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Flywheel simulator with fault simulating function and realizing method

A fault simulation and simulator technology, applied in simulators, instruments, computer control, etc., can solve the problem that the flywheel simulator does not support the fault simulation function

Inactive Publication Date: 2011-08-31
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing flywheel simulator does not support the fault simulation function, the present invention provides a flywheel simulator with fault simulation function and its implementation method

Method used

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  • Flywheel simulator with fault simulating function and realizing method
  • Flywheel simulator with fault simulating function and realizing method
  • Flywheel simulator with fault simulating function and realizing method

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Experimental program
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specific Embodiment approach 1

[0016] Specific implementation mode 1. Combination figure 1 Describe this embodiment, the flywheel simulator with fault simulation function, it consists of RS-485 transceiver 1, control voltage input interface 2, A / D converter 3, data processor DSP4, digital isolation magnetic coupler 5, the first D / A converter 7-1, second D / A converter 7-2, drive chip 7-3, first analog output port 6-1, second analog output port 6-2, flywheel speed output port 6 -3 and the flywheel speed direction output port 6-4, the serial communication port of the RS-485 transceiver 1 is connected with the RS-485 serial communication port of the data processor DSP4, and the RS-485 transceiver 1 is used for Inject the parameters and fault types of the flywheel simulator, the output terminal of the control voltage input interface 2 is connected to the input terminal of the A / D converter 3, the signal input / output terminal of the A / D converter 3 is connected to the voltage signal input of the data processor D...

specific Embodiment approach 2

[0018] Specific embodiment two, combine figure 2 Describe this embodiment, this embodiment is to use the simulator described in specific embodiment 1 to realize the method for flywheel fault simulation, each fault simulation is specifically as follows:

[0019] Step A, parameters and fault types are injected into the main controller 4-1 of the flywheel simulator through the RS-485 transceiver 1, and the parameters include flywheel model parameters, simulation cycle information, flywheel shaft temperature parameters and flywheel motor current data parameters;

[0020] Step B, the A / D converter 3 collects the current control voltage U, and transmits the voltage U to the main controller 4-1 of the flywheel simulator;

[0021] Step C, the main controller 4-1 of the flywheel simulator updates the content of the control voltage buffer a to the control voltage U obtained in step B;

[0022] Step D, the main controller 4-1 of the flywheel simulator analyzes the fault injection instr...

specific Embodiment approach 3

[0026] Specific implementation mode three: combination image 3 Describe this embodiment, this embodiment is a further description of step D:

[0027] Step D1, determine the fault type, if the fault type is 0, then execute step D2, if the fault type is 1, then execute step D4, if the fault type is 2, then execute step D5, if the fault type is 3, then execute step D8, the fault If the fault type is 4, execute step D11; if the fault type is 5, execute step D16;

[0028] Step D2, the main controller 4-1 of the flywheel simulator calculates according to the mathematical model of the flywheel simulator, and obtains the flywheel speed pulse signal and the speed direction signal;

[0029] Step D3, read the flywheel shaft temperature parameter and the flywheel motor current data parameter in the data injected by the RS-485 transceiver 1, obtain the telemetry flywheel shaft temperature signal and the telemetry flywheel motor current signal, and the fault simulation ends;

[0030] Step ...

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Abstract

The invention discloses a flywheel simulator with a fault simulating function and a realizing method and relates to a flywheel simulator and a fault simulation realizing method thereof. The flywheel simulator with the fault simulating function and the realizing method solve a problem that the flywheel simulator in the prior art does not support the fault simulating function. The flywheel simulator injects fault parameters into a digital signal processor DSP through a RS-485 receiver; the digital signal processor DSP acquires a control voltage signal through an A / D converter, then acquires thefault parameters corresponding to a given fault state from fault parameters by computing according to the injected fault parameters, sends the fault parameters to a D / A converter and a driving chip through a digital-isolation magnetic coupling, and finally acquires the four-channel signal output for simulating the fault. The output fault parameter comprises a flywheel rotating speed pulse, a rotating speed direction, a telemetering flywheel shaft temperature signal and a telemetering flywheel motor current signal. The flywheel simulator with the fault simulating function and the realizing method are applicable to the test and simulation of a satellite altitude control system.

Description

technical field [0001] The invention relates to a flywheel simulator and a method for realizing fault simulation thereof. Background technique [0002] The flywheel is an inertial device, which plays a vital role in the steady-state flight attitude control of the satellite. The three-axis stability control system of the satellite uses the flywheel as the main executive component. The control system using the flywheel can ensure the reliability and long life of the satellite in orbit. Compared with the jet control method, the flywheel control method has obvious advantages such as less fuel consumption, high control precision, no environmental pollution, and long life. So it is widely used in satellite attitude control. [0003] The reaction flywheel is the main type of flywheel products. The control system uses the reaction torque generated by the forward and reverse acceleration and deceleration of the flywheel to directly act on the satellite body to generate control torq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
Inventor 赵光权杨智明刘兆庆刘旺郑博彭喜元
Owner HARBIN INST OF TECH
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