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This paper proposes a new double mover configuration of a linear switched reluctance motor (LSRM). The proposed design is established for optimization of the motional forces and to ensure a high-grade electromechanical energy conversion process. The major drawback of the traditional linear machine is that its force densities within and throughout its area is produced in its radial direction of the yoke and does not contribute to its motion or twisting force of the rotor. If these normal forces happen to be in the direction of motion, a larger motional force profile for SRM is yielded. Based on these guidelines, a new LSRM is developed. In order to compare the energy conversion efficiency of LSRM with that of the conventional SRM, a finite element model is constructed. The proposed system is simulated using the FEM software and tested under four conditions. Further, an experimental prototype of the proposed machine is also developed and tested in the laboratory. The results obtained from the prototype indicate that the proposed geometry offers superior performance in terms of high-power density and higher percentage of the national forces. [ABSTRACT FROM AUTHOR]

Summary: This study aims to propose a novel effective modular multilevel inverter (MMI) with improved performance parameters. The improved performance parameters are switch reduction, harmonic reduction, and grid synchronization. The reductive design of MMI includes three bidirectional switches and eight unilateral switches to generate a symmetrical nine‐level output, while the same configuration can create a 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, and 31‐level output with asymmetric DC sources. The developed structure requires H‐bride for the generation of positive and negative levels. Reduction in switch count reduces the losses of the MMI and increases the efficiency of the MMI. The selective harmonic elimination technique gives pulses to the proposed design and for the computation of switching angles, Harris hawk's optimization (HHO) is used. Moreover, as an application point of view, the proposed photovoltaic (PV) fed MMI is connected to the grid. A closed‐loop control system is implemented for the PV fed MMI in which the gains of the PI controllers are tuned using the particle swarm optimization, firefly, and HHO‐based controller. The proposed system is simulated and experimentally validated on a laboratory prototype of PV (1 kWp) grid‐connected MMI. The performance of the proposed structure under steady‐state and dynamic conditions are investigated using simulation and experimental setup. [ABSTRACT FROM AUTHOR]