Question

Choose the correct one:

• A. Ybus matrix and Zbus matrix are sparse
• B. Jacobian matrix and Zbus matrix are not sparse
• C. Ybus matrix and Jacobian matrix are sparse
• D. Ybus matrix sparse and Jacobian matrix is not sparse

Hint:

Sparsity in matrices helps reduce computation time in large-scale power system simulations.

Answer 1

The Correct Option is C

In power system analysis:
- Ybus (admittance) matrix is sparse due to limited node connections
- Jacobian matrix (used in Newton-Raphson method) is also sparse due to locality of derivatives