基于机电—电磁混合仿真的暂态电能质量分析  

Transient Power Quality Analysis Based on Hybrid Electromechanical-electromagnetic Simulation

作　　者：代双寅[1] 李琼林[1] 杨君超[2] 

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450052 [2]国网郑州供电公司,河南郑州450000

出　　处：《水电能源科学》2015年第5期200-202,210,共4页Water Resources and Power

摘　　要：为提高暂态电能质量仿真精度,提出了基于机电—电磁混合仿真的暂态电能质量分析评估方法。根据电能质量分析的需要把整个电网分割成机电暂态网络和电磁暂态网络,通过数据交换接口进行机电—电磁混合仿真计算,并针对大容量异步电机启动引起的电压暂降进行仿真研究,分析电机容量和接入点短路容量对电压暂降的影响。仿真结果表明,随着接入点短路容量的减小,异步电机起动对系统电压暂降的影响增大,为电压暂降的分析与治理提供了指导和参考。A transient power quality analysis and evaluation method based hybrid electromechanical-electromagnetic simulation is proposed to improve the simulation accuracy. The whole network is divided into the electromagnetic network and electromechanieal network according to the need of power quality analysis. HyBrid simulation is realized through the data exchange interface. Voltage sags caused by inductive machine are simulated and the impacts of inductive machine ca pacity and access point capacity on voltage sags are analyzed. Simulation results show that the impact of inductive ma chine on voltage sags increases with the decreases of access point capacity. This conclusion is available for reference in the voltage sags analysis and management.

关 键 词：电能质量 电压暂降 混合仿真 能量指标 

分 类 号：TM743[电气工程—电力系统及自动化]