Continuous-time look-ahead flexible ramp scheduling in real-time operation

Bagherinezhad, Avishan; Khatami, Roohallah; Parvania, Masood

doi:10.1016/j.ijepes.2020.105895

Continuous-time look-ahead flexible ramp scheduling in real-time operation

Journal Article · Wed Feb 19 23:00:00 EST 2020 · International Journal of Electrical Power and Energy Systems

DOI:https://doi.org/10.1016/j.ijepes.2020.105895· OSTI ID:1801337

Bagherinezhad, Avishan ^[1]; Khatami, Roohallah ^[2]; Parvania, Masood ^[2]

Univ. of Utah, Salt Lake City, UT (United States); OSTI
Univ. of Utah, Salt Lake City, UT (United States)

This paper develops a novel continuous-time look-ahead optimization model for co-optimizing balancing energy and flexible ramp products in real-time power systems operation. In addition, a continuous-time day-ahead operation model is developed to commit and schedule an adequate subset of generating units for providing balancing energy and ramping requirements in real-time operation. The up and down flexible ramp products are defined as continuous-time decision trajectories that continuously supply the real-time up and down ramping requirements of the system. The deliverability of flexible ramp products is secured through reserving the respective power requirements in generation capacity constraints of generating units. A function space solution method is proposed to reduce the dimensionality of day-ahead and real-time models through projecting them into finite-dimensional function spaces spanned by Bernstein polynomials, where the real-time operation decisions are modeled with a higher accuracy level than day-ahead decisions. Simulations are conducted on the IEEE-RTS system using CAISO load data, and the numerical results showcase the effectiveness of the proposed model in supplying the energy and flexible ramp requirements and avoiding ramping scarcity in the system, while reducing the operation costs.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Utah, Salt Lake City, UT (United States)

Sponsoring Organization:: USDOE Office of Electricity Delivery and Energy Reliability (OE)

Grant/Contract Number:: OE0000882

OSTI ID:: 1801337

Alternate ID(s):: OSTI ID: 1760080

Journal Information:: International Journal of Electrical Power and Energy Systems, Journal Name: International Journal of Electrical Power and Energy Systems Vol. 119; ISSN 0142-0615

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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24 POWER TRANSMISSION AND DISTRIBUTION
continuous-time optimization
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Continuous-time look-ahead flexible ramp scheduling in real-time operation

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