查询词典 wave power

By the balance of communication link power, SNR balance guidelines and BER balance, under the base to meet the requirements of systems and not affecting thequality of call. Finally, the open-loop/closed-loop variable step length reverse power control is introduced, its principle is under the original open-loop power control to select suitable power control step by the new power control bit, and achieves a balanced system fastest and most effective.Keywords: Step, Power-control, Brethren interference, Proximity effect

依据通信链路的功率平衡准则、信噪比平衡准则和误码率平衡准则，在满足系统要求和不影响通话质量的基础上，最后提出了开环/闭环可变步长的反向功率控制，其原理是在原有的开环功率控制的基础上，依据新的功率控制比特，来选取合适的功率控制步长，以最快、最有效的方法使系统达到平衡。

Provinces and cities for many years the company has been appointed as "heavy contract, keep promise" enterprise,"AAA" credit enterprise and the "civilization of advanced unit" on behalf of projects in recent years has Baoqing Heilongjiang Power Plant cooling towers lining anti-corrosion plugging, Jiangsu Suqian power plant 100 m chimney slipform construction, Zhejiang Jiande chimney power plant 120 meters beacon preservative, Zhejiang Xiaoshan Power Company Limited, the main steel frame a new anti-corrosion, Shandong Rip Biochemical Co., Ltd.-owned power plant chimney 60 meters of new, Inner Mongolia Power Company Limited chimney brush color Central, Shaanxi society Cement Co., Ltd., limestone are color plates of the Treasury and the external walls of the installation of anti-corrosion and so on, as enterprises and institutions across the country to solve many difficult engineering construction of the anti-corrosion.

公司连续多年被省市命为&重合同、守信用&企业，& AAA&资信企业和&文明建设先进单位&近年来代表工程有黑龙江宝清热电厂冷却塔内壁防腐堵漏，江苏宿迁电厂100 米烟囱滑模施工，浙江建德热电厂 120 米烟囱航标防腐，浙江萧山新发电有限公司主体钢架防腐，山东瑞普生化有限公司自备电厂 60 米烟囱新建，内蒙古发电有限公司烟囱刷色环，陕西社会水泥有限公司，石灰石均化库彩钢板安装及外墙防腐等，为全国各企事业单位解决了不少高难度修建防腐工程。

Results With respect to the numbers and lower levels of the interferences within the driving source when FIT was powered respectively by the three power sources, the battery output 6 interferences, the highest power of which achieved -78.25 dBm; the linear power source output 6 interferences, the highest power of which achieved -67.11 dBm; the switching power source output 15 interferences, the highest power of which achieved -35.83 dBm.

结果：就3种电源分别供电下的激励源中的干扰的个数和功率水平而言，电池供电下的激励源中存在6个干扰，功率高达－78.25dBm；线性稳压电源供电下的激励源中存在6个干扰，功率高达－67.11dBm；开关稳压电源供电下的激励源中存在15个干扰，功率高达－35.83dBm。

With the development of power electronics, nonlinear loads are widely used in power system, which bring about serious harmonics pollution and big current of reactive power. In the same time, the load including high-tech and high precision is developing rapidly, which ask for high quality power. In the other hand, the power net is becoming bigger, the disturbers between different parts of the power net becoming more serious.

随着电力电子技术的发展，越来越多的非线性负载投入电网中，谐波和无功对电网的污染越来越严重，同时，高精密负荷的比重迅速增大，对整个电网电能质量要求越来越高；另一方面，电网的并网规模越来越大，电网各部分之间的干扰也不断加重，这些都严重的威胁着用户电能质量和电网的运行安全。

Mainly for power system automation, power electronics, power equipment, online monitoring and condition-based maintenance, smart appliances, such as professional orientation, and products are mainly including the pumping station integrated automation system, data pass business platform, power management systems, substation automation system, power generation plant electric automation system, power system equipment, the main-line monitoring and condition-based maintenance systems, distribution network automation system, such as near 10 species, widely used in electricity, water, petrochemical, metallurgy, railway and other industries, the product has achieved a modular, standardized, seriation, the main technology in the domestic and international advanced level of similar products.

