A novel single-phase hybrid active power filter applied to electrical railway system is proposed.
提出了一种适用于电气化铁路的新型单相注入式混合有源滤波器。
This paper describes a microcomputer compound control system for single phase resistance-heated furnace based on power and temperature regulations with uniform distribution and zero trigger.
本文介绍一个单相电阻炉均布式零触发调功调温的微机复合控制系统。
The signal injection method is widely used for automatic selecting fault line in indirectly earthed power system, which has great effect in the system of single-phase ground fault.
注入信号法是一种效果较好的选线方法，其原理广泛应用于小电流接地系统单相接地故障的自动选线。
And the single phase grounding fault location for transmission line should be the emphases in power system fault detection.
因此输电线路的单相接地故障点定位应是电力系统故障检测的一个重点。
The single-phase harmonic current components can also be detected by the method effectively through constructing a dummy symmetry three-phase power system.
通过构造一个虚拟的三相对称系统，该检测方法可以推广到单相电力系统的谐波电流检测。
Aim at an-arc suppression reactor earthing power system, we design a suit of microcomputer system for compensating single-phase earthing current and selecting line.
针对中性点经消弧线圈接地的小电流接地系统，设计了一套单相接地补偿及选线的微机保护装置。
Aim at an-arc suppression reactor earthing power system, a suit of microcomputer system for compensating single-phase earthing current and selecting line was designed.
针对中性点经消弧线圈接地的小电流接地系统，设计了一套单相接地补偿及选线的微机保护装置。
Voltage protection for electronic and electrical equipment used in low voltage single phase power supply system.
主要用于低压单相电源系统电子电器设备的过电压保护。
Detecting and locating the single phase grounding fault of power distribution system is difficult, to locate fault in the circuitry is more difficult.
配电线路单相接地故障的检测和定位是一个难题，要在线路上定位故障点更是困难。
This paper introduces a digital control system of series hybrid type active power filter used in single-phase circuit, which employs a DSP processor.
本文介绍串联混合型单相电力有源滤波器的一种基于DSP芯片的数字式控制系统。
In accordance with the feature of three phase unbalanced loads, this article describes the correction principle of reactive power and the control system of single board computer.
本文针对三相不平衡负载特点，介绍了无功功率补偿原理和单板机控制系统。
With the increasement of the harmonic quantity in power system, single phase harmonic power flow calculation can't meet the needs.
随着电力系统中谐波的日益增多，单相谐波潮流计算已不能满足要求。
This paper introduces the system of single phase large power source varied frequency for heating, contains rectifier, filter, inverter and control circuit etc.
介绍了大功率单相变频加热电源的系统组成，包括整流、滤波、逆变和控制电路等部分。
The system consists of the AC input stage, single phase PFC, main inverter, output low-pass filter, auxiliary power supply, and load current sharing circuit, etc.
整个电源由输入电路、功率因数校正器、主逆变器、输出滤波电路、辅助电源、均流电路等部分组成。
A full digital control system of the single phase parallel hybrid active power filter for electrified railways is introduced.
介绍了电气化铁路用单相并联混合型有源滤波器的全数字控制系统。
In power system, the kinds of faults often occur on HV transmission line, and the single-phase-to earth arcing faults are the main forms of the faults.
电力系统中，高压输电线路是最容易发生故障的部分，单相电弧故障是其中最主要的故障形式，并且往往是弧光高阻故障。
Single phase broken line and two-phase broken line are two faults easy too see in power system, which account more in all broken line fault.
单相断线和两相断线是三相电网中最常见的两种故障，占纵向不对称故障的绝大多数。
The suggested system makes use of a single phase HFAC pulse density modulation(PDM) converter as the interface to connect energy storage unit and power source for induction motor drive system.
系统采用间接矢量控制技术，通过高频交流脉冲密度调制接口变换器，对功率进行协调控制。
Hysteretic current controllable voltage source inverter technology and single phase clamping buffer technology used in the system were introduced; the power circuit and control circuit were designed.
系统中采用了滞环电流可控电压型逆变器技术与单相箝压缓冲技术，并对功率主电路与控制电路进行了设计。
As a new filtering device used in single phase circuit, hybrid type series active power filter is a combined system of shunt passive filter and series active filter.
串联混合型单相电力有源滤波器是串联有源滤波器与并联无源滤波器组合而成的单相电路新型滤波装置。
A new harmonic detection way based on the single-three phase method and instantaneous reactive power theory was adopted to detect single-phase power system.
采用了单相-三相构造法和瞬时无功理论的谐波检测方法来检测单相系统。
A faulty feeder selector based on traveling wave theory and IEC61850 standard is developed for the single-phase grounding fault of digital substation in non-solid grounding power system.
基于故障行波理论和IEC61850标准，研制了中性点非有效接地系统数字化变电站中的单相接地故障行波选线装置。
As a high voltage single phase nonlinear load, the electrified railway load has become one of the harmonic sources of power system.
作为高压单相非线性负荷的电气化铁道，是引起电力系统谐波污染的谐波源之一。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型，用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
When single-phase-to-earth fault occurs on a neutral non-direct grounded power system, it is nexessary for improving the reliability of power supplying to select the faulted line quickly.
中性点非有效接地配电网发生单相接地故障时，尽快选出故障线路对提高电网的供电可靠性有重要意义。
When single-phase-to-earth fault occurs on a neutral non-direct grounded power system, it is nexessary for improving the reliability of power supplying to select the faulted line quickly.
中性点非有效接地配电网发生单相接地故障时，尽快选出故障线路对提高电网的供电可靠性有重要意义。
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