Decoupled Predictive Current Control With Duty-Cycle Optimization of a Grid-Tied Nine-Switch Converter Applied to an Induction Generator

Computationally-Efficient Model Predictive Control of Dual-Output Multilevel Converter in Hybrid Microgrid

“…In doing so, controller's computational burden was reduced and need for weighting factor estimation was eliminated. A similar approach using PCC-D with duty cycle optimization for NSDO converter was reported in [30]. Note that the PCC-D neglected 12 active voltage vector pairs and always forced null vector to either of the output ports during the operation.…”

Improved Modulated Model Predictive Control Technique for PMSM Drives Using the Vector Projection

“…To address the problem of significant current ripple, some scholars have proposed a duty cycle MPC (DCMPC) method that uses a duty cycle of one effective vector and one zero vector within a control cycle [12][13][14]. Instead of using only a zero vector as the second voltage vector, a generalized double vectors MPC (DMPC) technique is proposed, where the selection of the second vector is not fixed as a zero vector but includes the other six vectors apart from the first effective vector [15][16][17][18].…”

Multivariable control of multilevel converters in microgrid

“…The FCS-MPC identifies the optimum converter switching signals by minimizing the cost function every sampling period; thereby regulating the grid currents to their desired references. The FCS-MPC implementation for a NSDO converter interfacing grid and squirrel cage induction generator through its output ports is reported in [80]. Separate cost function based on current error for each output port is minimized sequentially to have an independent control of the grid and generator.…”

“…Since the ESD current and FC voltage are the control objectives, a cost function based on ESD current error and FC voltage error with pre-defined weighting factor is considered. However, the current references for FCS-MPC in [77][78][79][80][81] is generated by a voltage control loop (outer loop) based on a traditional PI controller. As discussed previously, the design of the gain parameters for the voltage control loop is challenging as the converter with FCS-MPC operates at a variable frequency.…”