Title :
Study on a modified multilevel cascade inverter with hybrid modulation
Author :
Zhang, Jie ; Yunping Zou ; Zhang, Xian ; Ding, Kai
Author_Institution :
Dept. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Traditional multilevel inverters in high voltage high power applications have some problems associated with their low frequency switching which produces high harmonic distortion. To solve the problem, this paper presents a topology of a modified multilevel cascade voltage source inverter (VSI) with different DC voltage sources. Also, the modified multilevel cascade VSI using H-bridge is modeled and analyzed with circuit DQ transform in detail. To implement the novel multilevel Inverter, a hybrid modulation strategy is presented through theoretical analysis. The simulation and experimental results are given to verify the feasibility.
Keywords :
DC-AC power convertors; bridge circuits; harmonic distortion; invertors; modulation; power conversion harmonics; switching circuits; DC voltage sources; H-bridge; VSI; circuit DQ transform; harmonic distortion; high voltage high power applications; hybrid modulation; low frequency switching; modified multilevel cascade inverter; voltage source inverter; AC generators; Character generation; Circuit analysis; Circuit simulation; Circuit topology; Frequency synthesizers; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation inverters; Voltage;
Conference_Titel :
Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on
Print_ISBN :
0-7803-7233-6
DOI :
10.1109/PEDS.2001.975343
