<p>Basically, the robust control approaches do not tackle the uncertainties directly, and hence, introducing a new robust control is crucially necessary to attenuate the lumped uncertainties in the industrial systems. This paper presents a new robust control method for the three-phase voltage source rectifier (VSR) based on error dynamics. The design of control commands is performed by considering the first-order error dynamics so that the tracking control of the inductor current at any phase is manipulated. By substituting the state equations in the error dynamics, the destructive effects of lumped uncertainties can be attenuated in the output responses of the VSR. This action is achieved by choosing the optimum values defined in the error dynamics. By defining several terms in the control commands, the first-order error dynamics are converted to second-order error dynamics. Finally, the stability of the closed-loop system is guaranteed by the tunning parameters defined in the control commands. In this work, the grid current harmonics are also decreased using the proposed robust control method. Some numerical simulations are performed using MATLAB software to evaluate the proposed approach.</p>