TY - GEN
T1 - Enhanced Bandwidth of Current Loop for Permanent Magnet Synchronous Motor Drives Based on FPGA
AU - Shang, Shuyu
AU - Yang, Ming
AU - Xu, Dianguo
AU - Wang, Pinhe
AU - Lyu, Zekai
AU - Li, Lei
N1 - Publisher Copyright:
© 2018 KIEE EMECS (KIEE Electrical Machinery and Energy Conversion Systems).
PY - 2018/11/27
Y1 - 2018/11/27
N2 - In the field of AC permanent magnet synchronous motor control, the current loop is the innermost ring of the servo control system, and its bandwidth represents the dynamic performance of the control system. The main factors that restrict the current loop bandwidth are digital delay and switching frequency. At present, power devices which can sustain the high switching frequency are expensive and some relative technologies are not yet mature. So the main way of expanding the current loop bandwidth is to reduce digital delay of the control loop. In this paper, Multiple stator current sampling and multiple PWM duty cycle update were achieved in a carrier period without changing the switching frequency. Thereby, with the current loop bandwidth extended, the dynamic performance of the current loop is enhanced. Finally, the simulation results all verify the effectiveness of the algorithm.
AB - In the field of AC permanent magnet synchronous motor control, the current loop is the innermost ring of the servo control system, and its bandwidth represents the dynamic performance of the control system. The main factors that restrict the current loop bandwidth are digital delay and switching frequency. At present, power devices which can sustain the high switching frequency are expensive and some relative technologies are not yet mature. So the main way of expanding the current loop bandwidth is to reduce digital delay of the control loop. In this paper, Multiple stator current sampling and multiple PWM duty cycle update were achieved in a carrier period without changing the switching frequency. Thereby, with the current loop bandwidth extended, the dynamic performance of the current loop is enhanced. Finally, the simulation results all verify the effectiveness of the algorithm.
KW - Current loop bandwidth
KW - Multi-sampling PWM modulation
KW - digital delay
UR - https://www.scopus.com/pages/publications/85060065344
U2 - 10.23919/ICEMS.2018.8549304
DO - 10.23919/ICEMS.2018.8549304
M3 - 会议稿件
AN - SCOPUS:85060065344
T3 - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
SP - 1291
EP - 1294
BT - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st International Conference on Electrical Machines and Systems, ICEMS 2018
Y2 - 7 October 2018 through 10 October 2018
ER -