Incorporating External Flexibility in Generation Expansion Planning

Exploiting flexibilities (e.g., demand response, energy storage, and deep peak regulation.) in generation expansion planning (GEP) is significant for coping with the increase of renewable energy (RE). This letter presents a GEP model with novel consideration of the flexibility of the interconnected external network without data leakage. External flexibility (detailed information) is represented as a feasible region with generation cost functions related to tie-line power, by using multi-parametric programming. Numerical results demonstrate the effectiveness of the proposed model.