直流输电系统接地极电流对交流电网的影响分析。
Analysis on influence of ground electrode current in HVDC on AC power network.
本文介绍了工作于交流电网中线性负载有效值电压线性控制器的设计。
This paper discusses the design method of an effective voltage linearity controller of linear load working in AC power networks.
为了传输太阳能发电站的能量，我们将需要建造新的高伏特直流传输器来取代我们的交流电网。
To transmit the power for the solar farm we would need to build new high-voltage direct current transmission to replace our ac current grid.
其基本原理是将交流电机的滑环输出功率通过整流电桥和有源逆变器送回交流电网。
The basic principle of the system lies in feeding back the output power at the motor slip rings of an AC motor into the mains through a bridge rectifier and an inverter.
在交流电网中，常常采用移相电容器补偿无功功率损耗的方法来提高网络的功率因数。
In ac power network, the way of phase-shifting capacitors to compensate reactive power loss is always adopted to raise network power factor.
变频电源的主要功用是将现有交流电网电源变换成所需频率的稳定的纯净的正选拨电源。
The main function of variable frequency power source is to change the current AC power to the needed stable pure power.
当然，如果你的车库自动地配备了最新型的无线电池充电汽车以及交流电网，最后一个步骤可以省去。
Of course, this last step could be optional if your garage is equipped with the latest wireless battery charger connecting car and A. C. power grid automatically.
当然，如果你的车库自动地配备了最新型的无线电池充电汽车以及交流电网，最后一个步骤可以省去。
Of course, this last step could be optional if your garage is equipped with the latest wireless battery charger connecting car and A.C. power grid automatically.
交流电网侧通过双闭环控制，实现有功功率和无功功率的解耦控制，同时具有稳定直流母线电压的能力。
The alternate current line side realizes the decoupling control of active power and reactive power through double closed loop and the stability of direct current voltages at the same time.
比起交流输电和本地发电，轻型高压直流输电系统不仅具有成本优势，它也对提高交流电网电能质量提供了新的途径。
Compared to the ac Transmission and local power generation, HVDC light system is not only cost advantages, it also exchanges to enhance ac power quality for a new approach.
最后，通过平稳过渡，他想看到交流电网通过这种更自然的形式所取代能源与生活和谐，而不是对立的是，作为空调能源是。
Eventually, through a smooth transition, he would like to see the ac power grid replaced by this more natural form of energy that is in harmony with life, not antithetical to it, as ac energy is.
从本质上来讲，功率因数校正的目的是使用电设备的输入端口对交流电网呈“纯阻性”，保证输入电流和电网电压随时成正比。
In essence, the aim of PFC is to make the input terminal of electrical equipment appear resistive to the AC line, and insure that the input current be proportional to the instantaneous line voltage.
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。
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.
该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
选择交流电作为工业标准的原因很简单，在早期供电距离很短的电网里，交流电的损耗比直流电小。
The reason was that over the short distances spanned by early power grids, AC transmission suffers lower losses than DC. It thus became the industry standard.
在铁道电气化牵引区段，牵引供电网采用单相工频交流电供电方式。
On the railway of electrization, power supply mode is requested to be the single-phase alternating current.
有源逆变器可以将直流电能转变为交流电能反馈给电网，从而实现电能的回收再利用。
Active inverter can convent DC into ac and send it back to the power network, so that reclaim the electricity energy.
传统网络设备的供电都需要本地交流电源来提供电能，不但增加了网络基础建设的成本，而且网络设备还可能受到电网掉电的影响。
The power supply for traditional network equipment all need local AC power source, which increases the cost of network base construction and may affect the network equipment once the power is cut off.
复合材料交流电性能参数随频率的变化规律表明活化炭黑在聚丙烯基体中已形成导电网络。
The variation of ac electrical properties as a function of frequency shows that the conduction network of carbon black has been formed in the composites.
大西洋风能网传输的是直流电而非陆地电网使用的交流电。
The AWC will carry direct current rather than alternating current like the onshore grid.
在分析交流电机工作特性的基础上，阐述了电网谐波对电机的危害。
On the basis of analysis of operation performance of AC motor, the harm of harmonic wave of electric net work to electric motor is summarized in the paper.
光伏并网逆变器是将太阳能电池所输出的直流电转换成符合公共电网要求的交流电并送入电网的设备。
PV grid-connected inverter solar cell output DC into AC meet the requirements of the public grid and into the power grid equipment.
监狱看守所周界防护传统的做法是用铁刺栅栏或很粗的铜线为周界前端与升高电压的交流电直接连接形成高压电网。
The traditional approach is to use iron thorn fencing or very rough week for the copper sector of the front-end and high-voltage ac directly connecting a high-pressure power grids.
通过DSP作为控制器，利用补偿变压器输出可以正负补偿的电压与电网串联，从而实现输出稳定的交流电压。
In this regulator system, a DSP controls bi-directional IGBT triggered and turn-off at zero-crossing to control different combination of secondary coil and realize AC voltage stabilization.
采用类似于交流电机磁链观测的方法来构造一个虚拟电网磁链，可以代替电网电压作为PWM整流器矢量控制中的定向矢量，达到省去交流侧电网电压传感器，降低PWM整流器成本的目的。
So a virtual line flux has been constructed to serve as the oriented vector instead of the line voltage vector to remove the AC voltage sensors and reduce the cost of PWM rectifiers.
直流光伏系统所产生的电能也可转换为交流电连接到电网系统。
The DC electrical energy generated by photovoltaic systems may also be converted to AC and connected to a utility grid system.
直流光伏系统所产生的电能也可转换为交流电连接到电网系统。
The DC electrical energy generated by photovoltaic systems may also be converted to AC and connected to a utility grid system.
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