A method for satellite power temperature control

Abstract

The invention discloses a function of enabling power temperature control by sending instructions from the ground, and the satellite independently performs periodic power temperature control management. The computer on the satellite first sets the power temperature control target value, and then counts all the active thermal control mechanisms included in the management objects. at t x The open or closed state at any time, and obtain the power of all thermal control mechanisms that are powered on, the upper and lower limits of the temperature control threshold and the temperature of the temperature control point, so that at t x The power of the thermal control mechanism that is turned on at the i-th road at any time is Q i , statistics at t x After the sum of the thermal control power of the m-channel thermal control mechanisms that are in the open state at all times, it will be compared with the power temperature control target value; according to the comparison result, the active thermal control mechanism is turned on or off, so that the total thermal control power and the power temperature control target value are as close as possible. may be equal; therefore, the present invention solves the problem of long-term and large-scale fluctuations in the total power of satellite thermal control, and can reduce the overall energy consumption of the satellite thermal control system to meet the development needs of low-energy thermal control technology.

Description

technical field [0001] The invention belongs to the technical fields of satellite overall design, thermal control and power supply, and in particular relates to a method for power temperature control of satellites. Background technique [0002] Satellite thermal control technology achieves the purpose of temperature control by controlling heat exchange. Active thermal control technology is a closed-loop control technology, during the control process, the temperature of the controlled object can be fed back to the thermal control mechanism. Typically in such thermal control systems there are temperature sensors, controllers and actuators. Whether controllable heat pipes, electric heaters or thermal switches are used as thermal control mechanisms, in a common thermal control system control process, they all take temperature as the control target to meet different temperature requirements. With the development of aerospace technology, advanced low-energy thermal control techn...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a satellite power temperature control method, on the basis of the active thermal control method, the temperature control is changed from a single parameter of temperature to a binary target parameter of "total thermal control power" and "temperature of the controlled object". Temperature control solves the problem of long-term and large-scale fluctuations in the total power of satellite thermal control, and can reduce the overall energy consumption of the satellite thermal control system to meet the development needs of low-energy thermal control technology

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