High-power PCU semi-physical simulation system

Abstract

The invention discloses a high-power PCU semi-physical simulation system, which belongs to the technical field of space power supplies, thereby testing the performance of a PCU in a ground test stage; the system is characterized by at least comprising simulation equipment used for simulating the working states of a space load, a solar cell array and a storage battery, and a main control case simulating an on-satellite computer to carry out signal acquisition and instruction transmission on the PCU; in the test process, the main control case generates an excitation signal to test the performance and function of the PCU or simulate the fault; besides, the system also includes an upper computer for performing data interaction with the simulation equipment through a GPIB (General Purpose Interface Bus) or an Ethernet interface; and the state of the simulation equipment is set through the upper computer. By adopting the technical scheme, the high-power PCU semi-physical simulation system can adapt to test requirements of satellite power supply controllers of different models, and can perform full-coverage test, fault diagnosis and fault simulation on the satellite power supply controller in a ground test stage.

Description

technical field [0001] The invention belongs to the technical field of space power supplies, in particular to a high-power PCU semi-physical simulation system. Background technique [0002] As we all know, the satellite power supply subsystem is an independent subsystem of the satellite, which is responsible for all the energy supply of the satellite throughout its life cycle, and is the core component of the satellite. The satellite power controller is the core of the entire power subsystem, which controls the power flow and ensures that the entire power subsystem meets the power requirements of other subsystems. The performance and stability of the PCU (Power Conditioning Unit, power controller) directly affect the reliability and operating performance of the satellite power subsystem. [0003] Due to the particularity of the aerospace industry, strict requirements are put forward for the reliability of the PCU. By improving the test coverage of the PCU and using a reliab...

AI Technical Summary

Problems solved by technology

At present, the evaluation methods and methods of satellite power supply test systems in various aerospace factories are different, and there is no unified performance evaluation platform, which brings problems of insufficient test coverage and low test reliability.

[0004] In summary, due to the connection between the satellite PCU and multiple devices such as solar arrays, battery simulators, and integrated electronic equipment, there are many electrical performance test items for the PCU, the test steps are complicated, and there are incomplete and inaccurate test data records during the test. question

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