A comparison of basic properties of the integrated and cascade matrix-reactance frequency converters

The paper deals with three-phase AC/AC frequency converters without DC storage. The integrated and cascade matrix-reactance frequency converters (MRFC) are analysed and discussed. The integrated MRFC are based on PWM AC unipolar matrix-reactance choppers (MRCs) with integrated voltage or current source matrix converter (MC). In the second solution of the MRFC the cascade connection of the MRC with MC is used. Results of the theoretical analysis and simulation test results are taking into account in order to comparison the steady state properties of mentioned converters. Experimental test results of ca 1 kVA laboratory models are presented to validate the theoretical and simulation ones.