Abstract
The dynamic response characteristics of current loop in vector control system is closely related to the realization of vector control strategy. In the system model of multiple motors connected in series (which consists of coupled section, uncoupled section and feeder cable), the inductance and resistance of uncoupled section and feeder cable are taken into consideration in this paper. Due to the ignoring of current coupling problem of d-q axis in traditional PI current regulator, the dynamic performance of the system is poor. To solve this problem, a modified PI regulator based on voltage feed-forward decoupling is applied to build the control system of permanent magnet linear synchronous motor (PMLSM). The model of traditional PI current regulator and the model of modified PI current regulator are built respectively and compared with each other in Matlab/Simulink. The simulation results verify the correctness and effectiveness of PI current regulator with voltage feed-forward decoupling, and indicate that this improved control system has better dynamic and static characteristic than traditional control system.
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Acknowledgements
This work was supported by National Key R&D Program of China (2016YFB1200601)
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Li, Z., Zhang, R., Du, Y., Ge, Q. (2018). Research on Vector Control of Long-Primary Permanent Magnet Linear Synchronous Motor Based on Voltage Feed-Forward Decoupling. In: Jia, L., Qin, Y., Suo, J., Feng, J., Diao, L., An, M. (eds) Proceedings of the 3rd International Conference on Electrical and Information Technologies for Rail Transportation (EITRT) 2017. EITRT 2017. Lecture Notes in Electrical Engineering, vol 482. Springer, Singapore. https://doi.org/10.1007/978-981-10-7986-3_56
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DOI: https://doi.org/10.1007/978-981-10-7986-3_56
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