Adjustable speed drives for three-phase induction motors and permanent magnet synchronous motors necessitate varying both voltage and frequency. Achieving this requirement involves employing a three-phase voltage source inverter. There are two approaches to generate the inverter's output AC voltage with variable magnitude and frequency. The first method involves adjusting the input DC voltage of the inverter while maintaining a constant inverter gain. On the flip side, the second approach comes into play when the direct current input voltage of the inverter remains constant. This setup permits the manipulation of the output voltage's amplitude and frequency by adjusting the gain of the inverter. Typically, the second method is preferred due to its cost-effectiveness. Various algorithms exist for controlling the output voltage of the voltage source inverter (VSI), but they all tend to produce unwanted harmonics aside from the desired fundamental frequency. To mitigate low-order output voltage harmonics, space vector pulse width modulation (SVPWM) is employed. SVPWM is a sophisticated and highly effective technique compared to other PWM methods such as sinusoidal, trapezoidal, harmonic injected, delta, and phase-shifted PWM. It efficiently generates fundamental inverter output voltage sine waves, and helps reduce total harmonic distortion (THD) and dominant harmonics. This paper utilizes sector utilization in each switching period to implement the SVPWM algorithm strategy for generating adjustable frequency and amplitude output voltage in voltage source inverters. The SVPWM techniques have been simulated using the Matlab/Simulink environment.