Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.
同步电动机不但功率因数高，而且其转速与负载大小无关，只决定于电网频率。
Wind turbine generators have relatively large influence on grid frequency when they start up and are connected to the power grid.
当风力发电机组在额定风速启动并网时，对电网频率的影响较大。
Wind turbine generators have the biggest influence on grid frequency when the generators trip and exit the power grid at rated active output power.
当风力发电机组在额定输出有功功率跳闸退出电网时，对电网频率的影响最大；
This grid of horizontal lines and we will know that if we're going from here to here, it's got to be exactly this frequency or at least this space.
这个水平线组成的网格，让我们知道，如果我们从这里到这里，正好是这样的频率或者至少是这个间隔。
This grid of horizontal lines, and we will know that if we're going from here to here, it's got to be exactly this frequency, or at least this space.
这个水平线组成的网格，让我们知道，从这里到这里，正好是这样的频率，或者至少是这个间隔。
"It will signal a dramatic shift to a cleaner, more sustainable method of providing frequency regulation on the grid," Beacon CEO Bill Capp told the GridWeek conference in Washington last week.
“这是一个巨大的改变，我们可以用更环保、更持续的方法来让电网实现频率的调整。”灯塔公司首席执行官比尔·凯普上周在华盛顿出席电网周（GridWeek）大会时说道。
System frequency of substation is dependant on active load of power grid. when system frequency exceeds allowable limits load shall be regulated immediately for stabilization of system frequency.
变电站的系统频率由电力网的有功负荷来决定，当系统频率超出允许范围时，应及时调整所带负荷以稳定系统频率。
When disconnected with external power grid due to certain fault, it will result in frequency collapse, and even leads to large-scale blackout owing to the active power imbalance.
当故障导致供电系统与外电网断开后，此时供电系统因有功不平衡，将出现频率崩溃现象，导致大面积停电事故。
Automatic generation control (AGC) is one of the important measures to regulate the frequency and active power of power grid and ensure its security and economic operation.
自动发电控制(agc)是调整电网频率与有功功率、保证电网安全、经济运行的重要措施之一。
In parallel basis selection algorithms of sparse signal representation, there will be serious bias in amplitude estimation when frequency is not in grid.
在稀疏信号表示的并行选取字典算法中，当频率不在栅格点上时，对应的幅度估计可能会有很大的偏差。
When exported to other countries and regions, equipment according to the local power grid electricity standards and to make corresponding changes, just a frequency converter device.
当销往其他国家和地区时，设备因应本地电网用电标准而做相应改动，只需设备一台变频器即可。
The authors propose an additional control strategy, which changes the power or current order according to the variation of system frequency, thus the power balance of the grid can be implemented.
提出了一种附加控制策略，该附加控制策略根据系统频率的变化改变直流系统的功率或电流指令，从而实现系统功率的平衡。
The circuit model for IGBT simulation is provided. The relationships between IGBT power loss and the switch frequency and between IGBT power loss and grid resistance are presented.
建立了IGBT电路仿真模型，给出了IGBT功率损耗与开关频率和栅极电阻阻值之间关系的仿真结果。
When demand on the grid begins to exceed supply, the grid drops below its normal operating frequency – 50 Hz in the UK, 60 Hz in the US.
如电网需求开始超过供应负荷，电网将降到正常操作频率以下——英制50赫兹或美制60赫兹。
The cars' batteries can serve as a way to stabilize frequency on the grid and, years from now, feed stored energy back into the grid.
该汽车的电池可以作为一种方法，以稳定的发车频率和年后，饲料储存的能量返回到电网。
The system operating higher frequency is getting worse, because of the smaller space of the grid of radiating element and the difficulty of arrangement cables.
对于工作于较高频率的系统尤其如此，因为其单元栅格的物理空间相对较小，使得电缆布线非常困难。
With the rate of the variable speed wind turbines connected to the grid increasing, it will bring adverse influence on frequency control of the power system.
随着变速风电机组容量在电网中的所占比例的不断提高，其接入电网将给电力系统的频率控制带来不利影响。
Brazing quality and product reliability are both increased as using high frequency pulse microplasma arc heating process for assembly brazing of cathode and photoetching grid of electron tube.
采用高频脉冲微束等离子弧做为电子管阴极和光刻栅极装配钎焊工艺的热源，提高了钎缝质量和产品的可靠性。
The online variable step can also regulate the voltage convergence rate, and the phase-locked control circuit is designed to synchronously trace frequency and phase of power grid automatically.
在线调节步长改变电压收敛速度，设计锁相控制电路，自动同步跟踪电网频率和相位。
A series hybrid active power filter for aeronautical variety-frequency power grid is studied.
研究了一种适用于航空变频电网的串联混合有源电力滤波器。
In this paper, the optimization of primary frequency regulation method in management system and technology criterion for thermal power generating unit of Shandong grid is described.
叙述了山东电网从管理制度和技术规范两方面着手，对火电机组进行优化整改的经过。
Traditional grid-connected inverter employs low frequency output isolation transformer. It increases weight and cost.
传统的并网逆变器输出端采用工频变压器，体积重量大，成本高。
For Shanghai power grid, which has large short circuit capacity and short electrical distance, a method using imported instrument to test power frequency variation distance protection is presented.
结合上海电网具有短路容量大、电气距离短的特点，提出了使用进口仪器测试工频变化量距离保护的具体方法。
DD862 single phase watt-hour meter is an induction meter which is applicable to measure the rated frequency of 50 Hz, and power loss of single-phase intercourse grid.
用途APPLICATIONDD862单相电度表系感应式单相交流有功电度表，用于计量额定频率为50hz，单相交流电网中有功电能的消耗。
This paper presents a double frequency automated grid method, which applies more nodes in the stress concentration field.
本文提出了双频自动网格法，在应变集中区域增加节点。
This paper presents a double frequency automated grid method, which applies more nodes in the stress concentration field.
本文提出了双频自动网格法，在应变集中区域增加节点。
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