1. Multifactorial Prediction Errors Analysis and a Feedback Self-Correction on Model Predictive Control for the Three-Phase Inverter.
- Author
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Wang, Yingjie, Wang, Chao, Zeng, Wei, and Bai, Feiying
- Subjects
ROBUST control ,PREDICTIVE control systems ,ELECTRIC inverters ,DISCRETIZATION methods ,SAMPLING errors ,PREDICTION models ,THREE-phase alternating currents - Abstract
To solve the problem of poor robustness due to the high dependence of model predictive control (MPC) on the three-phase inverter model, the influence mechanism of the mismatch of circuit parameters R and L, the model discretization error, and sampling errors on MPC prediction error are analyzed in this paper. A feedback self-correction is proposed, which the next current errors are predicted and used to modify the model, based on the previous prediction errors. This proposed method involves simple structure and a small amount of calculation. Steady-state effects of the proposed method are quantized to prove a good inhibitory ability on multifactorial prediction errors. Finally, experimental results in a three-phase inverter are presented to support the theoretical analysis and demonstrate the feasibility of the proposed method. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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