Probability analysis of harmonic currents produced by AC-to-DC converters with various firing angles

Kuo Hua Liu, Li Wang

研究成果: Conference article同行評審

摘要

An efficient approach to evaluate the injected harmonic currents flowing into a power system due to the summation of randomly varying harmonic currents produced by AC-to-DC power converters is presented in this paper. A probabilistic model is established to derive the magnitude of the injected harmonic currents using the expected value and variance of the harmonic current sources. The simulated results using Monte Carlo simulation are compared with the ones of the proposed approach to validate the proposed scheme. In this paper, 10 AC-to-DC power converters with 4 different ranges of firing angle are examined and compared to clearly demonstrate the variations of the expected value, the standard deviation, and the covariance when the converter number is increased from one to ten. It can be concluded from the simulated results that the proposed scheme can be practically applied to evaluate the injected harmonic currents due to randomly varying harmonic currents generated by various nonlinear loads.

原文English
文章編號492-059
頁(從 - 到)43-48
頁數6
期刊Series on Energy and Power Systems
出版狀態Published - 2005 12月 1
事件5th IASTED International Conference on Power and Energy Systems, PES 2005 - Marina del Rey, CA, United States
持續時間: 2005 10月 242005 10月 26

All Science Journal Classification (ASJC) codes

  • 一般工程

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