Research Article
Key Transmission Section Search Based on Graph Theory and PMU Data for Vulnerable Line Identification in Power System
Algorithm 3
Key transmission section search algorithm.
| | Input: PMU data and initial power flow | | (1) | Construct a grid topology diagram. | | (2) | Calculate the PTDF and its modulus. | | (3) | Calculate the power transmission efficiency . | | (4) | Construct an observation data matrix A(t) from PMU data. | | (5) | Calculate the total energy Ek(t) and energy fluctuation probability pk(t). | | (6) | Calculate the comprehensive evaluation indicator . | | (7) | Sort the vulnerable lines. | | (8) | Use the improved Floyd algorithm to search flow transfer section | | (9) | Calculate line outage distribution factor . | | (10) | Filter out the branch of . | | (11) | Calculate the safety margin Mij. | | (12) | Filter out the branches of Mij < 0.6. | | | Output: all key transmission sections. |
|
