The Research Of Design Of Utility Mull-level High Voltage Transducer And Simulation

Frequency Control is recognized as the most promising way of timing because of its high efficiency, high power factor, outstanding capability of timing and open-stop, as well as lots of virtue all over the world. With the development of inverter technology low-voltage variable frequency has had formed configuration in the topology and high-performance control theory, even we have applied in the practice and develop a lot. But high-voltage inverter has no unified field of topology, no matter what we look from methods of control and the power devices to rectifier and athwart. They have no the same. With high pressure VVVF increasingly extensive application of high-power and high-voltage electrical energy-saving equipment requirements and enhance converter performance requirements, making the high voltage inverter technology to be continuously developed. Developing technology of inverter become an important issues on save energy, improving efficient and performance on high-power electromotor.Based on analysis topology and its principles about the two main high-voltage inverter, educe their respective advantages and disadvantages of them and select cascade multilevel power inverter as main circuit structure. Follow from the high-pressure multi-level main configuration analyse the harmonic of the grid fan-out and the effect of harmonic on inside power transmission. And then research control mode of the multi-level high voltage inverter. Put forward Space Vector Modulation methods proposed to achieve good input and output results of high-voltage converte.