With the alternating current that flows through the power distribution system, the superconducting cables do suffer some losses of energy. 对于输电系统输送的交流电,超导电缆在传导时确实会损失一些能量。
Application of Alternating Current Sampling Technology in Embedded State Monitoring System 交流采样技术在嵌入式状态监测系统中的应用
Design and Realization of Intelligent Alternating Current Test System Based on Multithreading Technique of LabWindows/ CVI 基于LabWindows/CVI的多线程技术的智能交流电量测量系统的设计与实现
Development of low heat input and spatter reduction CO_2/ MAG alternating current welding system by controlled bridge transfer process 通过CBT方法开发低热输入低飞溅CO2/MAG交流焊接系统
When the cables use in alternating current system, rated voltage of cables should be at least equal the rated voltage of the system; 当电缆使用于交流系统时,电缆的额定电压至少应等于该系统的额定电压;
Analysis and Countermeasure of Alternating Current Invasion to Direct Current System of Substation 变电站直流系统交流侵入问题的分析与对策
Ceramic insulator is widely used in alternating and direct current transmission system. But there exist some problems when using ceramic insulator in direct current transmission system. 瓷绝缘子广泛使用在交直流输电系统中,但在直流输电系统中使用还存在很多问题。
According to the change of the voltage and current, which often occurs in the single phase alternating current earthed fault of small earthed system, this article discusses the corresponding protection measures. 依据对小电流接地系统单相接地时出现的相应的电压、电流变化,讨论了对其应采取的保护措施。
The induction motor is a major portion of the alternating current speed system and the decoupling control of the induction motor is major problems bringing about excellent performance of the ( system). 感应电机是交流调速系统本体部分,感应电机的解耦控制是使系统达到优良性能的主要问题。
The research of alternating current digital servo system with permanent magnetic electromotor and KOLLMORGEN drives based on industrial computer and windows operating system was required by the Weapon Department of the Navy. 鉴於此,海军装备部要求我们研制以工控机作为数字控制器、以KOLLMORGEN驱动器为放大器、以稀土三相永磁交流同步伺服电动机为执行电机的高炮数字伺服系统。
The Application of Alternating Current Frequency Control System in Finishing Mill Group 交流变频调速系统在精轧机组上的应用
Research on Design of Alternating Current Chassis Dynamometers Electric Control System 交流底盘测功机电控系统的设计
This dissertation's emphasis is on the problem of designing a model reference adaptive controller. In order to deal with the problem that the performance of the system is influenced by the variable parameters, alternating current speed regulation control system with model reference adaptive is designed. 主要研究了模型参考自适应控制器的设计问题,设计了具有模型参考自适应的交流调速系统,解决了系统参数变化对系统性能的影响问题,与经典的方法相比较,取得了较好的效果。
Alternating Current Automatical Speed-regulating System Universal AC Servo Control Module 交流自动调速系统通用交流伺服控制模块的设计
According to the constant pressure frequency compared to the control request in view of the alternating current machine complexity and the frequency conversion velocity modulation the paper proposes the alternating current adaptable frequency governing system series nerve network inverse systems control method. 根据恒压频比控制的要求,针对交流电机参数的复杂性和变频调速特性,提出了交流电机变频调速系统的神经网络逆系统控制方法;
Workless power is an important factor in designing and running of alternating current system. A compensation device is needed in substation and the end users to save electricity. 无功功率是交流电力系统设计和运行中的一个重要因素,为了减少电能损失,需要在电力用户端与电力系统的变电所内合理配置一定的无功补偿装置。
H_ ∞ robust controller used in an alternating current torque servo system 交流转矩伺服系统H∞鲁棒控制
On the basis of analyzing the current wave in three phase alternating current system, the paper put forward a control method to realize zero current interrupt in three phase intelligent AC contactor. 本文通过对三相系统的电流波形分析,提出实现智能交流接触器三相触头的零电流分断控制方案。
The paper introduces the application of inverter in mill electro pressing and describes the control method for accuracy stoping alternating current electric drive system by means of direct current braking. 介绍了变频调速技术在轧机电动压下中的应用,主要阐述了利用变频器直流制动功能实现交流拖动系统准确停车控制的设计方法。
The thesis is researched in the following aspects of theory and practice based on the antisepsis facts of South Distillation unit: 1 The principle and process flow of the electrostatic desalter system were researched, and operating problems of the former alternating current electronic desalter system were analyzed. 本课题基于南蒸馏装置的防腐实际,在理论和实践层面上进行了以下方面的研究。(1)研究电脱盐系统的原理及工艺流程,分析原交流电脱盐系统运行中存在的问题。
Vector Control of Electric Vehicle's Alternating Current Drive System 电动汽车交流驱动系统的矢量控制
Combines a characteristic of alternating current windlass electricity control system, explores the specific method and request of installing alternating current windlass electricity control system protection unit, suggests the necessity of formulating protection unit standard for alternating current windlass programmable controller electricity control system. 结合交流提升机电控系统的特点,探讨了交流提升机电控系统保护装置设置的具体方法和要求,建议制定交流提升机可编程控制器电控系统保护装置设置规范的必要性。
Control Strategy of Alternating Current Position Servo System for Air Defense Multiple Launch Rockets 防空多管火箭炮交流位置伺服系统的控制策略
The paper mainly introduce the design scheme of alternating current chassis dynamometers electric control system. 文章主要给出了交流底盘测功机电控系统的设计方案。
Research on USB Technology and Application to Parameters of Alternating Current Measurement System USB技术的研究及在交流电参数测试系统中的应用
The article discusses simply the control theory of alternating current Variable Voltage Variable Frequency timing system, emphatically discusses the application of longdistance supervision control in elevator system. 文章介绍了电梯交流变压变频调速系统的控制原理,讨论了远程监控在电梯系统中的应用。
The circuit of controlling synthesize power cupboard is half bridge controlling rectification circuit, whose input is alternating current form railway system. The output of rectification circuit passes the circuit consisting of a resistor and a capacitor, which is a voltage wave filter. 电源综合柜的主电路为半控桥式整流电路,输入为铁路系统的交流电压,其输出的整流电压经电抗器,电容滤波后,向蓄电池充电,并向机车控制电路供电。
Consider the system is generally used in the field, alternating current source is not offered, the system adopts the battery to supply power, and charged by the solar energy panel, make the system can be used normally in the field too. 考虑到系统一般用在野外,没有交流电源提供,系统采用蓄电池供电,并由太阳能电池对蓄电池进行充电,使系统在野外也可以正常使用。
In the alternating current control system, using PI regulator of speed change integral can achieve the control performance index such as small overshoot, non-oscillating state, and no steady-state error on condition that control sampling period of DSP is equal to that of alternating current power. 在数字信号微处理器控制采样周期等于交流电源周期的交流控制系统中,采用变速积分PI调节在系统带载情况下更易获得小超调、无振荡、无静差的控制性能指标。