Abstract
This paper proposes a non-isolated medium-voltage DC-DC converter with high step-up ratio. It aims to interconnect the low-voltage (LV) generation unites and medium-voltage (MV) power-collecting grid in DC renewable system. The proposed DC-DC converter is composed by a switch network and a few cells. The switch network alternatively configures the cells in parallel connection for charging from low-voltage input side (VL) and in series connection for discharging to high-voltage output side (VH). This helps step up the low generation-unite voltage to power-collecting-grid level. Meanwhile, the embedded cells in converter possess voltage adjusting ability, which enables the immediate change of output voltage. As compared to other megawatt-class non-isolated DC-DC converter, the proposal not only achieve high step-up ratio, but also integrates the capabilities of output voltage modulation and DC fault blocking. The feasibility of the proposed DC-DC converter is verified by simulations performed in MATLAB/SIMULINK.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781728118420 |
| DOIs | |
| State | Published - Jun 2019 |
| Externally published | Yes |
| Event | 20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019 - Toronto, Canada Duration: 17 Jun 2019 → 20 Jun 2019 |
Publication series
| Name | 2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019 |
|---|
Conference
| Conference | 20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019 |
|---|---|
| Country/Territory | Canada |
| City | Toronto |
| Period | 17/06/19 → 20/06/19 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- DC-DC Converter
- High Conversion Ratio
- Medium-Voltage
- Renewable Energy
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