Voltage compensating method for converter

• Main Authors: KONISHI, YOSHIHIRO, HUANG, SHU-SYUAN
• Format: Patent
• Language: Chinese; English
• Published: 01.05.2016
• 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

A voltage compensating method is applied to a converter for converting a direct voltage into an alternating voltage. The converter includes a first switch module, a second switch module, and an inductor. The method includes the following steps. In a first time period, the converter measures a first current value of the inductance. According to the first current value, a second current value and a third current value are computed. According to the polarities of the first current value, the second current value, and the third current value, an output mode of the converter after the first time period is determined. The output mode indicates a voltage compensating formula. According to the voltage compensating formula, the first current value, and the second current value or the third current value, a voltage compensating quantity is computed. In a second time period, according to the voltage compensating quantity, a switching timing of the first switch module or the second module is adjusted.