PWM rectifier bus-bar voltage increasing device

The utility model relates to a PWM rectifier bus-bar voltage increasing device, which belongs to the technical field of PWM rectifiers. The utility model is composed of a switching device and a rectifier, wherein both input ends of the switching device are respectively connected with any two ends of...

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Bibliographische Detailangaben
1. Verfasser:	SHUNQUAN,ZHANG HU
Format:	Patent
Sprache:	eng
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:	The utility model relates to a PWM rectifier bus-bar voltage increasing device, which belongs to the technical field of PWM rectifiers. The utility model is composed of a switching device and a rectifier, wherein both input ends of the switching device are respectively connected with any two ends of a three-phase input of the PWM rectifier, and both output terminals of the switching device are respectively connected with an input end of the rectifier. A positive pole of an output end of the rectifier is connected with a positive bus-bar which is arranged at the front of a capacitance, and a negative pole is connected with a negative bus-bar which is arranged at the front of the capacitance. After the device of the utility model is additionally arranged, the fluctuation of bus-bar voltage is relatively reduced before and after a rectification system does PWM rectification, and starting-up becomes easy. The capacitance can not result in greater impact, the failure rate is reduced and the reliability is increased.