Accurate Calculation of Harmonics/Inter-Harmonics of Time Varying Load
نویسندگان
چکیده
منابع مشابه
Parameters Estimation of Time-Varying Harmonics
The increasing use of power electronic devices in power systems has been producing significant harmonic distortions, what can cause problems to computers and microproces‐ sor based devices, thermal stresses to electric equipments, harmonic resonances, as well as aging and derating to electrical machines and power transformers [1–3]. The most impor‐ tant problems that have been reported in the l...
متن کاملDesign and Implementation of a Kalman Filter-Based Time-Varying Harmonics Analyzer
Nowadays with increasing use of numerous nonlinear loads, voltage and current harmonics in power systems are one of the most important problems power engineers encounter. Many of these nonlinear loads, because of their dynamic natures, inject time-varying harmonics into power system. Common techniques applied for harmonics measurement and assessment such as FFT have significant errors in presen...
متن کاملdesign and implementation of a kalman filter-based time-varying harmonics analyzer
nowadays with increasing use of numerous nonlinear loads, voltage and current harmonics in power systems are one of the most important problems power engineers encounter. many of these nonlinear loads, because of their dynamic natures, inject time-varying harmonics into power system. common techniques applied for harmonics measurement and assessment such as fft have significant errors in presen...
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The progressive application of non-linear loads in distribution systems (DS) increases current harmonics flow in DS's apparatuses, especially distribution transformers (DTs). Since DTs' operating temperature rises due to the harmonics flow, their loading should be reduced such that the hot spot temperature (HST) is preserved under its permissible value. This means that DTs' available capacity i...
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The problem of calculating the maximal Lyapunov exponent (generalized spectral radius) of a discrete inclusion is formulated as an average yield optimal control problem. It is shown that the maximal value of this problem can be approximated by the maximal value of discounted optimal control problems, where for irreducible inclusions the convergence is linear in the discount rate. This result is...
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ژورنال
عنوان ژورنال: IOSR Journal of Engineering
سال: 2014
ISSN: 2278-8719,2250-3021
DOI: 10.9790/3021-04165659