@article{MTMT:2660503,
	title = {A novel approach in studying the effects of subharmonics on ultrahigh-speed AC motor drives},
	url = {https://m2.mtmt.hu/api/publication/2660503},
	author = {Járdán, Rafael Kálmán and Stumpf, Péter Pál and Bartal, Péter and Varga, Zoltán and Nagy, István},
	doi = {10.1109/TIE.2010.2098353},
	journal-iso = {IEEE T IND ELECTRON},
	journal = {IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS},
	volume = {58},
	unique-id = {2660503},
	issn = {0278-0046},
	year = {2011},
	eissn = {1557-9948},
	pages = {1274-1281}
}

@inproceedings{MTMT:2661916,
	title = {Novel voltage spectra investigation of space vector modulation technique},
	url = {https://m2.mtmt.hu/api/publication/2661916},
	author = {Halász, Sándor and Varjasi, István and Zakharov, A},
	booktitle = {IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society},
	doi = {10.1109/iecon.2003.1280668},
	unique-id = {2661916},
	abstract = {In the inverter-fed ac drives the space vector modulation technique is the most popular and wide spread one since it produces a high quality inverter-fed ac drive especially for low and middle amplitudes of motor voltages. For realization of the space vector PWM usually two different PWM methods can be applied. This paper deals with the analysis and comparison of voltage spectra of these methods and the derivation of the analytical equations of motor voltage harmonics for these PWM methods. It is shown that for the infinite value of the sampling frequency all realization methods produce the same voltage spectrum which is characterized by the relatively simple equation. This expression also ensures an accurate computation of voltage, current and torque harmonics for the relatively low value of the sampling frequency.},
	keywords = {harmonic amplitudes; natural and regular PWMs; space vector PWM},
	year = {2003},
	pages = {2660-2665}
}

@article{MTMT:2661922,
	title = {Two-phase modulation technique for three-level inverter-fed AC drives},
	url = {https://m2.mtmt.hu/api/publication/2661922},
	author = {Halász, Sándor and Huu, BT and Zakharov, A},
	doi = {10.1109/41.887947},
	journal-iso = {IEEE T IND ELECTRON},
	journal = {IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS},
	volume = {47},
	unique-id = {2661922},
	issn = {0278-0046},
	abstract = {Two-phase dipolar and unipolar modulation techniques for three-level three-phase inverters are suggested and compared with conventional three-phase pulsewidth modulation (PWM) techniques. Two-phase PWMs with 60 degrees (0 degrees and +/-30 degrees shift) and 120 degrees cycles are investigated from the point of view of harmonic losses, motor voltage spectra, and torque pulsations. It is shown that two-phase dipolar PWMs have no advantages in comparison with three-phase PWMs, while two-phase unipolar PWMs-in contrast with three-phase PWMs-considerably decrease the motor harmonic losses and torque pulsations in the whole motor voltage region. At the same time, the inverter neutral point control requires reversing to three-phase PWM technique for the duration of the control.},
	keywords = {SYSTEM; AC motor drives; PWM; three-level inverters; pulsewidth modulation},
	year = {2000},
	eissn = {1557-9948},
	pages = {1200-1211}
}