Comparisons between the UPQC and its dual topology (iUPQC) in dynamic response and steady-state

In this paper the Unified Power Quality conditioner is studied with conventional operation mode (UPQC) and with its dual topology (iUPQC). The iUPQC is presented as solution to improve the dynamic response in power quality disturbance mitigation. Comparisons in steady-state and dynamic response are provided. Simulations and experimental results are shown to verify the iUPQC behavior for power quality safety and several load change issues.