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Article Dans Une Revue Applied Energy Année : 2018

An integrated framework for operational flexibility assessment in multi-period power system planning with renewable energy production

Résumé

• Quantitative modeling framework for operational flexibility assessment. • Integration of short-term constraints in generation expansion planning model. • Renewable energy penetration drives flexibility needs higher than carbon limits. A B S T R A C T This paper proposes an integrated framework for operational flexibility assessment in power system planning with a significant share of intermittent renewable energy sources (RES). The framework proposed includes: (i) the formulation of an integrated generation expansion planning (GEP) and unit commitment (UC) model accounting for key short-term technical constraints, (ii) the elaboration of accurate and systematic horizon reduction methods to alleviate the computational burden of the resulting large-sized optimization problems and (iii) the definition of suitable metrics for the operational flexibility assessment of the obtained plans. The framework is applied to a ten year planning horizon of a realistically sized case study representing the national power system of France, under several scenarios of RES penetration levels and carbon limits, spanning levels of up to 50%. The importance of incorporating the detailed short-term constraints within long-term planning models is shown. The results of the assessment show that, under high renewable energy penetration, neglecting the short-term constraints may lead to plans significantly short on flexibility, reaching shortage levels of up to 50% in frequency and several GWs in magnitude. Also, the load not served reaches levels of up to 3% and carbon emission is underestimated by up to 60%. Furthermore, the results highlight the importance of relying on suitable quantitative metrics for operational flexibility assessment in power systems planning rather than solely relying on generic performance measures, such as system costs and mixes of power plants, which are shown not to sufficiently reflect the flexibility levels of the obtained plans.
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Dates et versions

hal-01988983 , version 1 (08-02-2019)

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Adam Abdin, Enrico Zio. An integrated framework for operational flexibility assessment in multi-period power system planning with renewable energy production. Applied Energy, 2018, 222, pp.898-914. ⟨10.1016/j.apenergy.2018.04.009⟩. ⟨hal-01988983⟩
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