Electric Power Information System Research Articles

Safety Index, Evaluation Model, and Comprehensive Evaluation Method of Power Information System under Classified Protection 2.0

Aiming at the problems of the low integration of the current power information system security assessment method with classified protection 2.0, strong subjectivity, and the vague quantification of objective indexes, this article proposes to establish a safety index system suitable for the electric power information system with the existing safety inspection standards for power systems on the basis of the classified protection 2.0 evaluation system. Additionally, it quantifies each index through a quantitative method combining subjective and objective methods and uses the analytic hierarchy process entropy method to obtain the combined weight of the evaluation index system. Finally, this paper summarizes the expert scores and the graded protection evaluation reports of the six systems into the original data for comprehensive weight calculation and analyzes the rationality of the weight change. The comparison and analysis of the closeness of the TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution) and the evaluation score of the equal guarantee have confirmed the scientificity and rationality of the evaluation model. It provides a reasonable logical idea for the implementation of the classified protection 2.0 system in the power information system.

Design and Research of New Energy Technology in Electric Power Information Intelligent System

After the Industrial Revolution, with the continuous improvement of people’s living standards and the great changes in science and technology, the traditional energy has been unable to meet people’s new needs of production and life and the concept of sustainable development. As a hot topic in recent years, new energy can become one of the new ways to promote the continuation of resources. The traces of the rapid development of new energy can be found in various fields related to people’s lives. Electric power information system is one of the aspects. It is well known that human beings can not live or work without electricity. Therefore, it is very important to apply new energy technology in electric power information system. This study studies from the overview of new energy technology, the overview of power information intelligent system and the application of new energy technology in power information intelligent system.

A Multimodality Information Synchronization Scheme for a Multisource Information System in the Electric Grid

A multisource and heterogeneous database is an important problem that disturbs the use of the electric power information system. The existing database synchronization scheme has some problems in practical applications, such as high resource loss and poor portability. This paper presents a high-efficiency database synchronization scheme for the electric power information system. The database is monitored, and its changes are captured by the shadow table and trigger method. Thus, data could be exchanged in trusted networks and nontrusted networks. In addition, a predetermined strategy is used to avoid data conflicts and ensure consistency and reliability of data synchronization. The above method is applied in the protection system of power networks. The results show that the synchronization scheme can effectively ensure the security of the system and has higher synchronization efficiency.

Research on Network Threat and Situation Assessment Method of Electric Power Information System

With the rapid development of information and communication technology, the national electric power information system has been extensively developed, and the electric power information system is becoming more and more intelligent, complicated and networked. At the same time, the complexity of the power information system has also brought about the problem of network security, and various network threats have put forward higher requirements for the network security of the power information system. How to evaluate the cyber threat of power information system has become an important work of power information system network security. This article uses the network threat attribute indicators that the power information system faces, and combines the situation assessment method to conduct a situation assessment on the network security of the power information system.

Research on health assessment of electric power information system based on deep belief networks and cluster analysis

It has been a hot issue for a long time to effectively ensure the safe and stable operation of the power service information system and make a reasonable evaluation of the healthy operation of the power service information system. Without relying too much on the subjective experience and scoring of experts, this paper introduces a health assessment method based on deep belief networks and cluster analysis for the power service information system. Firstly, cluster analysis is used to obtain corresponding cluster centers and evaluation index sets based on the selected evaluation indexes of the information system. Secondly, the entropy weight method is adopted to score different clustering categories and obtain the corresponding health evaluation categories. Finally, based on the score of the healthy operation, the samples are supervised and trained by the deep belief network model, and then the objective comprehensive evaluation of the system is completed. Experiment results show that this model is more accurate than traditional SVM, KNN, random forest and LSTM. The proposed model has theoretical significance and practical value for the healthy operation evaluation of the power service information system.

An anomaly detection method for electric power information system based on improved k-means

An anomaly detection method for electric power information system based on improved k-means

Knowledge-Based Defect Prevention Research for Electric Power Information System

Removed at authors request.

Typical Defects Sample Selection Methods Research for Electric Power Information System

The existing sample selection methods are inadequate in the determination of defect sample set, and lacking necessary metrics or evaluation methods of the defect sample set. This paper determines the typical defect sample set according to the selecting principles and proposes a metrics method of defect sample set to measure whether the defect sample set is representative of the defect library. At present, defect sample selection mainly depends on brainstorming and expert experiences in the electric system. However, for those organizations which have no experiences orfor large databases, there are significant difficulties on sample selection. The proposed defect sample selection framework and measurement criteria can effectively improve the situation and ensure that the selected sample set can well represent the defect library.

