TY - GEN
T1 - Reference current regulation for inverter with virtual resistor damping control
AU - Nie, Cheng
AU - Lei, Wanjun
AU - Wang, Yue
AU - Li, Tian
AU - Zhang, Yan
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/4/18
Y1 - 2018/4/18
N2 - Inverter with output LCL filter is widely used in power system. It has better switching frequency harmonic suppression effect, meanwhile it has resonance problem. Virtual resistor damping can suppress the resonance, but it affects the current control character, particularly for harmonic current. This paper develops the detailed models of the inverter with virtual resistor damping for output harmonic current control. Based on the analysis of current control loop with virtual resistor, the transfer function of current loop is obtained. Moreover, with the optimal value of virtual resistor, the performance of inverter is similar to 2nd order low pass filter. To control the output current equals to reference current, reference regulation method is proposed. At last, simulation and experimental results verify the correctness of theatrical analysis and effectiveness of the method.
AB - Inverter with output LCL filter is widely used in power system. It has better switching frequency harmonic suppression effect, meanwhile it has resonance problem. Virtual resistor damping can suppress the resonance, but it affects the current control character, particularly for harmonic current. This paper develops the detailed models of the inverter with virtual resistor damping for output harmonic current control. Based on the analysis of current control loop with virtual resistor, the transfer function of current loop is obtained. Moreover, with the optimal value of virtual resistor, the performance of inverter is similar to 2nd order low pass filter. To control the output current equals to reference current, reference regulation method is proposed. At last, simulation and experimental results verify the correctness of theatrical analysis and effectiveness of the method.
KW - 2nd order low pass filter(LPF)
KW - LCL inverter
KW - Reference regulation
KW - Virtual resistor damping
UR - https://www.scopus.com/pages/publications/85046935782
U2 - 10.1109/APEC.2018.8341140
DO - 10.1109/APEC.2018.8341140
M3 - 会议稿件
AN - SCOPUS:85046935782
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1019
EP - 1024
BT - APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Y2 - 4 March 2018 through 8 March 2018
ER -