تخمین شاخص فیدرهای فلیکرزا با روش ترکیبی نمونه برداری- شبیه سازی
محورهای موضوعی : پردازش چند رسانه ای، سیستمهای ارتباطی، سیستمهای هوشمندپیمان نظریان 1 , مجید مرادلو 2
1 - استادیار، مرکز تحقیقات انرژی و سیستم، واحد زنجان، دانشگاه آزاد اسلامی، زنجان، ایران
2 - استادیار، گروه برق، واحد زنجان، دانشگاه آزاد اسلامی، زنجان، ایران
کلید واژه: شاخص فلیکر, شاخص کوتاه مدت فلیکر , شاخص بلند مدت فلیکر , ردیابی فلیکر, نمونه برداری,
چکیده مقاله :
در این مقاله ابتدا به پیشینه موضوع و کارهای انجام شده در زمینه شبیه‌سازی و ردیابی فلیکر اشاره و سپس روش جدید ترکیبی شبیه سازی- نمونه‌برداری جهت تخمین شاخص‌های فلیکر شرح داده می‌شود. در ادامه، برنامه کامپیوتری FSP که به منظور تحلیل و ردیابی فلیکر ناشی از مشترکین صنعتی سنگین براساس روش این مقاله توسعه یافته است، معرفی می‌گردد. این نرم‌افزار در برگیرنده نیازهای شرکت برق منطقه ای زنجان در این زمینه بوده و با استفاده از امکانات موجود سخت‌افزاری و داده‌ای و لحاظ‌نمودن محدودیت‌های موجود، قابلیت انجام مطالعه روی فلیکر و تخمین شاخص‌های فلیکر را دارد. در ادامه، با استفاده از داده های استخراج شده از یکی از پست‌های 230 کیلوولت تحت مدیریت شرکت برق منطقه ای زنجان، فلیکر، در یک شبکه نوعی، مورد محاسبه و مطالعه قرار می‌گیرد. بررسی شاخص‌های فلیکر، در حالت‌هایی که امکان قطع فیدرها بصورت واقعی وجود ندارد، توسط نرم‌افزار FSP به‌سادگی صورت می‌پذیرد و امکان ردیابی مشترکین فلیکرزا و تخمین سهم فلیکر هر یک از آنها را امکان‌پذیر می نماید.
In this article, the background of the subject and the works done in the field of flicker simulation and tracking are mentioned first, and then the new combined simulation-sampling method to estimate flicker indicators is described. In the following, the computer program FSP, which was developed to analyze and track flicker caused by heavy industrial subscribers, based on the method of this article, is introduced. This software includes the needs of the Zanjan regional electric company in this field and by using the available hardware and data facilities and taking into account the existing limitations; it has the ability to study on flicker and estimate flicker indicators. In the following, using the data extracted from one of the 230 kV substations under the management of the Zanjan regional electricity company, flicker is calculated and studied in a typical network. Checking the Flicker indicators, in cases where it is not possible to actually cut off the feeders, is easily done by the FSP software, and it makes it possible to track flicker generating subscribers and estimate the flicker share of each of them.
Introduction: Flicker is a physiological phenomenon that is defined as a non-permanent sensory effect of a light source on the human eye, and this effect is caused by the change of flux or spectral distribution of the light source with time.
Method: The proposed method consists of two practical and theoretical parts, the practical part of which is the measurement of the required parameters of the network and the theoretical part, software calculations to determine the short-term and long-term flicker indicators, which will be obtained by simulating the behavior of the standard flicker meter.
Results: In this article, it was seen that checking the flicker indicators in situations where it is not possible to actually cut off the feeders, can be easily done by the designed software, and it gives the power companies the possibility to make a better decision to reject or accept the subscribers before signing the contract, or it makes it possible to track and identify the flicker generating subscribers.
Discussion: Due to the limitation in the sampling frequency, a measure has been taken to be more compatible with the flicker standard; In this way, an algorithm for performing linearization between the voltage samples obtained from the load flow has been used.
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