基于双储能元件的钻机制动能量回收应用研究
发布时间：2018-11-22 07:37
【摘要】：石油钻井行业是一个工况复杂、高能耗的行业,石油钻机工作过程中产生的再生制动能量和公共直流母线的冗余能量目前不能有效回收利用,当前这部分能量主要是接通到制动电阻,通过热能的方式损耗。经试验发现,如果将电动机制动过程中产生的电能收集到储能控制系统中,并将储能控制系统与钻机的主动力回路相连,该系统能够抑制电能的波动、提高电能质量。同时钻机在起下钻过程中,由于接钻具、卸钻具等钻井作业时,存在必要的中断时间,导致这些时段发电机处于轻负载状态造成燃油的浪费,导致这部分能量不能有效利用,如何将这部分能量收集起来并作为钻机作业能量的有效补充,也是目前储能的一个研究目标。本文首先在介绍了当前钻机能量损失及无法回收的原因,及双储能控制系统的研究现状。在分析石油钻机电气结构和作业工况的基础上,分工况介绍通用的能耗制动设备使用情况,然后对双储能控制系统的储能单元和DC/DC模块进行介绍和选型;再分析钻机需要收集和释放的能量信息,包含制动过程中产生的能量、某油田用户对钻机具体需求、钻机冗余能量产生原因的基础上,双储能控制系统策的储能元件容量进行选型计算,然后对储能系统的控制策略、硬件和软件设计进行介绍,完成对整个双储能控制系统的设计工作。然后该系统在油田某钻机上进行充电和放电的实地验证,结果表明这种双储能控制系统可行,控制策略有效.应用后钻机相关设备的频率和电压波形趋稳,满足作业工况下电网电能质量的要求,减少了机器使用成本,保护了环境。
[Abstract]:The petroleum drilling industry is an industry with complex working conditions and high energy consumption. At present, the regenerative braking energy generated by the oil drilling rig and the redundant energy of the common DC bus can not be effectively recycled. At present, this part of the energy is mainly connected to the brake resistance, through the way of heat loss. It is found by experiments that if the electric energy generated in the motor braking process is collected into the energy storage control system and the energy storage control system is connected with the main power loop of the drilling rig, the system can restrain the fluctuation of the electric energy and improve the power quality. At the same time, during the drilling process of drilling rig, due to the existence of necessary interruption time in drilling operations, such as connecting drilling tools and unloading drilling tools, the generator in these periods is in a light load state, resulting in the waste of fuel oil, and this part of energy cannot be effectively utilized. How to collect this part of energy as an effective supplement of drilling rig operation energy is also a research goal of energy storage at present. This paper first introduces the reason of energy loss and unrecoverable of drilling rig, and the research status of dual energy storage control system. Based on the analysis of the electric structure and the working conditions of the oil drilling rig, the use of the general energy consumption braking equipment is introduced. Then, the energy storage unit and the DC/DC module of the dual energy storage control system are introduced and selected. On the basis of analyzing the energy information needed to be collected and released by drilling rig, including the energy generated in the braking process, the specific demand of a certain oil field user for drilling rig, and the reasons for the production of redundant energy of drilling rig, The capacity of the energy storage components of the dual energy storage control system is selected and calculated. Then the control strategy, hardware and software design of the energy storage system are introduced, and the design of the dual energy storage control system is completed. Then the system is verified by charging and discharging on a drilling rig in oil field. The results show that the dual energy storage control system is feasible and the control strategy is effective. After application, the frequency and voltage waveform of the related equipment of drilling rig tend to stabilize, which can meet the requirements of power quality of power network under operation conditions, reduce the cost of machine use and protect the environment.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE922
本文编号：2348531
[Abstract]:The petroleum drilling industry is an industry with complex working conditions and high energy consumption. At present, the regenerative braking energy generated by the oil drilling rig and the redundant energy of the common DC bus can not be effectively recycled. At present, this part of the energy is mainly connected to the brake resistance, through the way of heat loss. It is found by experiments that if the electric energy generated in the motor braking process is collected into the energy storage control system and the energy storage control system is connected with the main power loop of the drilling rig, the system can restrain the fluctuation of the electric energy and improve the power quality. At the same time, during the drilling process of drilling rig, due to the existence of necessary interruption time in drilling operations, such as connecting drilling tools and unloading drilling tools, the generator in these periods is in a light load state, resulting in the waste of fuel oil, and this part of energy cannot be effectively utilized. How to collect this part of energy as an effective supplement of drilling rig operation energy is also a research goal of energy storage at present. This paper first introduces the reason of energy loss and unrecoverable of drilling rig, and the research status of dual energy storage control system. Based on the analysis of the electric structure and the working conditions of the oil drilling rig, the use of the general energy consumption braking equipment is introduced. Then, the energy storage unit and the DC/DC module of the dual energy storage control system are introduced and selected. On the basis of analyzing the energy information needed to be collected and released by drilling rig, including the energy generated in the braking process, the specific demand of a certain oil field user for drilling rig, and the reasons for the production of redundant energy of drilling rig, The capacity of the energy storage components of the dual energy storage control system is selected and calculated. Then the control strategy, hardware and software design of the energy storage system are introduced, and the design of the dual energy storage control system is completed. Then the system is verified by charging and discharging on a drilling rig in oil field. The results show that the dual energy storage control system is feasible and the control strategy is effective. After application, the frequency and voltage waveform of the related equipment of drilling rig tend to stabilize, which can meet the requirements of power quality of power network under operation conditions, reduce the cost of machine use and protect the environment.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE922
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