Injection current control device of hybrid active third harmonic injection matrix converter
A matrix converter and current injection technology, which is applied in the direction of conversion of AC power input to AC power output, conversion of AC power input to DC power output, and output power conversion device, which can solve the problem of out-of-control injection current and input-side oscillation instability , affecting the safe operation of the system, etc.
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[0029] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0030] This application discloses a hybrid active third harmonic injection matrix converter injection current control device, please refer to image 3 and 4 , the hybrid active third harmonic injection matrix converter includes a three-phase AC power supply, a voltage selector (IVS), a current-source inverter (CSI) and a three-phase AC load, and the three-phase AC power supply U sa , U sb , U sc Connected to the three-phase input terminal of the voltage selector, the three-phase AC power supply and the voltage selector usually also include an input filter composed of an inductor and a capacitor. The voltage selector mainly includes a rectification stage and three bidirectional switches. The rectification stage includes three bridge arms composed of fully controlled devices, and the two ends respectively lead to the maximum phase x termina...
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