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Development of a compression system dynamic simulation code for testing and designing of anti-surge control system

机译:开发用于防喘振控制系统的测试和设计的压缩系统动态仿真代码

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In recent years, several research activities have been conducted to develop knowledge in analysis, design and optimization of compressor anti-surge control system. Since the anti-surge control testing on a full-scale compressor is limited to possible consequences of failure, and also the experimental facility can be expensive to set up control strategies and logic, design process often involves analyses using compression system dynamic simulation. This research focuses on developing and validating a physics-based, modular, non-linear and one-dimensional dynamic model of a compression system: centrifugal compressor and its surrounding process equipment like the scrubber, cooler, recycle line with control and check valves. The mathematical approach of the model is based on laws of conservation and the included ordinary differential equations (ODEs) which describe the system dynamics. It is solved by using a computational method in an in-house FORTRAN code. Compressor characteristics maps generated from company compressor test bench are used to determine compressor pressure ratio and efficiency. All equipment and inlet/outlet accessories as well as test instructions, follow the requirements of ASME PTC10. The simulation within a wide range of operating conditions allows a parametric study to be performed and the optimal values of the control parameters to be selected. In order to check the validity of the model, the simulation results are then compared with experimental data of company industrial compressor test facility and also with operational field measurements.
机译:近年来,已经开展了一些研究活动,以开发有关压缩机防喘振控制系统的分析,设计和优化的知识。由于在全尺寸压缩机上进行的喘振控制测试仅限于可能发生的故障后果,而且实验设施设置控制策略和逻辑的成本可能很高,因此设计过程通常涉及使用压缩系统动态仿真进行分析。这项研究的重点是开发和验证压缩系统的基于物理学的,模块化的,非线性的和一维动态模型:离心式压缩机及其周围的过程设备,例如洗涤器,冷却器,带有控制阀和止回阀的回收线。该模型的数学方法是基于守恒定律和描述系统动力学的常微分方程(ODE)。通过在内部FORTRAN代码中使用计算方法来解决此问题。从公司压缩机测试台生成的压缩机特性图用于确定压缩机压力比和效率。所有设备和入口/出口附件以及测试说明均遵循ASME PTC10的要求。在广泛的工作条件下进行仿真可以进行参数研究,并可以选择控制参数的最佳值。为了检查模型的有效性,然后将仿真结果与公司工业压缩机测试设施的实验数据以及运行现场测量结果进行比较。

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