Title :
The definition of power factor in single phase system with arbitrary waveform according to similarity
Author :
Ling, Zhibin ; Deng, Chaopin ; Ye, Pengsheng
Author_Institution :
Electr. Eng. Dept., Shanghai Jiao Tong Univ., China
Abstract :
In this paper, the description of similarity in frequency domain between voltage waveform and current waveform is achieved in infinite dimensions real vector space. A new kind of definition formula of power factor, which is suitable under arbitrary waveform voltage and current in single-phase system, is proposed. In this definition, power factor is defined as the product of virtual value similarity factor and phase similarity factor. Conventional power factor definition is only a special case of new definition. This definition suits not only steady state but also transient state.
Keywords :
frequency-domain analysis; power factor; transients; waveform analysis; arbitrary waveform; current waveform; frequency domain; phase similarity factor; power factor definition; real vector space; single phase system; steady state; transient state; virtual value similarity factor; voltage waveform; Chaos; Frequency domain analysis; Harmonic distortion; Phase distortion; Power engineering and energy; Power system harmonics; Reactive power; Resistors; Steady-state; Voltage;
Conference_Titel :
Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on
Print_ISBN :
0-7803-7885-7
DOI :
10.1109/PEDS.2003.1283172
