The stator frame is the backbone of pump storage hydropower (PSH), and the hydrogenerator supports the hydropower generating system composed of the stator winding (copper bar) and stator core (steel lamination sheet) and hydraulic load from the turbine. In recent developments, researchers have made tremendous developments in improvising the stator frame and structural design developments, but most of the development has been in the prediction of electromagnetic vibration and its influence on structure. The research work provides in-depth knowledge and the development of a new stator frame design and analysis (FEA) to withstand the electromagnetic failure torque and thermal load from the stator. In addition, the optimized design of the stator frame structure minimizes the stator buckling effect and bending influence due to thermal load and airgap eccentricity, which leads to heavy tangential and radial stress. The developed stator frame serves multiple objectives. Stiff enough to withstand radial stress similar to a radial arm type stator frame, and the lower bottom of the structure is designed in an oblique shape that is flexible to avoid bending and twisting effects like an oblique arm type stator frame. Finally, recent developments and improvements are discussed as important criteria in the design and optimization of hydropower applications. To validate the newly developed stator frame, we have done a comparative study of research work, experimental reports, field data, and IEEE guidelines, comparing the finite element analysis of existing work. Finally, it reduces harmonic resonance and vibration.