自动运行

The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

本文的主要内容如下：1对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。

One is by knowledge Petri net First AND/OR graph was evolved by calculating cut set of relationship Matrix of parts which shows the assembly relation between the parts. Then the KPN was generated with AND/OR graph automatically. Running the KPN, an optimum assembly sequences was obtained last. The other is by Hopfield neural network.

一是利用知识PETRI网对装配过程进行建模，并自动规划出最佳装配序列的方法；这种方法首先根据产品装配的关联图，利用割集计算，自动生成产品装配的与/或图，由产品装配的与/或图转化成知识PETRI网，然后，运行此知识PETRI网，便可得产品的最佳装配序列。

The Automatic Buffer Diluter reduces user steps by preparing running buffer and sterilizing bleach solution automatically.

进口工业网的自动稀释器通过自动准备运行缓冲剂和消毒漂白溶液来减少用户的工作。

In order to extenuate the vibration with several frequencies caused by different faults, the feed forward learning control method for multi-frequency vibration is presented.

论述和推导了在转子运行状态下，用该方法实现不平衡扰动自动识别和控制参数的自动整定的理论方法、控制过程和控制算法。

After the Auto-Generating Control of power system has put into operation, the operation way of generating unit shifted from original static control to dynamo control, which affects obviously the operation of the tubular generating units of Hongjiang Hydropower Station.

电力系统自动发电控制投入运行后，发电机组的运行方式由惯有的静态控制转变为动态控制。这对洪江水电站贯流式机组影响明显。

Based on the powerful functions of calculation, statistics and graphing of Excel, making the best of its VB and macro operation, the automatic statistics and analysis of dam seepage monitoring data and drawing of corresponding graphs phreatic line, hydrograph etc.

以Excel强大的计算、统计和图形绘制功能为基础，充分利用Excel的VB编程和宏运算，实现了大坝渗流监测数据的自动统计、分析和相应图形的绘制，为水库运行管理部门提供了大坝运行系统参数和决策依据。

The results indicate,the automatic control system is stable,with good accuracy,immediacy of rapidity and so on.

运行结果表明，该自动控制系统运行稳定，具有良好的准确性、快速性和即时性等。

COMAPIL-AMF25C an integrated generator controller, the motor pool protection LCD temperature hydraulic liquid crystal display, liquid crystal display battery voltage. speed liquid crystal display and operation of power generating units into a multifunctional LCD display controller parameters. and automatic button activated a hand in turmoil, with automatic start function RS232 communication interface with the PC and pass directly linked to its Remote Computer Starter Group. the following functions

COMAPIL-AMF25C是一个综合的发电机组控制器，集合了发动机保护，温度液晶显示，油压液晶显示，电池电压液晶显示，速度液晶显示和发电机组运行电力参数液晶显示为一体的多功能控制器，提供了手动荡不安启动和自动按钮，配有自动启动功能，并能通过RS232通讯接口直接与PC相联，实现其远程计算机起动机组。

A invariable -angle control circuit of parallel resonance converter which can get high precise control of inverter operating state is designed. Using the technique of phase-lock loop, the circuit implements automatic tracking to inverter operating frequency and constant control of capacitive power factor angle.

论文设计了能在频率自动跟踪的基础上实现高精度的逆变器运行状态控制的并联型逆变器定角控制电路，该电路采用锁相环技术，实现了逆变器工作频率的自动跟踪和容性功率因数角恒定控制。

Some key part is ameliorated to meet the demands of working. This thesis mainly includes:(1) Analysing the working principle of the spring operateing mechanism, expatiating the character of the mechanism;(2) With the design aim of the spring operating mechanism, accomplishing the design of ZW□-12/630-20 outdoor HV vacuum breaker based on the systemic design theory of the spring operating mechanism, which includes spring mechanism of open-close switch; cam mechanism based on the principle of power balance; buckle-off mechanism with force-minished device; ratchet wheel mechanism with number-increased detent;(3) In the design on the spring operating mechanism for the outdoor vacuum breaker, using the air cushion device with speed controller to ensure the steady working of the spring operating mechanism;(4) Accoding the problem of daily maintenance for HV circuitbreaker, giving some effective steps of daily maintenance.

论文工作主要包括以下几个方面：(1)从真空断路器弹簧操动机构的功能原理出发，详细分析了该机构的工作原理，阐述了机构工作的基本特性；(2)根据工程实际提出了真空断路器弹簧操动机构的设计目标，在系统分析弹簧操动机构设计理论的基础上，完成了ZW□-12/630-20型户外真空断路器弹簧操动机构的设计工作，其中包括真空断路器弹簧操动机构的分合闸弹簧机构的设计；以输出力特性曲线设计机构理论演化出的功率平衡原则为基础的凸轮机构的设计；带有减力机构的滚动摩擦扣结方式的脱扣机构设计；根据实际情况增加了棘爪数量的棘轮机构设计；(3)在真空断路器弹簧操动机构的设计中，引入了速度控制模式空气缓冲器，对惯性负载起到了良好的自动缓冲效果，从而保证了真空断路器弹簧操动机构稳定、有效地运行，保证了真空断路器的动作质量；(4)针对目前真空断路器运行过程中存在的问题，提出了有效的日常维护措施。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。