Precharge soft start circuit suitable for two -way PWM converter of three phase voltage type

The utility model provides a precharge soft start circuit suitable for two -way PWM converter of three phase voltage type, does soft start circuit include first contactor K1, three -phase diode rectification bridge TM, BUCK BOOST lift volt circuit, second contactor K2 and DSP treater, the three -pha...

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Bibliographische Detailangaben
Hauptverfasser:	PAN GUOBING, WANG JIANFENG, ZHANG REN, TANG WENXUAN, HU YATENG
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 utility model provides a precharge soft start circuit suitable for two -way PWM converter of three phase voltage type, does soft start circuit include first contactor K1, three -phase diode rectification bridge TM, BUCK BOOST lift volt circuit, second contactor K2 and DSP treater, the three -phase AC voltage source is connected through first contactor and three -phase diode rectification bridge TM's interchange side, three -phase diode rectification bridge TM's direct current side and BUCK BOOST lift volt circuit BUCK BOOST lift volt circuit is met with second contactor K2, second contactor K2 is connected with direct current end BUS capacitors's both sides, first contactor K1, BUCK controlled end, the second contactor K2 of BOOST lift volt circuit all are connected with the control end of DSP treater. The utility model discloses effectively avoid current rush, the increase of service life of start -up course. 种适用于三相电压型双向PWM变流器的预充电软启动电路，所述软启动电路包括第接触器K1、三相二极管整流桥TM、BUCK-BOOST升降压电路、第二接触器K2和DSP处理器，三相交流电压源通过第接