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Refined Model Predictive Control of Back-to-Back 3L-NPC Converter Interfacing a PMSG Based WECS with Grid for Blocking High Jumps in Voltages


Aswani Kumar Eedara*, Chandra Sekhar Koritala and Srinivasa Rao Rayapudi   Pages 1 - 9 ( 9 )


Background: For controlling a back-to-back three-level (3L) neutral-point-clamped (NPC) converter of a permanent-magnet synchronous generator (PMSG) based wind energy conversion system (WECS), a refined model predictive control (RMPC) strategy is presented in this paper.

Methods: The RMPC strategies of PMSG-side and network-side converters aim at prevention of the high jumps in line and pole voltages of both the converters. A suitable subset of switching states (SSs), which can prevent these high jumps, is predetermined for each SS. In each control cycle, the RMPC algorithm determines an optimal switching state from an appropriate candidate set of SSs.

Results: The functioning of the RMPC algorithms is checked with simulation tests

Conclusion: The effect of parameter uncertainty on the functioning of the RMPC algorithm is also studied.


Model predictive control, PMSG, Wind Energy, High jumps in voltages, Back-to-back, three-level, Neutral-point-clamped, Parameter mismatch


Electrical & Electronics Engineering Dept., Jawaharlal Nehru Technological University, Kakinada, Electrical & Electronics Engineering Dept., RVR & JC College of Engg, Guntur, Electrical & Electronics Engineering Dept., Jawaharlal Nehru Technological University, Kakinada

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