TY - GEN
T1 - A repetitive-based controller in stationary reference frame for D-Statcom in unbalanced operation
AU - Escobar, G.
AU - Valdez, A. A.
AU - Torres-Olguín, R. E.
AU - Martínez-Montejano, M. F.
PY - 2006
Y1 - 2006
N2 - The paper presents a repetitive-based controller for a three-phase three-wire Distribution Static synchronous Compensator (D-Statcom) aimed to compensate reactive power and unbalanced harmonics in the general case of distorted and unbalanced source voltages and load currents. The repetitive scheme involves a negative feedback structure and is aimed to exclusively compensate odd harmonics, thus, reducing the possibility of reinjecting unnecessary distortion into the system. This is in contrast to other repetitive-based works that use traditional positive feedback structures aimed to compensate all harmonics. Therefore, it is expected that the proposed scheme will generate cleaner responses in applications of power electronic systems containing mainly odd harmonics. A key observation here is that, there exists an equivalent expression for the negative feedback repetitive scheme in the form of a bank of resonant Alters tuned at odd harmonics, therefore the repetitive scheme is in agreement with the well known internal model principle. It is shown that, the proposed controller has a fairly simple implementation. Experimental results in a 2 KVA prototype are provided to illustrate the merits of our solution.
AB - The paper presents a repetitive-based controller for a three-phase three-wire Distribution Static synchronous Compensator (D-Statcom) aimed to compensate reactive power and unbalanced harmonics in the general case of distorted and unbalanced source voltages and load currents. The repetitive scheme involves a negative feedback structure and is aimed to exclusively compensate odd harmonics, thus, reducing the possibility of reinjecting unnecessary distortion into the system. This is in contrast to other repetitive-based works that use traditional positive feedback structures aimed to compensate all harmonics. Therefore, it is expected that the proposed scheme will generate cleaner responses in applications of power electronic systems containing mainly odd harmonics. A key observation here is that, there exists an equivalent expression for the negative feedback repetitive scheme in the form of a bank of resonant Alters tuned at odd harmonics, therefore the repetitive scheme is in agreement with the well known internal model principle. It is shown that, the proposed controller has a fairly simple implementation. Experimental results in a 2 KVA prototype are provided to illustrate the merits of our solution.
KW - Active filters
KW - Adaptive control
KW - Dissipative systems
KW - Nonlinear systems
KW - Reactive power control
UR - http://www.scopus.com/inward/record.url?scp=53649111762&partnerID=8YFLogxK
U2 - 10.1109/ISIE.2006.295675
DO - 10.1109/ISIE.2006.295675
M3 - Conference contribution
AN - SCOPUS:53649111762
SN - 1424404975
SN - 9781424404971
T3 - IEEE International Symposium on Industrial Electronics
SP - 1388
EP - 1393
BT - International Symposium on Industrial Electronics 2006, ISIE 2006
T2 - International Symposium on Industrial Electronics 2006, ISIE 2006
Y2 - 9 July 2006 through 13 July 2006
ER -