Robust Predictive Current Control of PMSG Wind Turbines with Sensor Noise Suppression

Junda Li, Oluleke Babayomi, Zhenbin Zhang () and Zhen Li
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Junda Li: School of Electrical Engineering, Shandong University, Jinan 250061, China
Oluleke Babayomi: School of Electrical Engineering, Shandong University, Jinan 250061, China
Zhenbin Zhang: School of Electrical Engineering, Shandong University, Jinan 250061, China
Zhen Li: School of Electrical Engineering, Shandong University, Jinan 250061, China

Energies, 2023, vol. 16, issue 17, 1-17

Abstract: Model predictive control (MPC) is an efficient and multi-functional control scheme for synchronous permanent magnet generators (PMSGs). However, the effective management of traditional MPC depends on precise system models. Multiple uncertainties of permanent magnet flux, motor inductance, filter inductance and parameter measurement noise will limit MPC’s performance. The conventional linear extended state observer (ESO) can perform robust predictive control of the ultralocal model of the PMSG system to cope with parameter mismatches. However, the ESO is limited in balancing disturbance rejection with measurement noise attenuation. Since the amplification of high-frequency noise pollution can lead to both poor control performance and system instability, this challenge is of significant importance. To solve the problem, a new hybrid parallel cascaded ESO (PCESO) model-free predictive control framework is proposed using the three-level neutral-point-clamped (NPC) power electronic converter, on both the machine side and grid side. Analytical discussions of the time and frequency domain characteristics of the PCESO demonstrate its superior characteristics over the ESO. The proposed method can effectively balance parameter mismatch, disturbance rejection and high-frequency noise suppression. Finally, the effectiveness of the proposed method, under uncertainties of parameter mismatches, measurement noise and permanent magnet flux, is verified through real-time hardware-in-the-loop tests on a back-to-back grid-tied PMSG interfaced with an NPC power converter.

Keywords: permanent magnet synchronous generator; wind turbine; model predictive control; noise suppression; disturbance rejection; robust control (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: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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