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Reform Design for Computer Monitoring System of Lijiaxia Hydropower Station

Author: XinLong
Tutor: YaoLiXiaoï¼›YuanXiangDong
School: Xi'an University of Technology
Course: Electrical Engineering
Keywords: Computer Monitoring System Hardware configuration Software features AGC AVC Sequence control
CLC: TV736
Type: Master's thesis
Year: 2008
Downloads: 38
Quote: 0
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Abstract


With the rapid growth of China's national economy, the society for energy, especially electricity demand is also a corresponding increase, which also promoted the rapid development of the power industry. Electricity energy production, transport, sales highlights several characteristics: First, the total capacity of the power grid; power distribution more reasonable, more and more horizontal linkages of the regional gateway, electricity transmission lines longer; is composed of a grid of electrical energy production is more diverse, including hydropower, thermal power, nuclear power generation, wind power, solar power, tidal power and other diverse generation; diversified power users of the electricity sector for electricity reliability, stability and power quality put forward higher requirements. These factors, and the production of conventional power system control means with the original management methods have been unable to meet the needs of modern industrial development. Especially hydropower due to the characteristics of its production process and expanding the scale of modern hydropower improve hydropower station automation level becomes very necessary. Lijiaxia Hydropower Station is the main stream of the Yellow River has built the largest installed capacity of hydropower Hydropower, Northwest power grid frequency regulation power plants, power station computer monitoring system has been running for eleven years, currently facing antiquated system, the software can not run on high-performance computing platforms is currently control unit LCU PLC module spare parts can not be an effective complement to, user maintenance system is more complex, the need to master the UNIX operating system, system host and now IPC failure frequently lead to the unit is unable to properly run a series of questions, has affected the safe and stable operation of the power plant production. This article by analysis and comparison of today's domestic and international hydropower station computer monitoring system development status, the problem of the Lijiaxia station computer monitoring system status and the presence of in-depth analysis, the study identified the the Lijiaxia hydroelectric power system rehabilitation programs, reasonable choice of the power station computer monitoring system transformation of the overall structure, and to draw the network block diagram of the system after the transformation, the selection and arrangement of the function of the system software and hardware equipment. Papers on the basis of analysis of the hydropower station monitoring software requirements, Lijiaxia Power Station Monitoring System software features a detailed design of the basic structure of the monitoring software processes and the main function of the interface, and automatic generation control (AGC) and automatic voltage control (AVC) advanced features software; through the conversion of plant conditions, procedural steps and logic conditions discriminant analysis and research the crew program control flow diagram, which provided the basis for the unit automatically control programming .

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CLC: > Industrial Technology > Hydraulic Engineering > Hydropower utilization of hydropower project > Hydropower station construction and equipment > Automation, and much automation
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