An a priori analytical method for the determination of operating reserve requirements

Aramazd Muzhikyan, Amro M. Farid, Kamal Youcef-Toumi

    Research output: Contribution to journalArticlepeer-review

    14 Scopus citations

    Abstract

    Power balance is one of the key requirements for reliable power system operation. However, factors, such as net load variability and forecast errors, impose practical limitations on matching the scheduled generation and the real-time demand. Normally, potential power imbalances are mitigated by scheduling additional generation capacity called operating reserves. However, reserves are a costly commodity and their requirements should be accurately assessed to avoid unnecessary expense. Currently, the reserve requirements are determined using a posteriori methods based upon operator's experience and established assumptions. While these assumptions are made out of a level of engineering practicality, they may not be formally true given the numerical evidence. This paper presents a formal mathematical framework for the a priori determination of three types of operating reserve requirements, namely load following, ramping and regulation. Validation of the methodology is performed by a set of extensive simulations that model the power system operations for different scenarios. This methodology is used to study the sensitivity of each type of reserve requirement to the net load and power system parameters.

    Original languageEnglish
    Pages (from-to)1-17
    Number of pages17
    JournalInternational Journal of Electrical Power and Energy Systems
    Volume86
    DOIs
    StatePublished - 1 Mar 2017

    Keywords

    • Load following reserves
    • Power system operations
    • Ramping reserves
    • Regulation reserves

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