燃气轮机发电系统的节能控制

Q2 Engineering Designs Pub Date : 2023-07-03 DOI:10.3390/designs7040085
Marwan Al-Shami, Omar Mohamed, Wejdan Abu Elhaija
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引用次数: 0

摘要

燃气轮机在能源领域被用作推进和发电技术。尽管发电技术取得了进步,出现了许多能源资源,但燃气轮机技术仍然很重要,因为它在负荷需求跟踪、动态行为方面具有灵活性,并且能够在设计上进行微小更改的情况下工作于不同的燃料。然而,没有可靠的建模和仿真,燃气轮机就不会有雄心勃勃的进展。本文介绍了一种用于燃气轮机电厂运行建模、识别和控制的新方法。提出了一种简化的非线性模型结构,由s域传递函数和由速率限制器、饱和和查找表表示的非线性块组成。模型参数经过优化以适应实际数据。然后利用验证的模型设计了一个多PI/PD控制,通过进口导叶和燃料值来调节燃气轮机。其目的是提高和稳定压气机的压差或压比,以及提高燃烧涡轮排气温度的设定点;因此,在120兆瓦至240兆瓦的负荷范围内,能源效率平均提高了237.16兆瓦时的能源节约(或燃料消耗减少8.96%)。
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Energy-Efficient Control of a Gas Turbine Power Generation System
Gas turbines are used in the energy sectors as propulsion and power generation technologies. Despite technological advances in power generation and the emergence of numerous energy resources, gas turbine technology remains important due to its flexibility in load demand following, dynamical behavior, and the ability to work on different fuels with minor design changes. However, there would be no ambitious progress for gas turbines without reliable modeling and simulation. This paper describes a novel approach for modeling, identifying, and controlling a running gas turbine power plant. A simplified nonlinear model structure composed of s-domain transfer functions and nonlinear blocks represented by rate limiters, saturations, and look-up tables has been proposed. The model parameters have been optimized to fit real-world data. The verified model was then used to design a multiple PI/PD control to regulate the gas turbine via the inlet guide vane and fuel vales. The aim is to raise and stabilize the compressor’s differential pressure or pressure ratio, as well as raise the set-point of the temperature exhausted from the combustion turbine; as a result, energy efficiency has been improved by an average of 237.16 MWh saving in energy (or 8.96% reduction in fuel consumption) for a load range of 120 MW to 240 MW.
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来源期刊
Designs
Designs Engineering-Engineering (miscellaneous)
CiteScore
3.90
自引率
0.00%
发文量
0
审稿时长
11 weeks
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