voltage quality

the-line device for monitoring voltage quality is a computerized digital recorder voltage transducer of distribution system.

本系统的 在线 监测部分能自动检测配电网中产生的各种随机过电压并记录其波形等数据.

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Multi-objective Control Strategy of Cascaded Multilevel Voltage Quality Conditioner

级联多电平电压质量调节装置的多目标控制

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Current voltage quality standard is drafted according to single voltage quality problem.

目前的电压质量标准是针对单个电压质量问题建立的.

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research on probability and statistics analysis application of power network voltage quality

电网电压质量评估的概率统计分析方法应用研究

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Factors influencing power quality vary from the electric pulse in millisecond to long term voltage fluctuation.

电能质量干扰的变化范围很广,从毫秒级的冲击干扰到长期的电压幅值波动.

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Voltage fluctuation may influence the voltage quality and the life of the electric installation, what is worse, the voltage fluctuation will likely result system fault and large area power failure.

电压波动轻则影响电压质量及电气设备寿命，重则导致系统事故、甚至引起大面积停电。

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The simulation results of distortion voltage with harmonies illustrate the validity of the power quality analyzer.

对含有谐波的畸变电压波形的实验结果说明了这种电能质量分析仪的有效性.

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Analysis of test example indicates EPT in place of traditional OLTC in the distribution networks can lower power loss effectively, improve voltage quality of distribution networks and reduce the expense of the reactive-load compensation equipment to better satisfy the need of the electric customer to power quality.

算例分析表明，EPT取代配电网中常规的OLTC可有效降低网损，改善副方电压质量，大大减少无功补偿设备的投资费用，从而更好地满足用户对电能质量的要求。

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In them, Dynamic Voltage Restorer ( DVR ) is a better device which can compensate voltage quality problems.

动态电压恢复器 ( DynamicVoltageRestorer,简写为DVR ) 是其中一种能够解决电压质量问题的装置.

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The detection and location of the start point and end point of the voltage sag and swell is a key problem for the power quality monitoring.

对于短时低电压扰动发生、恢复时刻的检测与定位则是电能质量监测和统计中获取相关指标首先要解决的问题。

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In the course of designing buried power circuit, the main project is the wire section selection Providing that the voltage quality is guaranteed, permitted flow can be checked.

地埋电力线路设计中，主要项目是导线截面的选择，在保证电压质量前提下，再按允许流量校验。

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reactive power optimization ( rpo) of power system can effectively reduce the energy losses caused by power transmission and distribution, which can not only improve voltage quality and power system stability obviously, but also economize energy.

电网无功优化可以有效地降低电能在电网中传输和分配过程中能量损耗，明显改善电压质量，提高系统稳定性，节约能源。

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The quality of voltage has great influence on the stability of power network and the safe operation of electric equipments, and reactive power load flow is an important factor influencing voltage quality.

电压质量对电网稳定及电力设备安全运行具有重大影响，而无功潮流又是影响电压质量的一个重要因素。

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The test demonstrates that the proposed method can effectively balance the pressure from optimal target function and constraints of the variables and improve the voltage quality.

计算结果表明，该算法较好地平衡来自目标函数最优化和约束条件限制的压力，有效地改善电压质量。

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Nearly 90 % of all power quality problems are voltage sags and momentary outages.

在所有的电力质量问题中,几乎90%为电压降落与瞬间停电.

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Voltage is one of the most important target aims of power quality in power system. Reactive power balance in power system is important condition to ensure the voltage quality.

电压是电力系统电能质量的重要指标之一，而系统的无功平衡是保证电压质最的重要条件。

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Automatic voltage control ( AVC) system is important for power system running in the status of security, high quality and economy.

自动电压控制（AVC）系统是电网安全、优质和经济运行的重要手段。

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Voltage and reactive power ( volt/ var) control is an important issue related to voltage stability, voltage quality and economical operation of power systems.

地区电网电压无功控制问题是一个关系到系统电压稳定、保证电压质量、提高电网运行经济性的重大课题，因此一直受到电力系统运行人员和研究人员的关注。

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The four typical power quality disturbances of voltage sag, swell, interruption and transient impulse are used to test the proposed method, the effectiveness of which is verified by the simulation results.

对包括电压凹陷、电压上升、瞬时断电和暂态脉冲在内的4种典型电能质量扰动进行了测试，仿真结果表明了该方法的有效性。

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DVR is one of the hottest topic in this field, because it could compensate both steady state and dynamic voltage quality problems, such as voltage sag, voltage swell, the imbalance of three-phase voltage and harmonic.

它不仅可以解决电压跌落、凸起的动态电压质量问题，也可以补偿三相不平衡、电压谐波等稳态电压质量问题，是目前国内外的研究热点之一。

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The series capacitor compensation technique also can improve the system transient stability and voltage quality.

同时,串联电容补偿技术对于提高电力系统暂态稳定性、改善电压质量也是很有效果.

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In order to assure equipment safety and economy of its performance, the national standard GB/ T 14549-93 "Electric Energy Quality Communal Electric Fence Harmonic" specifies the limited value for harmonic voltage and galvanism.

为了保证电网和电力设备的安全和经济运行，GB/T14549-93电能质量公用电网谐波，规定了谐波电压和电流的限值。

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engineers monitor the voltage quality in electrical power systems.

工程师们监测电力系统中的电压质量。

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For complex characters of rural area, we should promote small-capacity, dense point of the power mode to ensure that villagers end of the voltage quality.

在低压降损方面，首先应制定三年改造规划和合理的农网改造方案，针对农村地型复杂、居民分散的特点，推广小容量、密布点的供电模式以保证村民末端电压质量。

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Discussion on the Way to Improve the Voltage Quality for Rural Low Voltage Network

浅谈提高农村低压电网电压质量的方法

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Through power flow calculation of tie lines, the effects of the changes in generation, load and network structure on the voltage quality and safe and economic operation of the system can be analyzed.

通过联络线的潮流计算，可以分析发电出力和负荷以及网络结构的改变对系统电压质量和安全经济运行的影响。

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this paper also makes comparison between wind/ pv hybrid system and single wes and concludes that the former system can get better system voltage quality.

本文还分别对风力-太阳能混合发电系统和单独的风力发电系统用此方法进行计算，比较结果后得出了前者更有利于提高系统电压质量的结论。

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Reactive power compensation and balance is a key factor to satisfying the voltage quality.

电力系统的无功补偿与无功平衡是保证电压质量的基本条件.

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Voltage Quality of Central China Power System And its Management in Reactive Power and Voltage

简论华中电网电压质量及无功电压管理工作

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