The stability of power system voltage for nonlinear loads are maintained by the DSTATCOM which provides efficieant and reactive power.These nonlinear loads causes to increase the reactive power and losses, also these nonlinear loads affects the power quality of the distribution. Through the approach of trial and error method, the PI controller can attain steady state of voltage. Even though, the existing work can achieve via trial and error approach and also with the effective performance. The optimal performance of the operating point may not show the effectiveness at varied operating points. In this proposed technique, a novel control technique based on PI controller is implemented. If any distortion occurs, it can achieve by its own to solve the problem of control gains. So that the performance which always relates a desired response. Hence the adaptation is self-controlled, which, provides automatic configuration capability for DSTATCOM operation. From source current, the reference current can be generated by making use of SRF theory. In simulation test, the PI control reveals compatible quality under different working situations, like initial control gains, load levels, and variation in transmission network, consecutive disturbances, and severe disturbance. Here in DSTATCOM three phase voltage source inverter is utilized as a voltage source converter. This project is implemented in Matlab simulation. © 2021 Elsevier B.V., All rights reserved.