Chance-constrained scheduling of variable generation and energy storage in a multi-timescale framework

Wen Shan Tan, Md Pauzi Abdullah, Mohamed Shaaban

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

This paper presents a hybrid stochastic deterministic multi-timescale scheduling (SDMS) approach for generation scheduling of a power grid. SDMS considers flexible resource options including conventional generation flexibility in a chance-constrained day-ahead scheduling optimization (DASO). The prime objective of the DASO is the minimization of the daily production cost in power systems with high penetration scenarios of variable generation. Furthermore, energy storage is scheduled in an hourly-ahead deterministic real-time scheduling optimization (RTSO). DASO simulation results are used as the base starting-point values in the hour-ahead online rolling RTSO with a 15-minute time interval. RTSO considers energy storage as another source of grid flexibility, to balance out the deviation between predicted and actual net load demand values. Numerical simulations, on the IEEE RTS test system with high wind penetration levels, indicate the effectiveness of the proposed SDMS framework for managing the grid flexibility to meet the net load demand, in both day-ahead and real-time timescales. Results also highlight the adequacy of the framework to adjust the scheduling, in real-time, to cope with large prediction errors of wind forecasting.

Original languageEnglish
Pages (from-to)1709-1718
Number of pages10
JournalJournal of Electrical Engineering and Technology
Volume12
Issue number5
DOIs
Publication statusPublished - Sep 2017
Externally publishedYes

Keywords

  • Energy storage
  • Mixed-integer linear programming
  • Multi-timescale scheduling
  • Unit commitment
  • Wind generation

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