Voltage compensating method for converter
A voltage compensating method is applied to a converter for converting a DC voltage into an AC voltage. The converter includes a first switch module, a second switch module, and an inductor. In a first dead time period, a first current value related to the inductor is detected. According to the firs...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | A voltage compensating method is applied to a converter for converting a DC voltage into an AC voltage. The converter includes a first switch module, a second switch module, and an inductor. In a first dead time period, a first current value related to the inductor is detected. According to the first current value, a second current value and a third current value related to the inductor are calculated. According to polarities of the first, second and third current values, an output mode of the converter indicating a voltage compensation model after the first dead time period is judged, and each output mode indicates a voltage compensation model. According to the voltage compensation model indicated by each output mode, the first current value, and the second current value or the third current value, a voltage compensation value is calculated. In a second dead time period, a switching time for the first switch module and the second switch module is adjusted according to the voltage compensation value. |
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