CAJ | 학술논문

分析了在广泛应用相量测量单元( phasor measurement unit, PMU)和广域测量系统( wide area measurement sys-tem, WAMS)的情况下,电力系统的受扰轨迹规律,研究了基于WAMS的暂态稳定判别技术,分析了状态量门槛值判别方法、基于相平面轨迹凹凸性判别方法、基于单机能量函数判别方法及基于实测轨迹的扩展等面积准则( extended equal area criteria, EEAC)判别方法等的原理及特点。以2012年南方电网丰大计算数据为基础,以实际系统为研究平台,通过仿真分析验证,从准确性、快速性及对测量的要求等方面,对比分析了暂态失稳判据的优缺点及适用性,为工程化应用提供了重要参考。
분석료재엄범응용상량측량단원( phasor measurement unit, PMU)화엄역측량계통( wide area measurement sys-tem, WAMS)적정황하,전력계통적수우궤적규률,연구료기우WAMS적잠태은정판별기술,분석료상태량문함치판별방법、기우상평면궤적요철성판별방법、기우단궤능량함수판별방법급기우실측궤적적확전등면적준칙( extended equal area criteria, EEAC)판별방법등적원리급특점。이2012년남방전망봉대계산수거위기출,이실제계통위연구평태,통과방진분석험증,종준학성、쾌속성급대측량적요구등방면,대비분석료잠태실은판거적우결점급괄용성,위공정화응용제공료중요삼고。
With consideration of the wide application of phasor measurement unit ( PMU ) and wide area measurement system ( WAMS) in power system, the disturbed track pattern of the power system is analyzed. By studying the WAMS based transient stabil-ity detection technology, the principles and characteristics of several detection methods are studied including status threshold value de-tection, concave and convex trajectory of phase detection, generator energy function detection, and measured trajectory based extended equal area criteria ( EEAC) detection. Based on a practical system with actual 2012 CSG heavy load mode data, simulation analysis is carried out on accuracy, speediness and measurement requirements of these detection methods, the merits and faults and applicability of these detection methods are compared to provide reference for engineering application.