time, through the design of automatic tripping protection of the input power contactor, it has the ability to quickly detect overvoltage, overcurrent, overtemperature, and power supply short circuit, thereby realizing the protection of the power devices of the aerial refueling reel electric drive device.

[0037] The busbar assembly (3) includes a busbar, an input terminal, and an output terminal, which are connected in a relationship. The input terminal connects the fuse (4) to the busbar, and the output terminal connects the power input end of the high-voltage DC contactor assembly (2) to the busbar. Through the coordination of the busbar and the input terminal and the output terminal, one input power source can be conveniently converted to output, thereby realizing dual-redundancy conversion of power supply.

[0038] It is understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and unless defined as here, will not be interpreted with idealized or overly formal meanings. The specific implementation methods described above further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Within the spirit and principle of the present invention, any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment of equivalent changes for application in other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the technical solution content of the present invention, any modification, equivalent replacement, improvement, etc., made according to the technical essence of the present invention, should be included in the protection scope of the present invention.

Claims

1. A comprehensive test platform for the electric drive system of an aerial refueling reel, characterized in that: Including electric dynamometer, electric dynamometer loader, test cabinet, medium frequency power supply; The electric dynamometer and the driving motor of the aerial refueling reel electric drive device are mechanically connected through a coupling; the electric dynamometer and the electric dynamometer loader are connected through cables; the electric dynamometer loader and the test cabinet are connected through a data transmission bus to realize control command transmission; the test cabinet and the electric dynamometer are connected through a torque sensor and a cable to realize the sampling of the state parameters of the accompanying test motor; the test cabinet and the aerial refueling reel electric drive device are connected through sensors, data transmission buses, and I / O signal lines to realize the communication and transmission of command signals and state parameters of the aerial refueling reel electric drive device; The medium frequency power supply is connected to the aerial refueling reel electric drive device through cables; the medium frequency power supply, the test cabinet, the electric dynamometer loader and the power grid are connected through cables.

2. The test platform according to claim 1, characterized in that: The sensors include: a voltage sensor, a current sensor, a torque sensor, and a temperature sensor; the data transmission bus includes: an RS485 bus, an RS422 bus, and a CAN bus.

3. The test platform according to claim 2, characterized in that: The test cabinet includes a human-machine interface unit, an industrial computer, a data acquisition unit, and a communication unit; the human-machine interface unit is a test software developed on the industrial computer based on the Labview language; the data acquisition unit of the industrial computer is an integrated sensor to realize the collection of the state parameters of the aerial refueling reel electric drive device and the electric dynamometer; the communication unit of the industrial computer is an integrated I / O signal line and a data transmission bus to realize the transmission of command signals and state parameters.

4. The test platform according to claim 3, characterized in that: The human-machine interaction interface is developed by Labview graphical programming language, and the software logic is as follows: first, after receiving the single working condition instruction from the operator, the software sends the control instruction of the aerial refueling reel electric drive controller of the working condition through the I / O signal and the data transmission bus, so that the aerial refueling reel drive motor reaches the control speed; secondly, after the industrial computer collects the control speed through the sensor, it sends the test motor control instruction to the electric dynamometer loader through the data transmission bus, and drives the test motor to simulate the load that the aerial refueling reel needs to bear in the working condition; then the industrial computer determines whether the working condition test is over through the state parameters of the aerial refueling reel electric drive device received by the data transmission bus; finally, the industrial computer sends the test motor unloading instruction through the data transmission bus, and when the sampled load torque drops to 0, the industrial computer sends an instruction to the aerial refueling reel electric drive device to stop running, that is, the test verification of the single working condition is completed; during the whole test process, the human-machine interaction interface real-time feedbacks the state parameters and instruction parameters of the aerial refueling reel electric drive device through the data transmission bus communication, and when a fault parameter occurs, the shutdown protection is realized.

5. The test platform according to claim 4, characterized in that: The electric dynamometer loader includes a test motor frequency converter and a test motor controller, which are connected by a cable. The test motor frequency converter converts industrial three-phase electricity into the power type required by the test motor in the electric dynamometer module through the test motor controller.

6. The test platform according to claim 5, characterized in that: The electric dynamometer includes a test motor, a torque sensor, and a water cooler; the torque sensor is installed on the test motor shaft to collect the speed and torque state parameters of the test motor; the water cooler realizes water cooling and heat dissipation of the test motor to prevent the test motor from being damaged by heat generated during long-term testing.

7. The test platform according to claim 6, characterized in that: The medium frequency power supply converts industrial three-phase electricity into the type of power provided by the aircraft to the aerial refueling reel electric drive device.

8. A test method for a comprehensive test platform for an aerial refueling reel electric drive system, characterized in that: The steps include: Step 1: The aerial refueling reel electric drive system integrated test platform and the aerial refueling reel electric drive device are powered on and communication is established to complete the initialization settings; Step 2: Send the aerial refueling reel "air rewind" command through the test cabinet human-computer interaction interface, and the industrial computer transmits the corresponding command to the aerial refueling reel electric drive controller through the data communication bus and I / O signal. The controller controls the aerial refueling reel drive motor to reach the speed state under the command condition. In this step, the test cabinet industrial computer collects and receives the state parameters of the aerial refueling reel electric drive device in real time through sensors and data communication buses; Step 3: The test cabinet industrial computer determines the state parameters of the aerial refueling reel electric drive device. After the drive motor reaches the specified speed, it sends the test motor control instruction to the test motor controller through the data communication bus, drives the test motor to simulate the load change of the aerial refueling reel, and collects the feedback value from the test motor torque sensor. In this step, the test cabinet industrial computer collects and receives the state parameters of the aerial refueling reel electric drive device in real time through sensors and data communication buses; Step 4: The test cabinet industrial computer obtains the state parameters of the aerial refueling reel electric drive device under the "air rewinding" working condition through sensor data acquisition and data communication bus, including torque, speed, current, and voltage, to determine whether the test of this working condition has been passed; Step 5: When the discrimination test is passed, the test cabinet industrial computer sends shutdown instructions to the electric dynamometer and the aerial refueling reel electric drive device in turn, and the test ends.

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