Discrete-event switching control for buck converter based on the FPGA

2011 ◽  
Vol 19 (5) ◽  
pp. 502-512 ◽  
Author(s):  
M. Truntic ◽  
M. Milanovic ◽  
K. Jezernik
Keyword(s):  
Discrete Event ◽  
Switching Control ◽  
Buck Converter

Multi-Period Frame Transient Switching Control for Low-Voltage High-Current Buck Converter With a Controlled Coupled Inductor

2019 ◽  
Vol 34 (10) ◽  
pp. 9743-9757 ◽  
Author(s):  
Zhaoyang Zhao ◽  
Weiguo Lu ◽  
Weiming Chen ◽  
Xiong Du ◽  
Herbert Ho-Ching Iu
Keyword(s):  
Low Voltage ◽  
Switching Control ◽  
Buck Converter ◽  
High Current

scholarly journals Perancangan Sistem Grid Tie Inverter pada Pembangkit Listrik Tenaga Surya

2019 ◽  
Vol 7 (2) ◽  
pp. 339
Author(s):  
SITI SAODAH ◽  
SRI UTAMI
Keyword(s):  
Harmonic Distortion ◽  
Control Process ◽  
Switching Control ◽  
Boost Converter ◽  
Buck Converter ◽  
Total Harmonic Distortion ◽  
Control Grid ◽  
Two Stage ◽  
Grid Systems ◽  
Lc Filter

ABSTRAKGrid Tie Inverter (GTI) merupakan inverter yang digunakan untuk mengubah energi yang dihasilkan panel surya berupa arus searah (DC) menjadi arus bolakbalik (AC). Keluaran dari GTI berupa bentuk gelombang sinusoidal yang masih belum ideal dan mempunyai nilai Total Harmonic Distortion (THD) di atas 3% serta nilai efisiensi belum mencapai 90%. Pengurangan nilai THD dan peningkatan efisiensi dapat dilakukan melalui proses kontrol switching pada inverter. Penelitian ini mengusulkan inverter dengan boost converter dua tahap, buck converter dua tahap, rangkaian switching control inverter, H-Bridge inverter dan rangkaian LC filter. Teknik switching dari inverter yang diusulkan terdiri dari kombinasi modulasi lebar pulsa sinusoida dan gelombang persegi. Berdasarkan hasil pengujian didapatkan nilai THD sebesar 4,97%. Terdapat selisih sebesar 1,97% dari nilai awal perancangan. Untuk efisiensi rata-rata inverter off-grid (tidak terkoneksi dengan PLN) sebesar 89,48% dan 79,4% untuk inverter on-grid (terkoneksi dengan PLN).Kata kunci: GTI, boost converter, buck converter, switching control,grid, THD. ABSTRACTGrid Tie Inverter (GTI) is an inverter used to convert energy resulted by solar panels in the form of direct current (DC) to alternating current (AC). The output of GTI is unideal sinusoidal and having Total Harmonic Distortion (THD) above 3% and efficiency below 90%. Reducing the THD value and increasing efficiency can be done through switching control process on inverters. This research proposed an inverter using two-stage boost converter, two-stage buck converter, an inverter switching control circuit, H-Bridge inverter and LC filter circuit. The switching technique of the proposed inverter system combined sinusoidal and square wave width modulation. The result showed THD of the proposed system is 4.97%, and still, there is a difference of 1.97% of the desired value. For average efficiency of off-grid systems (not connected with State Electricity Company/PLN) is 89.48% and 79.4% for on-grid systems (connected with PLN).Keywords: GTI, boost converter, buck converter, switching control,grid, THD

Two-Period Frame Transient Switching Control for Buck Converter Using Coupled-Inductor Auxiliary Circuit

2019 ◽  
Vol 66 (10) ◽  
pp. 8040-8050 ◽  
Author(s):  
Weiguo Lu ◽  
Zhaoyang Zhao ◽  
Yixiao Ruan ◽  
Shaoling Li ◽  
Herbert Ho-Ching Iu
Keyword(s):  
Switching Control ◽  
Buck Converter ◽  
Auxiliary Circuit
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