1) under-voltage load Shedding
低压减载
1.
The performance of the out-of-step system and the stability of the electrical isolated islands after separation are analyzed,especially considering the impact of under-voltage load shedding and different separation location.
用BPA(Bonneville Power Administration)程序对南方电网目前配置的失步解列系统的定值设置及协调配合进行研究,特别是研究了低压减载的影响以及判出失步后解列不同断面的效果。
2.
The paper analyzed two under-voltage load shedding schemes in Tokyo Electric Power Company and Hydro Quebec, Canada, and studied the principle and actual working condition of two typical distributed and concentrated under-voltage load shedding installations in the world.
文章对东京电力公司和加拿大魁北克水电系统两种低压减载方案进行了分析,研究了在国际上两种比较典型的分布式和集中式低压减载装置的原理和实际工作情况。
3.
The uniform criterion,principle and methods of configuration for under-voltage load shedding in domestic power grids is lacking until now.
对于低压减载配置,国内至今还没有一个统一的标准、配置原则和配置方法。
2) undervoltage load shedding
低压减载
1.
The influence of different parameters in undervoltage load shedding on rotor angle and voltage stability was compared.
介绍了PSASP仿真软件中感应电动机的三阶模型,并用其暂态稳定计算模块,从时域仿真的角度分析了感应电动机比例和低压减载对电力系统动态稳定性的影响,比较了不同参数下低压减载对功角稳定和电压稳定的影响。
2.
At present the trial-and-error method is usually used in the engineering practice to design the undervoltage load shedding scheme, however, such a design way lacks of systemization and its workload is heavy.
低压减载是解决电力系统电压失稳的重要手段之一。
3.
The mechanism of undervoltage load shedding for preventing voltage collapse is analyzed.
文章分析了低压减载防止电力系统电压崩溃的机理,比较了分散型和集中型低压切负荷方案的优缺点,并介绍了国内外使用低压减载的情况,指出如何合理地制定低压减载策略以有效地阻止电压崩溃的发生,选择低压减载的时间、地点和减载量方面应视各系统各地区的情况因地制宜。
3) under voltage load shedding
低压减载
1.
Based on the under voltage load shedding schemes in other provincial power grids across the country,the under voltage load shedding scheme for Tianjin Power Grid is formulated.
通过对天津电网进行故障扫描分析,找出系统中的薄弱点,并在综合全国其它省网低压减载方案的基础上,提出天津电网低压减载方案。
2.
Parameter setting for under frequency load shedding (UFLS) and under voltage load shedding (UVLS) should not only ensure static security of frequency and voltage, but also suffice their transient security.
指出了低频和低压减载装置的整定不仅要满足静态和中长期动态对频率和电压的安全性要求 ,而且要满足暂态过程中的频率和电压安全约束。
3.
In order to determine the amount of under voltage load shedding(UVLS),Markov method is used to calculate the probabilities of various operations of UVLS schemes.
针对低压减载方案中切负荷量的问题,利用马尔可夫方法,计算出低压减载方案各种动作情况的概率。
4) UVLS
低电压减载
1.
In these situation, voltage & frequency control devices,which also named UVLS & UFLS devices,are used to maintain the stable and secure operation of power system.
传统的低频低电压减载装置都是基于单机系统,如8位或16位单片机进行设计,精度低,人机界面不直观,软件方面闭锁条件不尽完善,尚不能完全满足变电站综合自动化建设的需要。
5) frequency and low voltage load shedding
低频低压减载
1.
Low frequency and low voltage load shedding schemes for East China Power Grid
华东电网低频低压减载方案研究
补充资料：自动低压减负荷
自动低压减负荷
automatic under volt-age load shedding
z一dong dlyaJ旧nfuhe自动低压减负荷(automatic under volta罗load shedding)为防止电力系统发生事故后引发电压崩演(见电力系统电压崩清)导致大面积停电而采用的技术措施。它的功能是，当电网运行电压低到一定值时自动切除一部分用电负荷，使电网运行电压恢复到正常水平。实现这种功能是依靠核心部件为低电压继电器的自动装t。自动装t的低电压起动值是经过分析计算而整定的，可以分级、分批切除用电负荷。 自动低压减负荷装工一般安装在负荷集中且无功电源不足的地区，同自动低颇减负荷装t(见自动低级减负待)配合使用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条