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Research on Key Techniques in Digital Power Grid

Author: TangYueZhong
Tutor: HanZuoXiang;CaoYiJia
School: Zhejiang University
Course: Electrical Engineering
Keywords: Digital grid Information Integration Data Modeling Information Security Mobile Agent (MA) Service-oriented architecture (SOA) CIM model
CLC: TM76
Type: PhD thesis
Year: 2010
Downloads: 1621
Quote: 8
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Abstract


In recent years, due to global warming and international consecutive major power outage, causing the people to network security and new energy development and application of high concern. For the current grid in resisting the risk of vulnerability, new energy access and application limitations, the world's electricity research institutions and larger companies have launched a new generation of grid research, have proposed the \smart grid, \China's electricity experts proposed the construction of digital grid, recently proposed a unified strong smart grid concept. This article describes the digital grid research status and basic concepts that build digital grid is the key technology architecture design, information modeling, information integration, and security protection, etc.; proposed digital grid layered architecture and building digital grid unification information model approach; designed a digital grid data integration platform, application integration platform and longitudinal data network communication structure and information security protection program. Introduced the Shanghai Municipal Electric Power Company practical application. Full-text content includes the following chapters: The first chapter analyzes the power system current challenges, introduces the smart grid of the basic definitions and its objectives and functions. Analysis of the digital grid and smart grid relations, pointing out the smart grid is a series of related technology in general, rather than a widely accepted norms of a particular term. That the digital grid is both smart grid technology system is an important part, but also the grid development stage. In introducing the current research status, based on the analysis of the construction of digital grid of several key technologies. The second chapter elaborates digital grid concept and connotation to the flow of information-oriented, made digital grid layered architecture. According digital grid of the entire information flow, bottom of the digitized grid logically divided into the device layer, transport layer, data layer, application layer and the presentation layer. Device layer to develop intelligent equipment for the main features of the data layer to the data center and data integration technology, analytical applications layer to application integration technology, to support intelligent scheduling and decision support as the main advantage. This chapter presents the digital grid architecture is based on common standards for the design, systematic and openness. Chapter III of the information modeling theory into digital grid, the design of digital grid panoramic models. In IEC61970/968 CIM is proposed based on the grid-related information for unified modeling approach. The most representative of the transformer asset model-building process and asset management business processes build process, for example, analyzed the digital grid of data modeling and business process modeling. Presented to the CIM model to expand the principles and techniques, the establishment of a digital grid unified information model for information integration foundation. Chapter IV from information integration level of the angle of the digital grid information integration inherent laws proposed digital grid data integration and application integration solutions. Data integration solutions based on a unified information model, using the information bus technology, mainly to support data information horizontal integration, which can effectively solve the digital grid information island. Application integration solutions based on service-oriented architecture (SOA) and Enterprise Service Bus technology to solve the digital grid, real-time monitoring system and the production, marketing and other business management systems integration issues. The program has an open and flexible, and can all-round solution to digitize information on grid integration issues. Chapter 5, based on mobile agent (Mobile Agent, MA) technology digital grid longitudinal information interconnected functional requirements and technical strategy. Comparing longitudinal Internet communications gateway three communication modes proposed a MA-based digital grid vertical information network platform (DPG-VIP) model and its architecture was studied. Designed to interconnect systems and demand access to the system interface mode and API interfaces. DPG-VIP platform is digital grid panoramic considerable controllable important foundation. Chapter VI combines digital grid system of organization to analyze the information security issues and risks, summed up the digital grid in controlling security, information security and application security aspects of the three major demands. Proposed a secure partition isolation and role-based access control based information security system. Based on business continuity design principles, analyzes the digital grid business continuity requirements, design a disaster recovery system of the overall program. Looking a digital grid security protection system overall structure, key technology trends. Chapter VII describes the digital grid in Shanghai Electric Power Company's engineering practice. Design and development of the Shanghai Municipal Electric Power digital grid comprehensive data platform (SP-IDP). The platform uses a unified information model that integrates scheduling, production, marketing and other basic business data, supporting compliance CIM / CIS standards for various types of data services and decision support. Analysis of the Shanghai company's typical application integration needs, and built a SOA-based architecture application integration platform that enables production management, electricity, marketing and customer service and other core applications integration between established agile cross-system business processes. Design deployed to achieve the Shanghai Municipal Electric Power Company information security defense system.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation
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