Fault diagnosis of water chillers based on waveletpacket analysis
Zheng Jie, Sun Haijun, Zhang Xia
2015.02.02
Simulates nine common faults of singlescrew chillers. Considers the suction temperature and exhaust temperature of the compressor as characteristic parameters, decomposes and reconstructs the characteristic parameters by waveletpacket analysis method, extracts the signals of fault characters, and establishes the relationship between characteristic vector and system state.