Analisis Posisi Sensor TDS Pada Sistem Kendali Air Dan Nutrisi AB Mix

Madori, Madrofi (2024) Analisis Posisi Sensor TDS Pada Sistem Kendali Air Dan Nutrisi AB Mix. Sarjana (S1) thesis, Universitas Islam 45.

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Abstract

Water and ppm control systems have the advantage of controlling important variables such as nutrient concentration and water volume. The first Proportional, Integral, Derivative Control (PID) controls the volume of water in the system, while the second Proportional, Integral, Derivative Control (PID) controls the nutrient concentration of the AB mix. The first PID is responsible for monitoring and regulating the water volume in the hydroponic system. Through feedback from the flow meter sensor, the second PID, on the other hand, monitors and regulates the AB mix nutrient concentration in the solution. Feedback from the nutrient concentration sensor is used by the second PID to generate control signals that regulate the amount of nutrients added to the water-filled reservoir. This ensures that the nutrients provided to the plants are at appropriate and stable levels. The test results for the variable water volume system with Kp = 1, Ki = 0.000001, Kd = 0.00001 were obtained with a Steady State Error of 0.9% for an input volume value of 4.5 liters. Nutrient concentration variable with Setpoint Part Per Million (PPM) 800 as a reference, the final result is obtained by controlling the nutrient concentration variable with an Output Setpoint Part Per Million (PPM) value of 819, Rise time 25 seconds, Settling time 100 seconds, Peak time 83 seconds, and Steady state error 2.38%.

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