TY - GEN
T1 - Comparison of four control methods to active power filters applied in accelerator power supplies
AU - Li, Kuang
AU - Xiao, Guochun
AU - Liu, Jinjun
AU - Wang, Zhaoan
PY - 2004
Y1 - 2004
N2 - This paper proposes a hybrid filter structure consisting of a passive power filter and a DC active power filter (DCAPF) applied in high current, high precision and low ripple accelerator power supplies. The configuration of the power system with the DCAPF is firstly introduced. Then four control schemes to obtain the reference signal for the DCAPF control circuit is presented. For each method, the basic operation principle of eliminating output voltage and current ripples is analyzed in detail. Furthermore, the compensation characteristics of each method is discussed and compared. To verify the proposed circuit configuration and the control methods, the testing results of the practical field operation of the DCAPF with a 120kW accelerator power supply is introduced. By adopting the control method of detecting the load ripple voltage, the output current ripple factor and tracking accuracy of the accelerator power supply achieve 8.87 × 10-6(peak-to-peak) and 1 × 10 -4 respectively, which is very satisfactory for this kind of power supplies. The dynamic response of the accelerator power supply is also greatly improved through the application of the DCAPF.
AB - This paper proposes a hybrid filter structure consisting of a passive power filter and a DC active power filter (DCAPF) applied in high current, high precision and low ripple accelerator power supplies. The configuration of the power system with the DCAPF is firstly introduced. Then four control schemes to obtain the reference signal for the DCAPF control circuit is presented. For each method, the basic operation principle of eliminating output voltage and current ripples is analyzed in detail. Furthermore, the compensation characteristics of each method is discussed and compared. To verify the proposed circuit configuration and the control methods, the testing results of the practical field operation of the DCAPF with a 120kW accelerator power supply is introduced. By adopting the control method of detecting the load ripple voltage, the output current ripple factor and tracking accuracy of the accelerator power supply achieve 8.87 × 10-6(peak-to-peak) and 1 × 10 -4 respectively, which is very satisfactory for this kind of power supplies. The dynamic response of the accelerator power supply is also greatly improved through the application of the DCAPF.
UR - https://www.scopus.com/pages/publications/8744294849
U2 - 10.1109/PESC.2004.1355850
DO - 10.1109/PESC.2004.1355850
M3 - 会议稿件
AN - SCOPUS:8744294849
SN - 0780383990
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 794
EP - 799
BT - 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC4
T2 - 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Y2 - 20 June 2004 through 25 June 2004
ER -