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This paper proposes advanced speed control for a five-leg voltage source inverter (FLVSI) that drives the dual three-phase induction

motor system used in industrial manufacturing processes. The advanced speed control method consists of two controllers: 1) The

first is a slip controller that satisfies the application requirement, i.e., to control the mechanical speed of two motors equally

regardless of the load condition. 2) The second is an angle controller that satisfies the FLVSI requirement, i.e., to control the phase

angle difference between the two motors for minimizing the common leg current because the common leg current can be twice

higher than other leg's current depending on the operation condition of the dual motor. Stability analysis of the two controllers

under advanced speed control is implemented, and the whole performance of the advanced speed control for the FLVSI-fed dual-

motor drive system is shown to identify its feasibility through the experimental results.