with the increasing of wind turbines, the response of wind turbine is more and more important when the grid voltage dips.

随着风电机组数量的增加，电网故障时风机的动态响应越来越重要。

double feed systems work well if the grid voltage and frequency is very stable.

当网格电压和频率很稳定时，双馈系统工作的很好。

the imbalanced three-phase grid voltage will seriously affect the three-level pwm rectifier performance.

电网输入电压三相不平衡会严重影响三电平pwm整流器的性能。

the feed-forward control of utility grid voltage counteracts the influence of utility grid. the system becomes a simple passive tracking system.

电压前馈补偿可以抵消电网作用，使系统近似成为一个简单的无源跟随系统。

the voltage of the common coupling point is equal to grid voltage when grid is connected because of the clamp effect of grid.

并网时，由于大电网的钳制作用，公共耦合点电压等于电网电压；

the paper stresses the importance of grid voltage feed-forward, analyses grid current control strategies and explains the relationship between short through duty cycle and sinusoidal duty cycle.

着重分析了电网电压前馈的作用和电流型并网控制策略，并说明了直通占空比和正弦占空比的制约关系。

grid voltage in accordance with corporate standards and requirements for power factor to determine the motor's voltage rating and type.

根据企业的电网电压标準和对功率因数的要求，确定电动机的电压等级和类型。

by adding damp load at dc-side of the converter, redundant energy at dc-side during grid faults will be consumed, therefore the operating of wind turbine will not be influenced by grid voltage sags.

为增强直驱型变速恒频风电系统的低电压穿越能力，采取了变流器直流侧增加卸荷负载以在故障时消耗掉直流侧多余的能量，使风电机组的正常运行基本不受电压跌落影响的应对措施。

this strategy is robust for the grid voltage fluctuation and easy to realize.

该策略对丁电网电压波动具有较好的鲁棒性。

test results show that the deadbeat svpwm control algorithm can effectively track the grid voltage and reference current.

试验结果表明，无差拍svpwm的控制算法可有效跟蹤电网电压和参考电流。

the new regulations of power grid operation require that wind turbine-generator keep connected with the grids even in the situation of grid voltage drop.

现代风力发电的发展，对风电生产提出了新的需求，即在电网电压跌落处于一定范围内时风力发电机装置必须保持和电网相连。

a pseudo-sliding mode based on power grid voltage compensating algorithm for modularized superconductive magnetic energy storage system is proposed.

提出了一种基于伪滑模控制的模块化超导储能系统电网电压补偿算法。

the influence of the d-statcom under the imbalance power grid voltage is studied in this paper.

本文从原理上分析了电网电压不平衡情况对d-statcom的影响。

the control strategy based on virtual power grid flux without power grid voltage sensors is proposed to improve reliability and reduce cost for the grid-connected inverter.

以提高并网逆变器可靠性和降低成本为目的，采用基于虚拟电网磁链定向的无电网电压传感器的矢量控制策略；

the power margin index for shanghai grid voltage stability is presented, and the time domain simulation checking method for the power margin index is discussed.

阐述建立大受端电网电压稳定研究平台，提出「静态分析」与「中长期时域仿真」相结合的动态电压稳定工程分析新方法。

the results about the research on the characters of ion beam sputtering show that grid voltage and sputtering gas pressure have great influences on ion beam distribution and current.

溅射特性研究结果表明：屏极电压和溅射气压对离子束均匀性和束流密度影响显着；

besides, in order to eliminate the effect of grid voltage distortion or disturbance on output current, decoupling control is employed to further improve the quality of output current.

此外，为了消除电网电压畸变或扰动对逆变器输出电流的影响，系统中引入了电网电压前馈解耦控制，改善了系统输出电流的质量。

feedforward signal includes the information of both grid voltage and dc side load. power balance between the input and output can be maintained by adjusting ac side currents.

前馈信号同时包含了电网电压和负载的信息，通过快速调节交流侧进线电流，使得系统功率平衡得以维持。

temperature drift with different grid voltage is different, too.

不同的栅极电压下的温度漂移也不相同。

high ability in resisting public power grid voltage wave ang power grid compensation, stable welding current.

抗电网电压波动及电网补偿能力强，焊接电流稳定。