An Efficient Cascade H-Bridge Multilevel Inverter for Power Applications
نویسندگان
چکیده
Multilevel inverter as compared to single level inverters have advantages like minimum harmonic distortion, reduced Electro Magnetic Interference (EMI/RFI) generation and can operate on several voltage levels. In this paper a new topology of cascaded multilevel inverter using reduced number of switches, resulting in higher output voltage levels is proposed. There are five series connected H-bridges and the DC voltage is given in the ratio n: n: n: 2n: 10n. The output voltage having 123 levels is obtained (61 positive voltage levels, 61 negative voltage levels and zero voltage level). The reduced Total Harmonic Distortion (THD) makes them useful for electric vehicle, flexible AC transmission and has the potential for various power applications. The proposed topology results in reduction of installation area, cost and has simplicity of control system.
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