Automation of electric power systems
State Grid Electric Power Research Institute Co., Ltd.
About: Automation of electric power systems is an academic journal. The journal publishes majorly in the area(s): Electric power system & Fault (power engineering). It has an ISSN identifier of 1000-1026. Over the lifetime, 4048 publications have been published receiving 23109 citations.
Papers published on a yearly basis
TL;DR: In this paper, the influence of distributed generation and micro-grid on the smart distribution system is analyzed from the point of view of large-scale access of distributed energy resources, and suggestions about the idea and technical means are given for implementing the Smart Distribution System.
Abstract: The basic concepts and development trend of distributed generation(DG),the micro-grid and smart distribution system are described.In particular,the influence of DG and micro-grid on the smart distribution system is analyzed from the point of view of the large-scale access of distributed energy resources.DG supplies users with green power from various locally available renewable energy resources,but large-scale interconnected operation of DG in the distribution system may give rise to security and operation problems.Micro-grid technology provides an interface to the interconnection of various DGs by means of structures at different levels,which is the most efficient way for the operation of DG.On the other hand,the smart distribution system makes it possible to realize flexible access to DG and safe,reliable,and optimal operation of the entire power system by effectively managing the micro-grids.Based on an analysis of the relationship between the three,suggestions about the idea and technical means are given for implementing the smart distribution system.
TL;DR: In this paper, a transition from DG to microgrid is presented and a typical topological structure of micro-grid is employed to demonstrate its unique characteristics, and the key topics and ongoing research and development programs are also listed and analyzed.
Abstract: As an effective way to solve various problems in modern power systems,microgrid is increasingly adopted in many developed countries.Via detailing the concept and schemes of microgrid worldwide,the paper aims to clarify the differences and similarities between microgrid and distributed generation(DG),and give some advices on its application in China.Firstly,the transition from DG to microgrid is presented and a typical topological structure of microgrid is employed to demonstrate its unique characteristics.Secondly,researches and developments on microgrid in various countries are summarized.The key topics and ongoing research and development programs are also listed and analyzed.Finally,based on the energy strategies and status of power systems in China,the developing potentials and the possible applications of microgrid in China are discussed.
TL;DR: In this article, the authors focused on the vital theory of planning and optimal operation of integrated energy system (IES), and six fundamental problems in the study of IES are proposed systematically.
Abstract: Integrated energy system(IES)has become an important strategic research direction in international energy field for its great significance in improving the energy efficiency,the utilization efficiency of social infrastructure and the energy supply security,as well as promoting the large-scale development of renewable energy and achieving energy conservation and emissions reduction in China.Research on IES technology is in conformity with the major national strategic needs of China.Focusing on the vital theory of planning and optimal operation of IES,six fundamental problems in the study of IES are proposed systematically,including the common modeling technology for IES,the integrated simulation of IES,the planning theory and method of IES,the security theory and method of IES,optimal operation and control of IES,benefit assessment and operational mechanisms of IES,and the status of domestic and foreign research directions involved in the scientific problems are surveyed and projected.
TL;DR: In this paper, the authors proposed the charging modes and charging time of different kinds of plug-in electric vehicles' charging behaviors in China according to the field survey and applied the Monte Carlo simulation method to determine the starting state of charge (SOC) and the initial charging point.
Abstract: The policy and the development of plug-in electric vehicles(PEVs) in China are analyzed firstThen the charging modes and charging time of different kinds of PEVs' charging behaviors in China are proposed according to the field surveyThe charging periods of different kinds of PEVs' charging behaviors are dividedThe Monte Carlo simulation method is applied to determine the starting state of charge(SOC) and the initial charging pointWith the charging methods(either on slow,regular,or fast mode) and initial charging point,together with the sampled starting SOC and charging needs of different PEVs' charging behaviors,the charging time can be calculated to get the charging curveBased on the study,the future charging load in China is forecastedThe results indicate that the charging of PEVs will have significant impacts on the planning and operation of the power systemThe huge difference between charging peak and off-peak provides a substantial potential to coordinate the charging of PEVs
TL;DR: Several important research problems associated with the CPPS, including the theoretical foundation, system modelling, simulation algorithms, security assessment, reliability assessment, system design and planning as well as system operation, and the standardization are presented.
Abstract: To implement the objective of smart grids, it is essential to introduce the state of the art computing, communication and sensing technologies, and seamlessly integrate them with the power system. The cyber physical system (CPS) is an emerging but highly important research area concerning the deep integration of physical and information systems. In this work, based on the concept of the CPS and taking into account the characteristics of power systems, the cyber physical power system (CPPS) is proposed. The concept, main functionalities and technical characteristics of the CPS are first introduced. The architecture and major components of the CPPS are then illustrated. Next, some important techniques for developing the CPPS are clarified. Finally, several important research problems associated with the CPPS, including the theoretical foundation, system modelling, simulation algorithms, security assessment, reliability assessment, system design and planning as well as system operation, and the standardization of CPPS, are presented.
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