THE NEW METHOD OF INTERFERENCE ASSESMENT IN LOW-VOLTAGE POWER SUPPLY LINES
Abstract
The paper presents the interference model appearing in the low voltage supply in the form of series connection of equivalent sources: periodic and random. It gives the method to measure interference within low frequencies as well as high frequencies with the use of a typical measuring receiver with frequency change. The application of the measuring receiver makes it possible to limit the band of the analysed high frequency signal to the band equal to the width of intermediate frequency band of the measuring receiver. The receiver, in turn, enables further analogue-digital processing of the signal with an a/c converter of relatively low sampling frequency (of tens of kHz). The proposed method of interference measurement enables a deep analysis of the examined waveforms, especially the distinction of random and periodic components of interference. The paper presents the realisation of the interference measuring system and the exemplary results of the measurements carried out with the system.
Event details
- Event
- TC4 Symposium 2001
- Technical Committee
- TC4
- Place
- Lisbon, PORTUGAL
- Time
- 13 September 2001 - 14 September 2001