TY - GEN
T1 - Output impedance modeling and stability criterion for parallel inverters with master-slave sharing scheme in AC distributed power system
AU - Liu, Zeng
AU - Liu, Jinjun
AU - Zhao, Yalin
AU - Bao, Weihan
AU - Zhang, Yan
PY - 2012
Y1 - 2012
N2 - The stability criterion of cascaded AC system is usually used to check the stability of AC distributed power system (DPS) by dividing it into a source and a load subsystem. However, the output impedance (admittance) of these subsystems should be obtained, and the stability of subsystems should be checked before applying stability criterion of cascaded AC system. Parallel operation of inverters in source subsystem complicates the output impedance of source subsystem, and can cause source subsystem operating alone instable. In this paper, the output impedance of the inverters operating in parallel with master-slave current sharing scheme is modeled by the I/O character of each inverter operating stand-alone, and a stability criterion was proposed to predict the stability of parallel inverters based on Generalized Nyquist Criterion (GNC). The output impedance model and stability criterion proposed for parallel inverters were verified by simulation results.
AB - The stability criterion of cascaded AC system is usually used to check the stability of AC distributed power system (DPS) by dividing it into a source and a load subsystem. However, the output impedance (admittance) of these subsystems should be obtained, and the stability of subsystems should be checked before applying stability criterion of cascaded AC system. Parallel operation of inverters in source subsystem complicates the output impedance of source subsystem, and can cause source subsystem operating alone instable. In this paper, the output impedance of the inverters operating in parallel with master-slave current sharing scheme is modeled by the I/O character of each inverter operating stand-alone, and a stability criterion was proposed to predict the stability of parallel inverters based on Generalized Nyquist Criterion (GNC). The output impedance model and stability criterion proposed for parallel inverters were verified by simulation results.
UR - https://www.scopus.com/pages/publications/84860115313
U2 - 10.1109/APEC.2012.6166083
DO - 10.1109/APEC.2012.6166083
M3 - 会议稿件
AN - SCOPUS:84860115313
SN - 9781457712159
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1907
EP - 1913
BT - APEC 2012 - 27th Annual IEEE Applied Power Electronics Conference and Exposition
T2 - 27th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2012
Y2 - 5 February 2012 through 9 February 2012
ER -