Based on analysis of construction and operation micro integrated energy systems (MIES), this paper presents economic optimization for their configuration sizing. After presenting typical models MIES, a residential community MIES is developed by analyzing direct consumption within general design procedure. Integrating with available current technologies local resources, the systematic considers prime mover, fed natural gas, wind power, photovoltaic generation, two storage devices serving...

This paper designed a DC/DC converter applied to electric vehicles, which uses the strategy of phase-shift full-bridge and can realize zero voltage conduction power switches. carried on brief introduction topological structure phase-shifted ZVS converter. A prototype was manufactured processed series experiments. The final experimental results were consistent with simulation, meet design requirements, prove feasibility scheme.

With the growing demand and working complexity of corn precision planter, it becomes more important to monitor performance through intelligent systems. A new fault monitoring system for planters was designed tested. This consisted information acquisition module, controller alarm input module display module. capacitive sensor utilized seed flow without changing track a planter. can whole sowing process seed-metering device in real-time. The status, type location be displayed on liquid crystal...

To address the problem that high-reliability and long-life complex products are susceptible to coupled fault mechanisms, challenge of constructing a macro behavior model for reliability evaluation, smart meter based on Phase-Type (PH) distribution under degradation-shock load is examined. This assessment method considers impacts environmental stress lightning shock meter. The performance degradation process caused by described Wiener model, which converted into representation PH in...

In this study, ice force on bridge piers during collision was investigated. Field test performed the Huma River Bridge in northern China and laboratory specimens to measure compressive strength at various temperatures strain rates. Test data analyzed using Universal Global Optimization (UGO) technique. Relations for as functions of temperature rate were obtained. The distribution a floating sheet measured continuously three days Cu50 sensors. observed be nonlinear, with lowest middle...

At present, power theft ways become increasingly subtle and intelligent. Power not only has caused a great loss to the nation sector, but also brought serious security risks equipment personal health. Although behavior of energy meter voltage transformer secondary circuit been well recognized effectively suppressed, anti method for current is still weak link. Therefore, this paper proposes transient based transformer. This applied pulse signal first, then obtained equivalent resistance...

Abstract Due to the lack of connection between configuration synthesis and performance indices, many configurations obtained cannot meet requirements, increasing difficulty selection prolonging design cycle parallel mechanism (PM). In order solve this problem, paper proposes an inverse Jacobian matrix construction method based on indices. The is realized by constructing singular values vectors directly related Furthermore, screw expression form matrix, a new integrated that can requirements...

Comprehensive evaluation the operation state of electric energy meter, put forward a kind meter failure probability calculation method. Based on to results and statistics is associated, through inversion correlation coefficient, fitting curve meter. Examples indicate that basically in line with actual situation equipment performance, it's effective method for estimating apparatus's current operating state, data support provided quantitative risk assessment

Fast isolating switch is one of the key components Hybrid DC circuit breaker. It difficult for conventional breakers to provide such a fast operating speed when switching time within few milliseconds. In this paper, based on study vacuum switch, focusing application small gap in isolation, arcless breaking situation, series experiments were designed. After solving problems synchronous as well voltage distribution every break, 200kV with less than 3ms developed, And through whole test

Abstract Silica sol-impregnated glass fiber products were prepared via the sol-gel method, with tetraethoxysilane (TEOS) as a precursor and hydrochloric acid (HCl) catalyst, characterized by 1 H NMR, FT-IR, solid 29 Si NMR analyses. The results indicated that structure of impregnating agents was significantly affected amount water added. With decrease in molar ratio added water, degree TEOS hydrolysis reduced, more ethoxy groups -OCH 2 CH 3 formed, resulting formation sol linear structure....

Fiber Bragg Grating (FBG) is being studied by more and researchers in the field of electrical engineering. An integrated detection system for temperature PD on cables based FBG proposed. At same time, method eliminating cross-interference between put forward, which ensures accuracy detecting sensitivity PD. A experiment shows can detect with high amplitude. And calculation wavelengths corresponding to peak reflection spectrums verifies effectiveness method.

With the improvement of intelligence and popularity smart meters, coverage power information collection systems has also expanded, failure meters is increasingly characterized by suddenness, complexity multifaceted. Only through maintenance personnel found that meter bound to have uneven input timely repair. This paper analyzed relationship between fault types phenomena causes faults based on statistics, preprocessing, clustering prediction methods, establishes a prediction. When it...

With the proposal of "carbon neutrality" goal in various countries, carbon emission as a global hot issue has been studied more and more. In this paper, monitoring indicator system for power users is built to solve current lack comprehensive assessment users. First, paper summarizes existing calculation methods flow electric power. Based on tracing method, method determined from source side, transmission side distribution system. Secondly, based factor analysis characteristics itself,...

According to the shortage of systemic experimental environment for fault line selection method, it puts forward a test and research method based on RTDS. A consists simulation models automatic equipment, are built RTDS, which can simulate kinds typical output analog signals. Through many types tests, methods proved feasible, algorithm also exact practical.

The subject of this paper is to analyze the influence damping resistance in resonant grounding system. In considering widely used automatic arc suppressing coil, it focuses on relationship between and accuracy coil tuning by way simulation operation testing, a proposal made for selecting can resolve some issues research application.

The Failure Mode, Mechanism and Effect Analysis (FMMEA) method is a reliability analysis that investigates the possible failure mechanisms their modes for each component of product, then determines how mechanism affects other components. This article uses FMMEA to analyze smart meter's metering module. Based on actual environmental conditions, main corresponding sensitive stresses module are determined, which provide basis index verification test design.

Bayesian network utilizes graphical model to describe dependencies among variables in probabilistic way, it is one of the most important for uncertainty processing Artificial Intelligence. Incremental learning networks has been received more attentions recent years, this paper a novel method proposed learn from incremental data. In method, scoring function designed adaptively adjust tendency matching new and old data process learning. We propose an improved adaptive structure algorithm...

Though the popularization of smart electric meter is benefiting thousands households, its quality inspection and replacement contributes to a tremendous waste human material resources, thus makes it urgent study technology operating performance assessment for meter. The Deep Belief Network kind deep learning model, which has advantages fast training speed accurate results. In this paper we propose an model meters based on belief networks. We provide approach establish train network, then...