In modern times, new converter design is much essential to incorporate with unbalanced grid network. Proposed converter innovation Double Boost Modified Soft Switching Dual Controller design (DBM-SSDC) is designed with voltage controller. In this design combined with the power flow between the Grid and Distributing Generator (DG) unit. Power quality issues raised from the distribution unit. Because the unbalanced grid voltage. It effectively solved with the power flow from DBM-SSDC Unit. The current reference is generated to force into the grid with prevent the oscillating power during unbalanced condition (UC) without any disturbance. Particle Swarm Optimization (PSO) based fuzzy tuned controller is proposed to regulate the DC-link voltage in DBM-SSDC unit. In the event of unbalance, the line current magnitudes maximum values reached compare to the minor standards that is key drawback of predictable Dual Vector Current Control (DVCC). To overcome this effect, proposed DBM-SSDC line current limiter is the only solution for the parallel converter. The grid voltage/current reached maximum values under such turbulences were observed. By changing the current reference control in the recommended DBM-SSDC unit. In the proposed work, the parallel converter storage is tested under voltage disturbances. The oscillation of Volt Ampere Reactive (VAR) power due to voltage unbalance in a single three phase system was depicted in this work. Regulation voltage and power transfer ability are improved under stable voltage on the unbalanced side of the grid by the effectiveness of the proposed model. Overall, the proposed simulation results and hardware performance have been observed in the key performance indicators such as harmonics reduction, DC link voltage stability and power flow effectiveness.