Ground flight accompanying device of spacecraft power supply and distribution system

Abstract

The invention belongs to the related technical field of spacecraft power supply and distribution systems, and discloses a ground flight accompanying device of a spacecraft power supply and distribution system, which comprises a telemetry interface module used for acquiring on-orbit power supply and distribution data of a spacecraft in real time; and transmitting the on-orbit power supply and distribution data at the initial moment to a spacecraft power supply and distribution system model as an initial value for simulation; a spacecraft power supply and distribution system model used for simulating a power supply and distribution system of the spacecraft according to the received on-orbit power supply and distribution data to obtain simulated power supply and distribution data; and a simulation intervention module used for comparing the on-orbit power supply and distribution data with the corresponding simulation power supply and distribution data, and taking the on-orbit power supply and distribution data at the corresponding moment as an initial value of the spacecraft power supply and distribution system model to perform simulation calculation if an error between the two data exceeds a preset range. The invention can achieve the precise simulation of the non-measurement-and-control arc segment, and meets the monitoring requirements of the non-measurement-and-control arc segment.

Description

technical field [0001] The invention belongs to the relevant technical field of a spacecraft power supply and distribution system, and more specifically relates to a ground accompanying flight device for a spacecraft power supply and distribution system. Background technique [0002] The spacecraft power supply and distribution system is the key subsystem of the spacecraft to generate, store, change, adjust and distribute electrical energy, and is the heart and blood of the spacecraft. With the development of complex spacecraft models represented by deep space exploration and manned spaceflight, the complexity of the power supply and distribution system is also increasing. Whether the power supply and distribution system can reliably and continuously provide stable energy for spacecraft is a matter of concern. Therefore, it is of great significance to conduct in-depth research on the power supply and distribution status of the power supply and distribution system of spacecra...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the energy system model constructed by this energy system model construction method includes a solar cell array model, a battery pack model, a PCU model, a main distributor, and a load. Design information, but currently it is used to input initial values ​​to realize offline simulation. The simulation process is not synchronized with the real process. In addition, during the simulation solution process, the simulation calculation time is shorter than the time interval of receiving data, so the error in the calculation process is gradually The accumulation is large, and the longer the final simulation time, the greater the simulation error, which makes it difficult to reflect the real power supply and distribution status

[0004] Therefore, the existing technology still lacks effective digital means to fully grasp the status of the power supply and distribution system of the spacecraft. During the operation of the spacecraft, the ground staff in the measurement and control arc section can know the power supply of the spacecraft in the air by receiving the information sent by the spacecraft. The power supply and distribution information of the power distribution system, but when the spacecraft runs to a non-measurement and control arc, for example, when the signal is blocked by the earth, the corresponding power supply and distribution information cannot be obtained. The existing technology cannot realize real-time monitoring of the entire cycle of the spacecraft. Therefore, it is of great significance to design a ground accompanying flight device that can obtain the full-cycle power supply and distribution status of the spacecraft power supply and distribution system

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