Christine Aprina, Miranda (2021) Rancang Bangun Hydroponic Pod Grow Light Bertenaga Surya dengan MPPT Bebasis Arduino UNO. Sarjana thesis, Universitas Brawijaya.
Abstract
Metode budidaya hortikultura semakin banyak dikembangkan guna menjawab permasalahan lahan, iklim, dan urbanisasi dan permintaan pangan sayuran yang meningkat di Indonesia, salah satunya yaitu dengan menerapkan sistem indoor vertical hydroponic. Metode ini memerlukan pencahayaan buatan menggunakan LED strip grow light, khususnya dengan rasio spektrum merah:biru 4:1 bagi tanaman bayam. Untuk mengurangi jejak karbon dari penggunaan listrik sekaligus memanfaatkan potensi irradiasi surya yang cederung tinggi di Indonesia, panel surya sebesar 30 Wp diterapkan sebagai pembangkit listrik off-grid produk ini. Namun, tidak seluruh radiasi surya diserap oleh sel surya sehingga MPPT P&O diimplementasikan guna mengoptimalisasikan daya keluaran sebagai nilai masukan LED dan baterai. Pengujian dilakukan di Universitas Brawijaya, Malang dengan letak geografis 7.95o LS. Selain itu, irradiasi dan suhu lingkungan yang diterapkan pada pengujian yaitu mengikuti STC sebesar 1000 W/m2 dan 25oC. Hasil perhitungan dari sistem ini adalah daya yang dibangkitkan setelah sistem dipasang MPPT dan pengukuran pada tanaman bayam setelah empat minggu penanaman. Kata kunci—hidroponik, grow light, MPPT, panel surya. Abstract— Horticultural cultivation methods are increasingly being developed to address land, climate, and urbanization problems and the increasing demand for vegetable food in Indonesia, one of which is by implementing an indoor vertical hydroponic system. This method requires artificial lighting using LED strip grow light, specifically with a red:blue spectrum ratio of 4:1 for spinach plants. To reduce the carbon footprint of electricity use while taking advantage of the potential of solar irradiation which tends to be high in Indonesia, a 30 Wp solar panel is applied as an off-grid power plant for this product. However, not all solar radiation is absorbed by solar cells, so MPPT P&O is implemented in order to optimize the output power as the LED and battery input values. The test was carried out at Brawijaya University, Malang with a geographical location of 7.95o South Latitude. In addition, the irradiation and ambient temperature applied to the test followed the STC of 1000 W/m2 and 25oC. The calculation results from this system are the power generated after the MPPT system is installed and measurements on spinach plants after four weeks of planting. Index Terms—hydroponics, grow light, MPPT, solar panels.
English Abstract
Miranda Christine Aprina, Department of Electrical Engineering, Faculty of Engineering, University of Brawijaya, July 2021, Design And Construction of Solar Powered Hydroponic Pod Grow Light System With MPPT Based On Arduino Uno, Academic Supervisor: Lunde Ardhenta and Unggul Wibawa. The increasing demand and supply of vegetables in Indonesia coincided with the growing intensity of business competition in the horticulture sector, which triggered the issuance of a national strategy by the government that supports the community to continue to apply technology to the country's agricultural industry. Smart farming technology is integrated into conventional farming systems so that the variables that become plant growth factors can be controlled. It is necessary to have a smart farming-based tool that is able to control lighting variables for indoor plant cultivation, so that environmental conditions become more stable. The tool uses an LED grow light with a red and blue spectrum. In addition, the technology must have ecological value by utilizing renewable energy off-grid. The design of the solar powered hydroponic pod grow light supply system begins with determining the load, namely the LED strip grow light with an R:B ratio of 4:1 for Amaranthus sp. As an effort to optimize the output voltage and power on the solar panel, a DC-DC buck converter was designed with a controller that was given the MPPT P&O algorithm. Determination of the buck converter component is done by calculating the duty cycle value for PWM switching, as well as ripple analysis to find the size of the inductor and capacitor. To supply the needs of the load at night, a 12 V VRLA battery was applied. The battery capacity is calculated based on the DoD VRLA limit as well as the battery autonomy time in the Ecuadorian line. Then, two current sensors and voltage sensors are installed to read the current and voltage values both before and after entering the converter. System testing is done by testing the components individually and the system as a whole. Individually, the components of the LCD, sensors, PV, battery and buck converter were tested to determine the performance and the magnitude of the error in the output. Overall, the system was tested twice. The first is at night without an energy supply from solar panels. The second is testing the system with solar panels. The test is carried out by measuring the voltage and current values every hour. Finally, the effect of LED grow light was tested on the growth of spinach plants for three weeks. The parts of the spinach plant that were observed for growth were the longest leaves, the widest leaves and the tallest stems. Based on the test results, the buck converter with a duty cycle of 65% can reduce the voltage from the solar panel to 11.5 V. An error of 4.16% occurs in the calculation of the theoretical working voltage of the system, which is 12 V. The current sensor has a reading error of 5, 98% and the voltage sensor is 2.57%. In addition, with an autonomous time of 2 days, a battery with a capacity of 26 Ah is required. During 8 hours of battery testing, there was an increase in the voltage of 3.01 V. On the other hand, there was a voltage drop of 3.95 V when the LED took supply from the battery at night for 6 hours. In the overall system test, there was a decrease in battery voltage of 3.95 V for 6 hours of testing. The solar panels are not able to capture enough voltage to supply the load starting at 17.00 WIB, so at that time, the LEDs rely on batteries as a source of lighting. Keywords— hydroponic, grow light, MPPT, solar panels.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 621.381 |
| Uncontrolled Keywords: | Kata Kunci— hidroponik, grow light, MPPT, panel surya.-- hydroponic, grow light, MPPT, solar panels. |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.38 Electronics, communications engineering > 621.381 Electronics |
| Depositing User: | Unnamed user with email gaby |
| Date Deposited: | 21 Oct 2021 02:00 |
| Last Modified: | 10 Oct 2024 02:48 |
| URI: | http://repository.ub.ac.id/id/eprint/184488 |
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