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The Analysis on the Feasibility of Intelligent Substation in Hengqin Island

Author: YangHaiYing
Tutor: ZhangBo;LiTao
School: South China University of Technology
Course: Electrical Engineering
Keywords: Smart grid Intelligent substation IEC61850 Digital substation Engineering application
Type: Master's thesis
Year: 2011
Downloads: 164
Quote: 0
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Intelligent substation is one of the six basic elements of intelligent grid as well as the most critical one. It collects grid basic operating data and executes assigned commands. With qualities of digitization of information, networking of communication platform, and standardization of information-sharing, it automatically performs functions of information collection, measurement, control, protection, metering and monitoring. In addition, it achieves full interactions among facility information, operating strategy and power dispatching, completes integrated management of state-based entire life cycle, timely collects and shares grid operating data, and conducts real-time control, intelligent regulation and a variety of advanced applications, assuring a safe and stable operation of power grid.The present paper focuses on functions and traits of intelligent substations, makes comparisons on performances between intelligent substations and digital substations, and presents a basic state on Hengqin Island Intelligent Substation. Modeling on the design of Qinyun Substation, the paper proposes a design program after conducting detailed analysis on system parameters, main electrical connections, calculation of short circuit current, and main facilities options, together with a standardized design of system architecture, post-safe measures, online monitoring, and telemechanical sections of Qinyun Substation. In accordance with current situation of intelligent substation project research and construction, construction requirements of 3C Green Grid for 220kV Qinyun Substation, and the IEC61850 standard, an intelligent management system and a new energy application plan have been worked out on the three-layer-two-network concept. In conformity with construction conditions of domestic intelligent substations, the engineering application program has also been proposed. With Qinyun Substation as the example, the paper has summarized experiences that may contribute to subsequent projects, and expounded on intelligent substations’engineering design, construction traits, as well as later maintenance and performance that differ from conventional substations. Based on the design, analyses, and facility allocation of 220kV Qinyun Substation, the feasible construction of Hengqin Island Intelligent Substation has been confirmed in the paper.

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