查询词典 in power

By building the low frequency model of the system, in the rectifying mode and regenerating mode, the dynamic adjusting procedure of realization for unity power factor, absorbing or regenerating capacitive reactive power, inductive reactive power from or to power grid are investigated.

通过建立系统低频数学模型，分别在顺变和逆变状态下，探讨系统实现单位功率因数、从电网吸收或回馈容性、感性无功功率的动态调节过程。

SP Series Static Phase Advancers qre on-site reactive power comprnsating devices that our company has developed fo large power three-phase winding asynchronous motors.A phase advancer is wired in the circuit of motor rotor to increase power factor of the motor,decrease stator current, lower the olss of lowvoltage motor and power transmission lines,so as to achieve the goal of energysaving.

南通新业电子 HPX静止式进相器 HPX static phase advancer 概述 General Description HPX静止式进相器是本公司专为大功率三相绕线式异步电动机研制的就地无功率补偿装置，它串接于电机的转子回路，用以提高电机的功率因数，减小定子电流，降低电机和输电线路的损耗，从而达到节能降耗目的。

Based on mechanism and vehicle theories theoretical analysis is pursued and normal driving conditions are put forward. The relations are analyzed between load distribution and power consumption. Mechanical formula is proposed. Furthermore in this paper the theoretical model of the total power consumption is established, and the relations of the total minimized power consumption with the air-cushion pressure and the fan revolution are discussed. The optimum operation point is put forward. The dynamic digital simulation studies are carried out on the operating procedure of the half-track air-cushion vehicle on soft terrain. Mechanical parameters and soil mechanics characteristics affecting vehicle power consumption and riding performance are analyzed. At the same time according to the model formula, the automation control problem is discussed. It is a theoretical instruction for further automation control.

本文还从力学和车辆原理的角度进行了理论分析，推导了半履带式气垫车的需求功率及正常行驶条件，研究了气垫压力和功率消耗之间的关系，提出了力学模型公式；建立了半履带式气垫车总功率消耗的理论模型，研究了最小功率消耗时功率与垫压及表征气垫车行驶状态的各参数的关系，分析了相应的影响因素，并提出了最佳工作状态的定义；同时进行了半履带式气垫车在软地面的行驶过程的动态数字仿真试验研究工作，对影响车辆功率消耗和行驶平顺性的各力学参数和土壤参数进行了分析，得到了各运行状态参数的变化规律，验证了最佳工作状态和最佳垫压的理论，根据力学模型公式对进一步的自动控制问题进行了探讨，为系统的控制提供了理论指导。

When the system is at work, IF output power is achieved through adjusting inverter trigger angular frequency, which can always make the power out put be in the biggest state . Through the effect of the voltage and current closed-loop ,IF power achieve constant power output.

由于系统在工作时，中频电源的输出功率是通过调节逆变触发角频率来实现的，这样就可以始终使输出的功率处于给定的最大状态，并且通过电压和电流闭环作用，使中频电源达到恒功率输出。

Best Calc highlightsLarge display with lots of graphic indicatorsPrecedence mode - to reduce entering parenthesis (e.g. 2+2-2=6)Operations and conversions can be performed in binary, octal, decimal, and hexadecimal formCalculate basic arithmetic functionsCalculate the root, square root or cube root of a numberRaise to power functionsLogarithmic and exponent functionsCalculate sine, cosine, tangent, arc sine, arc cosine or arc tangentCalculate in degrees, radians or grads, mil, revDisplays results in normal, scientific, or fix modeMemory operations Call last result functionOperations with big and small numbers are supported (up to ten in 308th power or ten in minus 308th power)and much more to explore!

最佳钙highlightsLarge模式显示indicatorsPrecedence与大量的图形-减少输入括号（如2 +2-2 = 6）业务和十进制的转换，可进行二进制，八进制，和十六进制formCalculate基本算术functionsCalculate根，平方根或多维数据集的numberRaise根电源functionsLogarithmic和指数functionsCalculate正弦，余弦，正切，圆弧正弦，余弦弧或弧tangentCalculate度数，弧度或梯度，密尔，revDisplays结果正常，科学化，或修复modeMemory行动电话与大，小号码的最后结果functionOperations支持（最多10个在零下308电源或功率10 308）以及更多探索！

Through analysis of the characteristics of power flow, transmission efficiency and self-lock of a combined planetary transmission, a design method based on the power design parameter of the bifurcated power of the main branch and the total input power ratio was developed in this paper.

对组合式行星传动的功率流特性、传动效率、自锁条件等进行了分析，提出了以系统主支路功率流大小与输入总功率的比值为功率参数的设计方法，并给出了系统实现功率分流传动和自锁的判别准则。

Power-law fluid is used to describe the Non-newtonian rheological property of the produced fluid in a polymer-driving well; the governing equations, boundary and initial equations of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is established in bipolar coordinates system; formulas of instantaneous flow rate and stress distribution on the outwall of the inner cylinder of the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially are established.

在理论上，用幂律流体模型描述了聚合物驱油井产出液的非Newton流变性；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中非定常流的控制方程及边界条件和初始条件方程；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中流动时瞬时流量和流体在内管壁上的压力分布计算公式。

ABSTRACT With the development of the ultra-high-voltage power systems and the power supply cables in cities, the charging imaginary power of the high-tension bus bar has become the key problem of the power systems.

随着超高压电网的发展和城市市区供电电缆的增加，高压线路上的充电无功功率已成为电网运行的主要问题之一。

Electronic equipment produces busywork and harmonic components that not only increase unnecessary loading and power consumption in public power equipment. But also harmonic components insert into public power system that causes deteriorating of power quality. Risks increase into break and mistake of precision instrument.

而电力设备所产生的虚功与谐波不仅无谓的加重公用电源设备的负担，增加无谓的功率消耗，更因为谐波成份的加入而使得电源品质恶化，增加精密设备损坏与误动作的风险。

Input power in the technical parmeters list is average power of the allowable power calculated from the antigluing capability of gear contact strength and the allowable power calculated from the antibending capability of the teeth of cogwheel of the turbine.

技术参数表中的"输入功率"；是按齿轮接触强度"抗胶合能力"计算的许用功率和按蜗轮轮齿"抗弯曲能力"计算的许用功率二者的平均功率。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。