**7. Conclusions**

This paper proposed a deadbeat DSVM-MPC with a simplified neutral-point balancing method for enhancement of the output current quality in three-level grid-connected voltage source inverters. The DSVM-MPC method produces various virtual voltage vectors by subdividing the space vector diagram, and selects the optimal voltage vector that minimizes the error with respect to the reference current. To alleviate the computational burden, a deadbeat control was applied to restrict the optimal region of candidate voltage vectors. In addition, this work introduced simplified neutral-point capacitance voltage balancing using a modified DPWM method without a need for an extra cost function, thus reducing the total computation time. The reduction in the computation time may be advantageous for incorporating additional estimation or protection algorithms. The modified DPWM method had a higher efficiency than the conventional CPWM method, owing to the reduced number of switching operations.

**Author Contributions:** Supervision, K.-B.L.; writing—original draft, I.M.A.

**Funding:** This work was supported by "Human Resources Program in Energy Technology" of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea and National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT for First-Mover Program for Accelerating Disruptive Technology Development. (No. 20194030202370, NRF-2018M3C1B9088457).

**Conflicts of Interest:** The authors declare no conflict of interest.
