Power Quality Enhancement in Wind-Hydro Based Hybrid Renewable Energy System by Interlocking of UPQC

In this article, the quality of electrical power is monitored in a hybrid Renewable Distributed Generation System (h-RDGS). Moreover, wind and hydro-electric based h-RDGS are used for interlink of variable non-linear load. Power quality (PQ) of the proposed wind-hydro system is degraded due to its linkage with non-linear load. To overcome this issue, Custom Power Devices (CPDs) are used. This article includes the improvement of Total Harmonic Distortion (THD) in voltage and current waveform in h-RDGS. And that is done with the help of CPD. Furthermore, the voltage stability and transient stability during fault conditions may also enhance by the same device. In wind-hydro-electric system, the input energies are variable and the output non-linear load is also fluctuating continuously. Hence, the entire proposed h-RDGS is the same as the actual working system used in micro-grid. The MATLAB/SIMULINK software is preferred in the proposed h-RDGS and the modeling part of this system is also included to improve the transparences of the work.