Desain Kontrol Nonlinier AC/DC Converter Pada Hybrid Microgrid Sumber Energi Pembangkit Listrik Tenaga Surya

Suharso, Panji Setyo (2023) Desain Kontrol Nonlinier AC/DC Converter Pada Hybrid Microgrid Sumber Energi Pembangkit Listrik Tenaga Surya. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini berfokus mendesain suatu sistem kontrol untuk menyelesaikan permasalahan nonlinear pada sistem suplai tenaga listrik melibatkan sumber PV (Photovoltaic) yang terhubung melalui microgrid ke sumber grid. Perubahan konsumsi beban pelanggan pada sistem suplai akan menggangu konsistensi tegangan dan frekuensi suplai. Penelitian ini mengusulkan metode input-output linierization untuk desain sistem kontrol yang mampu menjaga nilai tegangan dan frekuensi pada nilai konstan. Penambahan parameter sumber berbasis energi baru dan terbarukan menjadi tantangan tersendiri dalam perkembangan microgrid dimasa depan. Perancang sistem kontrol yang dapat mengintegrasikan antara sumber seperti Photovoltaic dan sistem grid besar melalui microgrid menjadi sebuah keharusan yang diupayakan agar dimasa depan energi hijau yang ramah lingkungan dapat mengambil peranan besar dalam memenuhi kebutuhan listrik masyarakat. Modifikasi model nonlinear dari persamaan dinamika sistem microgrid dilakukan berdasarkan teori lie derivative, model persamaan nonlinear diturunkan sampai persamaan output mendapatkan nilai u (input control). Nilai u yang didapat dari modifikasi persamaan sistem tersebut digunakan untuk mendesain sistem kontrol, kemudian nilai u dengan menggunakan metode feedback linierization akan digunakan untuk mencari nilai gain yang sesuai namun sebelumnya dilakukan terlebih dahulu transformasi koordinat untuk mencari nilai matrix A dan B sehingga bentuk model nonlinear dapat ditransformasikan menjadi bentuk linier. Hasil modifikasi yang dilakukan menghasilkan sistem kontrol yang mampu mempertahankan suplai dengan parameter tegangan 238 V AC dan frekunsi 50 Hz (overshoot 6 %) sehingga kebutuhan daya pada sistem suplai tenaga listrik dapat terpenuhi.
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This research focuses on designing a control system to solve nonlinear problems in the power supply system involving PV (photovoltaic) sources connected through microgrids to grid sources. Changes in customer load consumption in the supply system will disrupt the consistency of voltage and frequency supply. This research proposes an input-output linearization method for designing a control system that can maintain the values of voltage and frequency at a constant value. The addition of parameters for new and renewable energy sources is a challenge in the future development of microgrids. Control system designers who can integrate between sources such as photovoltaic and large grid systems through microgrids are a must so that, in the future, environmentally friendly green energy can play a major role in meeting the electricity needs of society. Modification of the nonlinear model of the microgrid system’s dynamic equation is carried out based on the Lie derivative theory; the nonlinear equation model is derived until the output equation obtains a value of u (control input). The value of u obtained from the modification of the system equation is used to design a control system. Then the value of u using the feedback linearization method will be used to find the appropriate gain value, but before that, coordinate transformation is carried out first to find matrix A and B values so that the nonlinear model form can be transformed into linear form. The modification results produced a control system that can maintain supply with voltage parameters of 238 V AC and a frequency of 50 Hz (overshoot 6%) so that power needs in the power supply system can be fulfilled.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Photovoltaic, input-output linearization, nonlinear, microgrid, feedback linearization, voltage, frequency, tegangan, frekuensi.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1056 Solar power plants. Ocean thermal power plants T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2692 Inverters
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis
Depositing User:	Panji Setyo Suharso
Date Deposited:	22 Jul 2023 04:39
Last Modified:	22 Jul 2023 04:39
URI:	http://repository.its.ac.id/id/eprint/98847

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