Power Management Control Pada Sistem Hibrida Pv-Genset Menggunakan Zelio Logic Smart Relay

Anas, Mochamad Azwar (2014) Power Management Control Pada Sistem Hibrida Pv-Genset Menggunakan Zelio Logic Smart Relay. Sarjana thesis, Universitas Brawijaya.

Abstract

Energi merupakan salah satu masalah utama dalam pertumbuhan dan perkembangan suatu negara sehingga diperlukan suatu inovasi energi alternatif yang dapat dimanfaatkan secara berkelanjutan, salah satunya yakni energi matahari. Indonesia merupakan salah satu negara yang beriklim tropis sehingga berpotensi besar dalam pemanfaatan energi matahari dengan menggunakan sistem photovoltaic (PV) yang terdiri dari panel surya, baterai dan inverter. Teknologi photovoltaic yang dipadukan dengan diesel-generator set (genset) atau biasa disebut dengan PV-Genset hybrid system berkembang dengan pesat karena dapat mengurangi ketergantungan energi fosil dan dapat menjaga kestabilan suplai listrik. Namun, demand listrik dan intensitas matahari yang berubah-ubah mengakibatkan kinerja sistem hibrida PV-Genset tidak optimal. Oleh karena itu, diperlukan adanya power management control untuk memenuhi kebutuhan beban listrik yang optimal. Penelitian ini bertujuan untuk mendapatkan rancangan sistem hibrida PV-Genset menggunakan Zelio Logic Smart Relay meliputi: mendapatkan (1) parameter tegangan, arus, dan daya solar cell; (2) kinerja sensor arus beban; (3) kinerja rangkaian otomatisasi genset dan nilai Specific Fuel Consumption (SFC) yang optimal; (4) kinerja Zelio dalam pensaklaran sistem; (5) profil beban (besarnya beban dasar dan beban puncak) yang sesuai dengan ketersediaan panel surya dan baterai dalam skala laboratorium. Pada penelitian ini, power management control menggunakan Zelio Logic Smart Relay dirancang sebagai sarana untuk melakukan peralihan energi dari baterai ke genset dan sebaliknya secara otomatis. Penelitian ini menguraikan tentang perancangan sistem hibrida dalam skala laboratorium yang meliputi perancangan perangkat keras, yakni sensor arus, rangkaian pembagi tegangan, dan otomatisasi genset, serta perancangan perangkat lunak menggunakan software Zelio Soft 2. Pengujian dilakukan pada masing-masing blok rangkaian meliputi pengujian parameter solar cell, rangkaian sensor arus, rangkaian pembagi tegangan, otomatisasi dan karakteristik SFC genset, serta simulasi program dan pensaklaran sistem menggunakan relai. Berdasarkan hasil pengujian, nilai tegangan dan daya keluaran solar cell akan meningkat seiring meningkatnya intensitas matahari, sedangkan arusnya akan semakin menurun. Selain itu, terdapat perbedaan tegangan dan arus berturut-turut sebesar 2,13 V dan 1,01 A dari hasil pengukuran. Sensor arus yang digunakan pada sistem mampu mendeteksi perubahan arus yang mengalir ke beban secara linier dengan memberikan respon berupa tegangan keluaran yang menjadi masukan Zelio. Rangkaian otomatisasi genset dapat berfungsi dengan baik dan nilai optimum SFC pada genset merk Starke 2,8 kW 220 V 50 Hz adalah sebesar 0,67 l/kWh saat pembebanan 72% dari kapasitas genset. Pensaklaran sistem hibrida secara otomatis berdasarkan sensor tegangan baterai (Ib) dan tegangan beban (Ic) dapat dilakukan dengan baik oleh Zelio. Saat Ib>Ic, beban disuplai baterai melalui inverter. Saat Ib≤Ic, genset ON menyuplai beban dan relai charger ON untuk men-charge baterai. Profil beban yang memenuhi sistem dalam skala laboratorium 1:6000 adalah beban dasar sebesar 37 W dan beban puncak sebesar 90 W. Untuk penyempurnaan penelitian ini, diperlukan penelitian lebih lanjut mengenai pengontrolan sensor tegangan output, sensor frekuensi, dan sensor volume gasoline pada genset menggunakan Zelio.

English Abstract

Energy is one of main concern in country’s growth and development. As the implication, it is needed an innovation of alternative energy which can be used continuously, one of them is solar energy. Since Indonesia is tropical country, it has huge potency in utilizing solar energy by using photovoltaic (PV) system which consists of solar panels, battery and inverter. Photovoltaic technology combined with diesel- generator set (genset) that used to be called PV-Genset hybrid system is developing rapidly since its potency in reducing the dependence on fossil energy and keeping the stability of electricity supplies. However, both of electricity demand and solar intensity which are fluctuative implies to PV-Genset hybrid system can’t perform optimally. That’s why it is needed power management control to fulfill the necessities of optimal electricity load. The aims of this research is to get the conception of PV-Genset hybrid system by using Zelio Logic Smart Relay which consists of: (1) parameter of voltage, current, and power of solar cell, (2) performance of current censor, (3) performance of genset automation and the optimal value of Specific Fuel Consumption (SFC), (4) performance of Zelio in system switching, (5) load profile, consists of the value of base load and peak load, which fits to the availability of solar panels and batteries in laboratory scale. In this research, power management control using Zelio Logic Smart Relay is designed to be the facility in executing energy transition from battery to genset automatically and vice versa. This research explains about how to design hybrid system in laboratory scale which consists of designing hardware (current censor, voltage divider circuit, genset automation), and designing software using Zelio Soft 2. The test is conducted on each of circuit section which consists of the test for solar cell parameter, current censor circuit, voltage divider circuit, genset automation and SFC’s characteristics, program simulation and system switching using relay. Based on the test result, the value of voltage and output power of solar cell would be increased in line with increasing of solar intensity, while the current would be decreased. In addition, from the test result, there are differences of voltage and current, that are 2.13 V and 1.01 A consecutively. The current censor which used in the system was able to detect current change flowing to load linearly by giving output voltage that became input of Zelio as the response. The series of genset automation could be functioned well and the optimal value of SFC in “Starke” genset with specification 2.8 kW 220 V 50 Hz was 0.67 l/kWh with the load was 72 percent of genset capacity. Hybrid system switching was automatically based on the censor of battery voltage (Ib) and load voltage (Ic) operated well by Zelio well. When Ib > Ic, the load was supplied by the battery through the inverter. When Ib ≤ Ic, the genset was ON supplying load and charger relay was ON to recharge the battery. Load profile which fits to the system in 1:6000 laboratory scale were 37 W for base load and 90 W for peak load. For the improvement of this research, it’s needed a continuation research in controlling censor of the output voltage, censor of the frequency, and censor of the gasoline volume on the genset by using Zelio.

Item Type: Thesis (Sarjana)
Identification Number: SKR/FT/2014/696/051408001
Subjects: 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting
Divisions: Fakultas Teknik > Teknik Elektro
Depositing User: Hasbi
Date Deposited: 04 Dec 2014 13:27
Last Modified: 23 Dec 2021 02:32
URI: http://repository.ub.ac.id/id/eprint/143025
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