Title :
Dsp based implementation of space vector pulsewidth modulation in the overmodulation range
Author :
Kong, Weitao ; Zhang, Qingfan ; Zhang, Chenghui
Author_Institution :
Sch. of Electr. & Autom. Eng., Changshu Inst. of Technol., Changshu, China
Abstract :
The principle of space vector pulsewidth overmodulation strategies is developed from conventional space vector modulation scheme and the corresponding algorithm based on the representation of the switching vectors in the complex plane is proposed. The overmodulation range is divided into two modes depending on the modulation index, and the two modes are distinguished by the holding angle at the vertices of the hexagon. The method is described and analyzed, and the experimental results are presented in overmodulation mode I. The solution increases the output voltage of inverter in a continuously controllable fashion.
Keywords :
PWM invertors; switching convertors; vectors; DSP based implementation; complex plane; continuously controllable fashion; conventional space vector modulation scheme; hexagon; holding angle; inverter; modulation index; output voltage; overmodulation mode; overmodulation range; space vector pulsewidth modulation; space vector pulsewidth overmodulation strategy; switching vectors; vertices; Aerospace electronics; Digital signal processing; Educational institutions; Inverters; Publishing; Pulse width modulation; overmodulation; space vector modulation; voltage inverters; voltage utilization;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5777931
