Learn More
In this paper, an asymmetrical fuzzy-logic-control (FLC)-based maximum power point tracking (MPPT) algorithm for photovoltaic (PV) systems is presented. Two membership function (MF) design methodologies that can improve the effectiveness of the proposed asymmetrical FLC-based MPPT methods are then proposed. The first method can quickly determine the input(More)
In order to maximize the available performance of the Li-ion batteries, a searching algorithm for an optimal fast charging pattern using particle swarm optimization (PSO) with an evaluation index based on the fuzzy-deduced cost function is proposed in this paper. An optimal five-stage charging strategy is obtained by the PSO searching according to the(More)
In this paper, a fuzzy-logic-control (FLC) based maximum power point tracking (MPPT) algorithm for photovoltaic (PV) systems is proposed. The power variation and output voltage variation are chosen as inputs of the proposed FLC, which simplifies the calculation. Compared with the conventional perturb and observe (P&O) method, the proposed FLC-based MPPT can(More)
A wireless DALI controlled electronic ballast for ultraviolet lamp (UVL) with high-sterilization quality and energy-saving control is proposed in this paper. Up to a maximum of 64 UVLs can be simultaneously controlled through the digitally addressable lighting interface (DALI) by the devised system to provide large-scale sterilization applications. The(More)
This paper proposes a searching strategy based on particle swarm optimization (PSO), combined with a fuzzy-deduced fitness evaluator (FDFE), to find the optimal multistage charging pattern that deliver the most discharged capacity within the shortest charging time. The objective function of the optimization problem is to maximize the cost-effectiveness for(More)
Monitoring of street lights and controlling is of utmost importance in developing country like India to reduce the power consumption. This paper presents a street light control system which combines various technologies: a timer, Liquid Crystal Display (LCD), a statistics of traffic flow magnitude, a photosensitive detector (LDR), infrared photoelectric(More)
Lithium ion (Li-ion) batteries have been widely used in various kinds of applications, including consumer electronics, green energy systems and electrical vehicles. Since the charging method has a significant influence on the performance and lifetime of Li-ion batteries, an intelligent charging algorithm which can properly determine the charging current is(More)