نتایج جستجو برای: distribution system planning

تعداد نتایج: 2870347  

Abaspour, Alireza , Khosroabadi, Mohsen , Naghiloo, Mahsa , Sadeghi, Hamid Reza , Sadoughi, Hamid-Reza ,

Introduction: Radiation therapy is one of the most important methods of cancer treatment. Radiation therapy uses symmetric and asymmetric fields in which the radiation dose distribution is different. To calculate the dose distribution, computer treatment planning systems are used which must have acceptable calculations accuracy. The aim of this study was to investigate the accuracy of the dose ...

The integrated planning of distribution system reveals a complex and non-linear problem being integrated with integer and discontinues variables. Due to these technical and modeling complexities, many researchers tend to optimize the primary and secondary distribution networks individually which depreciates the accuracy of the results. Accordingly, the integrated planning of these networks is p...

Distributed generation (DG) has been widely used in distribution network to reduce the energy losses, improve voltage profile and system reliability, etc.  The location and capacity of DG units can influence on probability of protection mal-operation in distribution networks. In this paper, a novel model for DG planning is proposed to find the optimum DG location and sizing in radial distr...

2016
H. Falaghi C. Singh M. Ramezani

In this paper, a framework is presented to solve the problem of multistage distribution system expansion planning in which installation and/or reinforcement of substations, feeders and distributed generation units are taken into consideration as possible solutions for system capacity expansion. The proposed formulation considers investment, operation, and outage costs of the system. The expansi...

2004
Stephen W. Birdwell

PROLOGUE With many of the uncertainties facing the distribution and provision of pharmacy and other health care services, future managers must understand the importance of conducting the strategic planning process. The purpose of this article is to provide an overview of strategic planning and the steps of the strategic planning process for organizations in the pharmaceutical distribution syste...

Ahmadreza Sebzari Fathollah Bouzarjomehri Kaveh Shirani Tak Abi Malihe Rezaie Yazdi Maryam Rezaie Yazdi Narges Kheirollahi Payam Izadpanahi

Introduction: The functionality and quality of any treatment planning system (TPS) strongly depends on the type of Algorithm which is used by it. Obviously, the role of dose distribution algorithms in calculation of prescribed dose inside the tumor in modern radiotherapy techniques has more important than past to achieve the best clinical outcomes, especially in tumors which ar...

2015
Manuel ALVAREZ

The distribution system planner should be able to coordinate smart grid solutions in order to find cost effective expansions plans. These plans should be able to deal with new added system uncertainties from renewable production and consumers while guaranteeing power quality and availability of supply. This paper proposes a structure for distribution systems planning oriented to help the planne...

Journal: :international journal of smart electrical engineering 2012
ehsan sadeghian ramtin sadeghi

optimal capacitor placement, considering power system loss reduction, voltage profile improvement, line reactive power decrease and power factor correction, is of particular importance in power system planning and control. the distribution system operator calculates the optimal place, number and capacity of capacitors based on two major purposes: active power loss reduction and return on invest...

This study presents a dynamic way in a DG planning problem instead of the last static or pseudo-dynamic planning point of views. A new way in modeling the DG units’ output power and the load uncertainties based on the probability rules is proposed in this paper. A sensitivity analysis on the stochastic nature of the electricity price and global fuel price is carried out through a proposed model...

Journal: :journal of optimization in industrial engineering 2016
javad rezaeian keyvan shokoufi sepide haghayegh iraj mahdavi

this paper aims to investigate the integrated production/distribution and inventory planning for perishable products with fixed life time in the constant condition of storage throughout a two-echelon supply chain by integrating producers and distributors. this problem arises from real environment in which multi-plant with multi-function lines produce multi-perishable products with fixed life ti...

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