主要面向电力系统自动化、电力电子、电力设备在线监测和状态检修、智能电器等专业方向，产品主要包括泵房综合自动化系统、数据通业务平台、电量管理系统、变电站自动化系统、发电厂厂用电自动化系统、电力系统主设备在线监测和状态检修系统、配网自动化系统等近十个品种，广泛应用于电力、水利、石油化工、冶金、铁路等行业，产品已实现了模块化、标准化、系列化，主要技术处于国内、国际同类产品的先进水平。

In order to reduce the production process mill system power supply system of the impact of power quality,improve the stability of equipment to meet national standards and power quality of the electricity sector of the target requirements,in the rolling mill factory production lines to install a set of 30kv side bus SVC.It restrained the molestations of power plants lines,make important roles of improve power quality,improve power factor,and level off the run level of electric web.

为了减轻轧机系统生产过程中非线性冲击负荷对供电系统电能质量的影响，提高设备运行的稳定性，满足国家标准和电力部门对电能质量指标的要求，在生产线30kV母线侧，装设了一套静止无功补偿装置，结果是把生产线对供电系统电能质量的干扰抑制到一个较低水平，对改善供电系统的电能质量，提高功率因数，稳定电网运行水平起到了极其重要的作用。

This product include many kinds of measurement,monitoring,warining,diaplay,communication function,it can measure four quadrant reactive whole fundamental wave and time-sharing fundamental waveelectric quantity;can measure forward and reverse of the active and reactive'smaximal demand and time-sharing demand;can measure each kind of power submultiple,active power,reactive power,apparent power,and so on;can measure and record each kind of pressure loss,current loss and

本产品集各种计量、监控、报警、显示、通讯功能于一身，能计量四象限无功总基波电量及分时基波电量；能计量正反向有功和无功总最大需量及分时最大需量；能测量各相功率因数、有功功率、无功功率、视在功率等；能检测并记录各相失压、失流及三相全失压等事件；能实现远程和红外抄表、编程、监测和校准；也是电力负荷管理系统的配套终端产品。

With development of power electronic technology, power converters have been used widely in switching power supply, motor-driven and controlled, compensate of transmission-line system of electric power and harmonious wave manage.

随着电力电子技术的发展，功率变换器在开关电源、电机驱动控制、电网的无功补偿和谐波治理等领域得到广泛的应用。

Precision instrument: Mode of relative power of %26plusmn;0.02dB or %26plusmn;0.5%: Measuring %26plusmn;0.02dB or %26plusmn;0.5% are inside limits; Exceed measure limits to installed at 0 o'clock for %26plusmn;0.04dB or %26plusmn;1%: In the %26plusmn;0.5% of the most acute limits complete scale Power consults power outputs: 100mW precision:%26plusmn;1.2% The face plate after general technology index outputs: Imitate 0-1V(does not take digital filter wave) or calibration coefficient is amended, 1K%26Omega; outputs impedance, BNC connects contact voltage: 220V and 240Vac,+ 5%~10%, 48~66Hz power asks: Weight of the biggest 8W(10VA): Suttle 2.6 kilograms of dimension: 88mm %26times;212mm %26times;273mmgrows

精度 仪器：%26plusmn；0.02dB或%26plusmn；0.5%相对功率模式：在测量规模内为%26plusmn；0.02dB或%26plusmn；0.5%；超出测量规模为%26plusmn；0.04dB或%26plusmn；1%零点设置：在最灵敏的规模全刻度的%26plusmn；0.5%功率参考功率输出：100mW 精度：%26plusmn；1.2%一般技术指标后面板输出：模拟0-1V或校准系数批改，1K%26Omega；输出阻抗，BNC连贯头电压：220V和240Vac，+5%~10%，48~66Hz 功率要求：最大8W(10VA)分量：净重2.6公斤尺寸：88mm%26times；212mm%26times；273mm长

Furthermore, we discussed and pointed out the exact distinction of the meanings of reactive current, irregular current, reactive power and irregular power, then we give them proper mathematic definition with uniformed conception respectively, we established new power system, which is helpful for people to understand about nonsinusoidal system and its energy conversion much more deeply and substantialy, especially to gain new ideas on depressing and eliminating harmonic waves, and some new design method for more satisfying correcting power function, and different kinds of compensation and eliminating harmonic wave systems.

本文分析了传统的正弦系统有关定义及其与非正弦系统的异同，指出了前者存在的缺点，结合所给特例，讨论并确定了时域中非正弦系统有功电流和有功功率的严格定义，阐明了畸变功率在非正弦系统能量转换过程中所起的作用，在上述基础上，进而讨论并严格区分子无功电流、畸变电流、无功功率、畸变功率等的含义，并利用变分法给出了与上述含义相一致的各个概念的严格的数学定义；提出了新的功率体系。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。