نتایج جستجو برای: inadequate distribution of power

تعداد نتایج: 21241465  

Journal: :Int. J. Communication Systems 2011
Min Chen Liang Zhou Takahiro Hara Yang Xiao Victor C. M. Leung

Recent advances in communications technologies have witnessed a growing and evolving multimedia content delivery market based on information gathering, manipulation, and dissemination. It is a fact that personal communications, computing, broadcasting, entertainment, etc. have turned into streams of multimedia content, and the various communication and network technologies have become the means...

Distribution of distributed generation resources in distribution systems has several advantages, including reducing losses, improving voltage profiles, reducing pollution, and increasing system reliability. However, one of the most important points regarding the placement of these resources in distribution networks is economic issues and the return on investment and the increase in profits from...

Journal: :JAMDS 2003
Azmeri Khan Glen D. Rayner

Abstract. This paper studies the effect of deviating from the normal distribution assumption when considering the power of two many-sample location test procedures: ANOVA (parametric) and Kruskal-Wallis (non-parametric). Power functions for these tests under various conditions are produced using simulation, where the simulated data are produced using MacGillivray and Cannon’s [10] recently sugg...

ژورنال: پژوهش های ریاضی 2016
Shadrokh , A, Yaghoubzadeh Shahrestani , Sh, Yarmohammadi, M,

In this Paper, We propose a new three-parameter lifetime of Power Series distributions of the Family Gampertz with decreasing, increasing, increasing-decreasing and unimodal Shape failure rate. The distribution is a Compound version of of the Gampertz and Zero-truncated Possion distributions, called the Gampertz-Possion distribution (GPD). The density function, the hazard rate function, a gener...

M. Doostizadeh, M. Ettehadi

Traditionally, conventional generation unit was used to provide ancillary services e.g. reactive power support, and spinning reserve. Nonetheless, with the emergence of highly penetrated distributed energy resources (DERs) systems and considering how beneficial they can be; it appears reasonable to use them as reactive power providers. Therefore, this paper introduces a new procedure for DERs t...

In this paper, a new method for modelling and estimation of reliability parameters of power transformer components in distribution and transmission voltage levels for preventive-corrective maintenance schedule of transformers is proposed. In this method, with optimal estimation of Weibull distribution parameters using least squares method and input data uncertainty reduction, failure rate and p...

In this paper, the combined and new methods in distribution network with distributed generation are introduced to allocate fixed cost fairly that is applicable for radial network. Allocation of fixed cost based MW-mile is not fairer method. Fixed cost allocated based on average or peak consumed power using MW-mile that is not fairer method. It is essential to a new method introduced. Unfair pri...

Journal: :مهندسی قدرت ایران 0
a parizad iran university of science and technology, iran a.h akhazali iran university of science and technology (iust), iran mohsen kalantar iran university of science and technology (iust)

due to the increasing interest on renewable sources in recent years, the studies on integration of distributed generation to the power grid have rapidly increased. in order to minimize line losses of power systems, it is crucially important to define the size and location of local generation to be placed. minimizing the losses in the system would bring two types of saving, in real life, one is ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده مهندسی 1387

چکیده ندارد.

M. H. Hemmatpour M. Mohammadian M. Rashidinejad

In recent years, in Iran and other countries the power systems are going to move toward creating a competition structure for selling and buying electrical energy. These changes and the numerous advantages of DGs have made more incentives to use these kinds of generators than before. Therefore, it is necessary to study all aspects of DGs, such as size selection and optimal placement and impact o...

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