Economic analysis of the second unit varying duty operation in shengli power plant

胜利发电厂2号机组 变 工况运行经济性分析

After the transformation of the flow path of a certain unit there exits excessive negative differential expansion under normal operation condition which seriously impacts the varying duty and the variable parameter characteristics of the unit .

某型号机组经过通流部分改造后存在着正常运行状态下负胀差偏大的问题，严重影响机组的 变 负荷特性及变工况特性。

Furthermore equivalent apodization can also be achieved by varying the sampling duty cycle . 2 . Coupled-mode theory and transfer matrix theory .

利用重构一等效啁啾技术还可通过 改变取样 占 空比来对光栅进行等效切趾。2.耦合模理论和传输矩阵理论。

The result indicates that the model can simulate the varying duty working characteristics of nuclear steam turbine plant accurately and meets the needs of simulation analysis work on secondary system of nuclear power plant .

结果表明，该模型能准确模拟核汽轮机装置的 变 负荷运行特性，满足核动力二回路系统实时仿真分析要求。

Faced with complex and varying transactions the improper expanding of collateral duty hinders directly the realization of the function of collateral duty .

面对复杂 多变的交易活动，合同附随 义务呈现不当扩张的趋势，直接影响合同附随义务功能价值的实现。

The paper presents an new method of continuously varying capacitance which is based on the principle of PWM . Two power capacitors are switched under the control of IGBT or Power MOSFET and the capacitance continuously varies when pulse duty cycle is changed .

本文提出了一种新的电力电容器调容方法，该方法基于PWM控制原理，用电力电子开关控制两组电容器的投切，通过调节控制脉冲的 占 空比连续 调节电容。

Introduces three methods that can adjust refrigerating output according to the variation of load aimed at the varying duty condition during the practical operation process of refrigeration system frequency inverter technique parallel unit with several compressors and liquid refrigerant storing method .

针对制冷系统实际运行过程中存在的 变 负荷工况，介绍三种根据负荷变化调节制冷量的方法：变频技术、多机并联压缩机组以及液体制冷剂储存方法。

By means of the model the dynamic characteristics of marine nuclear steam turbine plant under the rapidly varying duty working conditions is calculated and analyzed .

利用该仿真模型对快速 变 负荷工况下船用核汽轮机装置的动态特性进行了计算分析。