Machine-Converter Voltage Source for Autonomous Systems of Distributed Power Supply

Abstract

The paper presents electric Machine-Converter Voltage Source (MCVS) for systems of distributed power supply with shaping output voltage in an electric machine (generator). The MCVS consists of electric machine and a cycloconverter that has three-phase bridge circuit. Both synchronous generator and asynchronous exciter, which are located in one housing, operate as electric modulation generator. Functional diagram of complex MCVS, where the output voltage is stabilized by simultaneous or separate use of several control channels. We analyzed output voltages of MCVS and dependences of non-sinusoidality and distortion factors on ratio rotational speed of generator to output voltage frequency of MCVS for various amplitude modulation indexes and control modes of cycloconverter.

Keywords

• Machine-converter voltage source
• autonomous distributed power supply system
• output voltage envelope
• cycloconverter
• harmonic analysis
• distortion factor
• control optimization