农网低电压提升装置研究

发布时间：2018-05-20 08:07

本文选题：农网 + 低电压提升　；参考：《湖北工业大学》2016年硕士论文

【摘要】：随着中国农村地区经济的发展以及进城务工人员收入的增长带动了农村生产、生活、文化、娱乐要求的增长,同时带动了农村电能需求的增长,农村电网负担越来越重,部分地区的电压不达标影响农村生产和生活。本文来源于湖南省电科院农网改造项目,针对农村电网末端低电压问题,研究一种新型的农网低电压提升装置。相比于目前普遍采用的整体改造农网的电压改善方式,要求新型装置在节约成本的前提下,在基建预算不足的情况下,投资小、见效快,具有“四两拨千斤”的效果。本文根据LC串联电路特性,依照农村电网无功补偿规定,研究一种新型电压提升装置。本文重点研究装置在保证安全性以及可靠性的前提下,在农网末端由于线路损耗出现低电压的情况下能够自动进行电压调节使电压能稳定在规定范围内,同时装置可以对农网末端进行无功补偿提升农网末端电能质量,减小电能损耗,增加用电经济效益。本文通过对农网低电压实际情况的分析,提出了一种基于LC电路特性的电压提升装置的主电路。建立了电压提升的数学模型,通过代入实际情况模拟参数计算电压提升效果。以论证装置的理论效果为前提进行仿真模型的构建。搭建装置试验平台对装置的电压提升效果进行验证。在理论、仿真、实验结果都达到要求的前提下对装置进行工业设计并采购元器件进行样机制造。最后搭建样机试验平台,分析样机的电压提升效果。本文所研究的农网低电压提升装置,在经过多次的数学建模、仿真和平台试验后证明了该装置的可行性。装置采用较为成熟的电容器组投切控制器及触发模块,试验样机的性能以及可靠性基本满足项目要求。
[Abstract]:With the development of economy in rural areas of China and the increase of income of migrant workers in rural areas, the demand for rural production, life, culture and entertainment has increased, and at the same time, the demand for electricity in rural areas has increased, and the burden of rural power grids has become heavier and heavier. Voltage substandard in some areas affects rural production and life. In this paper, a new type of low voltage lifting device for rural power grid is studied in view of the low voltage problem at the end of rural power network. Compared with the voltage improvement mode commonly used at present, it is required that the new type of equipment should have the effect of "four and two thousand catties" under the premise of saving cost and under the condition of insufficient capital construction budget. According to the characteristics of LC series circuit and the regulation of reactive power compensation in rural power network, a new type of voltage hoisting device is studied in this paper. This paper focuses on the device under the premise of ensuring safety and reliability, in the end of the rural network because of the line loss of low voltage can automatically carry out voltage regulation, so that the voltage can be stabilized within a specified range. At the same time, the device can improve the power quality, reduce the loss of electric energy and increase the economic benefit of electric power by reactive power compensation at the end of rural power network. Based on the analysis of the actual situation of low voltage in rural power network, a main circuit of voltage hoisting device based on LC circuit characteristics is proposed in this paper. The mathematical model of voltage lifting is established, and the effect of voltage lifting is calculated by adding the actual simulation parameters. The simulation model is constructed on the premise of demonstrating the theoretical effect of the device. Build the device test platform to verify the voltage lifting effect of the device. In the theoretical, simulation, experimental results are up to the requirements of the industrial design of the device and the procurement of components for prototype manufacturing. Finally, the prototype test platform is built to analyze the voltage lifting effect of the prototype. After many mathematical modeling, simulation and platform test, the feasibility of the low voltage lifting device in rural power network has been proved in this paper. The device adopts a mature capacitor switch controller and trigger module, and the performance and reliability of the test prototype basically meet the requirements of the project.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM727.1

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