Electric vehicle as a new kind of transportation vehicle has broad application prospects in our country. Charging facilities which provide energy with electric vehicles are important infrastructure in vehicle industry development. The equivalent model and working principle of AC charging spots are studied...

Electric vehicles with zero pollution, zero noise, driving a simple advantage has become the focus of attention, but the battery life is weak and charging is not convenient and so on, has become a major obstacle to limit the use of large-scale. Therefore, it is imperative to develop the charging pile...

Cable winch is a crucial component of the shore power system, and Permanent Magnet Synchronous Motor (PMSM) with high efficiency and good maintainability is always used as the drive motor for ship cable winch. In order to deal with the various and complex ocean environment, it is rather important for...

With the comprehensive construction of smart grid, electric power data resources rise up sharply. Make full use of electric power big data can provide an effective way for the safe operation of power grid and high-quality power supply. In this paper, the electric power enterprises' big data was divided...

The electricity universal service is an important public welfare policy. In this paper, the general economic analysis framework of electric universal service is constructed, the necessity of monopoly supply and government regulation is demonstrated, and the attribute of electricity universal service...

In FACTS devices auxiliary signals are widely used to enhance damping and mitigation of Subsynchronous Resonance in Power System. Choice of auxiliary signals is indeed a difficult choice. In this paper STATCOM is installed in the middle of Power system and it is shown that computed generator internal...

The author analyses the infinite bus power source model used in the power system dynamic simulation lab, and make further study on the industry standard for the Dynamic Test of the Power System Protective Products, then introduced a design scheme for the infinite bus system dynamic model, based on which...

In recent years, more opportunities is provided for Chinese electric power group to participate overseas power projects along with the application of public-private partnership(PPP), and how to evaluate asset structure became to be a crucial for the smooth implementation of these PPP power project. This...

In this paper, by constructing a 3-phase pool game, instructions that large industrial electric power direct purchase will leads to price distortion under the condition of imperfect regulation, increase the electricity price cross-subsidy that general industrial and commercial users to large industrial...

Smart grid is a high-speed, two-way, real-time, and integrated communication system, which can real-time monitor and control grid operation, prevent accident and clear fault timely. A key component of the Smart Grid is a communications infrastructure for data acquisition, monitoring, control and protection....

In order to evaluate the condition of the high voltage circuit breaker (HVCB) operating mechanism, a method based on the coil current (CC) waveform of the operating mechanism has been studied in this paper. A finite element method (FEM) with high accuracy has been used to establish an electromagnetic...

Aiming at the demand of smart home application, the smart home control system is analyzed and researched. We proposed a low cost and expandable home control system as well as the network communication solution. Based on the Android mobile phone platform or tablet computer, a set of control system is...

This paper built the simulation model of vector control system of permanent magnetic synchronous machine based on MATLAB SIMULINK. The simulation results verified the feasibility of the vector control system on PMSM. The hardware circuit of motor control and driver board which used digital signal processor...

Well dispersed MnO2 micro-flowers were grown directly on carbon nanofibers via a simple hydrothermal technique without any template. Structure and morphology were characterized by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) equipped with rapid EDX (energy dispersive...

In response to the quality and the ability to survive for the guided ammunition in a complex electromagnetic environment, the guided ammunition quality for storage and use are analyzed from the design of the ammunition, structure wiring and protective material for the static electricity, lightning electromagnetic...

Coal bed methane(CBM) exists in the pore of coal, and the fracture of the coal seam also provides the seepage path for mining. The correct evaluation of the pore is the key to the exploration and development of coalbed methane, which is also a difficult point. In this paper, we use NMR experiments to...

In order to solve the problem that with the interference of on-site GIS to PD signals, the type diagnosis and fault location of insulation defect are affected. This paper proposed a new morphological filtering algorithm based on morphological filtering theory is proposed, which combines the basic operations...

This paper first analyzed the current situation of highway ETC system of domestic and international, then depth researched on some key technologies of RFID and image identification, established ETC system of city application, on the one hand, it can greatly improve vehicles management efficiency, prevent...

An automatic recognition method of parasitic ovum under the high noise is studied in this thesis. Considering the status of the complex background in the parasitic ovum images, firstly, the corresponding method is applied to image preprocessing, then, the noise removing and edge segmentation combined...

There is lack of effective method of camouflage effect evaluation of pattern painting of moving object. To evaluate the camouflage effect objectively and quantitatively, the method camouflage effect evaluation of pattern painting based on moving object detection is proposed. Three moving object detection...

By analyzing and mining the source geospatial data, provide a reference for the government macro decision-making and public opinion monitoring and provide the basis for enterprise precision marketing and the individuality service. The experimental results show that, within the scope of the study area...

