10kV一体化智能环网柜的研究与设计

发布时间：2018-05-17 12:54

本文选题：智能环网柜 + 环网柜监测　；参考：《华南理工大学》2015年硕士论文

【摘要】：随着智能电网建设的深入推进,配网已成为我国电网建设的重点,配电开关成为配网中不可或缺的产品,直接关系到电网的安全性和可靠性。市场、社会及时代对配电开关设备在安全性、可靠性、小型化、智能化、创新性、环保性等方面的需求不断提高。本研究旨在设计一种高可靠性、高安全性的智能中压配电设备,将传统的中压开关单元、二次系统的量测、通信、自动化及电源等模块整合设计,实现一、二次设备的分区和深度融合,并结合监测设备及对开关运行状态、柜内温湿度状况、母排和电缆头温度、开关动作特性等进行监测,使中压配电网设备实现智能化。一体化智能环网柜,包括配网自动化终端、监测设备和开关设备。开关设备可选择负荷开关单元、断路器单元或者负荷开关+断路器单元的组合;监测包括温度监测、开关角位移监测、分合闸线圈电流曲线监测等。本研究的重点在于解决传统的环网柜各模块(带电显示器、故障指示器、保护装置)无分区混合安装模式,布局混乱问题;解决各模块接口没有规范化,组合难于设计问题;解决开关柜设备和运行环境不能实时监测的问题。对于当前传统环网柜所配套的独立的配网自动化终端DTU,基本要将环网柜中每一个进出线单元间隔(一次设备)所有二次信号线引进来,不但信号线接头多,而且工作量较大,易出错,可靠性差,因此提出简化系统接口及内部接线,对不同设备所需要的相同信号进行复合应用,减少重复采集和接线,提出标准接线定义,做到统一接口标准。进一步完善和丰富配电自动化智能终端的功能,使其除具备三遥采集和控制、基本故障判断和保护外,能采集各监测设备的压力、温湿度、角位移等数据,能实现故障录波并进行就地液晶界面的曲线查询,具备当前在配网中开始推广使用的61850通信技术。
[Abstract]:With the further development of smart grid construction, distribution network has become the focus of power grid construction in China. Distribution switch becomes an indispensable product in distribution network, which is directly related to the security and reliability of power grid. The market, the society and the times in the distribution switchgear in the security, reliability, miniaturization, intelligence, innovation, environmental protection and other aspects of increasing demand. The purpose of this study is to design a kind of intelligent medium voltage distribution equipment with high reliability and high security. The traditional medium voltage switching unit, the measurement, communication, automation and power supply modules of secondary system are integrated and designed. Combined with the monitoring equipment and the operation state of the switch, the temperature and humidity in the cabinet, the temperature of the bus bar and the cable head, and the characteristics of the switch operation, the equipment of the medium voltage distribution network can be intelligentized by the integration of the partition and depth of the secondary equipment and the monitoring of the temperature and humidity in the cabinet. Integrated intelligent ring cabinets, including distribution automation terminals, monitoring equipment and switchgear. The switchgear can choose the combination of load switch unit, circuit breaker unit or load switch circuit breaker unit; the monitoring includes temperature monitoring, switch angle displacement monitoring, current curve monitoring of closing coil and so on. The focus of this study is to solve the problems of mixed installation mode without partition and disordered layout of traditional modules (live display, fault indicator, protection device) in ring cabinets, and to solve the problem that the interface of each module is not standardized and the combination is difficult to design. Solve the problem that switchgear equipment and operating environment can not be monitored in real time. For the independent distribution automation terminal DTU, which is supported by the traditional ring cabinets at present, it is essential to bring in all the secondary signal lines of each incoming and outgoing line unit interval (primary equipment) in the ring network cabinets. Not only are there many signal line connections, but also the workload is large. It is easy to make mistakes and poor reliability, so it is proposed to simplify the system interface and internal wiring, to compound the same signals needed by different equipments, to reduce the repeated acquisition and wiring, to put forward the definition of standard wiring, and to unify the interface standard. To further improve and enrich the functions of the intelligent terminal of distribution automation, in addition to having three remote acquisition and control, basic fault judgment and protection, it can collect the data of the monitoring equipment, such as pressure, temperature and humidity, angular displacement, etc. It can realize the fault recording and the curve query of the local liquid crystal interface, and has the 61850 communication technology which has been popularized in the distribution network at present.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM642

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