电力系统保护与控制2012，Vol.40Issue(14)：16-19,25,5.
一种基于参数辨识的单相瞬时功率理论研究
A single-phase instantaneous power theory based on parameter identification
唐昆明 1王洪亮 1罗建 1刘声惠 2张太勤 3李阎君1
作者信息
- 1. 输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆400044
- 2. 重庆市电力公司市区供电局,重庆400010
- 3. 重庆新世杰电气有限公司,重庆400030
- 折叠
摘要
Abstract
Traditional sinusoidal power theory is not feasible for non-sinusoidal condition. The existing non-sinusoidal instantaneous power theories have no clear physical meanings. To solve this problem, this paper presents a definition of instantaneous active and reactive power based on the parameter identification. The simplified equivalent model in time domain is built. Using the least squares approximation method, the approach of definition and measurement of instantaneous power is given. This definition has a distinct physical meaning. It is feasible for arbitrary non-sinusoidal voltage and current, especially for non-periodical waveforms. The theory is evaluated for linear, varying and non-linear loads in the presence of harmonics, showing the rationality and feasibility.关键词
等值模型/瞬时功率/参数辨识/功率测量/无功功率Key words
equivalent model/ instantaneous power/ parameter identification/ power measurement/ reactive power分类
信息技术与安全科学引用本文复制引用
唐昆明,王洪亮,罗建,刘声惠,张太勤,李阎君..一种基于参数辨识的单相瞬时功率理论研究[J].电力系统保护与控制,2012,40(14):16-19,25,5.
