Three-phase rectifier control method and device and three-phase rectifier system

The invention relates to a three-phase rectifier control method and device and a three-phase rectifier system.In the control process of a three-phase rectifier, the phase with the maximum or minimum instantaneous value in three phases is used as a standard, three-phase modulation waves are injected...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN LUMING, CHEN TONGHAO, LIU HUIYONG, TIAN QIN, HUANG LIJIE, YUAN PAN
Format:	Patent
Sprache:	chi ; 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 invention relates to a three-phase rectifier control method and device and a three-phase rectifier system.In the control process of a three-phase rectifier, the phase with the maximum or minimum instantaneous value in three phases is used as a standard, three-phase modulation waves are injected after compensation is conducted in an output capacitor neutral-point balance mode, the power factor value of the three-phase rectifier is increased, and the power factor of the three-phase rectifier is increased. The three-phase rectifier system is enabled to operate under a unit power factor, so that the utilization rate of direct-current voltage is improved, and frequent actions of a switch in the three-phase rectifier are reduced. 本发明涉及一种三相整流器控制方法、装置及三相整流器系统，在三相整流器的控制过程中，利用三相中瞬时值最大或最小的一相作为标准，采用输出电容中点平衡方式进行补偿后对三相调制波注入，提高了三相整流器的功率因数值，使三相整流系统在单位功率因数下运行，从而提高了直流电压利用率，降低三相整流器中开关的频繁动作。