LNA (Low-noise amplifier) is RF front-end major device for receiving the signal, which is used to amplify the signal close to noise. Stability, gain, input and output VSWR and noise are the most important factors to be considered in the LNA actual design. In this paper, we use the ADS software for the...

To study the components and parameters relationship between MMC - STATCOM and traditional STATCOM, the mathematical model of MMC-STATCOM is established. Then, the equivalent expressions for MMC-STATCOM module capacitance and inductance bridge arm are derived, compared with traditional STATCOM. On account...

In order to achieve the pattern recognition of gas-insulated switchgear GIS defect types of partial discharge, in this paper, the analysis of gas discharge theory and ANSYS simulation software are used to qualitatively analyzed the defect type. Based on the PD characteristics caused by four typical insulation...

In this paper, an improved leader-follower configu-ration control algorithm is proposed to solve the formation problem in Vicon 3D motion capture system. Firstly, an appropriate velocity filter with weight is designed and the acceleration gain matrix is reconstructed to reduce noise and oscillations...

Fabric defect identification has constituted a key part in the online quality control regarding the textile manufacturing process. Focusing on the limitations of conventional fabric defect identification methods in representing local geometry of fabric defects, a fully adaptive image processing technique...

Pressure vessel is widely used in the industrial engineering and will deform when working in the long time. Large deformation will do great harm to people and property. 3D laser scanning method uses non-contact measuring method and can directly obtain the point cloud data of the mass surface which can...

With the wide application of mobile terminal in smart home system, the interaction design of mobile terminal becomes more and more important. Interaction design is different from a simple interface design, it will combine interface view, process logic, interactive manner, taking into account the beautiful...

In this paper, we consider function projective lag syn-chronization of two identical hyperchaotic systems. Impulsive control method is employed to design a controller to achieve function projective lag synchronization. Based on the Lyapunov stability theorem and impulsive control theory, a sufficient...

In order to analyze the dynamic performance of hybrid excitation claw-pole alternator, this paper models and simulates a GA fuzzy self-adaptive PI control system for the alternator based on the derived mathematical equations. According to the simulation results, compared with traditional PID control...

TPS (Taiwan Photon Source) is a 3rd generation synchrotron light source, which is aimed to provide high brightness beam source for various novel scientific researches. Beginning from the start of 2016, to improve the beam orbit stability, fast orbit feedback system (FOFB) is installed and tested to eliminate...

Software-Defined Networking (SDN) has been one of the most promising candidates for future Internet architectures, and it may be one of the best candidates for the future communication system of Smart Grid. Moreover, SDN facilitates a variety of technology innovations in network security area. In this...

In previous studies about cloud computing scheduling algorithm, people usually ignore impact of data transmission between tasks, but data locality and data transmission have a great influence on the data-intensive task, especially for scientific workflow scheduling. This thesis explains importance of...

As the central of railway hub, railway marshalling yard is the base for vehicle distribution and disintegration. Time-consuming of operation and residence for vehicle is common to spend 70% of the goods turnover cycle, thus the railway line here is extremely complex. Meanwhile, there are few articles...

In air supply sub-system, the stack pressure influence the stack efficiency as well as air compressor power consumption. In order to improve system global efficiency, the optimization of system efficiency based on the two inputs manipulation variables such as opening position of back pressure valve(BPV)...

According to the Clausius inequality, it can be proven that the quotient of work-temperature in the real process is no less than one in the reversible process. On the basis of the Carnot theorem, it can be proven that the work in the real process is no less than one in the reversible process, or the...

Block Su 75 of Sulige gas field belongs to low permeability, low pressure, and low abundance gas reservoir and the number of the wells producing water has been arising year by year, which means the problem which is called as liquid loading has become the main factor influencing the gas well deliverability....

A wind power operation and maintenance ship is one kind of the important equipment to maintain the offshore wind farms. In this paper, the whole structure of operation and maintenance of catamaran is introduced firstly, finite element model of the catamaran and a hydrodynamic calculation model are established,...

In order to analyze and compare the operating characteristics of high frequency isolated single and three-phase DC-DC converters under the same traditional control method. Firstly, comparisons on single-phase dual active bridge bidirectional DC-DC converter (DAB) and three-phase DAB based on the traditional...

In the traditional power flow analysis, the output of generator is controllable and certain. While due to the intermittence and randomness of new energy resources, the output of new energy generator is uncertain, traditional power flow calculation cannot deal with this kind of uncertain power flow problem,...

The article documents a practical system and its procedure to estimate batteries' remaining energy storage capacities, which are determinants of batteries' economic values, in a bid to facilitate fair-price battery trading. Such trading is in strong demand given today's burgeoning electric vehicles of...