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Simulation and Design of A Single Phase Inverter with Digital PWM Issued by An Arduino Boardinfo

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keyboard_arrow_downkeyboard_arrow_upMoez YoussefMoez YoussefMoez YoussefMoez YoussefMoez Youssef

International Journal of Engineering Research and

https://doi.org/10.17577/IJERTV9IS080237downloadDownload PDFdescriptionSee full PDFvisibility

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Abstract

The current paper has as major purpose the design of a single-phase inverter for educational purposes. This project has the aim to use Arduino board to ease the Pulse Width Modulation (PWM) implementation on a single-phase inverter, substituting analogical circuitry. To achieve those aims, a first complete theoretical analysis will be made, including the study of the different conventional PWM techniques. The complete design is modeled in Proteus software and its output is verified practically.

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Key takeaways

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  1. The project aims to design a single-phase inverter for educational purposes using Arduino for PWM.
  2. Two PWM techniques, Sinusoidal PWM (SPWM) and Specific Harmonic Elimination (SHE), are implemented.
  3. For a square wave inverter, THD values are 48.3% for voltage and 12.2% for current.
  4. With SPWM, the THD load current improves to 28.3%, aiding in filtering harmonics.
  5. Proteus simulations validate experimental results, confirming Arduino's effectiveness for PWM applications.

FAQ's

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AI generated

What are the main advantages of using PWM in inverters?add

The research finds that using PWM reduces total harmonic distortion (THD) in output currents, achieving a load current THD of 28.3% compared to 12.2% for a square wave inverter. This facilitates easier filtering of harmonics, enhancing output quality.

How does the Arduino board contribute to inverter design?add

The study reveals that the Arduino UNO board effectively generates PWM pulses necessary for switching MOSFETs in the inverter design. This digital implementation simplifies the control mechanism and offers an accessible educational platform.

What specific harmonics does the SHE modulation eliminate?add

The Specific Harmonic Elimination (SHE) technique targets and eliminates harmonics 3, 5, 7, and 9 from the PWM inverter output. This results in a more refined output waveform, improving power quality.

What was the role of Proteus simulations in this project?add

Proteus simulations verified the performance of the square wave and PWM inverters before practical implementation. The simulations confirmed that theoretical predictions aligned with experimental outcomes, validating the design approach.

What types of loads were tested with the inverter?add

The full-bridge inverter was tested with a resistive-inductive (R-L) series load, configured with R=25Ω and L=100mH. This setup demonstrated the inverter's behavior across different load conditions.

Figures

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Fig.1: the full-bridge inverter Inverters are circuits that convert DC to AC. The full- bridge converter of Fig.1 is the basic structure of an inverter. The switches S1, S2, S3, S4 in the full-bridge inverter must be capable of carrying both positive and negative currents. Therefore, a feedback diode is placed in parallel (antiparallel) with each switch. n The main objective of this project is the design, simulation and testing of a single-phase inverter for educational purposes. In order to achieve this, the first step is a theoretical reminder about inverters. The most important task in this project is the implementation of the PWM modulation digitally. For this purpose, the way to obtain the PWM signal from the Arduino board is explained. After that, Proteus simulations are carried out in order to have a better idea about the results expected. Once the theoretical simulation is made, the circuit should be built into a protoboard for real testing.
Fig.1: the full-bridge inverter Inverters are circuits that convert DC to AC. The full- bridge converter of Fig.1 is the basic structure of an inverter. The switches S1, S2, S3, S4 in the full-bridge inverter must be capable of carrying both positive and negative currents. Therefore, a feedback diode is placed in parallel (antiparallel) with each switch. n The main objective of this project is the design, simulation and testing of a single-phase inverter for educational purposes. In order to achieve this, the first step is a theoretical reminder about inverters. The most important task in this project is the implementation of the PWM modulation digitally. For this purpose, the way to obtain the PWM signal from the Arduino board is explained. After that, Proteus simulations are carried out in order to have a better idea about the results expected. Once the theoretical simulation is made, the circuit should be built into a protoboard for real testing.
Fig.10: Block Diagram of Single Phase Inverter
Fig.10: Block Diagram of Single Phase Inverter
In this section, Proteus simulations are carried out for the square wave and the PWM inverters (SPWM+SHE). Fig.13: Proteus model of the whole circuit
In this section, Proteus simulations are carried out for the square wave and the PWM inverters (SPWM+SHE). Fig.13: Proteus model of the whole circuit
Fig.19: Proteus simulation for SPWM inverter The red and yellow waveforms represent respectively the load current and the output voltage.
Fig.19: Proteus simulation for SPWM inverter The red and yellow waveforms represent respectively the load current and the output voltage.
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References (9)

  • R.Senthilkumar and M.Singaaravelu, "Design of single phase inverter using dsPIC30F4013," International Journal of Engineering Science and Technology, Vol. 2 (11), 2010, pp. 6500-6506.
  • A. A. Mamun, M. F. Elahi, M. Quamruzzaman and M. U. Tomal, "Design and Implementation of Single Phase Inverter," International Journal of Science and Research (IJSR), Volume 2 Issue 2, February 2013, pp. 163-167.
  • B. Ismail, S.Taib, A. R Mohd Saad, M. Isa and C. M. Hadzer, "Development of a Single Phase SPWM Microcontroller-Based Inverter," First International Power and Energy Coference PECon 2006, November 28-29, 2006, Putrajaya, Malaysia, pp. 437-440.
  • S. K. Singh, H. Kumar, K. Singh and A. Patel, " A survey and study of differnt types of PWM techniques used in induction motor drive," International Journal of Engineering Science & Advanced Technology (IJESAT), Volume-4, Issue-1, 018-122, Jan-Feb 2014, pp.18-22
  • Elisa Braco Sola, "Design and simulation of a single phase inverter with digital PWM," Bachelor Final Thesis Industrial Technologies Engineering, University of Applied Sciences -Hochschule Niederrhein, Krefeld, Germany. July 2016.
  • S. Mecheri, " Réalisation d'un onduleur de tension controlé par une carte arduino," Department of electrical engineering, Constantine University, Algeria. Submitted for the requirements for the Degree of Master in Electrotechnics, May-2014.
  • Online]. Available: https://www.f-legrand.fr/scidoc/index.html.
  • M. H. Rashid and F. L. Luo, "Power Electronics Handbook: Devices, Circuits and Applications, " 2nd ed. New York: Elsevier Academic, 2006.
  • D.W Hart, "Power Electronics," McGraw-Hill, 2011.
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