摘要
通过对1种点乘移相算法来计算无功功率和电能的分析,提出了3种移相算法:瞬时值90°移相算法、瞬时值60°移相算法和瞬时值45°移相算法。并经实例分析得出60°移相算法在无功功率和电能计算精度上具有较好的优势。
A phase-shift algorithm for reactive electric power and energy in power systems is presented in this paper. The proposed algorithm is based on a difference of a quarter of periodic in time and a difference of 90° in phase. According to this principle, three algorithms, such as 90°, 60° and 45° phase shift in instantaneous value, are proposed in this paper. 60° phase shift algorithm is better in performance than other algorithms in reactive electric power and energy computation.
出处
《电力学报》
2007年第4期428-431,共4页
Journal of Electric Power
基金
国家自然科学基金资助项目(50767001)
广西自然科学基金资助项目(桂科自0640028)
广西高校百名中青年学科带头人资助计划项目(RC20060808002)
关键词
电力系统
无功功率
无功电能
移相
power systems
reactive power
reactive energy
phase-shift