An intelligent autonomous thermal control system

Abstract

The invention discloses an intelligent autonomous thermal control system, which can solve the shortcomings of traditional thermal control systems such as poor sensitivity, slow response speed, and high development cost. The thermal control system includes a sensing unit, an execution unit and a control unit. The heat flow parameters of the deep-cold environment where the aerospace platform is located and the relevant thermal parameters (current, voltage) of the single unit inside the aerospace platform are obtained through the sensing unit, and the obtained thermal parameters are sent to the control unit. The control unit drives the execution unit according to the received thermal parameters, so that the execution unit performs heat autonomous control; at the same time, the execution unit feeds back the control results to the control unit, and the control unit adjusts the execution unit accordingly to ensure that the heat control results are consistent with the set goals , to achieve intelligent closed-loop management of heat.

Description

technical field [0001] The invention relates to a thermal control system, in particular to an autonomous thermal control system, and belongs to the technical field of thermal management. Background technique [0002] At present, the thermal control technology system for aerospace platforms mainly falls into the following two categories: [0003] (1) Thermal control technology system mainly based on passive design; [0004] (2) Thermal control technology system based on active thermal management; [0005] These two technical systems are based on mission design, and their input conditions are definite states or known conditions (including orbital parameters, spacecraft attitude, space environment, flight mission characteristics, spacecraft configuration, instrument and equipment layout, IDS table, etc.), design or sort out the maximum envelope on orbit according to known conditions, and ensure the design margin of temperature by verifying the maximum envelope. [0006] Amon...

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Problems solved by technology

[0007] (1) The robustness of the technical framework is poor, the adaptability to the complex space environment is weak, and it is difficult to realize the autonomous control of the spacecraft in orbit;

[0008] (2) In the ground design, various harsh conditions must be considered, and certain redundancy and margin must also be considered. This design also needs to carry out a large number of ground analysis and tests to verify, so the development time is long and the efficiency is low

[0010] (1) All active thermal control technologies mainly focus on the realization function and control of the hardware itself, and have not established a closed-loop control system;

[0011] (2) The selection and determination of active thermal control technology is still based on known or determined conditions, and ground test verification is still required. There are still certain limitations in the adaptability to unknown environments or space complex tasks, and the development efficiency is still relatively low;

[0012] (3) Part of the thermal control active regulation function still requires ground measurement and control intervention, with a low degree of intelligence and poor timeliness

[0013] From the perspective of thermal control technology development, the thermal control technology system based on passive design and the thermal control technology system based on active thermal management are based on the perception and control of temperature, and all control objects are stand-alone or equipment However, due to the existence of system heat capacity and thermal resistance, temperature is a slow variable, and thermal control through the realization of temperature requirements will inevitably lead to system response lag, unoptimized design, and more importantly, it is difficult to realize intelligent autonomous control

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