Maheswari, G.Manjunatha Sharma, K.M.Prabhakaran, P.2026-02-0620232023 7th International Conference on Computer Applications in Electrical Engineering-Recent Advances: Sustainable Transportation Systems, CERA 2023, 2023, Vol., , p. -https://doi.org/10.1109/CERA59325.2023.10455101https://idr.nitk.ac.in/handle/123456789/29278Integrating a multilevel inverter with the grid provides advantages in high-power and high-voltage applications, including reduced harmonic distortion without a transformer. This paper presents the implementation of Sorted stair-case modulation (SSCM) and Sorted Phase disposition (SPD) Pulse Width Modulation (PWM) techniques for a Grid-Tied Cascaded H-Bridge (CHB) multilevel inverter featuring single-stage power conversion. SSCM and SPD PWM techniques are used to track the MPPT of each PV panel under uniform and non-uniform irradiation conditions if the PV panels are connected to the inverter's input terminals. A centralized current controller has been designed for the Grid-tied multilevel inverter system. Furthermore, a simulation has been developed to compare the power quality of the grid current and voltage between SSCM and SPD-PWM. © 2023 IEEE.current controllerGrid-tied multi-level inverterSorted Phase disposition PWMSorted Stair-case modulation