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| Content Provider | IET Digital Library |
|---|---|
| Author | Li, Zekun Pei, Wei Ye, Hua Kong, Li |
| Abstract | Brayton–Moser's mixed potential theory has been used to analyse the large disturbance stability of DC microgrid with constant power load (CPL), such as current-mode controlled BUCK/BOOST converter with CPL or DC system with multi-stage LC filters. However, the stability analysis of other topology of DC–DC converter or multiple converters worked under droop control is rarely involved. Based on this issue, this paper first establishes the mixed potential model of a single bidirectional BUCK/BOOST converter with CPL. Then, the paper gives the method for establishing the mixed potential model of a droop-controlled DC microgrid with multiple bidirectional BUCK/BOOST converters and CPL. Afterwards, the stability criterion of the analytic form of the system under large disturbance is obtained, which shows that the parameters such as system parameters, control parameters, droop coefficients, and CPL power value have the effects on the system's large signal stability. This paper gives and discusses the relationship between system parameters and stability. Thus, instead of calculating and simulating repeatedly, the stability criterion can judge and ensure the stability of the system under large disturbance in the design process. Simulation results demonstrate the correctness of the simple and easily implemented stability criterion. |
| Starting Page | 1189 |
| Ending Page | 1193 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8574 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-23 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
| Subject Keyword | Brayton–Moser's Mixed Potential Theory Constant Power Load Control of Electric Power System Control Parameter CPL Power Value DC System DC-DC Power Converter Distributed Power Generation Disturbance Stability Droop Coefficient Droop Control Droop-controlled DC Microgrid Mixed Potential Model Multiple Bidirectional BUCK/BOOST Converter Multiple Converter Multistage LC Filter Power Converter Power Electronics Power Generation Control Power Supplies to Apparatus Power Supply Power System Stability Signal Stability Analysis Single Bidirectional BUCK/BOOST Converter Stability Stability Criteria Supervisory Circuit System Parameter Voltage Control |
| Content Type | Text |
| Resource Type | Article |
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