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This paper presents the analysis of an AC-AC converter used in partial discharge test. In this paper, the analysis of the frequency converter is separated into two parts. Firstly, the converter models are simulated by a circuit simulation program for comparing noise signals generated by the 2-level SFC and 5-level SFC. The frequency of the converter was set to be 200 Hz. With the help of the simulator,...
This paper presents the usage of multilevel frequency converters for partial discharge tests and an approach for noise reduction. The comparison of the background noise generated by square wave (2-level) and 5-level frequency converters with the frequency of 200 Hz is presented. The testing frequency of 200 Hz is necessary for partial discharge test of transformers because of avoiding saturation effect...
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