* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Novel Three Phase Multi-Level Inverter Topology with Symmetrical DC-Voltage Sources Abstract: In this paper, a novel three phase modular multilevel inverter (MMLI) is proposed. The proposed inverter consists of primary cell and repetitive modular cells which are connected in series arrangement with the primary cell. Therefore, the proposed topology is able to get more output voltages levels number by adding extra modular cells. Both the sinusoidal pulse width modulation (SPWM) and staircases modulation are effectively executed. The proposed inverter is distinguished by several advantages such as: reduction in the number of semiconductor power switches, reduced Dc-voltage sources count, high utilization factor of the used Dcvoltage sources, and the control execution simplicity. Accordingly, the installation cost and size are reduced. It is simulated using MATLAB software package-tool. In addition, a prototype is developed and examined, to verify both control techniques and performance of the topology. Moreover, experimental results are provided to authenticate the simulation results and it show high similarity with it. Existing system: One of the leading advances in the RES management systems is the enhancement in power converters, which have the main role to convert the raw generated energy to both loads and utility grid. Accordingly, the conventional interfacing converters as DC-AC inverters, DC-DC converters topologies …etc. are replaced by new sophisticated topologies such as multi-level inverters (MLIs) or single-stage buckboost inverters like quasi-Z-source inverters (QZSIs). Their target is to increase system reliability, efficiency, power-transfer, life time, and in addition to reduce overall system cost and size. Proposed system: This paper introduces a new circuit with the features of reduced components count compared with the conventional and the addressed MLIs topologies in the literature with keeping the same pole voltage levels number. Circuit diagram: Advantages: The proposed inverter is distinguished by several advantages such as: reduction in the number of semiconductor power switches, reduced Dc-voltage sources count, high utilization factor of the used Dc-voltage sources, and the control execution simplicity. Reference:  A. Salem, E. M. Ahmed, M. Orabi, and A. B. Abdelghani, “Novel threephase multilevel voltage source inverter with reduced no. of switches,” In Proc. International Renewable Energy Congress, pp. 1-5, Mar. 2014.  S. Debnath, Q. Jiangchao, B. Bahrani, M. Saeedifard, and P. Barbosa, “Operation, Control, and Applications of the Modular Multilevel Converter: A Review,” IEEE Trans. Power Electron., vol. 30, no. 1, pp. 37-53, Jan. 2015.  A. Nami, J. Liang, F. Dijkhuizen, and G. D. Demetriades, “Modular Multilevel Converters for HVDC Applications: Review on Converter Cells and Functionalities,” IEEE Trans. Power Electron. vol. 30, no. 1, pp. 18-36, Jan. 2015.  A. Salem, E. M. Ahmed, M. Ahmed, M. Orabi, and A. B. Abdelghani, “Reduced Switches Based Three-Phase Multi-Level Inverter for Grid Integration,” In Proc. International Renewable Energy Congress, pp. 1-6, Mar. 2015.