METHOD OF CONVERTING DC VOLTAGE INTO QUASI-SINUSOIDAL VOLTAGE WITH PULSE-WIDTH MODULATION (VERSIONS)

FIELD: electricity. ^ SUBSTANCE: proposed method of converting dc voltage into quasi-sinusoidal voltage with pulse-width modulation can be used in control systems of frequency converters. The conversion method involves matching the positive half-wave of the drive (sinusoidal) signal with the base sa...

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Bibliographische Detailangaben
Hauptverfasser:	NIKITIN SERGEJ ALEKSANDROVICH, CHUBUKOV KONSTANTIN ALEKSANDROVICH, DONSKOJ NIKOLAJ VASIL'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	FIELD: electricity. ^ SUBSTANCE: proposed method of converting dc voltage into quasi-sinusoidal voltage with pulse-width modulation can be used in control systems of frequency converters. The conversion method involves matching the positive half-wave of the drive (sinusoidal) signal with the base saw-tooth signal, and the negative half-wave with the signal of the saw-toothed voltage, which is generated by shifting the base saw-toothed signal in time by a value, calculated in each cycle of the drive signal. ^ EFFECT: increased quality of operation of an electric drive in steady state and transient conditions due to elimination of dc components in the output voltage of the autonomous inverter at subfrequencies. ^ 4 cl, 7 dwg