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| Content Provider | IET Digital Library |
|---|---|
| Author | Guo, Deyang Rahman, Md H. Ased, Grain P. Xu, Lie Emhemed, Abdullah Burt, Graeme M. Audichya, Yash |
| Abstract | This paper presents a detailed comparison of different modelling methods of the half-bridge modular multilevel converter (HB-MMC), namely, switching function, Thevenin equivalent, and averaged, considering both MMC implementations (large and reduced number of cells). The theoretical basis that underpins each modelling method are discussed. Offline PSCAD simulations are used to validate user-defined switching function and averaged MMC models against the Thevenin equivalent model provided in PSCAD library for accuracy, considering steady-state and DC fault conditions. Furthermore, the RTDS based real-time simulation results of the user-defined HB-MMC switching function model are validated against the above mentioned offline models, considering steady-state and DC short circuit fault operations. Simulation speed and efficiency of different offline HB-MMC models being studied here are compared. From comprehensive corroboration of different HB-MMC models presented here, it has been found that the averaged, switching function and Thevenin equivalent models produce practically identical results during steady-state and DC faults. In detailed offline and real-time simulation studies where fundamental and harmonic dynamics are of interest, switching function model is found to be faster and computational efficient compared to the Thevenin equivalent model. |
| Starting Page | 1292 |
| Ending Page | 1298 |
| Page Count | 7 |
| 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.2018.8770 |
| 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 | Averaged MMC Model Bridge Circuit DC Short Circuit Fault Operation Fault Diagnosis Fundamental Dynamics Half-bridge Modular Multilevel Converter Modelling Method Harmonic Dynamics Harmonics Offline HB-MMC Model Offline PSCAD Simulations Power Converter Power Engineering Computing Power Supplies to Apparatus Power Supply Quality Power System CAD Power System Harmonics Real-time Simulation Result Steady-state Fault Condition Switching Converter Thevenin Equivalent Model User-defined HB-MMC Switching Function Model |
| Content Type | Text |
| Resource Type | Article |
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