TY - GEN
T1 - Simplification of Model Predictive Control for Modular Multilevel Converter through Direct Voltage Level Selection
AU - Chen, Xingxing
AU - Liu, Jinjun
AU - Ouyang, Shaodi
AU - Song, Shuguang
AU - Luo, Rui
N1 - Publisher Copyright:
© 2018 IEEJ Industry Application Society.
PY - 2018/10/22
Y1 - 2018/10/22
N2 - Model predictive control (MPC) method has attracted the attention of researchers for modular multilevel converter (MMC). However, the computation burden of the controller can be very high by using a direct MPC (D-MPC) method, especially when the submodule (SM) number of MMC becomes large. A stepwise indirect MPC (SI-MPC) strategy is first presented in this paper combined with capacitor voltage sorting algorithm to reduce the considered switching states. Ac side current control and circulating current control are separated of SI-MPC. The capacitor voltage ripple is neglected in the discrete-time mathematical model of MMC with SI-MPC, therefore, a direct voltage level selection (DVLS) method can be further derived with the simplification of SI-MPC. The current control process of MMC is implemented by comparing the current control error with the predesigned error bands. Simulation results verified the theoretical analysis and effectiveness of the proposed methods.
AB - Model predictive control (MPC) method has attracted the attention of researchers for modular multilevel converter (MMC). However, the computation burden of the controller can be very high by using a direct MPC (D-MPC) method, especially when the submodule (SM) number of MMC becomes large. A stepwise indirect MPC (SI-MPC) strategy is first presented in this paper combined with capacitor voltage sorting algorithm to reduce the considered switching states. Ac side current control and circulating current control are separated of SI-MPC. The capacitor voltage ripple is neglected in the discrete-time mathematical model of MMC with SI-MPC, therefore, a direct voltage level selection (DVLS) method can be further derived with the simplification of SI-MPC. The current control process of MMC is implemented by comparing the current control error with the predesigned error bands. Simulation results verified the theoretical analysis and effectiveness of the proposed methods.
UR - https://www.scopus.com/pages/publications/85057301872
U2 - 10.23919/IPEC.2018.8506670
DO - 10.23919/IPEC.2018.8506670
M3 - 会议稿件
AN - SCOPUS:85057301872
T3 - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
SP - 3129
EP - 3133
BT - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Y2 - 20 May 2018 through 24 May 2018
ER -