Report on High-Fidelity Dynamic Modeling of a Coal-Fired Steam Power Plant [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.31 Generation, modification, storage, transmission of electric power
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy for Fossil Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2021
• Mô tả vật lý: Medium: ED : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 267833
• Chủ đề: 1. 01 coal, lignite, and peat; 2. Technical report high-fidelity dynamic modeling of a coal-fired steam power plant de-fe0031767 prepared by: timothy braun, lionel lambert, xinsheng lou, nikolaus schuermann prepared for: united state department of energy under award number de-fe0031767 project period: october 1, 2019 to september 30, 2021 ? executive summary as a result of the growth of renewables including solar and wind energy with fluctuating production, fossil fuel power plants are being required to cycle between high and low power production. this cycling is both at a greater frequency and over a wider range than in the past. in many cases, power plants are not designed for this type of cycling operation but can nonetheless endure these challenging operation requirements under the right conditions. in this project, optimal solution for enhanced flexible operations are being investigated using model based estimation and control techniques. to support the development of model-based estimator and model-based controls at ge global research, ge steam power configured a dynamic model using a reference steam plant design including the boiler, turbine, and watersteam conditioning systems as well as the controls needed for plant cycling with stability and reliability. the dynamic model was built using the apros� software from vtt, and then calibrated to multiple load conditions from full load (100%tmcr) to partial loads (75%tmcr, 50%tmcr and 25%tmcr) based on internally developed steady state heat balance models at the unit level. these internal heat balance models are based on first principles and extensive engineering experiences from ge steam power as an oem and a services provider. this topical report presents the structure of the unit level dynamic model, the tuning process, and representative simulation results from typical load cycling simulations using the dynamic model. keywords: steam power plant, dynamic process modeling, model calibration, simulation analysis

Tóm tắt

As a result of the growth of renewables including solar and wind energy with fluctuating production, fossil fuel power plants are being required to cycle between high and low power production. This cycling is both at a greater frequency and over a wider range than in the past. In many cases, power plants are not designed for this type of cycling operation but can nonetheless endure these challenging operation requirements under the right conditions. In this project, optimal solution for enhanced flexible operations are being investigated using model based estimation and control techniques. To support the development of model-based estimator and model-based controls at GE Global Research, GE Steam Power configured a dynamic model using a reference steam plant design including the boiler, turbine, and water/steam conditioning systems as well as the controls needed for plant cycling with stability and reliability. The dynamic model was built using the APROS� software from VTT, and then calibrated to multiple load conditions from full load (100%TMCR) to partial loads (75%TMCR, 50%TMCR and 25%TMCR) based on internally developed steady state heat balance models at the unit level. These internal heat balance models are based on first principles and extensive engineering experiences from GE Steam Power as an OEM and a services provider. This topical report presents the structure of the unit level dynamic model, the tuning process, and representative simulation results from typical load cycling simulations using the dynamic model.