Fault on-line repairing method for satellite power supply and distribution test system

Abstract

The invention discloses a fault on-line repairing method for satellite power supply and distribution test system, which can fast repair the fault of power supply and distribution test equipments on line in thermal tests, aging tests and other tests in which the satellite needs continuous powering up. The internal components of the power supply and distribution test equipments are encapsulated in the plug-in or guide-way form, and simultaneously modular structure designing method is adopted to lead a magnetic latching relay can be fast replaced when in fault; the digital quantity output and input adopt dual redundant configuration, and the analog quantity output signals are displayed by a measurement display unit; the solar cell array simulator output is directly loaded on the satellite via independent interface; a flow backward resisting diode is connected in series between a voltage stabilization source power supply positive line, and an analog quantity outgoing line is connected with a protective resistor in series to prevent the on-satellite products from being influenced by cable plugging when the satellite is powered up; on the basis of satellite-ground synergic design, the redundant resources can be started by fast replacing the faulted modules one faults occur to the equipments to realize equipment on-line repairing.

Description

technical field [0001] The invention relates to an online fault repair method of a satellite ground power supply and distribution test system, in particular to the construction of a small satellite power supply and distribution test system and its fault online repair method. Background technique [0002] The power supply and distribution test equipment is the key equipment for satellite power supply and distribution control and wired parameter collection. If the equipment fails, the satellite can be powered off during the daily satellite test, and the test can be continued after the equipment problem is located and repaired, but this approach will affect the test progress of the satellite, especially when the satellite requires continuous During the power-on test, once the test equipment fails and cannot be repaired quickly, it will threaten the safety of the on-board products, so the test can only be interrupted and retested after the fault is repaired, which is time-consum...

AI Technical Summary

Problems solved by technology

[0004] The functions of the current power supply and distribution test equipment are relatively unified. For example, the utility model disclosed by the patent application number CN200720173870.4 discloses a satellite ground power supply and distribution test system based on PLC and Profibus field bus, which is mainly controlled by digital output and digital output. Acquisition and analog acquisition function modules, although it can meet the test requirements of satellites, it does not have the ability to repair faults online

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