power variable

Through a study in the efficiency of the engine and the variable displacement pump of the dual pump, full power variable displacement hydraulic system on single bucket excavator, a math model for co-operation of engine-variable displacement pump system is established.

本文通过对双泵全功率变量液压系统的单斗液压挖掘机发动机效率、变量泵效率的研究，建立了发动机－变量泵系统共同工作的数学模型。

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A new type of composite CVT ( Continuously Variable Transmission) systems, based on dual-mode power-split planetary gear set, is of improved efficiency, power transmutability and speed variable range.

基于正反双向分汇流行星排组的一类新型复合无级变速器系统具有效率高、功率容量与速比变化范围大等特点。

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Determination of design power of wide V-belts stepless variable speed mechanism

宽V带无级变速器的设计功率的确定

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A Satellite S Band Solid State Power Amplifier with High Stability and Variable Gain

S波段高稳定可变增益星用固放

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MW variable speed constant frequency wind turbine from shenyang university of technology is a variable pitch wind turbine, it can change pitch to adjust power above rated wind speed.

由沈阳工业大学研制的MW级变速恒频风电机组属于变桨距型机组，它在额定风速以上进行变桨距调功控制。

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It also introduces current Tip speed ratio method and Variable-step hill-climbing method and proposes a fixed wind speed as a new method of pursuing maximum wind power: the golden ratio method.

接着介绍了当前流行的叶尖速比法和变步长爬山法，提出额定风速下新的最大风能追踪方法：黄金分割法。

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With the development of power system, the phenomenon of voltage fluctuations and flicker in power grid has become more and more serious, because lots of high-power variable load and other nonlinear loads flood into the power grid.

随着电力系统的发展，许多大功率变动负荷和其它非线性负荷大量接入电网，导致电网中电压波动和闪变现象日趋严重。

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The design and measured results of high power variable attenuator are presented in this paper.

介绍了高功率微波可变衰减器的设计和测量结果。

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Anti-interference in Partial Discharge Test for Current Transformer Supplied with Variable-frequency Power

基于变频电源的电流互感器局放试验抗干扰

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A Study of the Power Loss at EHD Contact Area of Continuously Variable Transmission

机械无级变速器弹流接触区功率损失的研究

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The result showed that the detection system can reflect real control properties objectively, especially reflect actual situation of system under the conditions of variable power and variable rotary inertia.

结果表明，该系统能够客观地反映出算法的实际控制性能，特别是在变功率、变转动惯量情况下能较好地反映实际情况。

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