Satellite power temperature control method

Abstract

The invention discloses a method for enabling a power temperature control function by sending an instruction on the ground. The method comprises the steps: enabling a satellite to autonomously carry out periodic power temperature control management; enabling an on-board computer to set a power temperature control target value, and then count the opening or closing states of all the active thermalcontrol mechanisms incorporating the management object at the moment tx, and obtain the power, temperature control threshold upper and lower limits and temperature control point temperature of all thethermal control mechanisms which are powered on and started; setting the power of the i-th path of started thermal control mechanism at the tx moment as Qi, counting the sum of the thermal control power of m paths of thermal control mechanisms which are in a starting state at the tx moment, and comparing the sum with a power temperature control target value; starting or stopping an active thermalcontrol mechanism according to the comparison result, so that the thermal control power sum is equal to the power temperature control target value as much as possible; therefore, the problem of long-term large-range fluctuation of the satellite thermal control total power is solved, and the overall energy consumption of the satellite thermal control system can be reduced so as to meet the development requirement of the low-energy-consumption thermal control technology.

Description

technical field [0001] The invention belongs to the technical field of satellite overall design, thermal control and power supply, and in particular relates to a method for power temperature control of a satellite. 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 the control process of a common thermal control system, they all take temperature as the control target to meet different temperature requirements. With the development of aerospace technology, advanced low-energy thermal contro...

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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