考虑油机负荷特性的油田电网可靠性分析

发布时间：2018-12-15 05:08

【摘要】：石油是重要的一次能源,对国民经济的发展有举足轻重的作用。而石油的采集和输出离不开电力的支持,油田电网作为提供油田电力的基础设施,其可靠性是油企重点关注的指标。因此,针对油田电网特点,分析油田电网的供电可靠性,并寻求进一步提高油田电网可靠性的措施是非常有意义的工作。本文在常规油田电网可靠性分析的基础上,重点针对油田电网的主要负荷——抽油机特性进行分析,试图找到更有针对性的电网可靠性提高措施。首先,从周期性、不确定性和同时性三个方面对抽油机的负荷特性进行了深入分析。然后,使用解析法计算出油田电网的可靠性指标,并分析了线路故障率、线路修复时间、断路器故障率、断路器修复时间及T接对电网可靠性的影响。针对抽油机负荷的同时率问题,计算出抽油机在不同同时率下电网的可靠性指标。最后,根据上述研究,从调整电网结构和调节抽油机同时率的角度,以国内某油田电网为算例,提出了七种提高电网可靠性水平的措施,并计算了各项措施的可靠性指标。
[Abstract]:Petroleum is an important primary energy, which plays an important role in the development of national economy. The oil acquisition and output can not be separated from the support of electric power. As the infrastructure to provide oil field power, the reliability of oil grid is the key index of oil enterprises. Therefore, it is of great significance to analyze the power supply reliability of oil field power grid and to seek further measures to improve the reliability of oil field power grid according to the characteristics of oil field grid. Based on the reliability analysis of conventional oilfield power network, this paper focuses on the analysis of the main load-pumping unit characteristics of the oil field power network, and tries to find more targeted measures to improve the power grid reliability. Firstly, the load characteristics of pumping units are analyzed from three aspects: periodicity, uncertainty and synchronism. Then, the reliability index of oilfield power network is calculated by analytic method, and the influence of line failure rate, line repair time, circuit breaker failure rate, circuit breaker repair time and T connection on power network reliability is analyzed. Aiming at the simultaneous rate of pumping unit load, the reliability index of pumping unit under different synchronous rate is calculated. Finally, according to the above research, from the angle of adjusting the power grid structure and regulating the simultaneous rate of pumping units, taking a domestic oil field grid as an example, seven measures to improve the reliability level of the power grid are put forward, and the reliability indexes of each measure are calculated.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM732

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