Abstract:Electric energy storage is the key enabler for improvement of the demand side energy management and integration of renewable energy into grid.This paper analyzes the development situation and the problems urgently needed to be solved in the field of physical energy storage technologies such as pumping energy storage, compressed air energy storage and flywheel energy storage.More importantly, a detailed discussion is made on the working principles, technical advantages as well as the applications and challenges of electrochemical energy storage technologies, including lithium ion battery, lead carbon battery, flow battery, sodium sulfur battery( ZEBRA battery) and liquid metal battery.This paper offers some references for the development of electric energy storage technologies.

Abstract:In order to realize peak shaving and reduce the cost of household electricity consumption, it is necessary to guide the household electricity load more reasonably.In this paper, according to the continuity and discontinuity of household electricity load and the relevance, order, strong dependence and other characteristics among household electricity load, in the background of time-of-use price, a smart household power consumption system model is built including the load model, the storage battery model and the economic optimization model.A method is presented to transform the optimization problem into a mixed integer linear programming problem by encoding of the decision variables model using 0-1 variables.The problem can be solved by Gurobi programming software, which greatly reduces the difficulty of solving the problem.In the Matlab environment, the simulation of the household electricity load data is carried out.The simulation result shows that the model and the optimization strategy can realize the transfer of household electricity load and reduce the cost of electricity.

Abstract:When DSM technology is porpularing, the development of the demonstration projects and the release of relevant demonstrative information can increase the users’ acquaintance for the technology and provide information to decide wheather to accept and participate in the technology.Firstly, individual power comsumer’s behavior was studied by herd behavior.Based on Bayes rule, the relationship between the individual followingup behavior and the demonstration information was explained.The consumers’ decision making process in accrodance with the demonstration information was simulated, and the relationship between investors’ following-up behaviors and the level of detail of the demonstration information was analyzed.Then aiming at user group, the influence of the content of demonstration information on the degree of following-up behavior was proposed, which was utilized to establish optimal release strategy of demonstration information to ensure the best response of the user group.At last, simulation results showed that the effect of demonstration information was indeed affected by its content, which proved that the model was correct and effective.

Abstract:With large-scale distributed energy integration, the frequency of the power system is more outstanding, and demand response can provide solutions to this problem.Based on the demand side for evaluating the feasibility of frequency modulation, frequency modulation method as a starting point, on the demand side response in system FM research were summarized.First of all, it may take part in the load characteristic of the system frequency， and types of demand response are analyzed, which provide an overview of different types of demand response frequency modulation control strategy and modeling method.The paper introduces the demand of the new energy access response FM capability assessment method, finally combining the development of electric power system in China, it puts forward the demand side of FM promotion proposal.

Abstract:Recently, with the growing PV capacity, analyzing its impacts on reliability of power grid accurately has practical significance.This paper puts forward a novel method for modeling the PV output, based on optimal segmentation and multidimensional clustering method, which can retention circadian and seasonal timing characteristics well.Firstly, according to the effective output time of PV in a day, using Fisher optimal segmentation algorithm, year simulation period gets optimal segmentation.Secondly, using multidimensional cluster method of fuzzy c-mean cluster algorithm, each period is analyzed.This method makes photovoltaic output modeling more refined, and preserves its local properties better.Applied in IEEE-RTS test system, the reliability analysis uses meas-ured PV output in Ningxia.The year simulation period is divided into five optimal periods, and at each period, the impact on power system reliability of PV is analyzed.The result shows the effectiveness of the method, and provides significant guidance on PV capacity planning.

Abstract:With a throughout study on Shanxi electricity customers’ electro-data and technologies relevant to big data, this passage innovatively puts forward to proceed energy efficiency monitoring analysis and evaluation through big data analysis, with the core of electro-data and integrating the information of industrial characteristics and electrovalence policy, so as to provide a service mode of energy efficiency analysis to customers.Improving energy consumption assessment ability and energy-saving analysis decision-making ability is of practical significance for reducing customers’ energy consumption, and of reference significance for reasonably controlling Shanxi’s total energy consumption and establishing a resource-conserving society.

Abstract:This paper starts with a brief comparative of various types of heat storage technologies, then analyzes the role of heat storage technology in DSM， mainly introduces the high temperature phase-change thermal storage technology and products.After that, a successful application of high temperature phase-change heat storage system in an enterprise in Jiangsu is also informed.By using this new technology, the enterprise in the off-peak hours made the heat storageand in the peak hours release the stored energy for manufacturing industrial steam.It has a good effect on reducing heating costs and improving power grid peak and off-peak time load user difference.

