谐波情况下无功功率定义的分析与思考  

Analysis and Discussion on the Definition of Reactive Power in Nonsinusoidal Situations

作　　者：李春燕[1] 付志红[1] 张谦[1] 

机构地区：[1]重庆大学电气工程学院,重庆400044

出　　处：《电气电子教学学报》2010年第S2期27-29,49,共4页Journal of Electrical and Electronic Education

摘　　要：正弦电流电路已有完备的功率体系,但非正弦电流电路的无功功率定义还存在很多争议和分歧。论文分析了传统无功功率的局限性,分别从频域和时域等角度分析了目前典型的无功功率定义及其优缺点,并给出非正弦条件下无功功率理论应具备的特点。The definitions of active and reactive power are mature in sinusoidal situations,But different ideas already existed on the definitions of reactive power in nonsinusoidal circuit.In this paper,the limitation of traditional reactive power is analyzed,the advantages and disadvantages of several typical definitions of reactive power are discussed from frequency-domain to time-domain separately.Finally,the characteristics that the reactive power in nonsinusoidal situation must be held are also put forward in this paper.

关 键 词：频域无功功率 时域无功功率 瞬时无功功率 

分 类 号：TM714.3[电气工程—电力系统及自动化]