TY - GEN
T1 - Balance control of DC-link voltage between phases for cascade active power filter with star configuration
AU - Gao, Congzhe
AU - Jiang, Xinjian
AU - Li, Yongdong
PY - 2011
Y1 - 2011
N2 - Cascade active power filter (CS-APF) is an efficient approach for harmonic suppression in medium voltage networks. With star configuration the cascade stage number is less than with delta configuration. Actually the loss of different phase clusters is different during operation. So the active power needed by each phase cluster is different, especially when the load is unbalanced. However, there is no path for Zero-sequence current, and the i a, ib and ic are not independent, which will increase the difficulty of DC-link voltage control. This paper presents a phase current decoupling control strategy for DC-link voltage control of CS-APF with star configuration. Completely independent control of DC-link voltage between three phases is accomplished. Both the system stability and dynamic performance are improved. Simulation results show that the proposed novel decoupling control method is effective and practical.
AB - Cascade active power filter (CS-APF) is an efficient approach for harmonic suppression in medium voltage networks. With star configuration the cascade stage number is less than with delta configuration. Actually the loss of different phase clusters is different during operation. So the active power needed by each phase cluster is different, especially when the load is unbalanced. However, there is no path for Zero-sequence current, and the i a, ib and ic are not independent, which will increase the difficulty of DC-link voltage control. This paper presents a phase current decoupling control strategy for DC-link voltage control of CS-APF with star configuration. Completely independent control of DC-link voltage between three phases is accomplished. Both the system stability and dynamic performance are improved. Simulation results show that the proposed novel decoupling control method is effective and practical.
UR - https://www.scopus.com/pages/publications/83355177716
U2 - 10.1109/ICEMS.2011.6073417
DO - 10.1109/ICEMS.2011.6073417
M3 - Conference contribution
AN - SCOPUS:83355177716
SN - 9781457710445
T3 - 2011 International Conference on Electrical Machines and Systems, ICEMS 2011
BT - 2011 International Conference on Electrical Machines and Systems, ICEMS 2011
T2 - 2011 International Conference on Electrical Machines and Systems, ICEMS 2011
Y2 - 20 August 2011 through 23 August 2011
ER -