1 Department of Electrical and Electronics Engineering, Samskruti College of Engineering and Technology, Hyderabad 501301, India.
2 Department of Electrical and Electronics Engineering, JNTUHCEH, Hyderabad 500085, India.
Received on 16 November 2022; revised on 25 December 2022; accepted on 28 December 2022
Photo-voltaic (PV) tied Z-source Neutral-point clamped NPC-MLI (Z-NPC-MLI) is used in solar grid connected applications due to its improved performance related to conservative inverters due to its single stage power conversion. Though the Z source inverters adaptation is accepted in grid connected technology, the need for appropriate controller to meet out the grid/standalone requirements is becoming necessary. The space vector pulse width modulation (SVPWM) strategy is a prominent modulation technique for Z-source NPC-MLIs due to their appropriate voltage vector selection opportunity. The current controller (CC) based SVPWM is not attempted, which is the most essential consideration for the grid connected inverter to provide a low harmonic distortion, high quality current. With all this aim, the paper presents a PV tied Z-NPC-MLI grid connected system with a unique hysteresis current control SVPWM (HSVM) strategy with neutral point (NP) balancing control. The simulation results are confirmed the feasibility and reliability of the proposed CC for the PV tie grid connected Z- Source MLI.
Z source MLI; Neutral-point clamped inverter; Space Vector PWM; Hysteresis current controller; Neutral Point Balancing
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Suresh Kumar Annam and N. Yadaiah. A hysteresis current control PWM for PV tied Z-source NPC-MLI fed induction motor with neutral point balancing. International Journal of Science and Research Archive, 2022, 07(02), 542-554. Article DOI: https://doi.org/10.30574/ijsra.2022.7.2.0339
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