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APPLICATION OF STOCHASTIC ANALYSES TO EMC PROBLEMS
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| Author(s) |
Yu. M. Bykov; V. Vasilenko |
| Abstract |
The paper presents stochastic methods as applied to power electronic systems when deterministic approach brings about particular or inconvenient for use results. Such a problem is an electromagnetic compatability (EMC) of convertible power source and converted power consumer with cycloconverter. Two cycloconverter systems (Variable Speed - Constant Frequency VSCF and Constant Speed - Variable Frequency CSVF) are considered onder power source and commutator control signal voltage and frequency disturbances. Essentially, disturbances may be separated to: (a) "weak" and fast stochastic and (b) "strong" and slow deterministic. That allows to introduce an "instant" power spectrum of the process defined by fluctuations at each value of the "strong" disturbance. The paper deals with a power spectrum analysis method based solely on "strong" random after-effects of fluctuations. Then the process may be related to the category of pulse random processes with constant period. Common method is applied for analitic definition or cycloconverter output spectrum. Obtained are simple formulae which have been used for calculation of output voltage/current power spectra onder fluctuations and strong disturbances In the VSCF and CSVF systems. |
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| Filename: | Unnamed file |
| Filesize: | 1.801 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-05-23 by System |
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