Title :
Novel modulation strategy for a four-switch three-phase inverter
Author :
Liang, Darwin T W
Author_Institution :
Dept. of Electr. & Electron. Eng., Bradford Univ., UK
Abstract :
This paper presents a novel control switching strategy using direct flux vector modulation implemented in a single phase to three phase converter with only four switches in its DC to AC inversion stage. The modulation strategy maintains a constant circular stator flux by selectively switching among the four different nonzero voltage vectors, with the zero-state generated by turning on two opposing voltage vectors simultaneously. This scheme is implemented in real-time using microcontroller, with simulation and experimental results presented for verification
Keywords :
DC-AC power convertors; bipolar transistor switches; circuit analysis computing; insulated gate bipolar transistors; invertors; microcontrollers; modulation; power bipolar transistors; power semiconductor switches; real-time systems; switching circuits; constant circular stator flux; direct flux vector modulation; four-switch three-phase inverter; real-time microcontroller; selectively switching; single-phase to three-phase converter; switching strategy; Inverters; Microcontrollers; Phase modulation; Pulse generation; Space vector pulse width modulation; Stators; Switches; Switching converters; Topology; Zero voltage switching;
Conference_Titel :
Power Electronics and Drive Systems, 1997. Proceedings., 1997 International Conference on
Print_ISBN :
0-7803-3773-5
DOI :
10.1109/PEDS.1997.627494
