Abstract
The use of high frequency power converters to enhance power density and energy efficiency has become widely used in grid-connected hybrid DC microgrids. This paper presents a new modularized high frequency DC-link integration methodology that connects multisource renewable energy sources involves battery energy storage system (BESS) to the AC-grid. A grid-tie-inverter with a line inductor is introduced to control the active-reactive power flow. To minimize the converter physical size with improved system efficiency, a high frequency-based front-end multisource bridgeless boost (MBB) architecture is proposed here. A direct-mount decoupling snubber capacitor and a soft switching are used to reduce the switching losses resulted from the high-frequency operation. The performance of the proposed system is investigated. A direct digital approach is used to design the system controller in Matlab/Simulink R2022a environment. To validate the system performance, a 10 kW multi-source grid-connected experimental setup with dSPACE-1104 controller is constructed, tested, and compared with other conventional topologies. The test results verify the proposed topology effectiveness for hybrid grid-connected renewable energy resources integration.
| Original language | English |
|---|---|
| Title of host publication | 2022 IEEE Industry Applications Society Annual Meeting, IAS 2022 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781665478151 |
| DOIs | |
| State | Published - 2022 |
| Event | 2022 IEEE Industry Applications Society Annual Meeting, IAS 2022 - Detroit, United States Duration: 9 Oct 2022 → 14 Oct 2022 |
Publication series
| Name | Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) |
|---|---|
| Volume | 2022-October |
| ISSN (Print) | 0197-2618 |
Conference
| Conference | 2022 IEEE Industry Applications Society Annual Meeting, IAS 2022 |
|---|---|
| Country/Territory | United States |
| City | Detroit |
| Period | 9/10/22 → 14/10/22 |
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 microgrid
- digital control
- hybrid renewable systems
- multi-source boost converter
- voltage source inverter
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