摘要
基于GPS技术的相量测量技术已广泛应用于电力系统的事件记录和分析，文中分析了在黑龙江省东部电网区域稳定控制系统中装设的相量测量装置在一次系统事故下记录的3个不同地点的动态数据，包括不同地点之间的相位差变化过程和频率动态过程，并讨论了相位测量的精度。结论是所测相住的最大误差与信号频率有关，频率越接近其额定值，最大误差就越小。
GPS based phasor measurement technique has been applied to power system event recording and dynamic analysiswidely. In this paper. dynamic data of a single-phase-to-ground fault recorded by 3 PMUs installed in the regional stabilitycontrol system of Heilongjiang eastern power system is introduced and analyzed. The data include the recorded dynamics ofrelative angles and relative frequencies of 3 different substations. The precision of the phasor measurement approach is alsodlscussed. The conclusion is drawn that the maximum error of measured phase angles caused by the approach depends on thesignal's frequency and is small enough for dynamic monitoring when system's frequency nears its rating.
出处
《电力系统自动化》
EI
CSCD
北大核心
1998年第7期10-13,共4页
Automation of Electric Power Systems
基金
国家自然科学基金!59477011
