Design and Implementation Fuzzy Logic Control of Battery Discharging on Wind Turbine Power System based Cyber Physics System

Electric power plays a very important role in people's lives and in the development of various sectors of the economy. Modern economies are very dependent on electrical energy as the main driving force for activities. This has led to an increase in the number and capacity of power plants. Solar power is a new renewable energy generator that is developed to increase the capacity of electricity generation in Indonesia. The instability of solar irradiance means that the resulting solar power generation must be stored in batteries before being transferred to the load. There is an inverter in the battery discharging system which functions to change the amount of DC to AC. Changes in battery capacity due to the use of loads result in an unstable inverter output voltage, so a control system is required. The battery discharging system also needs to be controlled to maintain battery performance. This study aims to design and implement fuzzy logic control (FLC) for controlling the inverter output voltage and a cyber physics system (CPS) based battery discharging system. Input FLC is in the form of error and delta error and the output is in the form of pulse width modulation (PWM). The control of battery discharging uses two batteries which can work automatically and manually via the CPS connected command. The response of the inverter output voltage control system has a rise time of 0.38 minutes, a maximum overshoot of 4.54 percent, and a steady-state error value of 0.1817 percent. Battery discharging control can work properly according to the built control mechanism. The uncertainty of UA1 for the inverter output voltage is 0.434, the output current is 0.002, and the output power is 0.408 Watt.