A Proposed Five-level Neutral Point Clamped Inverter | ||||
| ERJ. Engineering Research Journal | ||||
| Article 2, Volume 44, Issue 2, April 2021, Page 135-140 PDF (768.02 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2021.58129.1072 | ||||
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| Authors | ||||
Ghada Alaa Elmenofy  1; Dina Osheba2; Elwy Elkholy3; Abbas El-Hefnawy4
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| 1Electrical department, Faculty of engineering, Menoufia University, Shebin Elkom, Egypt | ||||
| 2electrical engineering,Faculty of engineering,menoufia university | ||||
| 3Prof. of Power Electronics, Electrical Eng., Dept., Faculty of Eng., Menoufia University | ||||
| 4Prof. of Control of machines, Electrical Engineering department, Faculty of Engineering, Menoufia university | ||||
| Abstract | ||||
| This paper presents a proposed five-level inverter based on conventional five-level Neutral Point Clamped (NPC) topology which is a type of Multilevel Inverters (MLIs). MLI is a great solution for high power application in addition to medium power, low power and renewable energy applications. The proposed topology reduces the number of input DC sources as compared with the conventional five level NPC topology. Also, this circuit reduces the conduction losses by reducing number of switches that turned on in each mode. The circuit operation analysis in each mode is illustrated. A proper modulation strategy based on Pulse Width Modulation PWM is applied on the proposed circuit. The simulation of the proposed circuit is carried out in MATLAB/SIMULINK environment. The results show a comparison between conventional five-level NPC and modified circuits which illustrate a good performance for the proposed one which make it suitable for many applications such as photovoltaic systems. | ||||
| Keywords | ||||
| Five level inverter; NPC; multicarrier PWM technique; THD; conduction losses | ||||
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