Twelve-phase permanent magnet propulsion converter

Abstract

The invention provides a twelve-phase permanent magnet propulsion converter. The twelve-phase permanent magnet propulsion converter is characterized by comprising twelve same standard inverter modules, twelve same filters and two same standard brake modules, wherein the twelve standard inverter modules and the two standard brake modules are evenly distributed in two channels; three-phase AC is input through a rectifier transformer and an equilibrium reactor and DC voltage is output to common DC busbars in the two channels respectively; the standard inverter modules and the standard brake module in each channel are connected to the corresponding common DC busbar in parallel; an output end of each standard inverter module is correspondingly connected to an input end of one filter; and the output end of each filter is correspondingly connected to one phase of start winding of a motor. The 1.8MW/twelve-phase permanent magnet propulsion converter provided by the invention is high in integrated modularization degree, low in noise, good in reliability and good in maintainability, and is used for directly driving low-noise operation of a permanent magnet propulsion motor of a ship.

Description

Technical field [0001] The invention belongs to the field of medium and high power electric energy conversion, and specifically relates to a 1.8 MW / twelve-phase permanent magnet propulsion frequency converter based on medium and high power power electronic switching devices. Background technique [0002] As the third revolution of the world's ship power platform, ship integrated electric propulsion technology has become a hot spot of common concern and research by all countries in the world, and represents the future development direction of ship power technology. The ship’s integrated power system integrates power generation, electric propulsion, ship-borne weapon power supply and daily power consumption. Through unified management and dispatch of power distribution, the power utilization rate is high, which effectively improves the combat effectiveness and vitality of the ship. As the key technology of the integrated power system, marine electric propulsion technology has the a...

AI Technical Summary

Problems solved by technology

Compared with the development of foreign high-power frequency conversion speed regulation technology, my country's high-power high-performance frequency conversion speed regulation technology is still in the development stage, the theoretical research is more active, but the actual engineering development is weak, especially in the comprehensive performance, reliability and power density of the device. still face many technical bottlenecks

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