RESEARCH INVESTIGATIONS AND DEVELOPMENT OF SMART METERING INFRASTRUCTURE FOR RESIDENTIAL MICRO GRID

摘要

This paper proposes the research investigations, modeling and simulation of smart metering infrastructure for small scale domestic electricity generation and utilization between houses connected in a Micro Grid (MG). The primary objective of this paper is to model an Automated Metering Infrastructure (AMI) which is intelligent enough to monitor and control the transfer of power through the entire provincial electricity system. The system measures the instantaneous power being delivered to the homes connected in MG, records generation and consumption data on an hourly/weekly/monthly basis. It also detects the power outages. A typical MG architecture has been proposed with four model houses having different connected loads. Graphical User Interface (GUI) based AMI has been designed for a model MG with two intelligent units namely Residential Monitoring Unit (RMU) located in all the homes connected in the MG and Global Monitoring Unit (GMU) located centrally. Communication between RMU and GMU is emphasized in different power conditions in order to export or import of the power to/from MG. The effectiveness of the proposed architecture has been tested with different loaded conditions of the each individual houses. The plots of generated consumed power verses connected load for any house along with all the events recorded in the data base have been obtained. The results are found to be satisfactory when compared to the other existing models.