Conclusion
In this paper, a new method for controlling the amplitude and frequency of the sinusoidal output voltages from the PWM inverter has been presented. By using modulating waves of constant amplitudes on angles of tt/3, the following advantages can be obtained:
-
—Reducing the switchings number in the PWM inverter by 33%;
-
—The fundamental amplitude of the output line voltage can reach a maximum value equal to the 1.1027 · Vd voltage;
-
—The proposed version can be matched better to digital methods for the control of three-phase inverters as compared to the classical versions based on the addition of certain components on the 3rd harmonic.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Schönung A, Stemmler H (1964) Static frequency changers with subharmonic control in conjunction with reversable variable speed ac drives. Brown Boveri Rev. 51(8/9): 555–577
Alexa D, Prisacaru V (1973) Selbstgeführte Stromrichter für Umkehrantriebe, die keine Blindleistung des Speisenetzes benötigen Elektrotechnische Zeitschrift — A, no. 3: 158–161
Patel HS, Hoft RG (1973) Generalized techniques of harmonic elimination and voltage control in thyristor inverters: Part I - Harmonie elimination. IEEE Trans, on Industry Appl. IA-9(3): 310–317
Depenbrock M (1977) Pulse width control of a 3-phase inverter with nonsinusoidal phase voltages. IEEE-ISPC Conf. Rec: 399–403
Alexa D, Prisacaru V (1977) Statische Frequenzumrichter für Speisung Wechselstrommotoren auf Grund Sinusförmigen Impulsamplitudenmodulation der Ausgangsspannung. Elektrotechnische Zeitschrift — A, 4: 294–299
Boost MA, Ziogas PD (1988) State of the art carrier PWM techniques: A critical evaluation. IEEE Trans. on Industry Appl. 24(2): 271–280
Holtz J (1994) Pulse width modulation for electronic power conversion. Proceedings of the IEEE 82(8): 1194–1213
Buja G, Indri G (1975) Improvement of pulse width modulation techniques. Archiv für Elektrotechnik 57: 281–289
Bowes SR, Mech MI, Midoun A (1985) Suboptimal switching strategies for microprocessor-controlled PWM inverter drives. IEE Proceedings Part B 132(3): 133–148
Kwon Soon H, Choy Ick, Kim KH, Mok HS (1996) A new direct digital PWM technique for microprocessor-based PWM inverters. 27th Annual IEEE Power Electronics Specialists Conference, PESC ’96, Record vol. II: 1300–1304
Hava AM, Kerkman RJ, Lipo TA (1988) Carrier-based PWM-VSI overmodulation strategies: Analysis, comparison, and design. IEEE Trans, on Power Electronics 13(4): 674–689
Venkataramanan G, Divan M (1993) Pulse width modulation with resonant DC link converters. IEEE Trans, on Industry Appl. 29(1): 113–120
Alexa D, Neacsu D (1994) PAM GTO inverter with quasi resonant DC link. Archiv für Elektrotechnik 77(5): 351–359
Neacsu D, Alexa D (1996) Analysis of high-frequency PWM techniques suitable for resonant inverters. European Transactions on Electrical Power Engineering (ETEP) 6(3): 183–188
Alexa D (1995) Resonant circuit with constant voltage applied on the clamp capacitor for zero voltage switchings of power converters. Electrical Engineering (Archiv für Elektrotechnik) 78(3): 169–174
Alexa D, Ionescu F, Neacsu D, Radomirescu B (1998) Resonant DC-AC-converter with low-ripple output voltage. European Transactions on Electrical Power Engineering (ETEP) 8(5): 397–403
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Alexa, D. PWM technique with partially constant modulating waves. Electrical Engineering 82, 99–104 (1999). https://doi.org/10.1007/s002020050081
Received:
Issue Date:
DOI: https://doi.org/10.1007/s002020050081