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火电厂主汽温
相关语句
  main-steam temperature
     Bandwidth analysis of main-steam temperature PID controller parameters in fossil-fired power station
     火电厂主汽温PID控制器参数带宽分析及应用
短句来源
     The main-steam temperature with characteristics of nonlinear and time-variant of long dead time are often affected by many measurable and immeasurable disturbances in operation.
     火电厂主汽温被控对象具有大迟延、非线性时变的特性,且在实际运行中存在诸多可测与不可测的扰动。
短句来源
     The main-steam temperature with characteristics of nonlinear and time-variant of long dead time are often affeacted by many measurable and immeasurable disturbances in operation.
     火电厂主汽温被控对象具有大迟延、非线性时变的特性,且在实际运行中存在诸多可测与不可测的扰动。
短句来源
     In this paper,a new method of cascade control system is presented by combining prediction control with conventional PID control according to some characteristics of the main-steam temperature of thermal power plant.
     针对火电厂主汽温过程特点,提出了一种串级控制系统的新方法,将预测控制与常规PID控制方案相结合。
短句来源
  “火电厂主汽温”译为未确定词的双语例句
     The Application of Fuzzy-PID Controller in the Temperature Control of Superheated Steam in Power Plant
     模糊PID控制器在火电厂主汽温控制中的应用
短句来源
     PID Cascade Control System of Power Plant Main Steam Temperature with RBF Network Tuning
     用RBF网络整定的火电厂主汽温PID串级控制系统
短句来源
     In view of large delay and uncertainty of the main steam temperature object in a power plant, combining with internal model controller, a control system based on adaptive PSD has been designed.
     针对火电厂主汽温对象大迟延、不确定性的特点 ,结合内模控制器设计了基于自适应PSD控制器的控制系统。
短句来源
     Main Steam Temperature Control of Thermal Power Plant Based on Active Disturbance Rejection Control
     自抗扰控制在火电厂主汽温控制中的应用
短句来源
     Based on the immune feedback regulating law and the approaching ability for nonlinear function of fuzzy rational logic, a fuzzy immune PID control is presented.
     本文借鉴生物免疫反馈响应过程的调节作用和模糊推理逻辑可逼近非线性函数的特性, 提出将模糊免疫PID控制策略应用到火电厂主汽温控制系统中。
短句来源
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  相似匹配句对
     Immune PID Cascade Control of Fresh Steam Temperature Control System in Fossil-fired Power Plant
     火电厂控制系统的免疫PID串级控制
短句来源
     Disturbance canceling design for the main steam temperature system of thermal power plant
     火电厂系统扰动消除设计方法
短句来源
     Main Steam Temperature Control of Thermal Power Plant Based on Active Disturbance Rejection Control
     自抗扰控制在火电厂控制中的应用
短句来源
     Main Steam Temperature Control System Based on IMC PID
     基于内模PID控制的火电厂控制系统
短句来源
     Bandwidth analysis of main-steam temperature PID controller parameters in fossil-fired power station
     火电厂PID控制器参数带宽分析及应用
短句来源
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In order to overcome the large delay and the uncertainty of the main-stream temperature object in fossil-fired power station, a control system based on neural network is proposed. The inner loop uses a general proportion adjuster and the outer loop uses a single neuron PID controller with identification implement. The identification implement is a three layer BP network based on δ-rule. Hebb study arithmetic is adopted. The system desired value and the controller output constitute the teacher's signals. Through...

In order to overcome the large delay and the uncertainty of the main-stream temperature object in fossil-fired power station, a control system based on neural network is proposed. The inner loop uses a general proportion adjuster and the outer loop uses a single neuron PID controller with identification implement. The identification implement is a three layer BP network based on δ-rule. Hebb study arithmetic is adopted. The system desired value and the controller output constitute the teacher's signals. Through simulation in various situations, it is validated that the control quality and the robustuess of this control system apparently are superiors to the general PID system.

