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Phase lead error-based active disturbance rejection control for 1000 MW ultra-supercritical unit under flexible operation

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  • Pang, Dawei
  • Niu, Yuguang
  • Du, Ming

Abstract

For increased renewable energy consumption and enhanced flexible operation of the ultra-supercritical unit (USC), a phase lead error-based active disturbance rejection control (PL-EADRC) combined with static decoupling is proposed. First, the control difficulties of the USC unit under flexible operation are analyzed. Then, the total disturbance observation ability of conventional error-based ADRC (EADRC) is improved by designing the phase lead. Stability and frequency domain analyses are performed subsequently. Simulation results revealed that the tracking and disturbance rejection performances of PL-EADRC, under full operating conditions, improved significantly over each loop compared to the conventional EADRC and proportional–integral–derivative (PID). Based on the observed advantages, the proposed PL-EADRC strategy is expected to have broad industrial application prospects.

Suggested Citation

  • Pang, Dawei & Niu, Yuguang & Du, Ming, 2025. "Phase lead error-based active disturbance rejection control for 1000 MW ultra-supercritical unit under flexible operation," Energy, Elsevier, vol. 319(C).
    • Handle: RePEc:eee:energy:v:319:y:2025:i:c:s0360544225005882
    DOI: 10.1016/j.energy.2025.134946
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