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| Content Provider | IET Digital Library |
|---|---|
| Author | Cheng, Long Zhang, Zehua Zhang, Fanghua |
| Abstract | For a hybrid energy storage system consisting of battery and super-capacitor (SC) in More Electric Aircraft, a decentralised control strategy, which is based on the virtual impedance droop control, can implement the frequency domain allocation of load power avoiding communication delay and a single point of failure. Although the output voltage deviation and state-of-charge (SoC) limitation are solved by existing methods, it still suffers from settling time extending. Secondary voltage controls (SVCs) of virtual-droop-controlled for battery and SC are proposed to solve the issue. SVC for the output voltage is designed to compensate for the output voltage deviation in the battery converter based on virtual resistance droop control. SC converter, which is controlled by the SVC for input voltage in virtual capacitance droop control, enforces SC SoC back to the initial value and maintains consistent settling time. In this study, a set of detailed design methods for the controller parameters of SVC are developed not only to regulate the output voltage and SoC recovery but also to keep the same settling time. The results of the simulation and experiment validate the effectiveness of the proposed SVC and design method. |
| Starting Page | 3018 |
| Ending Page | 3025 |
| Page Count | 8 |
| ISSN | 17554535 |
| Volume Number | 13 |
| e-ISSN | 17554543 |
| Issue Number | Issue 14, Nov (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/13/14 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.1566 |
| Journal | IET Power Electronics |
| Publisher Date | 2020-06-11 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Battery Converter Consistent Settling Time Control of Electric Power System Controller Parameter DC-DC Power Converter Decentralised Control Decentralised Control Strategy Distributed Power Generation Energy Storage Frequency Domain Allocation Hybrid Energy Storage System Input Voltage Multivariable Control System Output Voltage Deviation Power Electronics Power Generation Control Power Supply SC Converter Secondary Voltage Control Settling Time State-of-charge Limitation Supervisory Circuit SVC Virtual Capacitance Droop Control Virtual Impedance Droop Controlled Bidirectional DC-DC Converter Virtual Resistance Droop Control Voltage Control |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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