WANG Yifei, ZHU Jing, LI Xia, et al. Composite Control Scheme of Grid-connecting Converter Based on PI and Repetitive Controllers[J]. High voltageapparatus, 2015, 51(7): 87-91.
WANG Yifei, ZHU Jing, LI Xia, et al. Composite Control Scheme of Grid-connecting Converter Based on PI and Repetitive Controllers[J]. High voltageapparatus, 2015, 51(7): 87-91. DOI: 10.13296/j.1001-1609.hva.2015.07.017.
A simplified design of taking a PI controller as the compensator of a repetitive controller is proposed for single-phase grid-connecting converter system. The repetitive controller can ensure the output accuracy when system is in steady state
but its dynamic response is not fast enough. To overcome this weakness
a composite control scheme based on PI and repetitive controllers is presented
which can ensure the steady-state output characteristics of the system
and improve its dynamic properties. Simulation verifies the correctness of the composite control scheme.