针对火电厂主汽温被控对象的大迟延、模型不确定性,设计了基于神经网络的主汽温控制系统。系统结构为串级系统。内回路采用常规比例调节器,外回路采用带辨识器的单神经元PID控制器。辨识器为3层BP网络结构,以广义δ规则为学习规则。控制器学习算法为有监督的Hebb算法,教师信号由系统定值和辨识器输出构成。对系统在多种工况下的仿真结果表明,所设计的系统在控制品质、鲁棒性方面明显优于主汽温常规PID控制系统。

The software scheme of LN2000 system is introduced. In the processing of design for modules of system, modern control algorithm modules are designed and developed, making use of application results of modern control strategy in thermal processing control sufficiently. For neural networks control especially, the module with adaptive control based on a neuron is developed successfully. Input variables, output variables and parameters of the module is introduced particularly, and the method of non-turbulent switch...

The software scheme of LN2000 system is introduced. In the processing of design for modules of system, modern control algorithm modules are designed and developed, making use of application results of modern control strategy in thermal processing control sufficiently. For neural networks control especially, the module with adaptive control based on a neuron is developed successfully. Input variables, output variables and parameters of the module is introduced particularly, and the method of non-turbulent switch from manual control to automatic control is discussed. According to main steam temperature object in the thermal power plant, a cascade control system is established with the adaptive controller based on a neuron, and real time simulation is carried out with LN2000 DCS platform. Tracking performance and strong robust of the system are proved by real time simulation results.

介绍了LN2000分散控制系统的软件设计方案。在系统功能模块的设计过程中,充分利用先进控制策略在热工过程控制中的应用研究成果,设计并开发了先进控制算法模块。详细介绍了该模块的输入输出变量和参数设置,论述了模块内部进行的手自动无扰切换的处理方法。针对火电厂主汽温被控对象,采用基于单个神经元的自适应控制器组成串级控制系统,利用LN2000分散控制系统平台,进行实时仿真研究。结果表明,采用基于单个神经元的自适应控制器的主汽温串级控制系统具有良好的跟踪性能和较强的鲁棒性。

Main steam temperature control system in thermal power plant is a system with large time constant, long time-delay, slow time-varying and various of disturbance factors, traditional PID control generally can't satisfy the performance requirement. This paper introduces and analyses the basic theory and properties of Predictive Functional Control(PFC). The algorithm of first-order plus dead-time system is provided particularly. PFC-PID cascade control strategy is given out by combining PFC with PID control, and...

Main steam temperature control system in thermal power plant is a system with large time constant, long time-delay, slow time-varying and various of disturbance factors, traditional PID control generally can't satisfy the performance requirement. This paper introduces and analyses the basic theory and properties of Predictive Functional Control(PFC). The algorithm of first-order plus dead-time system is provided particularly. PFC-PID cascade control strategy is given out by combining PFC with PID control, and applied to main steam temperature control system in thermal power plant. Internal loop of the system adopts PID control strategy, and internal loop and the super-heater high temperature plant constitute generalized control plant of PFC. The control algorithm is simple because predictive model of PFC is first-order plus dead-time model which is gained by matching generalized control plant. Furthermore, the system with unmatched model still has favourable quality. Therefore the strategy is easy to be realized in computer or distributed control system(DCS), so it has hopeful application prospect. Many computer simulation results show that the advanced control strategy has more favorable dynamic characteristics than PID cascade control strategy in main steam temperature system, disturbance rejection and robustness.

针对火电厂主汽温控制系统大惯性、大迟延、慢时变以及扰动因素较多,常规串级PID控制难以取得满意的调节效果的特点,该文介绍并分析了预测函数控制(PFC)的基本原理和特点,给出了一阶加纯滞后系统的预测函数控制的具体算法,并将PFC和PID控制相结合,提出了PFC-PID串级主汽温控制策略。系统的内回路采用PID控制,内回路和主调节区对象构成PFC的广义被控对象,对广义被控对象进行拟合简化得到一阶加纯滞后对象,作为PFC的预测模型,算法简单;预测模型失配时,系统仍具有良好的控制品质,易于工程实现,具有较高实际应用价值。大量的仿真实验表明,采用PFC-PID串级控制策略的主汽温控制系统的动态品质明显优于采用PID串级控制策略的系统,具有较强的鲁棒性和抗干扰能力。

 
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