Transformers and storage systems in the electrical grid must be provisioned or sized just as routers and buffers must be sized in the Internet. We prove the formal equivalence between these two systems and use this insight to apply teletraffic theory to sizing the electrical grid, obtaining the capacity region corresponding to a given transformer and storage size. We conduct a fine-grained meas...

Reliability of a hybrid renewable energy system (HRES) strongly depends on various uncertainties affecting the amount of power produced by the system. In the design of systems subject to uncertainties, both deterministic and nondeterministic design approaches can be adopted. In a deterministic design approach, the designer considers the presence of uncertainties and incorporates them indirectly...

In literature several methodologies based on artificial intelligence techniques (neural networks, genetic algorithms and fuzzy-logic) have been proposed as alternatives to conventional techniques to solve a wide range of problems in various domains. The purpose of this work is to use neural networks and genetic algorithms for the prediction of the optimal sizing coefficient of Stand-alone Photo...

The last is the basic industrial component in footwear manufacturing, from which product development starts. Correct last grading ensures the best fit for the intended group of users of the footwear model to be produced. The size marked on the last should respect the specific intervals defined in the different international sizing systems, like the European, UK, US or Mondopoint systems, which ...

An energy storage system works in sync with a photovoltaic to effectively alleviate the intermittency output. Owing its high power density and long life, supercapacitors make battery–supercapacitor hybrid (HESS) good solution. This study considers particularity of annual illumination due climate conditions Harbin, China. A global optimal PV-HESS sizing method is proposed by constructing operati...

This article exhibits the sizing, modelling, and characterization of a power supply (output 3.3 V, 200 mA max, 11 days full autonomy) dedicated to powering wireless sensor node without battery but usable as simply with battery. system is modular for various light levels (indoor outdoor). It easily integrable into node, using only commercial circuits. The choices photovoltaic surface (amorphous ...

Most inhabited islands in Indonesia are powered by expensively known diesel generators and isolated from the primary grid due to either geographical or economic reasons. Meanwhile, generator can be combined with a photovoltaic (PV) system Battery Energy Storage (BES) form hybrid power generation reduce energy cost increase renewable penetration. For this, proper sizing of each component is requ...

Dispatchable energy storage system (ESS) plays a critical role in the smart grid through shift and power support. However, it exhibits different operational strategies economic benefits application scenarios due to its inherent degradation behaviour. This paper aims explore technical feasibility of flexible traction supply (FTPSS) integrating ESS renewable sources (RES) based on load characteri...

Battery Energy Storage System (BESS) can be utilized to shave the peak load in power systems and thus defer the need to upgrade the power grid. Based on a rolling load forecasting method, along with the peak load reduction requirements in reality, at the planning level, we propose a BESS capacity planning model for peak and load shaving problem. At the operational level, we consider the optimal...