Title :
SVM algorithm of three-level NPC inverter
Author :
Cheng, Shanmei ; Liu, Yajun ; Wu, Bing
Author_Institution :
Dept. of Control Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
On the basis of presenting the principles of space vector modulation (svm) of three-level neutral point clamped (NPC) inverter, an approach to implementation of SVM is proposed. The dwell times of vectors are calculated according to the volt-second balancing. A triangle is adopted to compare with three switching points. The three switching points are determined by the dwell times. According to the comparing results and the location of the triangles that the reference vector falls in, the switching sequences can be arranged. The control of the neural point voltage is realized by adjusting the switching points. The simulation results verify that the proposed approach is correct and feasible.
Keywords :
invertors; switching convertors; dwell times; reference vector; space vector modulation; switching sequences; three switching points; three-level neutral point clamped inverter; volt-second balancing; Digital signal processing; Diodes; Microcontrollers; Pulse width modulation converters; Pulse width modulation inverters; Space technology; Space vector pulse width modulation; Support vector machines; Switching circuits; Voltage;
Conference_Titel :
Industrial Electronics and Applications, 2008. ICIEA 2008. 3rd IEEE Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-1717-9
Electronic_ISBN :
978-1-4244-1718-6
DOI :
10.1109/ICIEA.2008.4582907