The methods of calculating turbine axial differential expansion on-line and controlling axial differential expansion by c changing steam temperature increment were investigated. 研究了汽轮机轴向胀差的实时在线计算以及通过变温度速率控制胀差的方法。
The differential and the identity expounded between new energy and traditional energy from welfare increment of energy economy. 从能源经济所产生的福利增量的角度来表达新能源与传统能源的差别与同一。
Basing on the combing the Equivalent Differential Increment Theory ( EDIT) with the Equivalent Polyhedron Method ( EPM), the optimum real time economical adjustment of regulating peak load for each boiler about power plant is presented. 应用等微增原理与正多面体相结合的方法实现了电站锅炉机组调峰时各炉实时经济负荷分配与实施。
This paper, by adopting variable input forward feedback. Variable differential and cutting the PID output increment, can greatly reduce the rising time of process variables and speed up its dynamic response without setting two-freedom coefficients and inertial to realize the function of two-freedom. 采用目标变量输入点前馈、变量微分、切除调节器输出增量的办法,不设二自由度化系数,不设惯性环节实现二自由度化功能,可明显减少过程变量上升时间加快动态响应。
Then, it studied the different control effect of the three control regulation: Proportional control, Integration control and Differential control in the increment PID algorithm. 通过调节PID参数控制温度的过程,研究了增量式PID算式中的三种控制规律:比例控制规律,积分控制规律,微分控制规律在温度控制过程中所起的不同作用。
An IMAC ( Improved Model Algorithmic Control) via introducing differential item of system output errors in index function is presented. Because pulse response predictive model of the increment is adopted, IMAC is more suitable for industry process control. 通过在指标函数中引入系统输出误差的微分项,提出一种改进的模型算法控制(IMAC),由于采用了增量式的脉冲响应预测模型,因此更适用于工业过程控制。
Cause analysis of differential expansion increment for highpressure cylinder of a 200 MW steam turbine unit 200MW汽轮机组高压胀差增大原因分析
Is also the ratio between the differential of the function at the elastic fulcrum and the increment of the initial elastic straight line at the elastic fulcrum. 也是函数在弹性支点的微分与初始弹性直线在弹性支点的增量之比。
The remedial measures to eliminate differential expansion increment of highpressure cylinder for a 200 MW steam turbine unit in operation at one power plant have been presented. 介绍某电厂200MW汽轮机组运行时高压胀差增大的处理措施。
The example indicates that the results of DCPM-FGA are small. Comparing with the method of equal differential increment rate, DCPM-FGA has better optimization quality. The AGC software of hydropower station based on DCPM-FGA can reduce water consume, and enhance the economic performance of hydropower stations. 实例计算结果表明,与等微增率方法相比,基于DCPM-FGA的水电站AGC具有更好的优化品质,能有效降低水量损耗,提高电站的经济效益。
Conformational changes resulted in wavelength λ 210~ 310nm ultraviolet differential spectra, fluctuations of fluorescence intensity at λ 330nm emission peak, increment of fluorescence polarization, and emersion of differential scanning calorimetric curves. 构象变化导致λ210~310nm紫外差光谱的出现、荧光偏振度的增加、在λ330nm荧光发射峰发射强度的改变及差示扫描量热曲线的产生。
The results show that: current density creases with the higher differential pressure between the inlet and outlet, but the increment is diminishing; 结果表明:随着进、出口之间压差的增加,电流密度是增大的,但是增大的幅度是逐渐降低的;
The Optimization of Matching the Surfaces of Heat Exchanger by Differential Increment Analysis 用微元分析法进行换热器表面匹配的优化
A new mathematical model of unsteady aerodynamics of airplane at high angles of attack is developed, with employment of a one order differential equation to describe the aerodynamic increment caused by nonlinear unsteady effects. 采用一阶微分方程描述由非线性非定常效应引起的气动力增量,从而建立了一种新的飞机大攻角非定常气动力数学模型。
There are many problems for the professional and technical civil servants wage through careful analysis, such as lack of market competitiveness, lack of flexibility wage, the wage structure is irrational, the wage differential is too small, the lack of appropriate salary increment mechanism. 本文通过细致的分析,认为目前的专业技术类公务员工资设计存在着诸多问题,如缺乏市场竞争力、工资缺乏弹性、工资结构不合理、工资级差过小、缺乏相应的增薪机制等问题。
Results of differential heat analysis show that once the ultrasonic power is beyond 300W, solidification initial temperature decreases with the increment of ultrasonic power. 微分热分析结果表明,功率小于300W时,超声波处理对凝固初始温度基本没有影响。随着输入功率的提高,凝固初始温度逐渐降低。