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Flexibility and Frequency Security Enhancement to Generation Expansion Planning Framework
Author(s)
Komasatid, K.
Date Issued
May 15, 2019
Type
Conference Paper
Abstract
The traditional generation expansion planning (GEP) framework focuses on system adequacy where generation portfolio can cover the growing peak demand, taking into account the uncertainty. The need for low-carbon society, makes renewable portfolio (solar, wind, hydro, biomass, etc.) grow rapidly in many countries. Unfortunately, variable renewables (VR), i.e. wind, solar and small hydro, are changing conventional power system planning philosophy. On one side, dispatch characteristics require high flexible capacities to respond with the changes of system net load. The other side is that, frequency dynamics may deteriorate because the conventional generation is replaced by near-zero inertia generation and non-governor control. To encounter these problems, this study enhances flexibility and frequency security assessment into traditional GEP framework. The proposed framework is demonstrated on the modified IEEE RTS-1996, considering only high penetration of solar photovoltaics. Furthermore, simulation results signify that the optimal plan satisfies both flexibility and frequency security point of view.
Citation
2019 IEEE Pes Gtd Grand International Conference and Exposition Asia Gtd Asia 2019, 762-767, 2019