【作者】 陈洵；

【导师】 王钢； 蒋健；

【作者基本信息】 华南理工大学 ， 电气工程（专业学位）， 2020， 硕士

【摘要】 电力行业中的低压集抄系统是指把分散的居民表计(电能表计量检测装置)读数通过各种通信手段集中起来,最终上传到营销系统,以便进行电费结算的智能化抄表与采集系统。但是,由于集中器与表计之间的通信方案多种多样,各通信模块厂家的通信技术方案基本是各自自主研发,没有统一的技术标准,从而造成了各通信方案之间不能兼容等问题,给台区的实际运维管理工作造成了很大的困难,也浪费了大量时间与财力。作为一个在职攻读工程硕士学位的学生,本文主要是试图从解决供电部门的实际需求入手,在了解掌握有关专业理论与设计思路的基础上,立足于低压集抄转换器产品的设计开发与实际应用,以适应工程硕士侧重工程应用、强调工程实践的要求。本文首先分析了目前低压集抄系统的体系架构,指出该系统存在同一个台区下挂不同通信方案的电表的状况,产生不同通信方案电表的数据不能同时抄回的问题,基于该问题提出并设计了低压集抄的互联互通转换器,以期实现不同通信方案数据的互联互通,并实现基于不同通信方案表计的友好接入。根据市场调研和评估,预计未来3年内本产品在南方电网地区约有28000台的需求。为了满足低压集抄互联互通转换器应该达到的技术要求,本文从芯片、电路、结构上进行低压集抄互联互通转换器的硬件设计。产品软件和流程方面则分别设计了替换集中器通信路由模块交互流程、低压集抄互联互通转换器交互流程、低压集抄互联互通转换器远程升级流程和远程拉合闸和费控功能流程,不同程序流程之间通过有机结合最终实现互联互通功能。为了验证低压集抄互联互通转换器的效果,运用调试工具,结合实验室和现场实地环境试验的方法进行产品测试。本文给出了测试方法和测试依据,比较不同环境下的测试结果。在现场实地环境试验中,选取5个省份的10个地市不同的供电台区进行现场试点运行,充分考虑了多种通信方案和地域版本差异化的因素,得出较为完善的测试数据和结论。更多还原

【Abstract】 The low-voltage centralized reading system in the electric power industry refers to the intelligent reading and collection system which gathers the scattered residential meter(electric energy meter measurement and detection device)readings through various communication means and finally uploads them to the marketing system,so as to carry out the electric charge settlement.However,due to the diversity of communication schemes between concentrator and meter,the communication technology solutions of each communication module manufacturer are basically independent research and development,and there is no unified technical standard,which leads to the problem of incompatible communication between various communication schemes,which causes great difficulties for the operation and maintenance management of the station area.Firstly,this paper analyzes the architecture of the current low-voltage centralized reading system,points out that the system has the situation of hanging meters with different communication schemes under the same station area,which results in the problem that the data of meters with different communication schemes cannot be copied back at the same time.Based on this problem,this paper proposes and designs the interconnection and interworking converter of the low-voltage centralized reading system,in order to realize the interconnection and interworking of data with different communication schemes Friendly access based on different communication schemes.According to the market research and evaluation,it is estimated that there will be about 28000 sets of this product in China Southern Power Grid in the next three years.In order to meet the technical requirements of the low-voltage centralized reading interconnection converter,this paper designs the hardware of the low-voltage centralized reading interconnection converter from the chip,circuit and structure.In terms of product software and process,the interaction process of the replacement concentrator communication routing module,the interaction process of the low-voltage centralized reading interconnection converter,the remote upgrading process of the low-voltage centralized reading interconnection converter,and the remote switching and cost control function flow are designed respectively.The interconnection function is finally realized through the organic combination of different program processes.In order to verify the effect of low-voltage centralized reading interconnection converter,the product test is carried out by using debugging tools,combining with laboratory and field environmental test methods.This paper presents the test method and test basis,and compares the test results in different environments.In the field environmental test,10 different power supply areas in 5 provinces were selected for field pilot operation,and the factors of various communication schemes and regional version differences were fully considered,and more perfect test data and conclusions were obtained.更多还原