Abstract:This paper introduces the concept and the basic principle of the 3-D flow technique, including the production of the 3-D flow theory, the equation expression and the solution of the 3-D flow equation, based on the actual operating condition of the water pump.The water pump impeller is designed, the impeller of the water pump is analyzed, and the selection of the impeller material of the sea pump is compared to the parameters before and after the transformation.The saving power is significant.

Abstract:Automated demand response is one of the core technologies of smart grid.By analyzing the status of demand response in China，this paper proposes to deploy energy management system on the demand side, intermediate layer and the supply side.It will help to improve user terminal efficiency and management level, promote the interaction in load-network-source and realization of automated demand response.Then the key points of energy saving and control measures were determined by describing the function of energy management and automated demand response.Finally, this paper analyzes the main body of the participation, puts forward the specific process of implementation, and discusses the operation mode of the automated demand response under the new situation.

Abstract:According to the situation of the user equipment and the demand for electricity is not enough, it is difficult to carry out the analysis of the electrical behavior of equipment and put forward effective energy saving measures, and put forward an effective solution.Jiangsu power grid electricity first expands online monitoring coverage for the user online monitoring of enterprises, in-depth insight into the enterprise electricity saving potential analysis of user behavior, the enterprise foundation; secondly, according to the power analysis of customer consumption behavior, it pushes the customer to generate analysis report, recommended that users of electricity used to adjust.To promote energy-saving business enterprise development, and enhance customer service satisfaction; finally based on the data of internal operation of the equipment, users energy efficiency diagnosis analysis is carried out, to provide guidance and reduce costs.

Abstract:For the purpose of actively implementing the alternative energy development strategy “electricity replaces coal, fuel and comes from far away”, the marketing department of Suzhou Electric Power Supply Company outwardly promotes the government introducing policies relevant to alternative energy and inwardly perfects marketing system flow.It also further makes clear job responsibilities, standardizes the project management, makes work process clear, develops training and assessing, strengthens risk control and gradually achieves energy efficiency, alternative energy work and traditional marketing business such as business expansion and customer service, improving the lean degree and accuracy of professional management process along with winning the good response from customers and the market..

Abstract:In view of the present three-phase imbalance in urban and rural distribution network, the paper analyzed the present situation and the causes, compared the characteristics of the current main solution.This paper introduced the power quality comprehensive optimization principle and its application in the actual area of the device.

Abstract:This paper analyzed the main problems of urban electric vehicle charging infrastructure, introduced the concept of network construction and management process based on the process of the city fast charging station, put forward improvement direction of the network construction and management for urban electric cars quick charge station in order to provide the reference for the city electric vehicles charging infrastructure construction.

Abstract:In view of the traditional high voltage business expansion project access system scheme design, under the condition of the circuit load conditions allow, usually the method only putting the distance between power source and the electric point as the single reference standard is of limitation.The paper put forward the new method that is the construction funds and construction period as the constraint condition of a high voltage power supply business expansion project scheme optimization design method.The optimal power supply scheme is determined by considering the influence of daily profit value, line length and line type.

Abstract:To further standardize the customer manager system, provide customers with high quality, high efficiency, personalization and professional service actively, improve the work efficiency, improve customer satisfaction, mobile Internet technology is presented in this paper, combined with the electric power marketing business and data analysis technology, through a large number of customer base data and contact trajectory information extraction model.It described their social role, behavior preference, credit risk, underlying characteristics such as customer value, greatly enhanced the insight of the recessive to the customer demand, served for marketing and planning, implementation, evaluation and optimization provides guidance, improved the work initiative, differentiation, accuracy, as the powerful tools for improving electricity customer experience.It provided support for the company more competitive.

Abstract:From six aspects such as the real-time market construction, the secondary market, capacity market construction, market trends, market process, the energy market and transmission power market, America's electricity market reform experience is detailed analyed.In view of congestion management problems, the congestion revenue of the market is analyzed based on the analysis of the congestion charging of transmission lines and the absence of congestion charging.This paper introduces the main objectives of the regulation of electric power market in the United States.Finally, some experiences have been put forward in the process of power market reform.