Hybrid ANPC Grid-Tied Inverter Design with Passivity-Based Sliding Mode Control Strategy

Yifei Zhang, Kang Li () and Li Zhang
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Yifei Zhang: School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, UK
Kang Li: School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, UK
Li Zhang: School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, UK

Energies, 2024, vol. 17, issue 15, 1-17

Abstract: Voltage source inverters are extensively used in the grid connection of renewable energy-sourced generators, and multilevel converters, in particular, have attracted a great deal of attention in recent years. This paper investigates the application of a novel passivity-based sliding mode (PSM) control scheme on three-level grid-tie active Neutral-Point-Clamped (ANPC) inverters that yield fast and stable responses to grid impedance variations. Simulation studies confirm that this control scheme can produce high tracking performance and is also robust against grid load variations. Furthermore, to enhance ANPC efficiency, the loss distribution of switching devices controlled by the proposed strategy is evaluated. An optimal scheme is finally proposed for allocating silicon and Wide-Band-Gap switching devices, resulting in a hybrid ANPC inverter capable of achieving a desirable trade-off between the power losses and the device cost.

Keywords: ANPC; sliding mode control; loss analysis; hybrid inverter structure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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