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POLYNOMIAL CURVE FITTING INDICES FOR DYNAMIC EVENT DETECTION IN WIDE-AREA MEASUREMENT SYSTEMS
Power system measurements Power system monitoring Fault detection Response-based control Decision trees
2015/1/20
In a wide-area power system, detecting dynamic events is critical to maintaining system stability. Large events, such as the loss of a generator or fault on a transmission line, can compromise the sta...
2009年广东电网动态稳定问题分析研究（Study of Dynamic Stability Problem in Guangdong Power Grid in 2009）
动态稳定 PSS 增益 励磁系统 负荷模型
2010/8/17
以2009年广东电网夏季大方式及小方式数据为基础，研究了广东电网内的弱阻尼振荡模式，对重要地区机组的PSS投、退进行了灵敏度分析，揭示了广东电网内动态稳定性薄弱的地区，优化了广蓄B厂机组PSS增益定值，另外，采用综合负荷模型，对广东电网内振荡模式及广东电网与外网区域振荡模式进行了研究，并同静态负荷模型结果进行了对比，给广东电网PSS现场试验、运行及励磁参数实测工作提供了依据。
IEC 61850数字化保护动模测试系统设计与实现（Design and Implementation of Dynamic Simulation Testing System for Digital Protection Based on IEC 61850 ）
IEC 61850 数字化保护 保护测试 物理模型 动态模拟
2010/8/17
IEC 61850标准的应用给变电站自动化系统带来了重大变革。在此类变电站中，保护装置可以直接从电子式互感器处获取所需的电流、电压数字量信息，并向智能开关控制器发送数字化跳闸命令。这种数字化保护与传统的微机型保护在硬件结构和信号处理方面都存在差异，传统的保护测试方法将不再适用。文章分析了基于IEC 61850的数字化保护装置的测试要求，提出通过对传统的物理模拟系统进行升级改造，建立符合要求的测试系...
GEOMETRIC OPTIMIZATION OF CROSS-FLOW HEAT EXCHANGER BASED ON DYNAMIC CONTROLLABILITY
geometric optimization controllability cross-flow heat exchanger
2009/10/14
The operation of heat exchangers and other thermal equipments in the face of variable loads is usually controlled by manipulating inlet fluid temperatures or mass flow rates, where the controlled vari...
DYNAMIC ANALYSIS OF TEMPERATURE AND HEAT GAINS IN CLASSROOMS WITH DIFFERENT TYPE OF WINDOWS
school building temperature measurement microcontroller
2009/10/13
Energy consumption in buildings, in schools as well, in Serbia and Montenegro is significantly higher than is defined in world's energy standards. Heating energy is the biggest part of total energy co...
An Internal Friction Study of a Vanadium Microalloyed Steel by a Dynamic Mechanical Thermal Analyser
Interstitial atomsp Internal friction measurement
2009/10/12
The internal friction of a C-Mn-Al-V-N steel was investigated using a dynamic mechanical thermal analyser (DMTA) under di erent austenitisation time, cooling and tempering conditions. Internal frictio...
两级先导式电磁阀主阀芯动力学分析（Dynamic Analysis of a Spindle of Pilot-operated Solenoid Valve）
动力系统 电磁阀 动力学模型
2009/5/22
对动力系统用两级先导式电磁阀进行了动力学分析。建立了基于电磁阀阀芯振动与流体流动相耦合的系统动力学模型。模型充分考虑了阀芯自激振动，阀内各腔以及阀前后管路内压力变化。分析了不同工作条件下阀芯的稳定性，研究了工作压力、工作流量对电磁阀动力学特性的影响。
期刊信息
篇名
A Novel Approach for Determining the Hopf Bifurcation Point of Dynamic Voltage Stability in Power System
语种
英文
撰写或编译
撰写
作者
Li Hongzhong,Cheng Haozhong
第一作者单位
刊物名称
WSEAS Transaction On Circuit ...