Diniyah, Fitriani (2021) Sistem Pengendalian Electrical Conductivity dengan Perubahan Setpoint Menggunakan Tuning Ziegler-Nichols Chien-Hrones-Reswick (CHR) Pada Hidroponik DFT Pakcoy. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Hidroponik adalah solusi pertanian dengan banyak keunggulan, salah satunya lebih mudah dilaksanakan dan hasil panen juga lebih sehat. Tanaman hidroponik membutuhkan nilai electrical conductivity (EC) yang sesuai berdasarkan pemberian larutan nutrisi guna menunjang pertumbuhan tanaman hidroponik yang optimal. Fokus penelitian ini adalah untuk merancang sistem pengendalian untuk menjaga agar kadar EC terjaga. Pada penelitian tugas akhir ini, plant hidroponik DFT dimodelkan dengan menggunakan metode first order plus dead time (FOPDT) dan tuning kontroler yang digunakan adalah Ziegler-Nichols First Method dan Ziegler-Nichols Chien-Hrones-Reswick (CHR). Nilai EC dari larutan nutrisi yang tidak dikontrol terus menurun akibat disturbance. Sistem pengendalian EC yang telah dirancang dengan kontroler PID mampu mempertahankan nilai EC pada setpoint yang diberikan dan mengatasi penurunan EC yang disebabkan oleh disturbance, serta dapat menyesuaikan dengan perubahan setpoint yang diberikan. Hasil simulasi menunjukkan bahwa parameter kontroler PID Trial dengan Kp=0,01; Ki=0,003; Kd=0,898 menghasilkan karakteristik respon dinamik yang terbaik, yaitu settling time sebesar 1332,9 detik dan rise time sebesar 305,526 detik, serta memiliki steady-state error 0,01%.
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Hydroponics is an agricultural solution with many advantages, one of them is easier to implement and healthier harvests. In order to support optimal hydroponic plant growth, an appropriate electrical conductivity (EC) value based on the provision of nutrients solutions is needed. The focus of this final project research is to design a control system so that the EC level are maintained. In this final project research, the plant is modelled using the first order plus dead time (FOPDT) method and the controller tuning used is the Ziegler-Nichols First Method and Ziegler-Nichols Chien-Hrones-Reswick (CHR). The EC value of the uncontrolled nutrient solution continued to decrease due to disturbance. The control system that has been designed with a PID controller is able to maintained the EC value at a given setpoint and overcome the EC drop caused by disturbance, also able to adjusted to changes in a given setpoint. The simulation results show that the PID Trial controller parameters with Kp = 0.01; Ki = 0.003; Kd = 0.898 were obtained producez the best dynamic response characteristics, with a settling time of 1332.9 seconds and a rise time of 305.526 seconds, as well as having a steady-state error of 0.01%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Hydroponics, Hidroponik, EC, FOPDT, Kontroler PID, PID Controller, Tuning Ziegler-Nichols, Ziegler-Nichols Tuning |
| Subjects: | Q Science > Q Science (General) > Q180.55.M38 Mathematical models Q Science > QC Physics > QC100.5 Measuring instruments (General) Q Science > QC Physics > QC610.3 Electric conductivity T Technology > T Technology (General) > T57.62 Simulation T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Fitriani Diniyah |
| Date Deposited: | 09 Mar 2021 11:56 |
| Last Modified: | 09 Mar 2021 11:56 |
| URI: | http://repository.its.ac.id/id/eprint/83885 |
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