Zero-voltage soft-switching single-phase boost inverter and control method
The invention belongs to the technical field of inverters, and discloses a zero-voltage soft-switching single-phase boost inverter and a control method. The inverter comprises two auxiliary switch tubes, a first inductor L1, a first bridge arm, a second bridge arm and an auxiliary branch, wherein th...
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| creator | QIN LING FU QIKANG TIAN MIN WANG YAFANG QIAN TIANHONG XU XING MA YU'ANG GAO JUAN DUAN BINGYING SHEN JIAPENG ZHOU LEI |
| description | The invention belongs to the technical field of inverters, and discloses a zero-voltage soft-switching single-phase boost inverter and a control method. The inverter comprises two auxiliary switch tubes, a first inductor L1, a first bridge arm, a second bridge arm and an auxiliary branch, wherein the two auxiliary switch tubes are conducted in a complementary mode, and the auxiliary branch is composed of a first direct-current bus capacitor Cdc1, a second direct-current bus capacitor Cdc2 and a second inductor L2. In a positive half power frequency period, the first bridge arm works in an SPWMmode, and the second bridge arm works in a PWM mode; and in a negative half power frequency period, the working states of the first bridge arm and the second bridge arm are exchanged. According to the inverter, zero-voltage soft switching of two bridge arm lower tubes and one bridge arm upper tube is realized, the problem of serious reverse recovery loss of an anti-reverse diode in a traditionalintegrated inverter is eff |
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The inverter comprises two auxiliary switch tubes, a first inductor L1, a first bridge arm, a second bridge arm and an auxiliary branch, wherein the two auxiliary switch tubes are conducted in a complementary mode, and the auxiliary branch is composed of a first direct-current bus capacitor Cdc1, a second direct-current bus capacitor Cdc2 and a second inductor L2. In a positive half power frequency period, the first bridge arm works in an SPWMmode, and the second bridge arm works in a PWM mode; and in a negative half power frequency period, the working states of the first bridge arm and the second bridge arm are exchanged. 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| subjects | 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 |
| title | Zero-voltage soft-switching single-phase boost inverter and control method |
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