智能变电站造价管理及合理性评价研究
发布时间：2018-12-12 08:04
【摘要】：近年来,随着全球气候变化及能源安全问题持续受到人类社会的重点关注,智能电网建设的重要性日益突出。智能变电站是建设坚强智能电网的重要环节,其投资建设资金也在电网总体投资中占据了较大比重。由于智能变电站在技术方案上与普通变电站有着显著差异,其造价管理也不同于普通变电站。提高智能变电站造价的管理水平、开展造价合理性评价,可以为合理布局智能变电站建设规模和建设时序提供决策支撑。本文针对智能变电站开展造价管理和合理性评价研究,为提高智能变电站造价管理水平,增强智能变电站造价科学合理性奠定基础。本文首先阐述国内外造价管理的研究现状,概述电网工程和变电工程造价的基本构成、特点和造价管理的内容;其次,介绍智能变电站的定义和特点,剖析智能变电站与普通变电站在技术和造价管理方面的异同点,研究智能变电站造价趋势,开展智能变电站全过程造价管理分析,总结现阶段存在的问题;接下来,在明确造价影响因素识别原则和方法的基础上,将智能变电站建设过程分为决策与可研阶段、设计与招标采购阶段、建设施工阶段和竣工决算阶段分别挖掘和识别影响智能变电站造价的因素;再其次,分别从造价形成合理性和造价管理合理性两个方面建立智能变电站造价合理性影响指标体系;接下来,建立基于AHP-云模型的智能变电站造价合理性评价模型,通过切比雪夫不等式确定合理性区间,消除异常数据对模型的影响,确定评语集和评价标准云,利用云发生器生成指标基本云,通过AHP方法计算各指标的权重并利用综合云合成算法计算得到最终的综合评价云,计算与标准云的相似度,得到造价合理性评价结论。最后,结合评价结论提出了未来智能变电站造价管理在方案标准化、物资集约化、定额及规范完善化等方面的建议。本文从智能变电站造价管理实际问题出发,提出了智能变电站造价管理合理性评价模型,有助于剖析智能变电站造价管理中存在的问题,可以有效促进降低企业投资成本和提高企业的经济效益,对智能变电站的发展和推广具有重要的实践意义。
[Abstract]:In recent years, with the global climate change and energy security issues continue to be the focus of human society, the importance of smart grid construction has become increasingly prominent. Smart substation is an important link in building a strong smart grid, and its investment and construction funds also occupy a large proportion in the overall investment of power grid. The cost management of intelligent substation is different from that of ordinary substation because of the obvious difference between intelligent substation and ordinary substation. Improving the management level of intelligent substation cost and carrying out reasonable cost evaluation can provide decision support for rational layout of intelligent substation construction scale and construction timing. In this paper, the research on cost management and rationality evaluation for intelligent substation is carried out, which lays a foundation for improving the cost management level of intelligent substation and strengthening the scientific rationality of intelligent substation cost. This paper first describes the research status of cost management at home and abroad, summarizes the basic structure, characteristics and content of cost management of power grid engineering and substation project. Secondly, it introduces the definition and characteristics of intelligent substation, analyzes the similarities and differences between intelligent substation and ordinary substation in technology and cost management, studies the cost trend of intelligent substation, and carries out the cost management analysis of the whole process of intelligent substation. Summing up the existing problems at the present stage; Then, on the basis of defining the principles and methods of identifying the factors affecting the cost, the construction process of intelligent substation is divided into decision-making and research stage, design and procurement stage. The factors that affect the cost of intelligent substation are excavated and identified in construction stage and final accounting stage respectively. Secondly, from the cost formation rationality and the cost management rationality, the paper establishes the intelligent substation cost rationality impact index system. Then, a reasonable evaluation model of intelligent substation cost based on AHP- cloud model is established. The interval of rationality is determined by Chebyshev inequality, the influence of abnormal data on the model is eliminated, and the evaluation set and evaluation standard cloud are determined. The index basic cloud is generated by the cloud generator, the weight of each index is calculated by AHP method, and the final comprehensive evaluation cloud is calculated by using the synthesis cloud synthesis algorithm. The similarity between the index cloud and the standard cloud is calculated, and the conclusion of cost rationality evaluation is obtained. Finally, based on the evaluation conclusions, the paper puts forward some suggestions for the future intelligent substation cost management in the aspects of project standardization, material intensification, quota and standardization perfection, and so on. Based on the practical problems of intelligent substation cost management, this paper puts forward a reasonable evaluation model of intelligent substation cost management, which is helpful to analyze the existing problems in intelligent substation cost management. It can effectively promote the reduction of investment cost and increase the economic benefit of enterprises. It is of great practical significance for the development and promotion of intelligent substation.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU723.3;TM63
本文编号：2374231
[Abstract]:In recent years, with the global climate change and energy security issues continue to be the focus of human society, the importance of smart grid construction has become increasingly prominent. Smart substation is an important link in building a strong smart grid, and its investment and construction funds also occupy a large proportion in the overall investment of power grid. The cost management of intelligent substation is different from that of ordinary substation because of the obvious difference between intelligent substation and ordinary substation. Improving the management level of intelligent substation cost and carrying out reasonable cost evaluation can provide decision support for rational layout of intelligent substation construction scale and construction timing. In this paper, the research on cost management and rationality evaluation for intelligent substation is carried out, which lays a foundation for improving the cost management level of intelligent substation and strengthening the scientific rationality of intelligent substation cost. This paper first describes the research status of cost management at home and abroad, summarizes the basic structure, characteristics and content of cost management of power grid engineering and substation project. Secondly, it introduces the definition and characteristics of intelligent substation, analyzes the similarities and differences between intelligent substation and ordinary substation in technology and cost management, studies the cost trend of intelligent substation, and carries out the cost management analysis of the whole process of intelligent substation. Summing up the existing problems at the present stage; Then, on the basis of defining the principles and methods of identifying the factors affecting the cost, the construction process of intelligent substation is divided into decision-making and research stage, design and procurement stage. The factors that affect the cost of intelligent substation are excavated and identified in construction stage and final accounting stage respectively. Secondly, from the cost formation rationality and the cost management rationality, the paper establishes the intelligent substation cost rationality impact index system. Then, a reasonable evaluation model of intelligent substation cost based on AHP- cloud model is established. The interval of rationality is determined by Chebyshev inequality, the influence of abnormal data on the model is eliminated, and the evaluation set and evaluation standard cloud are determined. The index basic cloud is generated by the cloud generator, the weight of each index is calculated by AHP method, and the final comprehensive evaluation cloud is calculated by using the synthesis cloud synthesis algorithm. The similarity between the index cloud and the standard cloud is calculated, and the conclusion of cost rationality evaluation is obtained. Finally, based on the evaluation conclusions, the paper puts forward some suggestions for the future intelligent substation cost management in the aspects of project standardization, material intensification, quota and standardization perfection, and so on. Based on the practical problems of intelligent substation cost management, this paper puts forward a reasonable evaluation model of intelligent substation cost management, which is helpful to analyze the existing problems in intelligent substation cost management. It can effectively promote the reduction of investment cost and increase the economic benefit of enterprises. It is of great practical significance for the development and promotion of intelligent substation.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU723.3;TM63
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