The alternating current voltage adjustment and speed adjustment energy sparing technique is introduced. 并且简单分析了异步电动机的损耗和交流调压、调速节能技术。
For many application cases, such as voltage adjustment and power flow matching, methods based on bus-type extended load flow calculation can be effective. 对于电网电压调节和潮流模型匹配等许多应用场合,可采用基于节点类型扩展的潮流计算方法。
The application for bus-type extended load flow in voltage adjustment and network power flow matching was studied in this paper. 研究节点类型扩展潮流计算方法在电网电压调节和潮流模型匹配中的应用。
Expanded Estimation Model of Voltage Adjustment by Shunt VAR Compensation and Its Dispatching Experimentation and Simulation 无功补偿调压的拓展估算模型及其试验仿真
It adopts SCR with large power to establish the voltage adjustment circuit, so the AC motor can be started with low voltage. 它采用大功率的SCR组成电压调节电路,这样交流电动机就可以低压起动。
Discussion on Measurement Method of Voltage Adjustment Ratio for Large Generator 大型发电机组电压调差率测量方法探讨
The Design and Analysis Of AC Voltage adjustment Device Controlling By Optocoupler Rlelay; parallel relay adder 光耦合固体继电器控制交流调压器的设计与分析并行继电器(式)加法器
It is suggested that the additional voltage adjustment for excitation regulator of large generator should be put into service. 建议大型发电机组励磁调节器应投入附加调差。
The study shows that the variation of a bias voltage of the detector of the pulse LD range system only compensates the variation of temperature, as a result, a scheme to restrain background noise by adding voltage adjustment with background noise in strong light is proposed. 研究表明,LD测距系统中探测器偏压的变化只补偿温度变化,由此提出,在背景光照射较强时让背景噪声参与偏压调整从而抑制背景噪声的方案。
Analysis and Design of the Contactless Voltage Adjustment 无触点调压方式的分析与设计
The problems concerning the voltage adjustment of the power supply system of pulsed laser and its accuracy are discussed. 本文讨论了脉冲激光电源系统的电压调节和调压精度问题。
This paper introduces the work principle and the calculation of the contactless voltage adjustment of a new-type voltage transformer and its advantages. 本文介绍了一种新型的变压器无触点调压的工作原理、计算方法及这种调压方式的优点。
There had close relation between voltage adjustment and reactive power distribution in ship power system. 船舶电力系统的电压调节和无功功率分配密切相关。
This paper makes a detailed analysis as to the fundamental circuits and fundamental principles of Boost DC-DC converter, SPWM inverter and AC voltage adjustment circuit in the power supply. At the same time, the paper introduces the choice of the parameters and the design of control. 本文分别对逆变电源中的Boost升压斩波电路、SPWM逆变电路以及斩控式交流调压电路从基本拓扑结构和工作原理上进行了详尽阐述,同时介绍了各功能模块的参数选取和控制设计。
On considering the voltage adjustment stability and device controllable margin, the concept of variable inverse time delay is introduced. 考虑到电压调整的平稳性和控制设备的可控冗余度,融入了可变反时限延迟时间的概念。
Study on soft-start with three-phase AC voltage adjustment for three-phase asynchronous motor and on energy saving control 三相异步电动机的三相交流调压软启动及节能控制的研究
The Transformer of Binary Windings and Its Application to AC Voltage Adjustment and Stabilization 二进制绕组变压器及在交流调压稳压中的应用
This paper introduces a new AC voltage adjustment device controlling by optocoupler relay and gives detailed analysis of it's circuit. 对一种用光耦合继电器控制的交流调压器进行了介绍和分析,给出了该调压器的特点。
The zero, gain, reference voltage adjustment has been cancelled by hardware design. 硬件电路取消零点、增益、基准电压参数手动调整,软件编程设定AD7730的自校准、模拟输入量程。
When the voltage adjustment ratio taken the rated reactive power as per unit is calculated for generator-transformer unit, it is taken 3% around, which is helpful to raise the automatic control ability of power system voltage, and improve power system static stability and voltage stability. 对于发电机变压器组,调差率以额定无功为标么值计算时,取3%左右,有利于提高电力系统电压自动控制能力,并可提高电力系统静态稳定和电压稳定。
Simulation of Single-Phase AC/ AC Voltage Adjustment System Based on Matlab/ Simulink Matlab/Simulink在单相交流调压电路仿真中的应用
Principle analysis on capacitor in voltage adjustment and power factor improvement 电容器在电压调整和功率因数提高中的作用原理分析
Voltage adjustment by transformer taps at medium_low voltage supply are also considered. 同时也考虑了变压器分接头对中低压侧电压的调整。
As for the method of continuous charging, discussions are mainly directed to the methods of voltage adjustment, the optimization design of the parameters and the accuracy of the various voltage adjustment methods. 对于连续充电方式,主要讨论其电压调节方式、参数的最佳化设计方法以及各种调压方式的精度问题。
The Single-Stage isolated inverters can fulfill all the functions of two-stage inverters in one stage, including DC/ AC inverter, voltage adjustment and electrical isolation. 单级式隔离逆变技术只需一级功率变换就可完成传统两级逆变电路的全部功能包括DC/AC逆变、电压调整及电气隔离。
The experiments of start-up stage and power-generation voltage regulator stage are carried out to test the current loop, obtain the motor mover position curve data and verify the stability of voltage adjustment. 进行了起动阶段和发电阶段电压调整情况的实验,测试了电流环,获得了动子位置曲线数据,验证了电压调整的平稳性。
Against output voltage of the CPT system and the load impedance changes in the system frequency of the question, at the same time taking into account the complexity of the problem, this paper used in the pick-up side to join DC output voltage adjustment link method. 针对非接触电能传输系统输出电压受负载阻抗和系统工作频率变化的影响的问题,同时考虑到问题的复杂性,本文采用在拾取电压输出侧加入直流调整环节的方法。
This method, compared with the conventional droop control method, can improve the characteristics of the voltage adjustment and energy management. Finally, the feasibility of the method is verified by simulation results. 该方法较传统下垂控制方法,改善了电压调整和能量管理的特性,仿真结果验证了该方法的优越性。
The system host computer installed in the interior which provide a friendly interactive interface for railway signaling maintenance personnel, it can display the data by system collected and the track circuit voltage adjustment by system. 系统上位机安装在室内,主要为铁路信号维修人员提供友好的人机交互界面,将系统采集的数据和调压情况进行显示,当系统判断轨道电路电压为故障电压时,进行故障报警。
The system lower machine installed in the track transformer box of the outdoor track circuit receiving end which is mainly used for data acquisition, logic operation, the drive voltage adjustment and data transmission. 系统下位机安装在室外轨道电路受电端信号变压器箱内,主要用于数据采集、逻辑运算、驱动调压和数据传输等。