Summary Even with significant progresses in the maximum power point (MPP) research area, necessity to improve existing methods becomes mandatory increase energy conversion efficiency. Since power–voltage ( P ‐ V ) characteristic curve of photovoltaic (PV) arrays has multiple peaks under partially shaded (PS) conditions, conventional MPP tracking (MPPT) control have difficult challenge locate global (GMPP) among many local MPPs (LMPPs). In recent years, numerous papers been focused on...

Since 2013, the biggest Caribbean island, Cuba, has been undertaking an energy matrix change. There is a strong political intention to replace fossil fuels by renewable and improve efficiency security of national system. By 2030, 24% electric power shall be produced from sources. Transition centralized fuel fired system towards distributed generation based requires changes conventional planning design procedures as well physical structures This paper introduces three analysis axis: Scenario...

The optimal control of parameters in a system assumes an important role industrial processes. Models based on boiler-turbine plant are proposed various applications. target this paper is to apply intelligent techniques boiler simulator improve the speed and precision control. In order release such task, genetic-fuzzy controllers able tuning time duration specific drum signals, designed. results show good relevant improving performances classical structures.

Modern DC-DC power conversion represents an important challenge because connected loads are not purely resistive as it has been conventionally considered. Furthermore, the corresponding converters perform functions which limited to regulate either a specific output voltage or current. One of these new is transfer regulated different types loads, emerge in context microgrids and electric vehicles, sliding-mode control (SMC) actor its versality, robustness systematic design. This paper...

The unstable ON and OFF state trajectories of a boost converter supplying constant power load (CPL) are appropriately combined using sliding-mode control (SMC) with suitable surface to yield stable trajectory that reaches specified equilibrium point. Selecting the optimum involves comparative analysis among potential candidates in terms stability, disturbance rejection, conduction losses inrush current. performance as switching function polynomials degree zero (non-zero constant), one...

<p class="icsmkeywords">Esta investigación tiene como objetivo el diseño de una metodología diagnóstico fallos para contribuir al mejoramiento los indicadores eficiencia, mantenimiento y disponibilidad Sistemas Fotovoltaicos Conexión a Red (SFVCR). Para lograr dicho objetivo, se realiza estudio del inversor conexión red modelo matemático generador fotovoltaico. Luego cuantifican las pérdidas operacionales fotovoltaico adapta éste condiciones reales sistema través un ajuste polinomial....

Selecting the converter in output stage of an ultrafast charging system for electric vehicles (EVs) has to take into account different constraints imposed by number ports and type power distribution (AC, DC or both). This paper discusses qualitative criteria selecting most appropriate a given electrical architecture considering structures reported literature. Unidirectional topologies with galvanic isolation such as LLC resonant phase shifted full bridge (PSFB) structure, together...

EVs will play an important role in transport, climate change and electrification. However, there is a consensus that one of the main obstacles to full market penetration so-called range anxiety (fear not having enough charge vehicle). Electric vehicle charging infrastructures have two opposing approaches their use. For urban routes, where distances travelled, EV usage times are low, on-board alternative current (AC) chargers (Level 1 2) can meet requirements most situations. The solution...

A computational thinking under simulated environment with amendable properties is promoted. It exemplified on a real drum boiler multi-loop linear control. The model based the boiler-turbine plant P16/G16, which oil-fired and rated power 160 MW, at Sydvenska Kraft AB Plant in Malmö, Sweden. proficient symbolic numerical combination points out fast very efficient automatic engineering calculation. This contribution aims tailor-made small simulators Matlab for those industrial processes are...

<p>Muchas de las microcentrales hidroeléctricas, útiles por la producción electricidad en regiones difícil acceso, operan régimen autónomo, lo que es necesario realizar regulación frecuencia tensión generada. Una vía regular variando potencia disipada cargas balastros mediante convertidores AC-AC. Estos consumen reactiva, empeorando el factor a salida del generador. Sin embargo, una alternativa para evitar empeoramiento potencia, empleo un rectificador trifásico diodos tipo puente con...

Micro-size hydro power plants are commonly used at remote areas to supply islanded AC micro-grids. A typical way control grid frequency is manipulate active dissipated in ballast loads by AC/AC converters. However, conventional asymmetrically switched thyristor controlled converters consume reactive degrading the factor generator output and transmission efficiency. In this paper operation of a symmetric angle switched, bridged three-phase rectifier three single-phase rectifiers connected...

In this work, an analysis of the quality electrical energy is carried out, based on replacement High-Pressure Sodium Vapor Lamps (HPSV) with Light Emission Diode (LED) lamps in low voltage networks public lighting.The study takes into account advantages and disadvantages using technology, among efforts to reduce electricity consumption achieve higher rates electro-energy efficiency.The effect current harmonics transformation losses, line profiles circuit analyzed.Flow runs lighting are...

Barbados spends approximately seven percent of annual gross domestic product (GDP) on imported fuel, a significant amount in foreign exchange constrained economy. In addition to the burden relatively high cost electricity is major constraint impacting external competitiveness local businesses. This paper uses model long-run energy development for evaluate whether there are gaps medium vision Barbados. It expected that study would be able identify any potential shortfalls future supply under...

This paper presents a two-level hierarchical control method for the power distribution between hybrid energy storage system (HESS) and main dc bus of microgrid ultrafast charging electric vehicles (EVs). The HESS is composed supercapacitor battery an essential part to fulfill demand EVs in made up 220 VRMS ac bus, two buses 600 V 1500 V, respectively, four points. A state machine defines operating modes establishes conditions corresponding transitions among them, namely, from injecting...

Los acelerados cambios tecnológicos en el aprovechamiento de las fuentes renovables energía y la movilidad eléctrica, junto a apuesta del teletrabajo beneficio un mundo sostenible, promueve demanda una mejora educación superior. Ésta tiene como fin llevar cabo instrucción teórico-práctica efectiva instituciones superior, alineada adquisición nuevas habilidades por los egresados, que les hagan estar preparados actualizados contexto empresarial globalizado sostenible. La evaluación efectividad...

To couple the several devices in a distributed system control with other levels, it is necessary to use gateway. In our case some development cards based microcontroller using area network (CAN) controller simulates an industrial laboratory. The gateway PC including CAN-ISA card and software communication monitoring from LAN. As perform this coupling real time, must work tasks, be intelligent. This paper exposes design criterion steps taken into account get device implementation guarantee...

The PLC programming is designed for a medium user of this equipment. Hence, object-oriented qualities can not be created in the same way established higher languages like C++, Java, Eiffel. However, they should fulfil theoretical principles that govern them. In ALS 4.0 language hierarchy classes set three big trees which include areas application Its data and functions are encapsulated with degrees visibility (private, protected public). dynamic pass types execution time allowed. Persistence...

Currently, as part of the distributed generation paradigm, photovoltaic energy has a growing development. The diversity loads, their nonlinearity, and penetration renewable sources (RES) cause worsening quality indicators. main indicators that affect hybrid systems are voltage current harmonic distortion, deviation, asymmetry in system. construction physical mathematical models software applications, such MATLAB, Simulink, Simscape, makes it possible to simulate operating conditions these...