Tag Archives: Causes of harmonic distortion of incoming current

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Current control technology of photovoltaic grid-connected inverter, ,
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Power tube switching delay and turn-on voltage drop

The previous analysis only considers the influence of the artificially added dead time on the output voltage of the bridge arm and the incoming current of the bridge arm to prevent the bridge arm from passing through. However, the turn-on and turn-off of actual power devices is not instantaneous, and there is a turn-on voltage […]

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Current control technology of photovoltaic grid-connected inverter, ,
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Influence of low frequency harmonics of grid voltage and dead zone effect

1. The influence of low frequency harmonics of grid voltage The equivalent model of the grid-connected inverter is shown in Figure 1, in which the output voltage uinv of the bridge arm of the inverter is equivalent to a controlled voltage source (the specific form is related to the inverter control). Using the superposition theorem, […]

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