电网调控与变电站视频联动系统的应用研究
发布时间：2018-12-14 08:05
【摘要】：作为电力系统的重要环节,变电站是整个电网监控建设的关键环节。为提高变电站的供电质量,保证电力系统正常稳定安全和可靠的工作,国家针对变电站的监控建设提出了更高的要求。当前,对变电站的监控建设重点集中在实现变电站的智能监控,无人值守。而实现这一建设目的,就需要建设电网调控和变电站的视频联动系统。针对调度监控和无人值班的建设,国家电网公司三集五大体系建设提出了很多新要求。在国家电网要求的“大运行”和“大检修”的职责界面:根据公司“三集五大”体系职责分工,“大运行”主要内容是完成在线监测告警信息及变电站设备的实时监视,并执行无功电压调整操作、断路器远程控制等功能,同时也可以通过工业视频系统对变电站开展定期巡视。另外,根据《国家电网公司关于印发推进变电站无人值守工作方案的通知》的要求:变电站和常规换流站应尽快具备无人值守条件。针对调度监控与视频监控,提出了新的要求如变电站视频定期巡视、自动巡视、灯光联动等功能。正是由于电网调控和变电站视频联动系统的应用,国家电网公司无人值守的实现才有了保障。本文主要研究变电站和电网调控视频联动系统的实际应用,并探讨了其在电网企业所能够实施的可行方案,其内容主要包括:第一章主要介绍已经投入使用的国内外变电站自动化监控和视频联动系统的研究情况,并介绍全文的研究内容;第二章主要介绍本文所研究的视频联动系统的应用范围和工程建设要求;第三章主要介绍调控主站改造方案和研究解决相关问题的方法;第四章主要介绍变电站端改造方案和研究解决相关问题的方法;第五章主要介绍并演示整个视频联动系统的实际工作效果;第六章对全文进行总结并提出需要进一步研究的地方。在实际运行情况和效率的基础上,还提出多种新的功能需要,同时配合厂家人员将功能化、模块化依次实现,不断研发新功能和应用以满足电网多种多样的需求,也要不断推广已应用成熟的视频联动系统。该系统具备在调度大屏上高清显示变电站视频信息和变电站远方视频联动(自动)显示的功能,也具备事故自动定位设备、定期自动巡视、灯光联动控制和对重要视频信息执行集中长期保存等功能,这些功能为无人值守打下了坚实的基础。该系统减少了大量的工作人员,提升了运行效率的同时,也保障了在新形势下电网更加安全可靠的运行。目前,21座500kV交流站已经全部实现无人值守,使得主要运检绩效指标得到大幅提升,其中,输变电系统综合可用系数已经达到了99.965%,城市用户供电可靠率更是达到了99.968%,综合电压合格率也达到了99.924%,而输变电设施强迫停运的次数同比降低62.5%,城市配网故障率同比降低14.3%,减少了1/3的电网事故处理环节,每年减少运维费用1240万元。
[Abstract]:As an important link of power system, substation is the key link of the whole power network monitoring and construction. In order to improve the power supply quality of the substation and ensure the normal, stable, safe and reliable work of the power system, the state has put forward higher requirements for the substation monitoring and construction. At present, the construction of substation monitoring focuses on the realization of intelligent substation monitoring, unattended. To achieve this goal, it is necessary to build the power grid control and substation video linkage system. For the construction of dispatching monitoring and unattended operation, the State Grid Company has put forward a lot of new requirements for the construction of three sets and five systems. In the responsibility interface of "big operation" and "large overhaul" required by State Grid: according to the division of duties and responsibilities of the company's "three sets and five big" system, the main content of "big operation" is to complete the on-line monitoring alarm information and the real-time monitoring of substation equipment. It also performs reactive power and voltage adjustment operation, circuit breaker remote control and so on. At the same time, the substation can also be inspected regularly by industrial video system. In addition, according to the requirement of the State Grid Corporation's notice on printing and issuing the unattended work plan of the propulsion substation, the substation and the conventional converter station should have the unattended condition as soon as possible. For dispatching and video monitoring, new requirements such as substation video regular inspection, automatic inspection, lighting linkage and other functions are put forward. Because of the application of grid control and substation video linkage system, the realization of unattended by State Grid Company has been guaranteed. This paper mainly studies the practical application of the video linkage system of substation and power network regulation and control, and discusses the feasible scheme that can be implemented in the power grid enterprise. The main contents include: the first chapter mainly introduces the domestic and foreign substation automation monitoring and video linkage system research situation, and introduces the research content of the full text; The second chapter mainly introduces the application scope and engineering construction requirements of the video linkage system studied in this paper, the third chapter mainly introduces the scheme of adjusting and controlling the master station and the methods to solve the related problems. The fourth chapter mainly introduces the transformation scheme of substation terminal and the methods to solve the related problems, the fifth chapter mainly introduces and demonstrates the actual working effect of the whole video linkage system. The sixth chapter summarizes the full text and points out the need for further study. On the basis of the actual operation and efficiency, we also put forward a variety of new functional needs, and at the same time cooperate with factory personnel to functionalize, modularize in turn, and constantly develop new functions and applications to meet the diverse needs of the power grid. It is also necessary to continue to promote the application of mature video linkage system. The system has the function of displaying video information of substation and remote video (automatic) display on dispatching large screen, and also has automatic location equipment of accident, and regular automatic patrol. The functions of lighting linkage control and centralized long term storage of important video information lay a solid foundation for unattended operation. The system not only reduces a large number of staff and improves the efficiency of operation, but also ensures a more secure and reliable operation of the power grid under the new situation. At present, all 21 500kV exchange stations have been unattended, which has greatly improved the performance indicators of major operations and inspection. Among them, the comprehensive availability coefficient of transmission and transformation systems has reached 99.965. The power supply reliability rate of urban users has reached 99.968 and the pass rate of comprehensive voltage has also reached 99.9240.The number of forced outages of power transmission and transformation facilities has been reduced by 62.5% compared with the same period last year, and the failure rate of urban distribution networks has decreased 14.3% compared with the same period last year. Reduced a third of the power network accident handling links, reducing annual operation and maintenance costs of 12.4 million yuan.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM63;TM73
