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Design On Smart Terminal For Bidirectional Metering And Monitoring Considering The Access Of Distributed Resources

Posted on:2016-08-13Degree:MasterType:Thesis
Country:ChinaCandidate:Z ShiFull Text:PDF
GTID:2272330467489057Subject:Electrical engineering
Abstract/Summary:PDF Full Text Request
Under the impact of energy shortages and low-carbon economy, the penetration of distributed resources (DR), represented with PV and energy storage, in residential, commercial and industrial power systems keeps increasing. The combination of DR and microgrid control technology enables DR to get full advantage of energy saving, lower power consumption, and power quality&reliability improvement. In the trend of Smart Grid construction, the impact of electricity users’interaction on power system gradually gains attention. Electricity price can be used to guide users to make reasonable electricity usage strategies. And it is one of the main development directions of smart power construction, to achieve peak load shifting, as well as equipment utilization improvement in the power system. This paper focuses on smart energy management requirements of user-side microgrid considering the access of DR and designs the integrated terminal to achieve bidirectional metering and energy monitoring.The paper first analyses the functional requirements of a bidirectional metering and monitoring integrated terminal according to advanced metering infrastructure(AMI), and introduces the networking of integrated terminals for family users, building users and plant/park/block users. This also includes a further supplement to AMI according to the applications of integrated terminal. The hardware and software implement is then designed according to the functional requirements of integrated terminal. It contains a detailed description to hardware platform of integrated terminal based on ARM, including bidirectional energy measurement module, data storage module, human-computer interaction module, communication module and power module. The compatibility design on the integrated terminal hardware enables its usage in single-phase, three-phase as well as different networking demand applications. The FreeRTOS embedded real-time operating system is also transplanted on the hardware of integrated terminal and the device driver is also designed according to FreeRTOS. With respect to application software, many parts are performed such as bidirectional energy measurement module, communication module, human-computer interaction module, data storage management and control module, and energy efficiency management module.
Keywords/Search Tags:FreeRTOS, bidirectional metering and monitoring, LwIP stack, embeddedsystem
PDF Full Text Request
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