查询词典 steady state

In steady-state, DVR can be used to compensate the voltage drop caused by circuit reactance.

在稳态方面，由动态电压调整器来补偿线路电抗所造成的压降，提高电压之稳定性。

The technique made full use of the characteristic of PR controller which can realize zero steady-state error in AC input signal in stationary frame. In the method, the active and reactive current component in the vector control strategy were transformed in the stationary frame to achieve the objective of keeping the DC-link voltage constant, adjusting the power factor and decoupling the active and reactive power. Compared with conventional double close-loop proportional integral controller, the PR technique is better in harmonic compensation without the complex rotating frame transformation and the couple or feedback voltage which is easily influenced by temperature and circuit parameters. The control algorithm is easy to be realized while the robustness and power quality is improved.

该方法充分利用了PR控制器能够在静止坐标系下对交流输入信号无静差控制的优势，将矢量控制策略下的有功电流和无功电流分量转换到静止坐标系下进行调节，实现网侧变换器维持直流电压稳定和调节功率因数的控制任务和双馈电机有功、无功功率的解耦控制，与传统的双闭环PI控制相比，该策略无需繁琐的坐标旋转变换，不存在受温度及电路参数影响的耦合项和前馈补偿项，且易于实现对系统低次谐波电流的补偿，减小了控制算法实现难度，提高了控制系统的鲁棒性和电网电能质量。

Most of the initial circulation used to reach a steady-state prior to reciprocation is deleted from the plot.

被用于的最初循环的在往复之前到达稳定从剧情被删除。

Nonlinear regressor model,quadratic blending model and radial basis functionneural network model were employed to describe the steady-state behavior of the gasoline blending process ,and the least squares algorithm was utilized to identify parameters in these models.

采用非线性回归模型、二次型调合模型以及基于RBF神经网络的并联模型等多种模型，对汽油调合过程的稳态特性进行建模与参数辨识。

This discussion of steady-state aerodynamics not only outlines sources of textbook material, but also provides an insight into the relatedness to other factors.

定常空气动力学的讨论不仅概述了教科书上的材料，而且提供了对有关的其它因素的看法。

A new switching scheme to the gain of variable structure control signals is proposed. The following important open problems in standard VS-MRAC and MRAC are solved by using the scheme: 1 . a prespecified transient and steady-state performance index for tracking error can be achieved without requiring any information about the plant high frequency gain sign when relative degree of modelled part of plant is one, and 2 . it is shown that as long as the performance indexes are guaranteed for the auxiliary errors, each of which in dynamics is a sub-system with relative degree one, the tracing error will converge to a small residual set in a prespecified transient time when relative degree of modelled part of plant is greater than one.

提出了一种控制增益可切换的变结构自适应律，解决了如下变结构模型参考自适应控制（包括基于调参律的模型参考自适应控制）理论研究中长期没有解决的问题：当对象建模部分相对阶为1、高频增益符号未知且存在非线性输入扰动和未建模动态等情况下，系统跟踪误差可满足预先给定的动态和稳态性能指标；当对象建模部分相对阶大于1且存在非线性输入扰动和未建模动态时，可保证系统跟踪误差在预先给定的过渡过程时间内收敛到一个残差集中； 5。

5As for creep of the marine soft soil, the micro-mechanism of one-dimension creep is proposed: Under slight load, the initial bone strength and rank will be destroyed, while, as the time advances, deformation increases, void ratio decreases and inner particles move, bonding among particles become tight and the structure changes, and then the restitute of the old structural damage exceeds the new one. Consequently, creep will trend towards decelerate steady state ultimately.

揭示了软土一维蠕变的微观机理：当土样受荷较小时，尽管土样初始结构要受到影响，某些颗粒连结强度、胶结性、定向排列性遭到破坏，但随着时间的增长，变形增大，孔隙比减小，土体内部颗粒发生位移，使得某些颗粒结构间的联结更紧，胶结因而逐渐恢复，定向排列性亦略有回升，从而使得结构缺陷的愈合超过胶结的破坏和新缺陷的形成，蠕变最后趋于减速稳定状态。

Thanks to this scheme, the phase, root-mean-square value, frequency, and waveform of the output sinewave voltage can be controlled precisely and the system has excellent steady-state performance, fast dynamic response performance, fast and reliable current cut-off protection function.

提出了一种新的适应"模块化"要求的高性能逆变电源控制方案，该方案是一种带有输出电压相位控制及负载电流前馈控制的多环反馈控制方案，能对输出正弦波电压的相位、有效值、频率、波形进行精确控制，使系统具有良好的稳态、动态特性以及快速可靠的截流保护功能。

Coupled equations of motion of wind and snow particles for steady state saltation are presented and solved for a simplified grain surface impact process.

给出了定常充分发展流场中风、雪粒相互耦合的运动方程，并用简化的雪粒床面碰撞过程求解了方程。

Compared with 2005's financial policy of "striving for development in a steady state","guaranteeing satiability and accelerating innovation" will be the primary melody for 2006's financial policy.

我国国民经济呈现出增长较快、效益较好、价格平稳、活力增强的良好态势，经济运行的稳定性有所提高，经济发展的协调性有所改善。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。