A study on the parameter design method based on photovoltaic inverter for flying capacitor Boost circuit
This article conducted a research study on the optimal parameter calculation of the boost circuit based on the flying-capacitor for the step-up conversion in series-connected photovoltaic (PV) inverters with a voltage rating of 1 500 V. The input and output parameters of the designed flying-capacito...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2023-09-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2023.05.020 |
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| Summary: | This article conducted a research study on the optimal parameter calculation of the boost circuit based on the flying-capacitor for the step-up conversion in series-connected photovoltaic (PV) inverters with a voltage rating of 1 500 V. The input and output parameters of the designed flying-capacitor boost circuit were determined based on the specifications of mainstream PV panels. According to the working principle of the flying-capacitor boost circuit, the selection and verification calculation of power semiconductor modules were carried out. Subsequently, the minimum input filtering inductance, input filtering capacitor, flying capacitor, and other parameters were calculated at the circuit's operating limits. Dynamic control strategies were proposed. Finally, through simulations, the effectiveness and accuracy of the parameter design method for the main circuit based on the flying-capacitor boost circuit were demonstrated. This research study provides a design method for the step-up circuit of series-connected inverters with a voltage rating of 1 500 V. |
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| ISSN: | 1000-128X |