顺序控制

This research can help to reduce the aggradation and control the color pollute in the order transportation of crude oil and diesel oil in the pipeline.

本试验的结论将有助于控制与减少顺序输送中原油在管道中的沉积成膜量，并降低对后续成品油的色度污染。可应用于长距离输油管道的顺序输送中。

The assembly of complex joints, welding sequence, precision control technology and truss arching are also presented.

并对复杂节点组装顺序、焊接顺序、精度控制技术和桁架起拱进行了研究。

We compare and analyse these methods by Monte Carle simulation method on computer.

在多因素控制与诊断方面，本文将两种质量诊断理论的思想应用于多因素诊断，提出了多因素选图与休图相结合以及单因素选图与休图相结合的两种多因素诊断方法，指出了现有多元质量控制方法中存在的缺点，并提出了逐步诊断的思路和三种用于多因素诊断的逐步诊断方法，即顺序统计量逐步诊断法、最小距离逐步诊断法和两种质量逐步诊断法，然后通过统计模拟进行了分析和比较。

An automatic control system in which various control units are linked in sequence.

各个控制单元按顺序连接的自动控制系统。

An automatic control system in which various control units are linked in sequence, each control

各个控制单元按顺序连接的自动控制系统，每个单元控制下个单元的操作。

PLC is one kind on the basis of technology of digital computer, electronic control device designed to use under the environment of industry specially, adopt it by memory that can programme, it is last user order not to used for,through figure or introductions of simulation /export, finish such functions confirmed as a series of logic , order , timing , counting , operation ,etc., to control all kinds of integrated equipment of electromechanics and production process.

PLC是一种基于数字计算机技术、专为在工业环境下应用而设计的电子控制装置，它采用可编程序的存储器，用来存储用户指令，通过数字或模拟的输入/输出，完成一系列逻辑、顺序、定时、记数、运算等确定的功能，来控制各种类型的机电一体化设备和生产过程。

The high speed advantage of FPGA's operation is made hard to demonstrate for the inconsequence in structural arrangement. The pipeline technology had well solved this problem. We presents a new pipeline optimization technology of inventer's control system based on FPGA,and completed the optimization design of the inventer controller. Analyzed the design process in detail and offered a kind of thought for the people who devoted to FPGA's application in power electronic field.

分析了"流水线操作"等设计优化问题，并针对逆变器控制系统中，控制系统算法呈多层结构，且层与层之间还有数据流联系，其执行顺序和数据流的走向较为复杂，不利于直接采用流水线技术进行设计的特点，提出一种全新的"分层多级流水线"设计技术，有效地解决了复杂控制系统的流水线优化设计问题。

Batch controllers are prime examples, where the sequence and maintaining the process variables are intertwined so closely that the benefits of having a programmable controller to do the sequential logic outweighs some of the disadvantages of not having a distributed control system.

批量控制器就是一个主要的例子，这里顺序量和保持过程参量稳定相互影响，持过程参量稳定相互影响，使用可编程控制器做顺序逻辑控制的好处胜于不使用DCS的坏处。

At present, the relay contactor control model is also the main stream for the simple control system (such as, multi-motor sequence start, automatic two-speed motor, etc.) in industrial present control.

目前，在工业现场控制中，对于简单控制系统(如：多台电机的顺序启动，双速电机的自动控制等)仍然以继电接触器控制模式为主。

This thesis proposed the design and implementation of an ASIC for the motor control with DTC technology. Note that this ASIC is implemented by cell-based Design style with Verilog language.The basic principle of the Direct Torque Control is to select the switch sequence of the inverter. Those switches will control the magnetism and torque of the stator, to induce a fast response of the induction motor. Furthermore, the d-q axle's static coordinate, which is transferred from both the three-phase current and voltage, is used to compute the stator's magnetism and torque. By comparing with original values, those magnetism and torque will be calculated and set to new data. Then the switching table and the hysteresis controller are decided with the new data to generate a voltage vector and to control the stator magnetism and torque.

直接转矩控制的基本原理为经由侦测马达定子磁通与转子转速，来适当的选择变频器功率电晶体的切换状态，以获得快速且不易受外在环境影响的马达控制响应；首先，根据量测三相电流与利用变频器的切换状态取得马达的三相电压，将其转换至d-q轴静止座标，然后藉此估测马达的磁通量与转矩量，再分别与侦测的定子磁通量和转矩量比较后，得到定子磁通量与转矩量比较的结果，再利用DTC电压向量切换表(DTC Voltage Vector Switching table)，依定子磁通与转矩的比较值及马达所在的角度位置，来选择一个适当的电压向量，进而依切换顺序来激发功率电晶体，达到控制感应马达的目的。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。