Title :
Assessing the viability of using a discrete Fourier transform to determine the displacement power factor
Author :
Haarhoff, G. ; Hofsajer, I. ; van Wyk, J.D.
Author_Institution :
Energy Lab., Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
In the control of a static VAr compensator, it is necessary to know the displacement power factor in order to compensate for the reactive power of the load. If the current waveform is distorted, this becomes difficult and filtering techniques are required. In this paper, the displacement power factor is found by means of a discrete Fourier transform on a cycle by cycle basis. The algorithm of the transform is optimized for this application. It is then implemented in a 21 kVAr SVC
Keywords :
compensation; discrete Fourier transforms; filtering theory; power factor; reactive power; static VAr compensators; 21 kVAr; algorithm optimisation; discrete Fourier transform; displacement power factor; filtering techniques; load reactive power compensation; static VAr compensator; Capacitors; Discrete Fourier transforms; Displacement control; Frequency; Inductors; Power harmonic filters; Reactive power; Static VAr compensators; Thyristors; Voltage;
Conference_Titel :
Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5589-X
DOI :
10.1109/IAS.1999.805972
