Multilevel inverter is required for applications that need high voltage and high current. The multilevel converter methods have special features like reduced THD, EMI problem, qualitative output waveform and a higher yield for a given quality of the output shaft. The best specialty of the multilevel inverter is the capability of minimizing voltage stress across every switch due to the use of multiple stages in the DC bus. The pulse width modulation (PWM) method requires a carrier wave and modulating wave to produce the modulation signals required for the desired output from a voltage source converter. Existing multilevel pulse width modulation strategies have no specific provisions to produce a qualitative output voltage waveform with elimination of low order harmonics in the spectrum profile, specifically at minimum switching stages. This paper provides methods of control and the most relevant modulation with a new database schema PWM reference for phase seven-stage cascade multilevel inverter using MATLAB/Simulink and compared the effectiveness of the projected system with the existingcontrol systems.