[Abstract]:As an important link of power system, substation is the key link of the whole power network monitoring and construction. In order to improve the power supply quality of the substation and ensure the normal, stable, safe and reliable work of the power system, the state has put forward higher requirements for the substation monitoring and construction. At present, the construction of substation monitoring focuses on the realization of intelligent substation monitoring, unattended. To achieve this goal, it is necessary to build the power grid control and substation video linkage system. For the construction of dispatching monitoring and unattended operation, the State Grid Company has put forward a lot of new requirements for the construction of three sets and five systems. In the responsibility interface of "big operation" and "large overhaul" required by State Grid: according to the division of duties and responsibilities of the company's "three sets and five big" system, the main content of "big operation" is to complete the on-line monitoring alarm information and the real-time monitoring of substation equipment. It also performs reactive power and voltage adjustment operation, circuit breaker remote control and so on. At the same time, the substation can also be inspected regularly by industrial video system. In addition, according to the requirement of the State Grid Corporation's notice on printing and issuing the unattended work plan of the propulsion substation, the substation and the conventional converter station should have the unattended condition as soon as possible. For dispatching and video monitoring, new requirements such as substation video regular inspection, automatic inspection, lighting linkage and other functions are put forward. Because of the application of grid control and substation video linkage system, the realization of unattended by State Grid Company has been guaranteed. This paper mainly studies the practical application of the video linkage system of substation and power network regulation and control, and discusses the feasible scheme that can be implemented in the power grid enterprise. The main contents include: the first chapter mainly introduces the domestic and foreign substation automation monitoring and video linkage system research situation, and introduces the research content of the full text; The second chapter mainly introduces the application scope and engineering construction requirements of the video linkage system studied in this paper, the third chapter mainly introduces the scheme of adjusting and controlling the master station and the methods to solve the related problems. The fourth chapter mainly introduces the transformation scheme of substation terminal and the methods to solve the related problems, the fifth chapter mainly introduces and demonstrates the actual working effect of the whole video linkage system. The sixth chapter summarizes the full text and points out the need for further study. On the basis of the actual operation and efficiency, we also put forward a variety of new functional needs, and at the same time cooperate with factory personnel to functionalize, modularize in turn, and constantly develop new functions and applications to meet the diverse needs of the power grid. It is also necessary to continue to promote the application of mature video linkage system. The system has the function of displaying video information of substation and remote video (automatic) display on dispatching large screen, and also has automatic location equipment of accident, and regular automatic patrol. The functions of lighting linkage control and centralized long term storage of important video information lay a solid foundation for unattended operation. The system not only reduces a large number of staff and improves the efficiency of operation, but also ensures a more secure and reliable operation of the power grid under the new situation. At present, all 21 500kV exchange stations have been unattended, which has greatly improved the performance indicators of major operations and inspection. Among them, the comprehensive availability coefficient of transmission and transformation systems has reached 99.965. The power supply reliability rate of urban users has reached 99.968 and the pass rate of comprehensive voltage has also reached 99.9240.The number of forced outages of power transmission and transformation facilities has been reduced by 62.5% compared with the same period last year, and the failure rate of urban distribution networks has decreased 14.3% compared with the same period last year. Reduced a third of the power network accident handling links, reducing annual operation and maintenance costs of 12.4 million yuan.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM63;TM73
【参考文献】
相关期刊论文 前10条
1 邓景扬;;浅谈无人值守变电站设备巡视与维护[J];中国新技术新产品;2015年06期
2 查申森;窦晓波;王李东;郑建勇;孙e，
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