Statistical Characterization of Supraharmonics in Low-Voltage Distribution Networks
نویسندگان
چکیده
Modern power systems are subject to waveform distortions that include spectral components (supraharmonics) in the range of 2–150 kHz. Due lack regulation this and since supraharmonics may follow time-varying patterns, operators can take advantage statistical characterization supraharmonics, e.g., for determining convenient quality limits or analyze residual capacity networks toward further installations electronic converters. This paper studies low-voltage distribution networks, considering both overall supraharmonic distortion (through total index) individual components. Several probability distributions proposed compared, also multimodal fit more general scenarios which emissions regime patterns. The outcome numerical experiments based on publicly available data collected at actual suggests useful characterizing most cases, with acceptable goodness fitting even presence stair-shaped empirical distributions. serve as a starting point development probabilistic system analysis tools accounting convergence standardization kHz range.
منابع مشابه
fault location in power distribution networks using matching algorithm
چکیده رساله/پایان نامه : تاکنون روشهای متعددی در ارتباط با مکان یابی خطا در شبکه انتقال ارائه شده است. استفاده مستقیم از این روشها در شبکه توزیع به دلایلی همچون وجود انشعابهای متعدد، غیر یکنواختی فیدرها (خطوط کابلی، خطوط هوایی، سطح مقطع متفاوت انشعاب ها و تنه اصلی فیدر)، نامتعادلی (عدم جابجا شدگی خطوط، بارهای تکفاز و سه فاز)، ثابت نبودن بار و اندازه گیری مقادیر ولتاژ و جریان فقط در ابتدای...
Stochastic Assessment of Voltage Sags in Distribution Networks
This paper compares fault position and Monte Carlo methods as the most common methods in stochastic assessment of voltage sags. To compare their abilities, symmetrical and unsymmetrical faults with different probability distribution of fault positions along the lines are applied in a test system. The voltage sag magnitude in different nodes of test system is calculated. The problem with the...
متن کاملThe Effectiveness of Dynamic Voltage Restorer with the Distribution Networks for Voltage Sag Compensation
This paper discusses the Dynamic voltage restorer (DVR) operation and control for Voltage sags compensation. DVR is a series connected power electronic based device that can quickly mitigate the voltage sags in the system and restore the load voltage to the pre-fault value. Voltage sag associated with faults in transmission and distribution systems, energizing of transformers, and starting of l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied sciences
سال: 2021
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app11083574