Analysis and processing on abnormal phenomena of momentum wheel of different platform satellite

The structure of satellite system is complex and the operating environment is unique. The satellite needs high reliability. According to the characteristic of incomplete information it is very hard to make the fast and accurate judgment for its existent fault. This paper studies two satellite platforms, which are domestic and oversea respectively; with the similar Abnormal phenomena that momentum wheel appeared in the course of in-orbit management as examples, implements the fault location, puts forward solving measures and has given the flow diagram of fault emergency processing in the daily telemetry and telecommand management.