A quasi-Z-source active neutral point clamped inverter topology employing symmetrical/unsymmetrical boost modulation control scheme for renewable energy resources

Authors : Rehan MAJEED, Danial SALEEM, M İmtiaz HUSSAIN, Muhammad Talha GUL, Muhammad Rehan USMAN, Salman MAJEED

Pages : 3114-3137

View : 17 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This paper proposes a bipolar quasi-Z-source active neutral point clamped inverter insert ignore into journalissuearticles values(QZS-ANPCI); topology. It acts as a buck/boost inverter insert ignore into journalissuearticles values(3-phase, 3-level); to integrate renewable energy resources under their fluctuating DC voltages. We propose a symmetrical/unsymmetrical boost modulation control technique to mitigate the DC-link unbalance voltage problem in an ANPC inverter. This worthwhile control technique exploits voltage-current closedloops on AC and DC sides to regulate the desired parameters. Moreover, the constant boost control insert ignore into journalissuearticles values(CBC); modulation has provided a switching sequence that generates a symmetrical/unsymmetrical full shoot-through insert ignore into journalissuearticles values(FST); state for boosting input DC voltage in the proposed inverter. Detailed loss and efficiency analysis is carried out to show its superior performance under the proposed scheme. Furthermore, the total harmonic distortion insert ignore into journalissuearticles values(THD); of the proposed QZS-ANPCI meets IEEE Standard-519. Simulink/MATLAB insert ignore into journalissuearticles values(MathWorks, USA); and PSIM insert ignore into journalissuearticles values(Powersim, USA); software programs are used to simulate the proposed topology. To verify the theoretical proposals and simulation results, we have developed an experimental prototype setup insert ignore into journalissuearticles values(1 kW);. Both simulation results and experimental data show satisfactory agreement and support the theoretical postulates.
Keywords : Z source inverter, quasi z source inverter, buck boost inverter, neutral point clamped inverter, active neutral point clamped inverter