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July 3, 2026EnergiesOpen Access

Two-Stage Stochastic Frequency-Security-Constrained Unit Commitment for Thermal-Storage Joint Frequency Regulation Under High Renewables Using Analytical Criterion and Linear Surrogates

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Authors

GWG Z WangRSRan SunJWJianbo Wang

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Overview

Randomized trial assesses a new model for frequency regulation in power systems with high renewables, indicating enhanced safety and efficiency.

Key Points

  • The aim is to balance frequency security and economic operation in power systems with high renewable energy integration.
  • Developed a two-stage stochastic frequency-security-constrained unit commitment model.
  • Utilized scenario-based rescheduling in an hourly dispatch stage to improve energy storage management.
  • Implemented analytical criteria with linear surrogates to manage frequency nadir constraints.
  • Reduced the probability of frequency nadir violations significantly with a minor cost increase.
  • Improved coordination between fast and slow frequency regulation under various renewable penetration levels.
  • Lowered the load-loss risk, thus enhancing overall system reliability.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a47540e5c29257aa2579db2https://doi.org/10.3390/en19133127
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