Most power transformers in the electrical industry are oil filled, and insulation failure occurs when oil–paper system weakens to extent that it can no longer support high voltage connected it. Dissolved gas analysis is a widely used method detect incipient faults oil-filled transformers.

At present, UAV (unmanned aerial vehicle) inspection has been widely used in the operation and maintenance of overhead transmission lines. However, instrument indications lines are reading usually by climbing artificially or manual from videos. Compared with pointer meter recognition applications other fields, is more difficult,due to its various complex photo conditions. In this paper, intelligent system arrester counter studied, a method based on deep learning proposed, which can...

The load characteristics of a power grid significantly change with the increase in number electric vehicles (EVs). In this study, we present method for predicting long-term Hubei Power Grid (A large China annual consumption 207.1 billion kWh 2020) up to until year 2030 development EVs. predicted include peak loads and hourly curves typical days different seasons target years 2025, 2030. proposed forecasting uses saturated prediction grey Verhulst model Monte Carlo simulation. future impacts...

Tugboat operation is an important part of port system, and efficient tugboat scheduling planning has a direct significant impact on which vessels come in or out the time. It exits that more than one simultaneously provide vessel with service tug at same moment time, so kind unconventional problem. Optimization studied, both process characteristic are analyzed, combined multiprocessor tasks theory, general set based identical processors presented. This problem parallel dedicated optimized by...

A method based on data fusion is proposed for detection of fire in dense bus ducts buildings. The environmental temperature data, infrared image and gas concentration are used the warning system. features extracted by statistical method, Faster RCNN (Region Convolutional Neural Networks), then three types fused inputted into SVM (Support Vector Machine) model to detect early. experimental results show that this has high recognition rate good robustness.

Car and light van thefts are increasing alarmingly around the world new guidelines driven by insurance companies, being set for vehicle manufacturers to make their products more secure. POLLUX has been developed as a guard against theft alarm system, this security system based upon machine vision technology acids level of protection systems in manner that does not intrusive drivers. It is on hardware real time acquisition driver's images using an active IR illuminator. This can locate...

A new embedded car theft detecting system has been introduced in this paper. This is based upon machine vision technology, acids a level of detecting, and it no intrusive on the drivers. uses face recognition technology. When unauthorized driver driving car, will detect him alarm by sending his image to police or owner.

Distribution transformer is the key equipment in distribution power grid, and sampling inspection main method used to ensure quality control. Inspection comprises many testing processes. Due various reasons, results may occasionally have errors be implausible. Only a few can detected empirically by inspectors. To solve this problem, anomaly detection proposed paper determine implausible reports assist re-inspecting. The well-known representative algorithms, which are now application domains...

Aiming at the problem of limiting high short-circuit current in 500 kV AC power grid, we develop an economical-type fault limiter (FCL) based on high-coupled split reactor (HCSR), namely, HCSR-FCL. This paper addresses designing early detection system Firstly, it introduces working principles HCSR-FCL and gives design control system. Subsequently, discusses real-time requirement system, apply algorithm ratio summation squared three-phase currents (SSC). Then, implementation applied...

Abstract To improve the power utilization efficiency of distributed energy units (DEUs) in DC microgrids, a centralized current iteration regulation approach is presented this paper. The partially represented by losses DEUs, which can be modelled as quadratic functions output currents DEUs. also dependent on line resistances between DEUs and buses, formulated basis well. Thus, total comprise converter losses, are verified to constrained‐convex function allocation coefficients. In paper,...

Electric vehicles (EVs) are considered to be the most promising technology upgrades in coming years reduce carbon emission, since EVs could replace conventional combustion as well mitigate power fluctuations grids. This paper focuses on addressing frequency stability issues isolated hybrid grids (IHGs) by introducing a fractional order proportional-integral-derivative (FOPID) control for grid-connected converters. A particle swarm optimization (PSO) technique is adopted optimize parameters...

In this paper, a vehicle anti-theft system has been developed. When the car is start, begins to work, it captures driver's video images using an active IR illuminator, then locates eyes and recognizes face PCA algorithm. If current driver found be unauthorized by compared his image with prestored, will alarm send owner or police through CDMA GPRS networks. This was tested in simulating environment subjects of different ages, with/without glasses, under mumination conditions, very robust, reliable.

Due to the fluctuation and complexity of financial time series, it is difficult use any single artificial technique capture its non-stationary property accurately describe moving tendency. So a novel hybrid intelligent forecasting model based on empirical mode decomposition (EMD) support vector regression (SVR) proposed. EMD can adaptively decompose complicated raw data into finite set intrinsic functions (IMFs) residue, which have simpler frequency components higher correlation. Tendencies...

The provision of video communication over wireless links is a challenging task because there difficulty to get better quality guarantee for transmission the current networks include GPRS or CDMA. In this paper, we developed embedded adaptive live streaming system on GPRS/CDMA network based MPEG4 compression standard. This presents performance enhancement real-time by employing an sender rate control scheme, which estimates available channel bandwidth between and receiver, then adjusts output...

Because of the randomness and volatility wind-solar power, their integration into grid is limited. An optimal configuration model distributed power generation system suggested, which includes total cost operation, economic loss voltage sag inhibitory effect supply fluctuation under energy storage equipment. The validity proposed verified in improved IEEE-33 node simulation system, by combining PSO (Particle Swarm Optimization) algorithm with TOPSIS (Technique for Order Preference Similarity...

In this paper, we propose the method of application level multicast for delivering real-time streaming video over Internet, and realized with a prototype multiparty videoconference system - Metrino. Different from conventional wisdom to use simple source-specific trees or shared overlay, construct bone share tree key nodes, added additional minor nodes nearest node as when new endpoints joined in, whole delivery graph sunflower (SDG). SDG can keep some efficiency while avoid reorganization...

Large-signal stability of direct current (DC) microgrids (MGs) are required to be seriously considered when more power converters penetrated. For DC MGs suffering from large disturbances, the electronics at both source and load sides operated within voltage limits ensure safety. However, no existing methods have been developed address non-conservative analysis a with physical variable constraints. To this end, comprehensive is in paper analyze large-signal typical voltage/current pulse-width...

The journal retracts the article titled “A Kalman Filter-Based Distributed Cyber-Attack Mitigation Strategy for Generator Units in Meshed DC Microgrids” [...]

This paper presents a performance enhancement method for real-time MPEG4 video transmission over mobile multihop ad-hoc networks by employing an adaptive sender rate control scheme. By this scheme, the estimates available channel bandwidth between and receiver, adjusts its' output of encoder using R-D framework frame-skip mechanism to fit estimated time-varying bandwidth. Experiment results show that quality can be improved