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Reactive Power Control and Neutral Current Elimination of Four Wire Five Level NPC Inverter based STATCOM using 3D-SVPWM Technique

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Abstract

In this paper, three phase four wire five level Neutral Point Clamped Inverter (NPCI) based Static synchronous Compensator (STATCOM) is implemented for reactive power control and neutral current elimination. Three dimensional Space Vector Pulse Width Modulation (3D-SVPWM) control strategy is developed to control this 5-level NPC inverter. The behaviour of static synchronous compensator is analyzed and reactive power control is done using constant DC voltage. The objective of this compensating method is to provide balanced and sinusoidal source currents under unbalanced and nonlinear load conditions and reactive power control. The 3D-SVPWM technique provides reduced harmonic content in output voltage and current, controlled source current, minimized common mode voltage and improved output voltage. In 3D-SVPWM, switching pulses are generated with non-redundant switching states, which lead to reduce the complexity in switching time calculation and computational time is less. The highlights of the paper includes the neutral current is reduced to 0.25A, source current harmonics is minimized and it provides balanced and sinusoidal source currents with help of STATCOM compensation. The simulation and experimental results demonstrates the sinusoidal and harmonics free source current and minimized neutral current for four wire five level NPCI based STATCOM.

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source current for various methods 3D-SVPWM & 2D-SVPWM

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Authors and Affiliations

  1. Department of EEE, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, India

    R. Palanisamy, D. Karthikeyan, S. Vidyasagar, V. Kalyanasundaram, K. Selvakumar, K. Vijayakumar & D. Selvabharathi

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  1. R. Palanisamy
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  2. D. Karthikeyan
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  3. S. Vidyasagar
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  4. V. Kalyanasundaram
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  5. K. Selvakumar
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  6. K. Vijayakumar
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  7. D. Selvabharathi
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Correspondence to R. Palanisamy.

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Palanisamy, R., Karthikeyan, D., Vidyasagar, S. et al. Reactive Power Control and Neutral Current Elimination of Four Wire Five Level NPC Inverter based STATCOM using 3D-SVPWM Technique. J. Electr. Eng. Technol. 16, 2083–2097 (2021). https://doi.org/10.1007/s42835-021-00738-0

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  • DOI: https://doi.org/10.1007/s42835-021-00738-0

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