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The traditional finite-control-set model predictive control (FCS-MPC) method for a cascaded H-bridge (CHB) rectifier has two main issues: heavy computational burden and low steady-state current performance. In this paper, a novel FCS-MPC method has been proposed for a single-phase CHB rectifier. The proposed method solves the optimization problem of FCS-MPC for one cell by one cell, like a “pipeline...
The multi-actuation-based model predictive control (MPC) method can significantly improve the steady-state performance of cascaded H-bridge (CHB) inverters. However, a large computational burden is generated on digital controller when this method is applied for CHB inverter due to its large number of control actuations. In this paper, a new MPC method is proposed for a single-phase CHB inverter. In...
In a DC microgrid (MG) with droop control system only, there exists an inherent deviation between DC bus voltage and its rated value during the steady-state operations. In order to eliminate the inherent deviation, a secondary voltage regulation system (SVRS) based on vanadium redox battery (VRB) storages is proposed in this paper. It adopts double closed loop control strategy coordinating with the...
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