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Title: Improved model predictive control of permanent magnet synchronous motor with duty ratio optimization and cost function correction
Authors: Liu, M 
Hu, J 
Chan, KW 
Keywords: Cost function correction
Duty ratio optimization
Model predictive control (MPC)
Permanent magnet synchronous motor (PMSM)
Issue Date: 2017
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: 2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017, 2017, 8056312 How to cite?
Abstract: This paper presents an improved model predictive control (MPC) for permanent magnet synchronous motor (PMSM) drives. The proposed MPC is different from the conventional MPC in applying two voltage vectors in every control period. The duty ratio is firstly calculated using a simple but effective method with the consideration of the one-step delay. The cost function is then modified by incorporating the duty ratio, thus to calculate the optimal voltage vector applied in every sampling period. Based on the improved MPC, the elimination of weight factor k1 and the compensation of stability factors are further proposed to further correct the cost function. Test results show that the proposed control strategy contributes to lower torque and flux ripples, faster dynamic response, better start-up response compared to the conventional MPC.
Description: 20th International Conference on Electrical Machines and Systems, ICEMS 2017, Sydney, Australia, 11-14 August, 2017
ISBN: 9781538632468
DOI: 10.1109/ICEMS.2017.8056312
Appears in Collections:Conference Paper

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