Flow-rate Feeder Control Design With PI-PI Cascade Controller on Biomass Power Plant

The goal of gasification-based biomass power plants in this research is to be able to produce 5-10 KW of electricity through the thermal energy conversion process. Syngas, a byproduct of the burning of biomass, is created during the gasification process and may be utilized to power generators. The gasification process will diminish biomass, therefore if it reaches a particular level, it has to be frequently supplied to the feeder. Uncontrolled feeder transport capacity will result in the biomass that feeds the gasifier exceeding or falling short of the need, causing fluctuations in the amount of syngas generated. Due to this, the PI-PI cascade controller was designed to regulate biomass transport capacity. From the design of the PI-PI Cascade control system, the parameters for the primary loop controller Kp = 38.9; Ki = 0.81, and the secondary loop Kp = 3.5; Ki = 5. The results of the control design obtained time constant (ti) 0.0101 seconds; rise time(tr) for tr 10% at 0.014 seconds and tr 90% at 0.674 seconds; settling time(ts) of the response signal with Ts 0.05% at 9.5 seconds; delay time (td) at 0.065 seconds and if a disturbance is given when the condition is steady, it will return to the initial condition at 3.21 seconds after the disturbance is given.