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| Content Provider | IET Digital Library |
|---|---|
| Author | Lyu, Gang Yu, Zhanqing Zeng, Rong Liu, Jiapeng Zhang, Xueqiang Long, Teng Palmer, Patrick |
| Abstract | Hybrid DC breakers (HCBs) are crucial components in modern DC systems. Integrated gate-commutated thyristors (IGCTs) are widely used in high-voltage HCBs due to their controllable turn-off capabilities under high-power conditions. The focus of this study is on the optimisation of gate-commutated thyristors (GCTs) for HCB applications, including operation temperature and design parameters. The considerations of GCT design and operating conditions for the use in HCBs are discussed. Under those considerations, a 2D finite element model of GCT is developed to investigate the influence of the GCT design parameters on the maximum controllable current (MCC) and the safe operation area (SOA). Impedance unevenly distributed along the full wafer has been calculated to obtain accurate simulation results. Results show that the P+-base, lifetime, and the distance between cathode and gate metallisation can all affect the MCC. In addition, GCTs can provide a higher MCC by operating at a higher temperature. |
| Starting Page | 2002 |
| Ending Page | 2009 |
| Page Count | 8 |
| ISSN | 17554535 |
| Volume Number | 10 |
| e-ISSN | 17554543 |
| Issue Number | Issue 14, Nov (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/10/14 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2017.0235 |
| Journal | IET Power Electronics |
| Publisher Date | 2017-08-04 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 2D Finite Element Model Cathode Circuit Breaker DC System Finite Element Analysis Gate Metallisation Gate-commutated Thyristor Optimisation GCT Design Parameter High-voltage HCBs Hybrid DC Breaker IGCTs Integrated Gate-commutated Thyristors Maximum Controllable Current MCC Operation Temperature Optimisation Optimisation Technique Power Converter Power Supplies to Apparatus Safe Operation Area SOA Switch Thyristor Application |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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