scholarly journals TEKNIK NATURAL SAMPLING PWM INVERTER TIGA LEVEL

2020 ◽  
Vol 2 (2) ◽  
pp. 178-184
Author(s):  
I Made Wiwit Kastawan
Keyword(s):  
Pwm Inverter ◽  
Natural Sampling

Tulisan ini menampilkan bahasan tentang teknik natural sampling PWM untuk inverter diode clamped tiga-fasa. Teknik natural sampling PWM dengan komposisi sinyal carrier berbeda yaitu disposisi sinyal carrier (level-shifted) dan disposisi sinyal carrier dengan pergeseran fasa (phase-shifted) masing - masing untuk sinyal referensi sinusoidal dan sinyal referensi sinusoidal yang diinjeksi dengan gelombang harmonisa ketiga dibahas dan dilihat pengaruhnya terhadap unjuk kerja inverter diode clamped tiga-level tiga-fasa ditinjau dari sisi harmonisa gelombang atau riak arus keluarannya melalui simulasi. Hasil simulasi menunjukkan bahwa teknik natural sampling PWM level-shifted menghasilkan unjuk kerja inverter yang lebih baik jika dibandingkan dengan teknik natural sampling PWM phase-shifted.

scholarly journals Approximate Algorithm for Determining Pulse Edges of a PWM Inverter Based on Natural Sampling

2009 ◽  
Vol 2009 ◽  
pp. 1-23
Author(s):  
Dragutin Kostić ◽  
Vladimir Šinik
Keyword(s):  
Simple Procedure ◽  
Low Cost ◽  
Geometric Interpretation ◽  
Transcendental Equation ◽  
Approximate Algorithm ◽  
Digital Implementation ◽  
Pwm Inverter ◽  
Exact Procedure ◽  
Natural Sampling

The paper presents a new algorithm for determination of pulse edges of a modulated wave of a PWM voltage inverter which offers a possibility that natural sampling is realized with an arbitrary accuracy without applying an iterative procedure. The basic idea is to express the angles which determine pulse edges of the modulated signal as polynomials of amplitude modulation index. Geometric interpretation of sampling of the polynomial algorithm is identical with the geometric interpretation of natural algorithm, but the transcendental equation whose solution defines pulse edges of the modulated signal is replaced by a simple procedure of finding values of a polynomial whose coefficients are determined in advance by an exact procedure. This approach gives the possibility of digital implementation of polynomial sampling method using the low-cost microprocessor platforms.

New Multilevel Current-Source PWM Inverter with Full-Bridge Inductor Cells

2010 ◽  
Vol 130 (6) ◽  
pp. 808-815 ◽  
Author(s):  
Toshihiko Noguchi ◽  
Suroso
Keyword(s):  
Current Source ◽  
Pwm Inverter

Determination of Rotational-Machine Characteristics by Performing DC Tests using Voltage-Source PWM Inverter

2011 ◽  
Vol 131 (11) ◽  
pp. 1292-1300 ◽  
Author(s):  
Shu Yamamoto ◽  
Takashi Oyama ◽  
Takahiro Ara
Keyword(s):  
Voltage Source ◽  
Pwm Inverter

High-Carrier-Frequency Iron-Loss Characteristics Excited by GaN FET Single-Phase PWM Inverter

2016 ◽  
Vol 136 (2) ◽  
pp. 110-117 ◽  
Author(s):  
Takahiro Tanaka ◽  
Shoko Koga ◽  
Ryosuke Kogi ◽  
Shunya Odawara ◽  
Keisuke Fujisaki
Keyword(s):  
Carrier Frequency ◽  
Single Phase ◽  
Iron Loss ◽  
Pwm Inverter ◽  
High Carrier ◽  
Gan Fet
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