Abstract
Frequency stability management of asynchronously interconnected grids is becoming a great challenge. This paper investigates how asynchronous sending- and receiving-end grids can be operated in a synergistic and interactive manner to guarantee frequency stability following the worst case HVDC bipole block while still ensuring operational economy. A novel enhanced frequency stability constrained multiperiod optimal power flow model (EFOPF) with flexible fast-acting HVDC corrective control is proposed. EFOPF dynamically schedules the distribution of primary reserves and HVDC corrective actions to simultaneously handle postcontingency over- and under-frequency disturbances occurring in the sending- and receiving-end grids, respectively. An alternating direction method of multipliers based distributed algorithm was developed to solve this problem. A case study of a modified two-area RTS-96 system demonstrates the effectiveness of the proposed EFOPF.
| Original language | English |
|---|---|
| Pages (from-to) | 1800-1810 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Power Systems |
| Volume | 33 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Mar 2018 |
| Externally published | Yes |
Keywords
- Asynchronous grids
- corrective control
- frequency stability
- HVDC
- inertia
- optimal power flow
- primary reserve
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering