Abstract
This manuscript presents short survey of novel methods and algorithms of alternative synchronous space-vector modulation elaborated for scalar control of power converters and induction motor drives for transport systems. It includes both description of peculiarities of this new modulation strategy, and examples of its development, modification, and dissemination for basic topologies of three-phase, five-phase, and six-phase systems (based on two-, three-and four modulated inverters) for electrified transport. These methods and techniques of synchronous pulsewidth modulation (PWM) allow providing continuous synchronization and waveform symmetry of the phase and line voltages of ac drives, with minimization of undesirable subharmonics in spectra of voltage and current, and also with minimization of undesirable common-mode voltage in traction drive systems.
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