基于移动变电站的旁路不停电检修技术应用与研究

发布时间：2019-04-29 20:51

【摘要】：随着经济和城市的发展,城市电网改造需求和用户不间断供电需求、重大活动保电需求相矛盾,传统停电检修方式瓶颈凸显,移动变电站作为智能电网的延伸,在电网升级改造、设备突发故障、高负荷季节,基于其可移动性和快速性可高效保障城市电网安全运作。本文作者基于银川供电公司110k V的车载移动式变电站,介绍了车载移动式变电站高压组合电器H-GIS、20MVA车载移动式变压器、中低压充气开关柜、监控与保护系统、一体化电源系统及运输车载系统等组成。分析了移动变电站的应用类型和选型,对移动变电站的特殊设计如车辆、限高、限宽、限重进行了阐述,重点研究并提出了基于移动变电站的旁路不停电技术及替换式组合应用模式,同时进行了典型化组合应用分析给出了实现方案,构建了基于移动变电站的旁路不停电检修技术模型。对移动变电站应用中的面向任务的虚拟管理组织模式、调控接入、运行维护进了可行性探讨。通过移动变电站在银川电网光华110k V变电站改造应用,分析了移动变电站的典型模式选择、负荷转移对接、一、二次对接等问题的解决方案,分析技术创新与成果,评估新技术带来的安全效益、经济效益。基于移动变电站的旁路不停电检修技术的研究不仅进一步拓展了电网检修传统方式,通过安全高效的旁路不停电检修作业技术体系,有效解决区域突发紧急用电、高负荷季节用电需求、大面积停电、自然灾害、设备突发故障的快速恢复等状况下的供电可靠性,保持城市及电网发展协调同步,逐步实现停电作业向不停电作业模式转变。
[Abstract]:With the development of economy and city, the demand of urban power grid transformation and the uninterrupted power supply demand of users, the contradiction between the demand of major activities, the bottleneck of the traditional power outage maintenance mode, the mobile substation as the extension of smart grid, During the upgrading of the power grid, the sudden failure of the equipment and the high load season, the safe operation of the urban power grid can be efficiently guaranteed based on its mobility and rapidity. Based on the on-board mobile substation of Yinchuan Power supply Co., Ltd., this paper introduces the mobile substation high-voltage combinatorial apparatus, the 20MVA on-board mobile transformer, the medium-low voltage gas-filled switchgear, the monitoring and protection system, and the control and protection system. Integrated power system and transportation vehicle system and other components. The application type and selection of mobile substation are analyzed. The special design of mobile substation such as vehicle, height, width and weight is described. The emphasis is placed on the research and development of the by-pass non-blackout technology based on mobile substation and the replacement combination application mode. At the same time, the typical combination application analysis is carried out and the realization scheme is given. The technical model of by-pass maintenance without blackout based on mobile substation is constructed. The feasibility of task-oriented virtual management organization mode, control access, operation and maintenance in mobile substation application is discussed. Based on the application of mobile substation in Guanghua 110kV substation of Yinchuan Power Network, the typical mode selection, load transfer and docking, primary and secondary docking of mobile substation are analyzed, and the technological innovation and achievements are analyzed. Evaluate the safety benefits and economic benefits of the new technology. The research of by-pass maintenance technology based on mobile substation not only further expands the traditional way of power grid maintenance, but also effectively solves the emergency power consumption in the area through the safe and efficient bypass maintenance technology system. The reliability of power supply under the conditions of high load seasonal demand, large area blackout, natural disaster, rapid recovery of equipment sudden failure etc., keeps the development of city and power grid in harmony and synchronizes, and gradually realizes the transformation from blackout operation to non-blackout operation mode.
【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】：TM63

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