基于同步相量的电力故障录波监测系统  

Power Fault Recording and Monitoring System Based on Synchrophasor

作　　者：鲁文[1] 刘明祥[1] 孙国城[1] 

机构地区：[1]国网电力科学研究院,江苏南京210003

出　　处：《江苏电机工程》2010年第6期61-65,共5页Jiangsu Electrical Engineering

摘　　要：介绍了DPR-2E型电力故障录波监测系统。DPR-2E系统的装置硬件采用Motorola PowerPC和ADI BlackFinDSP组成双CPU系统,软件采用Linux嵌入式实时操作系统,全面提高系统的可靠性和抗干扰能力;该系统基于同步相量测量平台,利用同步时钟信号可为电力系统实时动态监测系统提供大量原始数据;高稳定度的恒温晶振和高精度守时技术全天候保证秒脉冲信号的准确性,为大范围故障分析提供同步保证;改进的prony算法可准确迅速判定电力系统低频振荡;高精度测距技术能够很好地适应线路参数变化带来的测距误差。DPR-2E系统集故障录波、测距、同步相量、实时监测和连续记录为一体,为超长时间、大范围和发展性的事故分析提供了可靠的数据来源。At present, power system interconnection has brought new challenges to the safety and stability of power system operation. In the event that a large-scale and long-duration fault occurs in the interconnected system, the power fault recording and monitoring system （PFRMS） should be able to meet the requirements of fault analysis. The Paper elaborates a power fault recording and monitoring system with the type of DPR-2E. In order to improve system reliability and anti-jamming, the hardware device of DPR-2E adopts a twin CPU system made up of Motorola PowerPC and ADI BlackFin DSP and the software adopts Linux embedded real-time operating system . Based on the platform of synchrophasor measurement and the synchronous clock signal, DPR-2E can supply large- scale original data .Constant-temperature crystal oscillator with good stability and time keeping technique with high precision ensures the veracity of one Pulses Per Second （1PPS） at any time and the synchronous analysis of large-scale fault. The improved prony algorithm identifies the power system low frequency oscillation quickly and exactly. The high accuracy location technology can commendably adapt to the ranging fault due to the variation of line parameters. The system realizes consecutive recording over a long period of time and uniform analysis of the steady, synchrophasor, dynamic and transient data, providing reliable data sources for analysis of the ultra- long, large-scale and developing fault.

关 键 词：同步相量 故障录波监测系统 稳态记录 低频振荡 

分 类 号：TM711[电气工程—电力系统及自动化]