نتایج جستجو برای: sub synchronous resonance ssr mitigation
تعداد نتایج: 492513 فیلتر نتایج به سال:
In recent years, subsynchronous resonance (SSR) has frequently occurred in DFIG-connected series-compensated systems. For the analysis and prevention, it is of great importance to achieve wide area monitoring incident. This paper presents a Hankel dynamic mode decomposition (DMD) method identify SSR parameters using synchrophasor data. The basic idea employ DMD technique explore subspace matric...
Background: Glucose transporter (Glut), a cellular transmembrane receptor, has a key role in the metabolism of cell glucose and is also associated with various human carcinomas.Objective: In this study, we evaluated a magnetic resonance (MR) imaging contrast agent for tumor detection based on paramagnetic gadolinium oxide (Gd2O3) coated polycyclodextrin (PCD) and mod...
The harmonic mitigation using shunt active filters are most widely used in industrial and commercial applications. In this paper a Multi-Level Inverter is considered as DSTATCOM to compensate harmonics. The mathematical modeling of the system and design of the controller using synchronous reference frame theory is also presented. The nonlinear load generally known as diode rectifier load and an...
– We study effects of spatiotemporal additive noise in conjunction with subthreshold travelling waves on the spatial dynamics of excitable media. We show that solely additive noise is able to extract an inherent spatial periodicity of the media in a resonant manner, thus marking the existence of spatial coherence resonance in the studied system. Next, in addition to noise, we introduce to the m...
چوب مرغوب و میوۀ عالی گردو از لحاظ اقتصادی دارای ارزش زیادی است، بهطوری که از گذشته تا امروز بهشدت ازآن بهرهبرداری شده و در قانون حفاظت از جنگلها و مراتع، بهعنوان گونۀ حفاظتشده معرفی شده است. عملکرد گونههای جنس گردو، بهویژه Juglans regia در سالهای مرطوب افزایش و در سالهای خشک کاهش مییابد. از اینرو توجه به شاخصهای فیزیولوژیکی و مورفولوژیکی و شناسایی نواحی ژنومی دخی...
To meet the augmented load power demand, doubly-fed induction generator (DFIG) based wind electrical conversion system (WECS) is a better alternative. Further, to enhance flow capability and raise security margin in system, STATCOM type FACTS devices can be adopted as an external reactive source. In this paper, three-level coordinates with its dc terminal voltage connected common back-to-back c...
Abstract Recently, renewable resources such as wind, hydro, and tidal have experienced a rapid development. Electricity production, based on has been concentrated large scale. Additionally, doubly fed induction generator used in wind farms This machine is influenced by the multiple transient states that are happening grid. Many researchers studied effect of voltage-dip DFIG performance; none th...
An array of N comparators subject to the same input signal and independent additive noise, with the outputs from each comparator summed, is a useful noise model for a range of systems including flash analog-to-digital converters, DIMUS sonar arrays and parallel neurons. It has previously been shown that for certain threshold configurations the transmitted information through such an array is ma...
Results of an investigation on the application of STATCOM for damping subsynchronous resonance (SSR) in a multi-machine system is presented in this paper. For a multi-machine system which has a set of identical parallel turbine-generators or non-identical turbine-generators having torsional modes of the same frequency, generators may suffer from the same mode of torsional interaction correspond...
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