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- Voltage sag and Momentary Outages Protection. 电压降落与瞬间停电的保护
- A momentary voltage dip that lasts for a few seconds or less is classified as a voltage sag. 短时电压跌落持续几秒或更短可归属电压下跌。
- In the end, the distribution network reliabilities considering voltage sags and protective relays or not are compared. 最后比较了计及电压暂降和保护性能前后的配电网可靠性指标变化。
- Voltage sags often cause undervoltage fault in sensitive loads, and interrupt the production process. 对于接地故障造成之电压骤降问题，造成敏感性负载因欠压而导致生产程序中断。
- Dynamic voltage restorer (DVR) is the most effective device for compensating voltage sags. 动态电压恢复器(DVR)是补偿电压凹陷最有效的装置,控制方式是其技术核心。
- In power system, fault location that influences voltage sags is randomly distributed determined by many factors. 实际电力系统中，线路故障点受诸多因素影响，具有随机不确定性。
- Voltage sags have become a major power quality issue encountered by industries in recent years. 近年来电压骤降在工业界已成为非常重要的电力品质议题。
- Voltage sags may be sufficiently severe, especially in the case of faults, to cause sensitive loads (computers, VCRs, clocks, etc.) to reset. 电压下跌可能非常严重,尤其在故障情况下,可引起敏感的负荷(计算机、vcr、电钟等)复归。
- A new topology of dynamic voltage restorer(DVR) is proposed to solve the continuous voltage sags, which can not be realized with the traditional DVR. 针对传统DVR不能补偿持续电压跌落的问题,提出了一种新的动态电压恢复器(DynamicVoltageRe storer简称DVR)结构,采用易于控制的整流电路,将能量从电源提供给DVR,从而实现电压跌落的持续补偿。
- In three model systems of different net structure, characteristic of FCL affecting to voltage sags due to short fault is analyzed by simulation. 对故障限流器在系统发生短路故障瞬间的电压跌落问题进行了分析。
- Dynamic Voltage Restorer (DVR) is considered as the most effective device to compensate the voltage sag. 动态电压恢复器(DVR)是目前补偿电压凹陷最为有效的装置。
- The performance indices relative to the requi-rements of sensitive loads and the quantities of voltage sags are given to assess effect of voltage sags. 基于系统可靠性的分析方法提出电压凹陷影响评估的方式并给出性能指标,考虑了敏感负荷的要求和电压凹陷的量化标准。
- The paper estimates the influence extent of node voltage sags on general equipment sensitivity by process performance index. 提出利用过程性能指数评估节点电压凹陷对一般敏感设备的影响程度。
- The characteristic of voltage sag is affected by the configuration of distribution network. 配电网的网络结构可以影响电压暂降的性能。
- The algorithm of the distribution network reliability calculation considering voltage sags and protective relays is proposed. 提出一种计及电压暂降和保护性能的配电网可靠性算法。
- The development of electric power market enforced the restriction to voltage sag. 电力市场的发展对电压暂降提出了更加严格的限制。
- As a result, voltage sag compensator will suffer from the significant the inrush current. 瞬间的涌浪电流对于电压骤降补偿器造成很大的负担。
- In transient state, voltage sag in the load bus can be improved in a very short period by the proposed DVR. 在暂态方面，使用感应马达为负载来验证动态电压调整器的补偿能力及速度，确保在短时间内补偿暂态压降。
- Voltage drops under steady state, dynamic voltage sags, three-phase imbalance andother power quality problems were compensated in experiment. 论文利用研制的样机进行了静态电压低下、动态电压暂降、系统三相不平衡等常见电能质量问题的补偿实验。
- Abstract: A new sensitivity evaluation method for sensitive equipment based on fuzzy theory due to voltage sags is proposed in this paper. 中文摘要: 提出了基于模糊理论的敏感设备电压暂降敏感度评估方法。
