A Robust Second-Order Sliding Mode Control of Sensorless Five Level Packed U Cell Inverter

Krama, Abdelbasset; Refaat, Shady S.; Abu‐Rub, Haitham

doi:10.1109/iecon43393.2020.9254772

Cited by 6 publications

(1 citation statement)

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“…Furthermore, PI controller drawbacks including 104 sluggish response and high overshoot/undershoot under sud-105 den change of operating conditions, reduces the performance 106 of the power converter. Due to rapid expansion of signal 107 processor capabilities and digital control platforms, the VOC 108 is modified using an advanced control strategies such as slid-109 ing mode control (SMC) [22], and model predictive control 110 (MPC) [23]. These methods eliminate the drawbacks caused 111 by the inner PI regulators.…”

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Reconfigurable Model Predictive Control for Grid Connected PV Systems Using Thirteen-Level Packed E-Cell Inverter

et al. 2022

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This paper describes a novel single-phase thirteen-level packed E-cell inverter (PEC13) for grid-tied photovoltaic (PV) systems. PEC13 topology contains six power switches, two four-quadrant switches and four DC capacitors. The main advantage offered by the proposed PEC13 is the ability to produce different voltage levels without any modifications in power circuit when open circuit fault occurs on one or two four-quadrant switches. In faulty condition, PEC13 can continue its operation and behaves as PEC9 or PUC7 inverter configuration. Furthermore, a reconfigurable finite-control set model predictive control (R-FCS-MPC) is designed to control the proposed grid-connected PV systems based PEC13 inverter. The proposed R-FCS-MPC assures the transition between PEC13 to PEC9 or PUC7 configuration through the adjustment of DC-link capacitor voltages balancing. The effectiveness of the R-FCS-MPC with the proposed PEC13 topology is evaluated through experimental validations using real-time hardware in the loop (HIL) setup. Provided experimental results demonstrate that the R-FCS-MPC enables to achieve the normal operation, multi-functionality, besides the high performance of the novel PEC13 inverter topology under step change in solar irradiance and faulty operation of four-quadrant switches. 14 15 INDEX TERMS Photovoltaic system, thirteen-level packed E-Cell (PEC13), grid-connected multilevel inverter, finite-control set model predictive control (FCS-MPC).

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