Title :
Comprehensive analysis of common mode EMI for three-phase UPS system
Author :
Wang, Timothy C Y ; Zhang, Richard ; Sabate, Juan ; Schutten, Marco
Abstract :
A comprehensive analysis of common mode (CM) EMI is conducted for three-phase UPS systems. The analysis is based on both the detailed circuit model and the common mode equivalent circuit model. The parasitic component parameters used in the models are extracted for a 20 kVA UPS, which is used in the experimental verification. The CM noise voltage source and coupling paths are identified. The contributions of the stray parameters CM choke, as well as, battery cable are discussed. Some mitigation methods are proposed. The conclusions are validated through experiment results.
Keywords :
electromagnetic interference; equivalent circuits; inductors; lead acid batteries; uninterruptible power supplies; 20 kVA; EMI; Pb; battery cables; common mode choke; common mode electromagnetic interference; comprehensive analysis; coupling path identification; equivalent circuit model; mitigation methods; noise voltage source; parasitic component parameters; stray parameters; three-phase uninterruptible power supplies;
Conference_Titel :
Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International
Conference_Location :
Xi´an
Print_ISBN :
7-5605-1869-9
