Analisa Kesesuaian Model Simulasi dari Simulator PyBaMM dengan Data Eksperimen pada Battery Lithium-ion
DOI:
https://doi.org/10.61098/jkst.v4i2.320Kata Kunci:
Baterai lithium-ion adalah perangkat penyimpanan energi isi ulang yang menyimpan dan melepaskan energi dengan memindahkan ion lithium antara dua elektroda dengan polaritas berlawanan melalui elektrolit. Baterai lithium-ion dengan kepadatan energi tinggi telah menjadi subjek penelitian, yang mengarah pada pengembangan berbagai sistem baterai lithium-ion, termasuk sistem pemodelan baterai. PyBaMM (Python Battery Mathematical Modeling) adalah perangkat lunak yang digunakan untuk mensimulasikan model baterai dengan cepat dan fleksibel. Pengembangan pemodelan baterai elektrokimia menghadapi beberapa tantangan, salah satunya adalah kompleksitas sistem baterai elektrokimia yang melibatkan berbagai reaksi kimia dan proses fisik. Oleh karena itu, pemodelan baterai yang akurat dan valid diperlukan untuk memprediksi perilaku baterai dalam berbagai kondisi operasional. Tesis ini bertujuan untuk menganalisis kompatibilitas model simulasi baterai dalam simulator PyBaMM dengan data eksperimental dari baterai lithium-ion. Tujuannya adalah untuk mendapatkan pemahaman yang lebih baik tentang seberapa baik model matematika dalam PyBaMM dapat mewakili perilaku aktual baterai lithium-ion. Analisis kompatibilitas antara model dan data eksperimental dilakukan menggunakan Uji Kecocokan dengan metode uji Chi-Square (χ2). Hasil simulasi yang diperoleh dalam penelitian ini terdiri dari grafik tegangan versus waktu pengosongan baterai lithium-ion yang membandingkan model simulator PyBaMM dengan data eksperimental. Tidak ada perbedaan signifikan antara model baterai lithium-ion yang dihasilkan dari simulasi PyBaMM dan data eksperimental. Kompatibilitas model baterai lithium-ion yang dihasilkan dari simulasi PyBaMM dengan data eksperimental memiliki tingkat akurasi 97% - 99%.Abstrak
Lithium-ion batteries are rechargeable energy storage devices that store and release energy by shuttling lithium ions between two electrodes with opposite polarities through an electrolyte. High-energy density lithium-ion batteries have been the subject of research, leading to the development of various lithium-ion battery systems, including battery modeling systems. PyBaMM (Python Battery Mathematical Modeling) is a software tool used for quickly and flexibly simulating battery models. The development of electrochemical battery modeling faces several challenges, with one of them being the complexity of the electrochemical battery system involving various chemical reactions and physical processes. Therefore, accurate and valid battery modeling is necessary to predict battery behavior under various operational conditions. This thesis aims to analyze the compatibility of battery simulation models within the PyBaMM simulator with experimental data from lithium-ion batteries. The objective is to gain a better understanding of how well the mathematical models in PyBaMM can represent the actual behavior of lithium-ion batteries. The compatibility analysis between the models and experimental data is performed using the Goodness of Fit Test with the Chi-Square (χ2) test method. The simulation result obtained in this research consists of voltage versus lithium-ion battery discharge time graphs that compare the PyBaMM simulator models with experimental data. There is no significant difference between the lithium-ion battery models generated from PyBaMM simulations and experimental data. The compatibility of the lithium-ion battery models produces from PyBaMM simulations with experimental data has an accuracy level of 97% - 99%.
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