电力系统振荡中不对称故障的故障选相新方法--中国电力科技网 关键词： 电力系统振荡，故障选相，高频分量 [gap=2532]Keywords: power swing, fault phase selecting, high frequency exponent
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...是电路分析的基本工具，即使电力系统 根据不同应用对广域保护系统的不同要求以 处于某些非稳定状态， 如功率摇摆（power swing）及各个阶段所掌握的不同技术，其系统结构也有 状态，由于电压和电流值的变化比较缓慢，因此所不同。
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功率波动 power fluctuation; power surge; power swing 频率波动 frequency fluctuation; frequency flutter; frequency jitter ..
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system power swing 系统振荡
power swing phenomenon 指针振摆现象
power swing MAG 高频疲劳试验机
power swing damping 电力动揺抑制
SINCOTEC power swing 高频疲劳试验机
system electrical power swing 系统电功率摆动
low power swing-out condenser 低倍可转出聚光镜
POWER SWING AND OUT-OF-STEP CONSIDERATIONS 电力系统震荡与失步
power swing model 振荡模型
The simulation results show that SMES will not affect the normal action of pilot current differential protection while it is damping generator power swing effectively.
仿真计算结果表明,SMES装置能够很好地抑制发电机机端功率振荡,且对现有的纵联电流差动保护的动作结果不会产生影响。
参考来源 - 超导储能装置对输电线路纵联电流差动保护的影响分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Based on the relative variation of impedance during power swing, a novel phase selector for high voltage transmission lines is proposed.
提出了一种基于阻抗相对变化的高压线路保护选相新原理，用作振荡期间的选相元件。
Measures, such as the floating of threshold, braking by positive sequence current, driving up the threshold during power swing, etc are suggested to prevent th.
采用浮动门槛、正序电流制动和静稳破坏后提高动作门槛值的方法，来防止系统振荡时误启动。
Establish the fuzzy set based on modulus component, three phases and residual current, which can distinguishing unbalance faults from power swing rapidly and reliably.
建立了基于模分量大小和三相及零序电流大小的模糊数学模型，能快速准确的识别振荡中发生的不对称故障。
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