An Improved Model Predictive Control Strategy to Reduce Common-Mode Voltage for Two-Level Voltage Source Inverters Considering Dead-Time Effects
Authors:
- Leilei GuoLGLeilei Guo
- Nan JinNJNan Jin
- Chun GanCGChun Gan
- Lie XuLXLie Xu
- Qunjing WangQWQunjing Wang
- 20 July 2018
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industrial Electronics
- Vol. 66 (5) , 3561-3572
Abstract
To reduce the common-mode voltage (CMV) and eliminate the CMV spikes for 2-level voltage source inverters (2L-VSIs), an improved model predictive control (MPC) based CMV reduction method is proposed considering dead time effects. First, an improved voltage vector (VV) preselection strategy is proposed to reduce the CMV spikes caused by the dead time. Second, a new hybrid VV preselection strategy based on a delay compensation strategy and a modified current sector division strategy is proposed to completely eliminate the CMV spikes. As the proposed hybrid VV preselection based MPC strategy makes full use of the six nonzero VVs of the 2L-VSI, the current total harmonic distortions and ripples are reduced. The simulation and experiments are carried out to verify the effectiveness of the proposed strategy.Keywords
Funding Information
- National Natural Science Foundation of China (51707176, 51607159, U1604136)
- High School Key Research Program of Henan Province (18A470020)
- Scientific and Technological Project in Henan Province (182102210612)
- Open Program of the National Engineering Laboratory of Energy-Saving Motor and Control Technique of Anhui University (KFKT201610)
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