A method for realizing autonomous thermal control function based on hardware hysteresis circuit

Abstract

The invention relates to a hardware-hysteresis-circuit-based method for realizing an autonomous thermal control function. The method is characterized in that reference signal circuits 1, 2, 3, control circuit reference voltage circuits 1, 2, 3, sensor voltage-stabilizing conversion circuits 1, 2, 3, temperature hysteresis control circuits 1, 2, 3 and a one-out-of-three circuit are arranged. Output terminals of the reference signal circuits 1, 2, 3 are connected with input terminals of the control circuit reference voltage circuits 1, 2, 3 and the sensor voltage-stabilizing conversion circuits 1, 2, 3; output terminals of the control circuit reference voltage circuits 1, 2, 3 and the sensor voltage-stabilizing conversion circuits 1, 2, 3 are connected with input terminals of the temperature hysteresis control circuits 1, 2, 3; output terminals of the temperature hysteresis control circuits 1, 2, 3 are connected with an input terminal of the one-out-of-three circuit; and an output terminal of the one-out-of-three circuit outputs a temperature drive control signal. According to the invention, a temperature drive control signal is changed based on changing of a temperature signal; and an objective of accurate and autonomous temperature control is achieved by controlling turning on or off of a heating device.

Description

technical field [0001] The invention belongs to the technical field of temperature regulation and control of a power supply system, and in particular relates to an extra-cabin super-high-power device with a low flight orbit and high-precision independent thermal control. Background technique [0002] The 20kW ultra-high-power equipment outside the space station's experimental cabin has an orbital altitude of 200km~400km. It adopts an independent thermal control system with a built-in heating device. The power of satellite power subsystem equipment with independent thermal control at the same orbital altitude is relatively small. The independent thermal control system of the 20kW ultra-high power equipment outside the space station's experimental cabin is used for the first time in my country's aerospace field. When the 20kW ultra-high-power equipment outside the space station experiment cabin is in orbit, it is necessary to ensure that the temperature of the equipment instal...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the stand-alone equipment outside the space station is easily affected by the harsh external space environment, and the temperature thermal shock is relatively large, especially for the super-high-power stand-alone outside the cabin, the primary heat consumption is relatively large, and it is difficult to ensure the working temperature of the product on orbit. , and indirect control is difficult to achieve, requiring the characteristics of independent thermal control of the product, and invented a method based on hardware hysteresis circuit to realize independent thermal control function

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