机构地区: 广西大学
出 处: 《现代电力》 2008年第3期8-12,共5页
摘 要: 针对目前对负荷变化与支路潮流变化关系的研究,提出了一个反映由负荷有功功率变化引起支路有功潮流变化量的系数,即负荷转移因子(Load Shift Factor,LSF)。根据功率传输分配的特点,从电流传输分配系数(CTDF)的推导入手,通过直流潮流法,将对电流的研究转化为对功率的研究,并得出了LSF值。为提高计算精度,还提出了一种改进的直流潮流算法,改善了LSF的计算结果。另外,在LSF的拓展应用中,根据叠加原理,实现了对支路有功潮流、支路有功功率损耗以及节点最大负荷量的算法推导,并对以上结果进行了实例应用与分析。 A method for computation of LFS (Load Shift Factor ) is proposed based on the changing of power flow and load. Factors of current and power transfer distribution are analyzed. The LFS is introduced based on these two factors. An improved method based on DC power flow is suggested to obtain higher computation accuracy. Some application examples are demonstrated to prove the validity of this method.
领 域: [电气工程]