GridTrak
GridTrak Open Source SynchroPhasor PMU Project
Install / Use
/learn @ajstadlin/GridTrakREADME
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<h1><a href="https://github.com/ajstadlin/GridTrak/blob/master/Documentation/wiki/GridTrak_Home.md">
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<td style="width: 25%; text-align:center;"><b><a href="http://www.gridtrak.com">GridTrak</a></b></td>
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<p><strong>GTosPMU End of Life Notice - Sep 10, 2019</strong> <br>
The GridTrak PMU concepts are still functional and repeatable. It appears to be still possible to find suppliers for all of the components and build the GTosPMU sensor and program its firmware for anyone wanting to test the concepts. However, the advances and lower cost for single board computers with their extra features and accessories make them a practical alternative for experimenting with synchrophasor measurement.</p>
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<p><strong>Project Description</strong> <br>
The Open Source SynchroPhasor PMU Project provides resources that enable you to build your own SynchroPhasor measuring sensors for use with the openPDC project, research, development, or electric grid observation.</p>
<h1>Open Source SynchroPhasor PMU Project</h1>
<ul>
<li>Open source resources enable you to construct your own PMU for research, experimentation, development, or fun. The information provided here is intended to be reproducible, repeatable, and reusable in your own projects.
</li><li>The open source resources hosted here can be used with the openPDC - Open Source Phasor Data Concentrator project software.
</li></ul>
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<h1>GridTrak - <a href="https://github.com/ajstadlin/GridTrak/blob/master/Documentation/wiki/GridTrak_Open_Source_PMU_-GTosPMU-.md">Open Source PMU (GTosPMU)</a></h1>
<h3>How GridTrak Open Source PMU (GTosPMU) Works:</h3>
<p>The GridTrak PMU is a hardware sensor designed to measure and transmit AC SynchroPhasor Frequency, Phase Angle, and Magnitude digitally by:</p>
<ul>
<li>Converts the AC signal to complimentary square waves using a operatonal amplifier and precision voltage reference
</li><li>Uses a precision timer to measure square wave cycle (Frequency) and offset from a PPS time reference (Phase angle)
</li><li>Calculates Magnitude for the ideal sine wave of the signal </li><li>Optionally uses GPS for precision PPS triggering and SynchroPhasor measurement values
</li><li>Transmits Data per IEEE C37.118-2005 specifications or in plain text </li><li>Compatible with openPDC for extended application and systems development </li></ul>
<p>The GridTrak concept filters out the original wave form, harmonics, and distortion by the square wave conversion of the analog input signal to a digital signal. If you need to measure or observe wave form distortion or harmonics, this is not the PMU for
the job.</p>
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<p><strong>Photo - </strong><strong>GridTrak Model A, Rev 9.5 kit</strong></p>
<p><strong>Operational Open Source SynchroPhasor PMU with GPS Integration.</strong></p>
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<td style="width:60%"><strong><img src="https://github.com/ajstadlin/GridTrak/blob/master/Documentation/wiki/files/GridTrak_PMU_Mod_A_9-7_web.jpg" alt="" width="449"></strong></td>
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<p><strong>Photo - Testing a GridTrak Model A PMU with Garmin GPS 15xL-W. </strong>
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<p><strong>A bypass capacitor (upper right) is added to the PPS to reduce transient false signals.</strong></p>
<p><strong>Two serial port connections are shown. A completed Model A PMU will only require 1 serial port connection for operation, however, the second serial port remains available for direct PC to GPS connection for development and diagnostics.
</strong></p>
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<td style="width:60%"><img src="https://github.com/ajstadlin/GridTrak/blob/master/Documentation/wiki/files/GTosPMU_Mod_A_GPS.jpg" alt="" width="449" height="276"></td>
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Revised Nov 1, 2015 at 11:00 AM (UTC-5) by <a id="wikiEditByLink" href="https://github.com/ajstadlin/GridTrak/blob/master/Documentation/wiki/Contributors/ajstadlin.md">ajstadlin</a> - Information in the GridTrak project regarding the <i>other</i> <a href="http://openpmu.sourceforge.net/">OpenPMU Project</a> is now deprecated. Artifacts related to that project found here remain for archival reference only.<br />
Last CodePlex edit <span class="smartDate" title="4/25/2012 3:57:56 AM" LocalTimeTicks="1335351476">Apr 25, 2012 at 3:57 AM</span> by <a id="wikiEditByLink" href="https://github.com/ajstadlin/GridTrak/blob/master/Documentation/wiki/Contributors/ajstadlin.md">ajstadlin</a>, version 46<br />
<!--HtmlToGmd.Migration-->Migrated from <a href="http://gridtrak.codeplex.com">CodePlex</a> Oct 30, 2015 by <a href="https://github.com/ajstadlin/GridTrak/blob/master/Documentation/wiki/Contributors/ajstadlin.md">ajs</a><!--/HtmlToGmd.Migration-->
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Copyright 2015 <a href="http://www.gridtrak.com">GridTrak</a>
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