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Advanced Control for Quadruple Tank Process Kasiyanto, Iput; Firdaus, Himma; Lailiyah, Qudsiyyatul; Kusnandar, Nanang; Supono, Ihsan
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol. 10 No. 1 (2024): March
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jiteki.v10i1.27124

Abstract

In the realm of control systems, the last three decades have witnessed significant advancements in model predictive control (MPC), an advanced technique renowned for its ability to optimize processes with constraints, handle multivariate systems, and incorporate future references when feasible. This paper introduces an innovative offset-free MPC approach tailored for the control of a complex nonlinear system—the quadruple tank process (QTP). The QTP, known for its deceptively simple yet challenging multivariate behavior, serves as an ideal benchmark for evaluating the efficacy of the proposed algorithm. In this work, we rigorously compare the performance of the PID and MPC controller when applied to both linear and nonlinear models of the QTP. Notably, our research sheds light on the advantages of MPC, particularly when confronted with constant disturbances. Our novel algorithm demonstrates exceptional capabilities, ensuring error-free tracking even in the presence of persistent load disturbances for both linear and nonlinear QTP models. Compared to the PID control, the proposed method can reduce the overall set point tracking error up to 32.1%, 27.6%, and 38.54% using the performance indices ISE, ITAE, and IAE, respectively, for the linear case. Furthermore, for the nonlinear case, the overall set point tracking error reduction is up to 93.4%, 94.9%, and 91.5%. This work contributes to bridging the gap in effective control strategies for nonlinear systems like the QTP, highlighting the potential of offset-free MPC to enhance control and stability in a challenging process industry involving automatic liquid level control.
Perancangan Harga Pokok Produksi UMKM Kacang Bawang Metode Full Costing Berbasis Excel Putri, Dyah Puspitasari Sunaryo; Subarman, Karya; Supono, Ihsan
BRILIANT: Jurnal Riset dan Konseptual Vol 8 No 1 (2023): Volume 8 Nomor 1, Februari 2023
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v8i1.1108

Abstract

Penelitian ini bertujuan membuat rancangan perhitungan harga pokok produksi berbasis excel pada obyek penelitian yaitu UMKM Ajiebb Boga Raya dengan metode full costing. Dengan pendekatan penelitian kualitatif dengan melakukan perancangan sistem perhitungan harga pokok produksi menggunakan excel adapun tahapan penelitian: 1) Merancang laporan harga pokok produksi berbasis excel, 2) Melakukan perbandingan hasil rancangan dengan yang digunakan obyek penelitian dan 3) Melakukan analisis hasil dari perbandingan. Hasil penelitian adalah perancangan laporan harga pokok produksi metode full costing dengan perhitungan yang sistematis dan lebih informatif, dari 4 penyajian yang dimiliki UMKM bertambah menjadi 13 penyajian laporan.