舰船燃气轮机发电模块仿真研究
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摘要
随着舰船综合电力系统成为未来舰船动力系统的发展方向,燃气轮机由于其独特的优势,是作为大功率发电模块原动机的理想选择。本文针对某型三轴燃气轮机用作燃气轮机发电模块原动机的运行特性以及其在负荷突变情况下的控制特性进行了仿真研究。
本文是基于某型三轴燃气轮机作为全电力推进的原动机的基础展开的,采用模块化建模的方法建立了燃气轮机系统各主要部件的非线性模型,同时考虑了转子惯性和容积惯性,所建模型具有很好的通用性。在部件特性处理方面,利用神经网络拟合法来处理压气机和涡轮的部件特性曲线,经验证,具有很高精度。利用Matlab/Simulink仿真平台,分别搭建了燃气轮机发电模块各部件的仿真模型,将各部件仿真模型通过连接调试,搭建起燃气轮机发电模块仿真模型。参考某型燃气轮机运行特性的相关资料,分别对仿真模型中的燃气轮机的额定功率、燃气轮机发电模块的故障保护、高压压气机后放气、调速器设置、最小、最大燃油流量限制等参数进行了初步设定。
依据燃气轮机发电模块负荷突变要求,制定适合燃气轮机发电模块的控制算法,分别设计了PID控制器和模糊PID控制器,并对燃气轮机发电模块负荷突减20%、负荷突减40%、负荷突减60%、全甩负荷以及负荷突增50%等5种情况进行了仿真研究。仿真研究结果表明,当燃气轮机发电模块负荷突变时,通过对参数的设置和设计的PID控制器、模糊PID控制器,能很好的使机组性能满足指标要求。并且通过仿真结果的比较得出当燃气轮机发电模块负荷突减40%、60%以及全甩负荷时,模糊PID控制算法能够更好的满足调节要求。
本文对于某型三轴燃气轮机作发电模块原动机的仿真研究,可作为后续燃气轮机发电模式运行的参考。
With the ship integrated power system has become the future development direction of ship power system; gas turbine is the ideal choice for the power generation module prime mover because of its unique advantages. In this paper, simulating the operating characteristics and mutation load control characteristics of a certain type three-axis gas turbine as power generation module prime mover.
The paper is based on a certain type of three-axis gas turbine electric propulsion as the original motivation of integrated electric propulsion, using modular modeling idea to establish the nonlinear model of gas turbine system major components, while taking into account the inertia of the rotor inertia and volume, the model has good versatility. Using neural networks to handle the compressor and turbine components characteristic curve, verified with high accuracy. Using Matlab/Simulink, this work established a gas turbine power generation module. Reference to gas turbine operating characteristics relevant information, respectively initially setting gas turbine rated power, gas turbine power generation module fault protection, high pressure compressor tail discharge air, the governor setting, PID control parameters, minimum, maximum fuel flow restrictions and other parameters of gas turbine power generation module.
According to the mutation load requirements of gas turbine power generation module, Respectively designed PID control system and fuzzy PID control system,and simulating gas turbine power generation module load sudden decrease 20%; load sudden decrease 40%;load sudden decrease 60%; load sudden decrease 100% and load sudden decrease 50% .The simulation results show that when gas turbine power generation module mutation load, set down parameter and design PID control system and fuzzy control system can make it meet guide line. Through comparing simulation results,When load sudden decrease 40%,60% and 100%,fuzzy PID control system is better than PID control system.
The simulation of gas turbines for power generation module of the original motivation can be used as references to the gas turbine power generation mode.
本文是基于某型三轴燃气轮机作为全电力推进的原动机的基础展开的,采用模块化建模的方法建立了燃气轮机系统各主要部件的非线性模型,同时考虑了转子惯性和容积惯性,所建模型具有很好的通用性。在部件特性处理方面,利用神经网络拟合法来处理压气机和涡轮的部件特性曲线,经验证,具有很高精度。利用Matlab/Simulink仿真平台,分别搭建了燃气轮机发电模块各部件的仿真模型,将各部件仿真模型通过连接调试,搭建起燃气轮机发电模块仿真模型。参考某型燃气轮机运行特性的相关资料,分别对仿真模型中的燃气轮机的额定功率、燃气轮机发电模块的故障保护、高压压气机后放气、调速器设置、最小、最大燃油流量限制等参数进行了初步设定。
依据燃气轮机发电模块负荷突变要求,制定适合燃气轮机发电模块的控制算法,分别设计了PID控制器和模糊PID控制器,并对燃气轮机发电模块负荷突减20%、负荷突减40%、负荷突减60%、全甩负荷以及负荷突增50%等5种情况进行了仿真研究。仿真研究结果表明,当燃气轮机发电模块负荷突变时,通过对参数的设置和设计的PID控制器、模糊PID控制器,能很好的使机组性能满足指标要求。并且通过仿真结果的比较得出当燃气轮机发电模块负荷突减40%、60%以及全甩负荷时,模糊PID控制算法能够更好的满足调节要求。
本文对于某型三轴燃气轮机作发电模块原动机的仿真研究,可作为后续燃气轮机发电模式运行的参考。
With the ship integrated power system has become the future development direction of ship power system; gas turbine is the ideal choice for the power generation module prime mover because of its unique advantages. In this paper, simulating the operating characteristics and mutation load control characteristics of a certain type three-axis gas turbine as power generation module prime mover.
The paper is based on a certain type of three-axis gas turbine electric propulsion as the original motivation of integrated electric propulsion, using modular modeling idea to establish the nonlinear model of gas turbine system major components, while taking into account the inertia of the rotor inertia and volume, the model has good versatility. Using neural networks to handle the compressor and turbine components characteristic curve, verified with high accuracy. Using Matlab/Simulink, this work established a gas turbine power generation module. Reference to gas turbine operating characteristics relevant information, respectively initially setting gas turbine rated power, gas turbine power generation module fault protection, high pressure compressor tail discharge air, the governor setting, PID control parameters, minimum, maximum fuel flow restrictions and other parameters of gas turbine power generation module.
According to the mutation load requirements of gas turbine power generation module, Respectively designed PID control system and fuzzy PID control system,and simulating gas turbine power generation module load sudden decrease 20%; load sudden decrease 40%;load sudden decrease 60%; load sudden decrease 100% and load sudden decrease 50% .The simulation results show that when gas turbine power generation module mutation load, set down parameter and design PID control system and fuzzy control system can make it meet guide line. Through comparing simulation results,When load sudden decrease 40%,60% and 100%,fuzzy PID control system is better than PID control system.
The simulation of gas turbines for power generation module of the original motivation can be used as references to the gas turbine power generation mode.
引文
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