Mandala, Bima Bakti (2021) Tuning Ziegler Nichols-CHR (Chien-Hrones Reswick) Untuk Sistem Pengendalian Electrical Conductivity Dengan Perubahan Set Point Pada Hidroponik DFT Pakcoy Dengan Penambahan Aerator. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Hidroponik adalah salah satu solusi bercocok tanam untuk masalah luas lahan yang sempit. Beberapa parameter perlu diperhatikan untuk mendapat hasil panen yang maksimal, salah satu yang paling berpengaruh adalah kadar EC dalam nutrisi yang dapat ditambah menggunakan pupuk ABmix. Pemberian ABmix harus disesuaikan berdasarkan maturitas tanaman. Pengendalian electrical conductivity (EC) pada plant hidroponik DFT tanaman pakcoy dengan penambahan aerator telah dirancang untuk dapat mengikuti perubahan setpoint (EC). Model plant hidroponik DFT dimodelkan dengan pendekatan model first order plus dead time (FOPDT) Ziegler Nichols serta Sundaresan dan Krishnaswamy dari respon perubahan EC terhadap masukan step larutan ABmix. Sistem pengendalian dengan pengendali PID dirancang lalu parameter kontrol (Kp, Ki, Kd) di-tuning menggunakan metode Ziegler Nichols Chien-Hrones Reswick (CHR) dan dibandingkan dengan metode Ziegler Nichols first method (ZN-1). Hasil pengujian close loop menunjukkan bahwa respon dinamik dari sistem pengendalian EC dengan menggunakan parameter kontrol PID dari hasil tuning ZN-CHR lebih baik daripada hasil tuning ZN-1. Kemudian, nilai parameter kontrol hasil tuning ZN-CHR ini dijadikan nilai awal untuk mendapatkan parameter PID yang lebih baik melalui trial & error. Penggunaan pengendali PID dengan Kp = 0.1414, Ki = 0.0030, dan Kd = 2.6232 pada plant hidroponik DFT menghasilkan pengendalian EC yang mampu mengikuti perubahan set point baik tanpa dan dengan adanya disturbance pada sistem. ======================================================================================================= Hydroponics is one of farming solutions for the problem of a narrow land area. Several parameters need to be considered in order to get maximum yields, one of the most influential is the EC level in nutrients which can be added using ABmix fertilizer. ABmix addition must be adjusted based on plant maturity Electrical conductivity (EC) control in the DFT hydroponic plant of the Pakcoy plant with the addition of an aerator has been designed to be able to keep up with changes in setpoint (EC). The DFT hydroponic plant is modeled using the first order plus dead time (FOPDT) model according to Ziegler-Nichols and Sundaresan and Krishnaswamy approach from the response of EC change to the input step of the ABmix solution. The control system with the PID controller was designed and the control parameters (Kp, Ki, Kd) were tuned using the Ziegler-Nichols Chien-Hrones Reswick (CHR) method and compared with the Ziegler Nichols first method (ZN-1). The close loop test results show that the dynamic response of the EC control system using the PID control parameter from the ZN-CHR tuning is better than that using PID control parameter from the ZN-1 tuning. Subsequently, the control parameters from the ZN-CHR tuning are used as the initial value to obtain a better PID parameter through trial & error. The utilization of a PID controller with Kp = 0.1414, Ki = 0.0030, and Kd = 2.6232 in the DFT hydroponic plant results in an EC control that is able to follow set point changes under both without and with disturbance to the system.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Hidroponik DFT, EC, PID, FOPDT Sundaresan dan Krishnaswamy, Tuning Ziegler Nichols Chien-Hrones Reswick. DFT Hydroponik, EC, PID, Sundaresan and Krishnaswamy FOPDT, Ziegler-Nichols Chien-Hrones Reswick tuning |
| Subjects: | Q Science > Q Science (General) > Q180.55.M38 Mathematical models 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: | Bima Bakti Mandala |
| Date Deposited: | 09 Mar 2021 00:54 |
| Last Modified: | 09 Mar 2021 00:54 |
| URI: | https://repository.its.ac.id/id/eprint/83813 |
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