Stability Performance of Hybrid Renewable Energy Power System Using Constant Voltage Stabilizer

The best renewable energy connected system has to be efficient and has a good stability in terms of voltage and power. The stability also can be the aspect to determine in terms of oscillation and efficiency. Both standalone photovoltaic and standalone wind turbine has its intermittency in its input, but by using both system in a coupled configuration as hybrid renewable energy electrical source, there is a new constraint in terms of voltage stability, power stability, and balance in both systems. So, it is necessary to resolve this problem in order to get the reliable and resilient system for remote areas electricity flow. The purpose of this paper is to provide the performance results for a constant voltage stabilizer that connected in the hybrid renewable energy system, the novelty is the usability of the variability from the input, renewable energy intermittency. From the results, it is obtained that for 2 kVA for existing hybrid system capacity, the optimal voltage control using constant voltage stabilizer has the efficiency of 91,788%. From the results, it is also known that after CVS, the fluctuation of the power is decreased from 13% to 6%, the stability had been increased swiftly using CVS because after the usage of the CVS, the fluctuation is going under ± 10% standard. Compared to the maximum capacity, the system with stabilizer performance has its minimum power efficiency at 55,994% and maximum power efficiency at 77,411%. It can be concluded that by using CVS model, the voltage responses would be better in terms of oscillation limit than the pre-stabilized one, and the power responses also following the voltage responses due to the same stabilization characteristics.