Parallel connected multi-modular (M-M) singlephase UPS inverter system is an attractive choice for a reliable and scalable power delivery for critical loads. However, a proper current sharing control technique is required to avoid the inter-modular circulating (IMC) currents without use of any extra power circuit components. The output current of an UPS module is used as load disturbance compensation feedback to reduce output voltage distortion in multi-loop (ML) control of single inverter module structure. This paper presents output Average Current Feed-Forward (ACFF) control scheme for both voltage regulation and equal current sharing in parallel inverter modules. This greatly simplifies the conventional current sharing control. The obtained results in MATLAB environment in Discrete Time Frame (DTF) using Simulink and Sim Power System (SPS) toolboxes for bimodular and tri-modular UPS inverters system illustrate the effectiveness of the proposed control scheme.