A maximum power point tracking (MPPT) controller was used to make the photovoltaic (PV) module operate at its (MPP) under changing temperature and sunlight irradiance. Under partially shaded conditions, characteristic power–voltage (P–V) curve of PV modules will have more than one point, least local a global point. Conventional MPPT controllers may control array rather can be also implemented by using soft computing methods (SCM), which handle partial shade problem. However, improve...

In this study, the authors focused on developing a bidirectional power converter for stand-alone photovoltaic generation system when lithium-ion battery is used to regulate supply. Also, small-scale air-conditioner was provided as load developed examine efficiency of converter. The overall framework proposed comprised maximum point tracking controller, buck–boost soft-switching converter, and air-conditioner. By attaching resonant branch general applying simple switching signal control, soft...

The main purpose of this study was to research and develop maximum power point tracking (MPPT) a photovoltaic module array (PVMA) with partial shading sudden changes in solar irradiance. Modified cat swarm optimization (MCSO) adopted track the global (GMPP) PVMA. Upon irradiance or when certain modules PVMA were shaded, (MPP) will change accordingly, multiple peak values may appear on power–voltage (P-V) characteristic curve. Therefore, if pace is constant, time required MPP might extend,...

The remaining useful life (RUL) prediction of Lithium-ion batteries is closely related to the capacity degeneration trajectories. Due self-charging and regeneration, trajectories have property multimodality. Traditional models such as support vector machines (SVM) or Gaussian Process regression (GPR) cannot accurately characterize this This paper proposes a novel RUL method based on Mixture (GPM). It can process multimodality by fitting different segments with GPR separately, that tiny...

This study primarily focuses on the use of radio frequency identification (RFID) as a form traffic flow detection, which transmits collected information related to directly control system through an RS232 interface. At same time, sensor analyzes and judges using extension algorithm designed achieve objective controlling traffic. In addition, situation is also transmitted remote monitoring ZigBee wireless network communication technology. The developed in this can perform transmission reduce...

Economic Load Dispatch (ELD) is a key issue in power systems and its goal to achieve minimum economic costs by allocating the output of generator units when satisfying load demands operating constraints. As dimension variables constraints increase, traditional mathematical method gradually not suitable for ELD. This paper proposes an Improved Bird Swarm Algorithm (IBSA) solve ELD problem system. By introducing nonlinear cognitive social coefficients, proportion individual learning birds can...

In order to solve the problems caused by susceptibility changing weather conditions and complex load of photovoltaic (PV) systems, fact a single target inverter control strategy cannot effectively mitigate large voltage fluctuations at point common coupling (PCC), an integrated reactive power for PV inverters is proposed. According conditions, this divided into four modes: normal operation mode, reverse cloudy mode night mode. The modes switch between each other under specific switching...

In this paper, a hybrid optimization controller that combines genetic algorithm (GA) and ant colony (ACO) called GA-ACO is proposed. It applied to photovoltaic module array (PVMA) carry out maximum power point tracking (MPPT). This way, under the condition PVMA partially shaded multiple peaks are produced in power-voltage (P-V) characteristic curve, system can still operate at global (GMPP). solves problem seen general traditional MPPT controllers where works local (LMPP). The improved GA...

In this paper, an improved firefly algorithm (FA) was proposed for application on photovoltaic module arrays (PVMAs) with partial modules under shading so that the maximum power point tracking (MPPT) could be implemented. Firstly, a new model of high voltage step-up converter developed executing MPPT PVMA. For energy storage inductor converter, architecture coupled adopted switch did not need to operate excessive duty cycle, which increase gain and reduce ripple output at same time. To...

In this study, a modified gray wolf optimization algorithm (GWOA) was proposed to facilitate the maximum power point tracking (MPPT) of photovoltaic module arrays (PMAs). To increase voltage conversion ratio and achieve boost through reduced duty cycles, high-voltage step-up converter with coupled inductor used replace conventional energy storage inductor. global MPPT, iteration parameters GWOA were adjusted according slope PMA power–voltage (P–V) curve. According simulation results, is more...

In this paper, a method based on an improved intelligent bat algorithm (IIBA) in cooperation with voltage and current sensor was applied maximum power point tracking (MPPT) for photovoltaic module array (PVMA), where the generation performance of PVMA enhanced. Due to partial shading from climate changes or surrounding environment, multiple peak values were generated power–voltage (P-V) curve, conventional MPPT technology could only track local (LMPP), hence reduction output PVMAs....

A 155.52 Mbps-3.125 Gbps continuous-rate clock and data recovery (CDR) circuit using the full-rate bang-bang phase detector is presented. frequency proposed to eliminate harmonic locking problem even with a wide range of rates its theoretical analysis also discussed. quadrature divider presented generate clocks accurate phases. This CDR has been realized in 0.18-/spl mu/m CMOS process die area 1.1/spl times/0.8 mm/sup 2/. It consumes 95 mW at highest bit rate 3.125 Gbps. can recover NRZ...

In this paper, a circuit-based simulation model of photovoltaic (PV) panel using PSIM software package is first developed. Then, 3kW PV arrays established the proposed with series and parallel connections are not only employed to represent its I-V P-V characteristics at variable surface temperatures isolations under normal operation, but also carry out fault simulation. The can be applied any brand modules by setting parameters properly. A system constructed SIEMENS SP75 solar selected as an...

This study developed a fault diagnosis meter based on ZigBee wireless sensor network (WSN) for photovoltaic power generation systems. First, the Solar Pro software was used to simulate 9-series, 2-parallel module array formed with Sharp NT-R5E3E as well record data of at different levels solar radiation, temperature, and conditions. The derived were establish weights extension neural (ENN). in system required extracting system's real-time radiation temperatures; this thus an acquisition...

This study aims to develop a soft‐switching interleaved converter with high‐voltage conversion ratio using single auxiliary switch. As step‐up voltage converter, it performs zero switching and current operations on main switches by means of the manipulation In this manner, both loss stress can be reduced, giving rise an improvement in efficiency. Placed parallel available, merely resonant branch is employed proposed mechanism, simple elegant way reach goal. proposal further applied fuel cell...