four-wire的例句大全

Using high performance DSP processor, the device can calculate and compensate harmonic current rapidly under the condition of three-phase four-wire system.

该装置应用于普遍使用的三相四线制系统，采用新型高速DSP控制芯片，可实时地检测计算负载谐波并加以补偿。

Due to large number of single phase nonlinear loads being put into use, harmonic problem in three-phase four-wire system has become more and more serious.

随着大量单相非线性负载的使用，三相四线制系统谐波问题越来越严重。由于零序分量的存在，三相四线制系统谐波治理不同于三相三线制系统，很多工作尚处于起步阶段。

The open-air wires of three-phase four-wire system are extensively used in supply main of 220V& 380V electric network of China.

在我国380/220伏电力网络中，广泛采用三相四线制架空线作为配电干线。

Due to more and more single phase non-linear loads being put into use, people begin to pay attentions to harmonic problem in three-phase four-wire system.

随着越来越多的非线性负荷投入电网应用，三相四线制配电网系统谐波治理问题开始引起了人们的关注。

A nonlinear dynamic model is set up to study the sustainable development and utility of renewable resources in this paper. In this paper, instantaneous reactive power theory using in three-phase four-wire system was discussed at first.

本文运用非线性理论建立了可再生资源二次非线性收获的动力模式。讨论了在三相四线制系统中瞬时无功功率理论和有源电力滤波器的研究结果。

The detecting method of harmonics and reactive currents in single-phase is applied in three-phase four-wire system, so harmonic current detection and compensation of each phase can be performed separately but without affected by nonbalanced system.

本文将单相谐波检测算法应用于三相四线制系统中，可以各相分别检测谐波电流，从而进行各相单独动态电流注入补偿，不受系统不平衡的影响。

The p-q-r instantaneous power theory is introduced, based on which a direct control strategy of UPQC ( Unified Power Quality Conditioner) is presented and its implementation in non-linear and unbalanced three-phase four-wire system is discussed.

阐述了p-q-r瞬时功率理论的原理，提出了基于该理论的统一电能质量控制器（UPQC）的直接控制策略，探讨了将其用于三相四线非线性及不平衡系统中的实现方法。

This paper is just to discuss distribution circuit of TN-system in the single-phase, including both three-phase four-wire system and three-phase five-wire system. In what situation does dangerous voltage happen with N-wire?

本文讨论TN（接零）系统中，三相四线和三相五线在其末端单相配电系统中，N线在什么条件下会发生危险电压？

A real-time current detection based on FBD ( Fryze-Buchholz-Dpenbrock) method is pre-sented to detect the harmonic, negative-sequent and zero-sequent currents in three-phase four-wire system, and the essential of the method is the projection transformation of reference voltage.

为了快速、有效地检测出三相四线制电力系统中的谐波、负序和零序电流，提出了一种基于FBD法的电流实时检测方法。

Development of 100 kVA enhanced SVG based on three-phase four-wire power system

100kVA三相四线系统用增强型SVG的研制

It is suitable for both three-phase three-wire system and three-phase four-wire system.

该公式既适合于三相三线制系统，也适合于三相四线制系统。

The Y connection and delta connection of transformer in DVR is simulated with Matlab and the three-phase four-wire structure with Y connection is used in the experiment, which can compensate zero voltage component of source voltage by approved SVPWM algorithm.

分别对变压器不同的连接方法进行了Matlab系统仿真，并对变压器星形连接的三相四线结构和改进的SVPWM控制方法作了实验，解决了系统中存在电压零序分量问题。

Breakage of zero line and the fault caused by poor contact in three-phase four-wire power supply system are introduced based on the experiences of the three electric power practices.

通过三例电力现场实践运行经验介绍了三相四线制供配电系统零线断线和接触不良引起的故障现象。

The DCS power grounding should be: when three-phase and four-wire system is adopted, the neutral wire should be grounded;

而采用单相电源时，若DCS与电力设备为公用接地，则DCS电源零线不接地；

For three-phase four-wire active power filters ( APFs), several typical power theories and corresponding current reference generation strategies are induced.

针对三相四线电源系统，归纳出几种典型的功率理论体系及对应的电流基准信号产生方案。

A Research on Neutral-point Potential Balancing Control Strategy for Three-phase Four-wire Tri-level Three-leg APFs

三相四线制三电平三桥臂有源滤波器中点平衡控制策略

The multi-objective control of micro source is studied for three-phase four-wire system.

研究了基于逆变器并网的微电源在三相四线制微电网中的多目标控制问题。

the proposed technique is suitable for a three-phase four-wire service, as well as the multi-phase multi-wire services with neutral wire.

所提出之同相供电技术适用于三相四线式供电系统，亦适用于含有中性线之多相多线式供电系统。

moreover, three-phase four-wire active filters can suppress zero line current, and solve symmetric problem of system effectively.

另外，三相四线制有源电力滤波器能有效地抑制零线电流，并能有效地解决系统的不对称问题。

Three-phase winding, four-wire connection. Ungrounded or grounded can be specified.

三相 绕组, 四线连接. 可指定不接地或接地.