集成电能计量及远程互动的微型智能断路器设计

Design of Minimum Circuit breaker Integrating Electric Energy Metering and Remote Interaction

摘要:

目前微型断路器主要用于住宅配电线路的监控与保护,不具备多用电回路的分项电能计量及自动通断控制,也不支持远程互动;为提高断路器智能化、互动化水平,降低用户生活能耗,设计了一种集成电能计量及远程互动功能的微型智能断路器,包括断路器本体、开关电源模块、主控单元、采样回路、自动重合闸模块、显示屏等;通过基于RS-485总线的一路总开关、多路分开关的拓扑设计,实现家庭内多用电回路的分项用电数据计量、存储、显示及负荷曲线上传;基于电力线宽带载波通信方式实现用户经服务主站和集中器与断路器的远程互动;用户可查询家庭多用电回路的负荷情况并远程控制断路器自动对选定用电回路拉合闸,有利于提高住宅节能水平,适用于建筑能耗管理、电力需求侧响应等场合。

Abstract:

Nowadays minimum circuit breaker (MCB) is used for residential distribution line monitoring and protection, not supporting electric energy metering or automatic open-close control for multi-circuits. A design scheme of smart minimum circuit breaker integrating electric energy metering and remote interaction is proposed to improve intelligentization and communication level, which also contributes to decreasing house energy consumption. The smart MCB consists of circuit breaker, switching mode power supply, sampling circuit, auto-reclosure, display screen and so on. Metering, storage, display and upload of multi-circuits electric energy data as well as load curve, are available by “primary-branch” structure based on RS-485 bus. Users are able to communicate with household smart MCB in long distance by service station and concentrator based on power line broadband carrier. Electric energy data query and remote open-close control of selected home circuits are achieved, which is helpful to promote house energy conservation level, indicating a wide application in building energy consumption management and electric power demand side response.