College - Author 1

College of Engineering

Department - Author 1

Electrical Engineering Department

Degree Name - Author 1

BS in Electrical Engineering

Date

3-2019

Primary Advisor

Majid Poshtan

Abstract/Summary

The Microgrid is a small-scale electrical system that is designed to give Cal Poly students hands-on experience on power generation, system protection, distribution, and automation that would otherwise be very difficult to experiment in a large-scale model.

To closely replicate the modern electrical grid, a renewable energy source shall be added to the Microgrid in conjunction with the existing synchronous generators. Electrical engineering student, Virginia Yan initiated this effort, namely Grid-Tied Solar System project [1], by designing and constructing a set of solar panels and microinverter for future connection to the Microgrid. The scope of Virginia’s project was, however, limited to designing and constructing the panels and microinverter.

This Microgrid Renewable Energy Integration project aims to integrate the designed solar panels and microinverter to the Microgrid by testing the microinverter when running on islanded mode that replicates the Microgrid and eventually running with the Microgrid. The project develops test methods and solutions to enhance integration capability from the test results. In addition, this project implements basic power protection elements such as over-current and under-voltage. Protection schemes and monitoring are configured using Schweitzer Engineering Laboratories (SEL) relays, such as SEL-751 Feeder Protection Relay and SEL-735 Power Quality Meter. The success of the Microgrid Renewable Energy Integration project guarantees a smooth synchronization and secured operation of the microinverter to the Microgrid.

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