Pengembangan Static Var Compensator Berbasis Hybrid PI-Fuzzy Logic Sebagai Pengatur Tegangan Sistem Distribusi Akibat Penetrasi Pembangkit Energi Baru Terbarukan Tersebar

Winarno, Istiyo (2020) Pengembangan Static Var Compensator Berbasis Hybrid PI-Fuzzy Logic Sebagai Pengatur Tegangan Sistem Distribusi Akibat Penetrasi Pembangkit Energi Baru Terbarukan Tersebar. Doctoral thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pemanfaatan energi baru terbarukan tersebar (DG) meningkat sangat drastis dalam satu dekade terahir. Keberadaan DG dalam sistem kelistrikan memiliki dampak positif terhadap kebersihan lingkungan, karena tidak ada gas emisi dalam proses pembangkitan energi, serta dapat menurunkan rugi rugi pada sistem kelistrikan. Sedangkan dampak negatif yang timbul adalah energi yang dibangkitkan oleh DG berfluktuasi berdasarkan kondisi alam. Pembangkit Listrik Tenaga Bayu (PLTB), sebagai salah satu jenis dari DG, memiliki karakteristik yang unik dibanding dengan beberapa pembangkit yang lain. Tegangan keluaran dari PLTB selalu berfluktuasi sepanjang hari seiring dengan fluktuasi kecepatan angin, demikian juga dengan daya aktif (P) dan daya reaktif (Q). Penetrasi PLTB ke sistem kelistrikan dalam jumlah besar berpengaruh pada profil tegangan serta kestabilan sistem. Salah satu metode pengaturan terhadap tegangan yang berfluktuasi tersebut adalah dengan pemasangan Static Var Compensator (SVC) tipe Thyristor Switched Capacitor-Thyristor Controlled Reactor (TSC-TCR). TSC-TCR berfungsi sebagai kompensator daya reaktif. Kelebihan dari TSC-TCR jika dibandingkan dengan kompensator yang lain adalah memiliki fleksibilitas pengendalian yang sangat bagus, dan respon terhadap perubahan yang cepat. Pada penelitian ini, performansi dari TSC-TCR ditingkatkan dengan menggunakan metode pengendali Hybrid PI-Fuzzy Logic (HPI-FL). Metode ini merupakan gabungan antara pengendali Fuzzy Logic (FL) dan PI Controller yang memiliki kelebihan mampu menemukan parameter terbaik dari PI dan FL, serta menghasilkan sebuah sistem pengendali yang mampu memberikan respon lebih baik jika dibandingkan dengan PI atau FLC yang berdiri sendiri. Penelitian ini memberikan kontribusi berupa rancangan sistem kendali TSC-TCR dengan metode HPI-FL. Sebagai validasi terhadap efektifitas regulasi tegangan sistem, metode kendali HPI-FL dibandingkan dengan metode: PI konvensional, dan FL-based Self-Tuning PI (FST-PI). Metode yang diusulkan, HPI-FL, terbukti mampu memberikan respon yang sangat baik.
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The use of Distributed Generation (DG) has increased dramatically in the last decade. The existence of DG in the electrical system network has a positive impact on environmental cleanliness, because there are no gas emissions in the energy generation process, and can reduce network losses. In contrast, the negative impact is the fluctuating energy generated by DG based on natural conditions. The wind power plant (PLTB), as one type of DG, has unique characteristics compared to several other plants. The output voltage from PLTB always fluctuates throughout the day along with fluctuations in wind speed, as well as active power (P) and reactive power (Q). Penetration of PLTB in a large number to electrical systems network affects the voltage profile and the stability of the system. One method of regulating the fluctuating voltage is by installing a Static Var Compensator (SVC) type Thyristor Switched Capacitor-Thyristor Controlled Reactor (TSC-TCR). TSC-TCR functioned as a reactive power compensator. The advantages of TSC-TCR when compared to other compensators are that it has very good control flexibility, and response to rapid changes. In this study, the performance of the TSC-TCR was improved by using the Hybrid PI-Fuzzy Logic (HPI-FL) control method. This method is a combination of Fuzzy Logic (FL) controller and PI Controller which has the advantage of being able to find the best parameters of PI and FL, and produces a control system that is able to provide better response when compared to a stand-alone PI or FLC. This study contributes in the design of a TSC-TCR control system with the HPI-FL method. As a validation of the effectiveness of system voltage regulation, the HPI-FL control method is compared with the conventional PI method, and FL-based Self-Tuning PI (FST-PI). The proposed method, HPI-FL, proved to be able to provide a very good response.

Item Type: Thesis (Doctoral)
Additional Information: RDE 621.319 Win p-1 2020
Uncontrolled Keywords: Distributed Generation, Regulasi tegangan, SVC, TSC-TCR, Hybrid PI-Fuzzy Logic, FL-based Self-Tuning PI
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3030 Electric power distribution systems
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters.
Divisions: Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20001-(S3) PhD Thesis
Depositing User: Istiyo Winarno
Date Deposited: 14 Mar 2025 01:22
Last Modified: 14 Mar 2025 01:22
URI: http://repository.its.ac.id/id/eprint/75349

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