Multi-drive management system to mitigate voltage sags

Multi-drive systems are frequently used in many industry applications such as in paper, textile, and plastic winding process. Adjustable speed drives are very sensitive to power quality problems in particular to voltage sags, short-duration reductions in the rms voltage. This paper presents a multi-drive management strategy to mitigate voltage sags based on the self-kinetic process energy recovery. Simulation and experimental results are shown to demonstrate the efficiency of the proposition.