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| Content Provider | IET Digital Library |
|---|---|
| Author | Karthikeyan, V. Gupta, Rajesh |
| Abstract | This study proposes a cascaded multilevel isolated bidirectional DC–DC converter (CMIBDC) suitable for large capacity energy storage applications. Compared to conventional IBDC, the proposed converter has higher power-handling capacity distributed among multiple cascaded HV and LV bridges. The HV bridges are cascaded through a high-frequency transformer with a common DC bus. On the other hand, the LV bridges are directly cascaded with isolated DC storage batteries. Effectively, the CMIBDC requires only a single DC input to store the energy in multiple battery units. A multi-phase shift (MPS) modulation scheme has been introduced which provide wide range of power flow control. The MPS modulation shapes the high-frequency link AC current with low THD thus reducing high-frequency losses. Detailed operating waveforms of the proposed CMIBDC converter in different modes are presented. The performance of the proposed converter and modulation scheme has been demonstrated through PSCAD/EMTDC simulation and validated experimentally using Spartan 3AN FPGA processor-controlled CMIBDC. |
| Starting Page | 2996 |
| Ending Page | 3003 |
| Page Count | 8 |
| ISSN | 17554535 |
| Volume Number | 12 |
| e-ISSN | 17554543 |
| Issue Number | Issue 11, Sep (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/12/11 |
| Journal | IET Power Electronics |
| Publisher Date | 2019-06-17 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Capacity Energy Storage Application Cascaded Multilevel Isolated Bidirectional DC–DC Converter Suitable CMIBDC Converter Common DC Bus Control of Electric Power System DC-DC Power Converter Distributed Power Flow Control Energy Storage Field Programmable Gate Array FPGA Processor-controlled CMIBDC Harmonic Distortion High-frequency Link AC Current High-frequency Loss High-frequency Transformer Higher Power-handling Capacity HV Bridges Isolated DC Storage Batteries Load Flow Control Logic Circuit LV Bridges Multiphase Shift Modulation Scheme Multiple Cascaded HV Power Converter Power Electronics Power Supplies to Apparatus Power Supply Power System Control Single DC Input Supervisory Circuit |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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