CUK Converter Using FLC to Manage Power Consumption from PV Directly

In this modern era, almost all people need electricity. Source of electrical energy still using fossil fuels that cannot be renewed. So, to replace fossil fuels it can be used alternative energy such as solar panels. The output power of the solar panels depends on the intensity of the solar radiation received by PV and the temperature of PV. This causes voltage fluctuations so the output power is unstable. If PV is used directly to DC load, the power consumption to DC load is not optimal because the output power generated by PV is unstable. To overcome this problem, a converter is needed as a voltage stabilizer so that the load consumption can be regulated properly. In this research, it uses a Cuk converter and does not need a battery because it is directly used for DC loads so it can save investment. Cuk converter has the same character as a buck-boost converter. The output of the system are still unstable and good controls are needed to make the system stable. In this research, it is used fuzzy control to make the system output stable. The average error after the converter being controlled is 0.25%. And the average level of accuracy with the setting point is 99.459% with the highest accuracy is 99.625%.