A novel open winding topology with common DC bus was applied to hybrid permanent magnet material brushless motor for promoting power density and elevating torque output capacity. However, in this structure, zerosequence current would be produced in the winding, which would reduce the efficiency and operation stability. In order to solve this problem, a decoupled space vector pulse width modulation strategy was proposed, which could improved the voltage utilization effectively. In addition, for eliminating the 3rd and 9th current harmonics caused by common voltage and zerosequence components in backEMF and simplifying the control system, a closedloop system with repetitive controller in zerosequence circuit was formed. The proposed control methods were illustrated by the experimental results.