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| Content Provider | IET Digital Library |
|---|---|
| Author | Toso, Francesco Soricellis, Milo De Bolognani, Silverio |
| Abstract | This paper deals with a novel robust current control scheme for PMSM drives, based on the model predictive control (MPC) theory. It has been designed a simple quadratic formulation of the reference tracking problem in order to compute the optimal commanded voltage. Considering only equality constraints allows the efficient computation of a closed-form solution which solves the minimisation problem. Authors' proposed objective function is extended to include the inequality constraints, such as current and voltage limitations, therefore, the problem indirectly penalises the violation of boundaries through a weighting strategy. However, the controller does not require any calibration effort, maintaining the application suitable for different drive systems. The increased robustness is achieved through the integration of a moving horizon estimation (MHE), which exploits the same explicit formulation obtained for the MPC, but with the objective of estimating the voltage disturbance affecting the machine. The dual estimation problem is directly integrated within the prediction step of the MPC, improving drastically the local accuracy of the nominal model prediction with further advantages in terms of precise reference tracking and disturbance rejection capabilities. The effectiveness of the proposed control is verified by mean of test-bed experiments. |
| Starting Page | 4380 |
| Ending Page | 4385 |
| Page Count | 6 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 17, Jun (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8052 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-01-22 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Closed-form Solution Control of Electric Power System Current Control Disturbance Compensation Disturbance Rejection Capabilities Dual Estimation Problem Electric Current Control Equality Constraint Horizon Estimator Inequality Constraint Minimisation Problem Moving Horizon Estimation MPC Problem Optimal Commanded Voltage Optimal Control PMSM Drive Predictive Control Reference Tracking Problem Robust Control Robust Current Control Scheme Robust Model Predictive Control Sampling Time Stability in Control Theory Voltage Disturbance |
| Content Type | Text |
| Resource Type | Article |
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