Abstract
At present, solar photovoltaic plants mainly adopt AC collection grid-connected systems, with simple control methods and large transmission loss, which is not conducive to long-distance transmission of power. Meanwhile, the DC Collection Grid-Connected System (DCCGS) has flexible control modes and higher transmission efficiency. DCCGS consists of DC collection system and DC grid-connected system with different voltage levels, including multiple DC loops and various inverters. The existing AC or DC protection cannot be directly applied to DCCGS. It is necessary to analyse the fault characteristics of DCCGS and propose a new type protection. The DCCGS control and protection scheme proposed in this dissertation can effectively improve the operational reliability of solar photovoltaic plants, and lays a solid foundation for further research on DCCGS collaborative control.
| Original language | English |
|---|---|
| Title of host publication | IET Conference Proceedings |
| Publisher | Institution of Engineering and Technology |
| Pages | 724-729 |
| Number of pages | 6 |
| Volume | 2020 |
| Edition | 1 |
| ISBN (Electronic) | 9781839533303 |
| DOIs | |
| Publication status | Published - 2020 |
| Externally published | Yes |
| Event | 16th IET International Conference on AC and DC Power Transmission, ACDC 2020 - Virtual, Online Duration: 2 Jul 2020 → 3 Jul 2020 |
Conference
| Conference | 16th IET International Conference on AC and DC Power Transmission, ACDC 2020 |
|---|---|
| City | Virtual, Online |
| Period | 2/07/20 → 3/07/20 |
Keywords
- DC collection
- control and protection
- fault analysis
- solar photovoltaic plants
- system modelling
