变频器在火力电站中的应用改造研究

发布时间：2018-05-31 10:12

本文选题：火力电站 + 变频器　；参考：《天津大学》2014年硕士论文

【摘要】：电能作为当今中国社会最为重要的也是处于支柱地位的二次能源，其需求量呈几何速度逐年增长。天津，作为全国四大直辖市之一，其用电需求亦是逐年攀升。我市电能的主要供给来自本市的六家大型火力电站，，作为天津市的六大主力现代化电站之一，天津国电津能热电有限公司年发电量达33亿千瓦时，其机组的经济稳定运行至关重要，直接关系社会经济和百姓民生。火力电站单元机组的经济、稳定、安全运行主要取决于重要辅助设备的能耗及可靠性。电子变频技术的发展，为解决火力电站重要辅助设备节能降耗及提升可靠性提供了一种高性价比、效果显著的手段。目前，基于电子变频技术研发出来的中、高压通用变频器已广泛用于火力电站的生产实际当中。本文基于对电子变频技术的研究和火力电站生产实际，提出应用变频器进行火力电站重要辅助设备的节能及可靠性改造的方法，并通过实验数据及工程实践对所提方法的应用效果进行了验证。本文主要工作： 1.从能效利用、运营成本及社会效益等方面，阐述了火力电站单元机组重要辅助设备节能降耗及提升可靠性的重要意义； 2.提出了变频器在火力电站单元机组重要辅助设备节能降耗方面的改造方法，并通过天津国电津能热电有限公司引风机调速系统变频改造加以验证。 3.提出了变频旁路系统在火力电站单元机组重要辅助设备可靠性提升方面的改造方法，并通过天津国电津能热电有限公司一次风机变频旁路改造加以验证。
[Abstract]:Electric energy is the most important and pillar two energy energy in today's Chinese society. Its demand is growing at a geometric speed year by year. As one of the four municipalities directly under the central government in Tianjin, its demand for electricity is also increasing year by year. The main supply of power in our city is from six large power stations in this city, which is the six main force of the city. One of the modern power stations, Tianjin Guodian Jinneng Thermal Power Co., Ltd. has a power generation capacity of 3 billion 300 million kwh, its unit's economic stability is crucial, directly related to the social economy and people's livelihood. The economic, stable and safe operation of the unit unit of the thermal power station mainly depends on the energy consumption and reliability of the important auxiliary equipment. In order to solve the problem of saving energy and reducing consumption and improving reliability of the important auxiliary equipment of thermal power station, it provides a high performance price ratio and significant effect. At present, high voltage general frequency converter has been widely used in the actual production of power plant based on the development of electronic frequency conversion technology.
Based on the research of electronic frequency conversion technology and the actual production of thermal power station, this paper puts forward the method of applying the frequency converter to the energy saving and reliability transformation of the important auxiliary equipment of the power station, and verifies the application effect of the proposed method through the experimental data and engineering practice.
1. from the aspects of energy efficiency utilization, operation cost and social benefit, the important significance of energy saving and reducing consumption and improving reliability of the important auxiliary equipment of thermal power plant unit is expounded.
2. the transformation method of the frequency converter in the energy saving and consumption reduction of the important auxiliary equipment of the thermal power plant unit is put forward, and it is verified by the frequency conversion transformation of the speed regulating system of the fan of Tianjin Guodian Jinneng thermal power CO generation company.
3. the transformation method of the variable frequency bypass system in the reliability promotion of the important auxiliary equipment of the thermal power plant unit is put forward, and it is verified by the transformation of the primary fan of Tianjin Guodian Jinneng Thermal Power Co., Ltd.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM621

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