The Modulation And Realization Of Three-Level Inverter In SVPWM

With coming into the 21st century, more and more country will pay attention to the exploitation and utilization of green energy sources. In my paper will discuss the three-level inverter which has been widely used in power electronics, this paper make ideal on the actuality of three-level inverter through reading lots of reference papers. The basic structure will be researched including SVPWM modulation strategy, midpoint imbalance and the realization of SVPWM modulation strategy.The basic theory on three-level inverter will been firstly analyzed. The representative topology, modulation strategy and electron apparatus are compared.This paper is concentrated on SVPWM modulation strategy used in three-level inverter. Two SVPWM modulations are introduced ,which are the tradition modulation and the new modulation using easily for mutil-lever.The fluctuation of the neutral-point occurring in the three-lever inverter is discussed. Two elimination means are adopted which are six areas small vector distribution and checking current immediately.The realization on three-level inverter SVPWM modulation strategy will be deeply analyzed and three means will be enumerated. This paper discuss the DSP-FPGA combination meansAt last the summarization and expectation on this topic will been lied.