Three-level active triple harmonic injection matrix converter with T-shaped structure
A matrix converter and sub-harmonic technology, applied in the direction of conversion of AC power input to AC power output, conversion of AC power input to DC power output, output power conversion device, etc., can solve the problem of high voltage and power density of main switching devices and low reliability, energy one-way flow and other issues
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[0038] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0039] In order to overcome the disadvantages of unidirectional flow of energy, poor input current quality, low power density and reliability in the prior art, and the existence of dual-level active third harmonic injection matrix converters, the harmonics of the output voltage are too large at the same time The problem. , a T-shaped three-level active third harmonic injection matrix converter exists in the matrix converter, such as figure 1 As shown, including: rectification stage circuit, third harmonic injection circuit, inverter stage circuit and input LC filter;
[0040] The input end of the rectification stage circuit is connected to the three-phase input power sup...
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