Role-Based Services Certification Model of State Grid Unified Application Platform

With analyzing the cause and characteristics of security problems in the current power State Grid Unified Application Platform, this paper proposes a Role-Based Services Certification Model, RBSCM, to solve the security problems in electric power information system and designs a generalized and effective mechanism of security management. The paper provides a set of constraint specifications. These constraint specifications of RBSCM are organized to form a construction, and an enact process is proposed to make it scalable and flexible to meet the need of diversified service application systems.

Research on Efficiency Evaluation Model of Electric Power Information System

he information technology has greatly driven the development of Smart Grid, however, the risk of system operation has been significantly increased simultaneously with improving the intelligent operation level of Grid system, therefore, how to construct an efficiency evaluation model of electric power information system effectively has been becoming an important subject to be explored for many experts. And based on that, this paper presents an efficiency evaluation model of electric power information system in view of the adjacency matrix. Firstly, the attack process is divided into two stages from the perspective of an attacker, namely, selecting to attack the access points and attacking other access points; secondly, it describes the intelligent selection capability of the attacker by using the transfer probability index between the nodes; finally, it conducts the computational analysis by introducing an example, to prove the practical applications of the proposed methods.

Application of Service Flow Technology Based on IEC 61970/61968 to Electric Power Information System

This paper presents the service flow technology based on IEC 61970/61968, and expounds the definition of the service flow and matching method. Service flow technology can support the SOA framework to meet the increasing demand of fusion to electric power information system. An actual service flow case is applied in power information system, the results show that this technology can make better use of IEC 61970/61968 interface, which provide technical methods for the interaction and expansion between information systems.

Research and Construction of Information Security Simulation Test Bed for Electric Power System

Electric power system relies heavily on common information technologies and platforms, so all common information security issues have been experienced in the electric power information system. Because of attacks destructivity and uncontrollability, it is inappropriate to conduct security analysis in a real Power system directly. Therefore, the paper uses simulation and emulation technology to build a information security test bed for power system at a lower cost and no affect the normal operation and the premise of the aimed system. Simulation contents in the test bed are arranged in four different layers including firmware layer, system layer, network layer and application layer. The test bed also provides a network attack and defense combat system. The test bed can be used for Power system information and network system security testing, engineering validation and evaluation.

Research and Design of the Security Area Classification Model of Electric Power Information System

Because of the special position of electric power industry in national economy and social life, electric power information security has been given particular attention. In recent years, the security defense of Electric Power Information System has been all under the principle of security area classification, which applies different security defense measures for the information systems in different security level. However, because of lacking theory guidance, the recent method of security area classification is not in accord with the requirements of real production and management, and security threaten occurs at times. In order to meet the requirements of real production and management and the needs of security area classification defense in Electric Power Information System, based on the theory of network business security, a new security area classification model of Electric Power Information System has been proposed, and the access rules of the information transmission and sharing between different security areas have also been proposed. The new security area classification model can provide theoretical basis for security area classification in Electric Power Information System, and can deal with the conflict between the requirements of real production and the needs of information security.

Grey Evaluation Method on Security Risk Assessment of Power Information System

As information technology is widely used in electric power field, security risks penetrate into all aspects of electricity production and operation, meanwhile, complexity of electric power information system make it's very difficult to guard against security risk. Information security risk assessment is the foundation and the precondition of information system security. In this paper, combining long-term power information security supervision practice, we give a multi - hierarchy and multi - attribute index system of information security risk evaluation, and point out these indexes are characterized with grey, fuzzy and difficult to quantify. Then, the analytic hierarchy process (AHP) and the theory of grey system are introduced in setting up a comprehensive evaluation model, we obtain the final score using the information fusion of different experts. Additionally, an application example is used to illustrate the availability of the proposed evaluation method. The result shows that grey evaluation which combines advantages of the qualitative and quantitative methods can be applied to risk evaluate of information system more accurately and scientifically. Meanwhile the evaluation results can help supervisors judge which is the necessity to improve.

Prepayment for electric service with the PowerStat

The PowerStat is an electric power information and control system designed to reduce electric costs to the consumer. The system eliminates conventional meter reading and billing schedules and allows the consumer to pay for his electricity at any time and on any regular or random schedule desired. The PowerStat is owned by the utility company and installed in each residence or place of business to provide the consumer with a continuous display of his electric power status. It also shows the amount of electricity available and alerts the consumer when it is time to buy additional power. Testing and evaluation have been underway since February, 1986. Consumer response has been excellent, and early results indicate some reduction in power costs. >