Abstract
This paper presents and experimentally validates a new control scheme for electrical drive systems, named cascaded predictive speed and current control. This new strategy uses the model predictive control (MPC) concept. It has a cascaded structure like that found in field-oriented control or direct torque control. Therefore the control strategy has two loops, external and internal, both implemented with model predictive control. The external loop controls the speed, while the inner loop controls the stator currents. The inner control loop is based on Finite Control Set Model Predictive Control, and the external loop uses MPC deadbeat, making full use of the inner loop's highly dynamic response. Experimental results show that the proposed strategy has a performance that is comparable to the classical control strategies but that it is overshoot-free and provides a better time response.
Original language | English |
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Article number | 7460935 |
Pages (from-to) | 1059-1067 |
Number of pages | 9 |
Journal | IEEE Transactions on Energy Conversion |
Volume | 31 |
Issue number | 3 |
DOIs | |
Publication status | Published - Sept 2016 |
Externally published | Yes |
Keywords
- electric machines
- Kalman filters
- Model predictive control (MPC)
- variable speed drives