Nowadays, in the current development progress, solar energy has shown great potential as a renewable energy source in electricity generation, and it is one of the important ones in electricity generation. The project will use three -phase DSTATCOM to help improve power quality in the distribution network to eliminate harmonic currents caused by nonlinear loads, new instruction methods are used and Radial Basis Function Neural Network (RBFNN) operating techniques are presented. evaluate the performance of the designed GCPV based DSTATCOM for power quality improvement in term of harmonic current elimination. The accuracy of the current harmonic current and the network operating compensation based on the inside of the direct control loop are strongly influenced by this control approach. this model will be designed and implemented using MATLAB/Simulink software. Simulations between before and after using static three - phase compensation distribution will be designed. The result to be obtained is the Total Harmonic Distortion (THD) value between two different simulations. Performance comparisons between simulations should be shown to eliminate harmonic currents according to IEEE 519: 2014 standards. the simulation result of THD for phase in line and load current after and before DSTATCOM controller. The value of THD will decide the value of frequency for three phase distribution networks connected with nonlinear load. Then, the waveform of THD were shown and the THD value were compared. The result showed that the proposed system, a GCPV-DSTATCOM-based RBFNN control algorithm, can reduce the harmonics at line current. RBFNN based DSTATCOM control
algorithm was successfully implemented for harmonic elimination. DSTATCOM based control algorithm can regulate voltage at the point of common coupling (PCC) for the line current at PCC in the distribution system. The DSTATCOM control algorithm is discovered to efficiently retrieve the fundamental weight from distorted load currents to generate the reference signal for DSTATCOM.