A novel single phase DC-AC inverter

Abdullah, Muhammad Faizal; Iqbal, Shahid; Masri, Syafrudin

doi:10.1109/scored.2012.6518633

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…The theory of the LC-lowpass filter is well known and needs slight adjustment for using it to the PWM signal. The capacitor and inductor values can be calculated by using equation (4) and equation 5…”

Section: Electrostatic Generator and Invertermentioning

confidence: 99%

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Simulation and modeling of high voltage DC to AC PWM inverter for electrostatic generator

2018

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This paper proposes a single-phase DC to AC inverter for ESG (electrostatic generators) that may be used in the household’s application. The electrostatic generators were developed a while ago and remained abandoned for a long time. Now, as the modern technology advanced, it’s time to utilize the ESG to power generation. A pulse width modulation (PWM) based high voltage DC to AC inverter is a suitable system for converting the EGS high electrostatic DC voltage into standard 50Hz, 220V(rms) AC. The PWM technique is used to control the inverter switches to create a pulse width modulated bi-phase square wave signal. A lowpass LC filter has been utilized to remove the higher harmonic frequencies and which is capable to reduce the total harmonic distortion (THD) around 3.5%. The proposed model showed the overall system performance in terms of efficiency is 95%. To use ESG, this inverter is an easy and cost-effective electrical device. From the result, it is observed that the output voltage of the proposed inverter is greatly improved compared to the other inverter circuits.

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Section: Electrostatic Generator and Invertermentioning

confidence: 99%

“…Based on the circuit topology an inverter can be worked as a half bridge or a full bridge mode [4]. They have their own merits and demerits.…”

Section: Introductionmentioning

confidence: 99%

Simulation and modeling of high voltage DC to AC PWM inverter for electrostatic generator

2018

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“…The high gain DC-AC converters are widely used in various applications such as employed for battery, solar photovoltaic, fuel cell fed applications like domestic lighting, motor drive, active filter, electric vehicles, hybrid electric vehicles, naval/space/aerospace compact power conversion modules, uninterrupted power supplies and etc. The DC-AC converter in these applications are required to provide high gain with high power density and less component count (Abdullah et al, 2012;Castilla et al, 2009;Inoue and Akagi 2007;Mazumder and Rathore 2011;Min et al, 2009;Swaminathan and Lakshminarasamma 2018;Zhao et al, 2014). Size and cost of the uninterruptible power supply are very important.…”

Section: Introductıonmentioning

confidence: 99%

Yüksek Frekans Anahtarlamalı Faz Kontrollü DC-AC İnvertör

ELMAS

ALAGÖZ²

2022

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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With the increased power to weight ratio, corresponding to the developments in technology and material science, the demand for small uninterruptible power supply and high frequency transformers in transport vehicles and device technologies where the weight is particularly important has increased. An analysis of the high frequency switched phase-controlled DC-AC inverter and the high frequency transformer is presented. This inverter has a pair of switches in each side of the primary and the secondary of the transformer. The voltage conversion ratio is controlled by the phase difference between the two pairs of switches. The transformer is miniaturized by increasing the switching frequency. Thus the volume and weight of the system have been reduced. Current and voltage jumps in similar studies were reduced by using faster elements and opto-coupler, and these jumps were minimized by using snubber circuits. This DC-AC inverter and the high frequency transformers is especially suitable for small uninterruptible power supply systems. The circuit performed in the application is a 110 W DC-AC converter, the output voltage is 220 V, the efficiency is 93%. The high frequency transformer used in the application circuit has a physical size of 1/7 and a weight of 1/10 according to the sheet metal core transformer. When the circuit's power supply, driving circuits, switches, fans and filters were taken into consideration, its physical size was reduced by 1/5 and its weight by 2/3.

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