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This paper, present a study of a system consist of a hybrid association of thermoelectric generators, that generates electricity from heat using the Seebeck effect. This work helps demonstrate the potential of these modules as a renewable energy source by simulating their performance in level of electrical power generation and cost. The parameters of this system are simulated to give an idea about...
The objective of the paper is to present the modelling of the single phase grid connected Photovoltaic (PV) generation and its impact on low voltage grid. The network model has been developed in PSCAD software. The designed system includes low voltage network, single phase voltage source inverter (VSI) to control active (P) and reactive power (Q) flow to the grid and PV panel as the main source of...
This paper presents the design of a control strategy for Hybrid Photovoltaic — Battery Generator for Onboard Automotive Application. The proposed strategy is based on maximum power point tracking (MPPT) controller using adaptive fuzzy logic approach combined with an energy management supervisor in order to ensure system efficiency under variation of operating conditions: load requirements, meteorological...
The objective of this work is to study the performances of hybrid system comprising wind and photovoltaic sources with battery storage. The grid integration of the PV system is carried out via a three phase three level neutral point clamped (NPC) inverter. The interface of connection to the electrical supply network consisted of a continuous bus, filters RL, the regulation of the powers and the management...
Usually, water-pumping systems for diesel generator DG were used to extract the water in particular in remote areas. However, growth in the photovoltaic (PV) market and wind power make them competitive. In this context, a comparative study of three different types of pumping systems with tank storage namely PV / DG / Tank, PV / Tank and DG / Tank have been proposed. A techno-economic study of these...
This paper presents the implementation of an MPPT algorithm into a capacitor storage based DC-DC converter destined to photovoltaic systems. In the proposed photovoltaic system, ZETA converter controlled by the pulse width modulation (PWM) technique is studied with the Incremental Conductance (Inc-Cond) MPPT algorithm which allows transferring the maximum of power from the generator to the load where...
With the increasing penetration of renewable energy, the uncertainty of the natural resources such as wind and solar power will affect the reliable operating of an autonomous microgrid. Based on the universal generating function (UGF) method, this paper introduced a multi-state probability model used for adequacy assessment of an autonomous microgrid and also proposed a calculation methodology of...
This work has an interest to study the performance of the MPPT control proposed in the case of standalone PV installations where batteries are used for the storage of the energy produced. We analyze the feasibility, the rapidity of our MPPT control and also its precision. In addition to that, a special attention was given to compare performances of the proposed MPPT control to simulation results (optimums)...
In this paper we propose the structure and the functioning of a photovoltaic (PV) connected to the electric distribution and transmission network, equipped with the malfunction detection blocks. The studies that were carried focused on the injection of a power of 16 KW, produced by a PV panel field, on the electrical network of medium voltage (25 KV). In order to the reliability of the injection system...
The production of electricity by a photovoltaic source depends and varies according to the climate changes; which perturbs and affects the optimal use of a photovoltaic system. This paper will set a comparison between a PID controller and a Sliding Mode Control. Both controllers are applied to an optimal algorithm in order to extract a maximum power from the photovoltaic generator. This study aims...
This paper presents an intelligent battery management system (iBMS) used in Home Microgrid working in a grid-connected and island mode. The microgrid is composed by a PV generator, Battery system and a small residential group. This microgrid is located in a Caribbean zone which an average solar radiation greater than 1000 W/m2 but, with large intermittency due to the movement of cloud and also a high...
This article presents a new power electronic smart load controller which enables improved usage of the energy provided by the distributed generators (DG) present in comprehensive nanogrids. A typical nanogrid configuration is considered and analyzed. The analysis shows that significant part of the energy generated in the present nanogrids is lost due to limited or absent distribution networks and/or...
Distribution networks are not perfectly balanced all time due to the nature of dynamic loads in the system. Photovoltaic (PV) systems started to be integrated into these distribution networks as distributed generators (DG) through inverters. In addition, wind turbines also started to be integrated but not as distributed as PVs. Both DGs have a fluctuating power outputs due to the intermittent resources...
Reasonable control of multiple energy forms for load power supply can effectively improve economy and reliability of micro-grid(MG) operation, however, up till now, these two problems of siting hybrid energy systems(HEMS) and scheduling them have been separately solved. In order to bring its flexible power supply capacity into fully play, this paper put forward an algorithm to optimally solve the...
This work shows a new control method for an isolated photovoltaic system using a finite control set model predictive control (FCS-MPC). The designed control system gives us a good tracking of the optimum current reference, current at which the maximum power is reached. The photovoltaic system is connected to a variable resistive load through a DC/DC boost converter. The FCS-MPC controller gives the...
This paper deals with energy and economic analysis of grid-connected photovoltaic (PV) systems with storage. According to the current Italian market rules, the first goal is to calculate the capacities of PV systems and batteries corresponding to the cost-optimal solution. Then, cost-effective solutions are investigated to maximize self-consumption, minimizing grid injections. Simulations are performed...
It is now becoming increasingly clear that supplying electricity to rural areas is often more economical and cost-effective when it is generated via renewable energy sources rather than grid extension due to prohibitively high costs associated with the latter approach. This paper espouses a better alternative to grid extension for remote communities based on a self-sustaining local economic ecosystem...
The multilevel multi-string inverter has gained much attention in recent years due to its advantages in lower switching loss, better electromagnetic compatibility, higher voltage capability, and lower harmonic distortion. Solar Energy is one of the favorable renewable energy resources and the multilevel inverter has been proven to be one of the important enabling technologies in photovoltaic (PV)...
This paper explores the possibility of optimizing two control strategies currently available for photovoltaic (PV) plants, namely additional reactive power and active power reduction. As the penetration of PV plants is expected to increase, controlling such plants during faults becomes increasingly important. The stability of the power system during a fault and immediately after is affected by the...
The use of multilevel inverters in Photovoltaic (PV) applications have attracted major attentions in both industry and academic research. This paper presents a PV system based on a single-phase Quasi-Z-Source (QZS) multilevel inverter with a great reduction in number of switches. The introduced inverter is based on a Multilevel DC link (MLDCL) structure and an H-bridge inverter. The MLDCL consists...
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