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All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) IPTEK The Journal for Technology and Science
Mauridhi Heri Purnomo
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Computer Science & IT

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Pengaturan Kecepatan Motor Induksi Tanpa Sensor Kecepatan Menggunakan Metode Self-Tuning Fuzzy Sliding Mode Control Berbasis Direct Torque Control Arman Jaya; Soebagio Soebagio; Mauridhi Heri Purnomo
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2009
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

Metode pengaturan kecepatan putar motor induksi tanpa sensor menggunakan fuzzy logic sliding modecontroller(FLSMC) dijelaskan dalam paper ini,. Direct torque control (DTC) digunakan sebagai basis estimasiparameter kontrol. Estimasi putaran rotor, torka dan fluks dilakukan oleh DTC yang diberi input tegangan danarus stator. Untuk mencapai putaran yang dikehendaki digunakan estimasi putaran sebagai umpan balik padasistem kontrol. Error dan delta error kecepatan putar sebagai masukan pada Sliding Mode Control (SMC) danjuga sekaligus sebagai masukan bagi Fuzzy Logic (FL). Fungsi FL adalah sebagai tuning nilai parameter SMC.Hasil yang diperoleh melalui simulasi menunjukkan respon kecepatan putar yang cepat dalam kondisi start,perubahan beban dan perubahan set point. Khusus pada kondisi perubuhan beban, respon kecepatan hampirtidak mengalami perubahan kecepatan atau bisa dikatakan respon kecepatan kokoh bila ada gangguan.Kata Kunci: Direct torque control, Self-tuning Fuzzy sliding mode control, parameter kontrol
Advanced DVR with Zero-Sequence Voltage Component and Voltage Harmonic Elimination for Three-Phase Three-Wire Distribution Systems Margo P; Mauridhi Heri Purnomo; Mochamad Ashari; Zaenal P; Takashi Hiyama
IPTEK The Journal for Technology and Science Vol 20, No 4 (2009)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v20i4.21

Abstract

Dynamic Voltage Restorer (DVR) is a power electronics device to protect sensitive load when voltage sag occurs. Commonly, sensitive loads are electronic-based devices which generate harmonics. The magnitude and phase of compensated voltage in DVR depend on grounding system and type of fault. If the system is floating, the zero sequence components do not appear on the load side. Meanwhile, in a neutral grounded system, voltage sag is extremely affected by zero sequence components. A blocking transformer is commonly installed in series with DVR to reduce the effect of zero sequence components. This paper proposes a new DVR control scheme that is capable of eliminating the blocking transformer and reducing harmonic distortion. The system uses fuzzy polar controller to replace the conventional PI or FL controller that is commonly used. By taking into account the zero sequence components in the controller design, the effects of zero sequence components can be compensated. Simulated results show the effectiveness of the proposed DVR controller
Co-Authors Arman Jaya Margo P Mochamad Ashari Soebagio Soebagio Takashi Hiyama Zaenal P