A Novel Soft Switching Based Fuzzy Logic Control for Single Phase Inverter

2014 ◽  
Vol 573 ◽  
pp. 143-149
Author(s):  
N. Ismayil Kani ◽  
B.V. Manikandan ◽  
Prabakar Perciyal
Keyword(s):  
Fuzzy Logic ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Soft Switching ◽  
Switching Frequency ◽  
Pwm Inverter ◽  
Zero Voltage Switching ◽  
Control Scheme ◽  
Zero Voltage ◽  
Voltage Switching

—This The Pulse Width Modulation (PWM) DC-to-AC inverter has been widely used in many applications due to its circuit simplicity and rugged control scheme. It is however driven by a hard-switching pulse width modulation (PWM) inverter, which has low switching frequency, high switching loss, high electro-magnetic interference (EMI), high acoustic noise and low efficiency, etc. To solve these problems of the hard-switching inverter, many soft-switching inverters have been designed in the past. Unfortunately, high device voltage stress, large dc link voltage ripples, complex control scheme and so on are noticed in the existing soft-switching inverters. This proposed work overcomes the above problems with simple circuit topology and all switches work in zero-voltage switching condition. Comparative analysis between conventional open loop, PI and fuzzy logic based soft switching inverter is also presented and discussed. Keywords—Zero voltage switching, Inverter, Dc link, PI controller, Fuzzy logic system control ,Modulation strategy, Soft switching

scholarly journals PERANCANGAN ZERO VOLTAGE SWITCHING BUCK CONVERTER DENGAN BEBAN RESISTIF BERVARIASI DAN SEBAGAI CATU DAYA UNTUK MOTOR ARUS SEARAH

TRANSIENT ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 108
Author(s):  
Zya Jamaluddin Al-Rasyid Arief Rahman ◽  
Jaka Windarta ◽  
Hermawan Hermawan
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Buck Converter ◽  
Soft Switching ◽  
Zero Voltage Switching ◽  
Zero Voltage ◽  
Voltage Switching

Penggunaan konverter arus searah sebagai penghasil tegangan arus searah  sudah mengalami perkembangan. Rangkaian konverter arus searah diatur dengan menggunakan rangkaian kontrol Pulse Width Modulation (PWM) yang digunakan sebagai pengendali saklar. Proses ketika saklar mengalami kondisi nyala dan mati mengakibatkan terjadinya rugi-rugi pensaklaran. Masalah tersebut dapat diatasi dengan menggunakan metode soft-switching. Salah satu metode soft-switching yang digunakan adalah Zero Voltage Switching (ZVS). Teknik pensaklaran ZVS dapat membuat saklar bekerja ketika tegangan bernilai nol. Teknik pensaklaran tegangan nol ini dapat mengurangi rugi - rugi pensaklaran yang terjadi, sehingga  dapat meningkatkan efisiensi konverter arus searah yang digunakan sebagai catu daya motor arus searah. Berdasarkan hasil pengujian, rangkaian konverter arus searah tipe ZVS buck converter dapat menghasilkan daya keluaran sebesar 103,77 watt dengan nilai efisiensi sebesar 94,83%. Nilai efisiensi tertinggi terjadi ketika diberi beban statis berupa resistor 500 Ω sebesar 99,77%.

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