2 MJ Superconducting Magnetic Energy Storage -SMES

<body bgcolor="#FFFFFF" topmargin="0" leftmargin="0"> <table border="0" width="650" bgcolor="#FFFFFF" cellspacing="0" cellpadding="0"> <tr> <td width="70" height="50" valign="top" align="left"><img src="../images/news_small.gif" alt="News" width="70" height="43"></td> <td width="10" height="50"></td> <td width="570" height="50" valign="middle" align="left"><strong><big><font face="Arial">2 MJ Superconducting Magnetic Energy Storage - SMES</font></big></strong></td> </tr> </table> <table BORDER="0" CELLSPACING="0" CELLPADDING="0" WIDTH="650" height="500" bgcolor="#FFFFFF"> <tr> <td WIDTH="650" VALIGN="top" height="168" colspan="4" bordercolor="#FFFFFF"> <p style="line-height: 100%"><font FACE="Arial" size="2">The <b>ACCEL Instruments GmbH</b> team has designed a 2 MJ superconducting magnetic energy storage (SMES). This SMES is embedded in a collaboration with the E.U.S. GmbH, Germany, to develop a superconducting UPS funded by the NRW country, Germany. The SMES will be used to ensure the power quality of a laboratory plant of the Dortmunder Elektrizitäts und Wasserwerke. The SMES is connected by a DC link converter to the electrical grid of the plant. The system is designed for a carry over time of 8 s at an average power of 200 kW. The SMES is wound of NbTi mixed matrix superconductor. The SMES has a helium transparent winding to improve the removal of AC losses of the superconductor during ramping of the magnet. Superconducting HT</font><font face="Arial" size="1"><sub>c</sub></font><font FACE="Arial" size="2"> current leads are applied to reduce the heat load from 300 K to the LHe level. This magnet system is designed for zero boil off of the LHe. The helium will be recondensed with a two stage cryocooler. The SMES has a sophisticated quench protection system.</font></p> </td> </tr> <tr> <td WIDTH="320" VALIGN="top" height="80" rowspan="3" bordercolor="#FFFFFF"><font FACE="Arial" size="2"><strong><br> Features of the design are:</strong></font><ul> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">LT- SMES with 2 MJ </font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Zero boil-off system</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Two stage cryocooler</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">60 K shield</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">High temperature current leads</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Helium transparent winding</font></li> </ul> </td> <td WIDTH="10" VALIGN="TOP" height="80" rowspan="3" bordercolor="#FFFFFF"></td> <td WIDTH="178" height="45" bordercolor="#FFFFFF" valign="top"><strong><font face="Arial"><br> <small>Properties</small><small>:</small><br> </font></strong></td> <td WIDTH="142" VALIGN="top" height="45" bordercolor="#FFFFFF"><font face="Arial"><br> </font></td> </tr> <tr> <td WIDTH="178" VALIGN="top" height="135" bordercolor="#FFFFFF"><ul> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">SMES Current</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Stored Energy</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Average power</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Maximum power</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Carry Over Time</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">DC Link Voltage</font></li> <li> <p style="line-height: 100%"><font face="Arial" size="2">Magnetic field</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Inductivity</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Magnet Diameter</font></li> <li> <p style="line-height: 100%"><font FACE="Arial" size="2">Height</font></li> </ul> </td> <td WIDTH="142" height="135" bordercolor="#FFFFFF" valign="top"> <p style="line-height: 100%"><font FACE="Arial" size="2">I<font face="Arial" size="1"><sub>SMES</sub></font> = 1000 A<br> 2.1 MJ</font><font FACE="Arial" size="3"> </font><font FACE="Arial" size="2"><br> 200</font><font FACE="Arial" size="3"> </font><font FACE="Arial" size="2">kW<br> 800</font><font FACE="Arial" size="3"> </font><font FACE="Arial" size="2">kW<br> >8</font><font FACE="Arial" size="3"> </font><font FACE="Arial" size="2">s<br> Up to</font><font FACE="Arial" size="3"> </font><font FACE="Arial" size="2">800 V<br> 4.5 T<br> 4.1</font><font FACE="Arial" size="3"> </font><font FACE="Arial" size="2">H<br> 760</font><font FACE="Arial" size="3"> </font><font FACE="Arial" size="2">mm<br> 600</font><font FACE="Arial" size="4"> </font><font FACE="Arial" size="2">mm</font></p> </td> </tr> <tr> <td WIDTH="178" VALIGN="top" height="15" bordercolor="#FFFFFF"></td> <td WIDTH="142" VALIGN="top" height="15" bordercolor="#FFFFFF"></td> </tr> <tr> <td WIDTH="320" VALIGN="top" height="240" align="center" rowspan="2" bordercolor="#FFFFFF"><font FACE="Arial" size="2"> <img border="0" src="../images/2mj_smes.jpg" alt="2 MJ SMES" width="240" height="313"></font></td> <td WIDTH="10" VALIGN="top" height="240" rowspan="2" bordercolor="#FFFFFF"></td> <td WIDTH="320" VALIGN="bottom" height="105" colspan="2" align="center" bgcolor="#FFFFFF" bordercolor="#FFFFFF"><img src="../images/2_mj_smes_small.gif" alt="2_mj_smes_small.gif (10741 Byte)" WIDTH="315" HEIGHT="219"></td> </tr> <tr> <td WIDTH="320" VALIGN="bottom" height="115" colspan="2" bgcolor="#FFFFFF"> <p style="line-height: 100%"><br> <font FACE="Arial" size="2"><strong>For further information please contact</strong>:<br> <br> Dr. Detlef Krischel<br> ACCEL Instruments GmbH<br> Friedrich-Ebert-Straße 1<br> D-51429 Bergisch Gladbach<br> Telefon +49 (22 04) 84-40 51<br> Telefax +49 (22 04) 84-25 01<br> E-Mail <a href="mailto:krischel@accel.de">krischel@accel.de</a></font></p> </td> </tr> </table> <table border="0" width="650" cellspacing="0" cellpadding="0"> <tr> <td width="650"></td> </tr> </table> <table border="0" width="650" height="100"> <tr> <td width="650" valign="top" align="left" height="5" colspan="3"><hr> </td> </tr> <tr> <td width="220" valign="top" align="left" height="15"></td> <td width="210" valign="top" align="left" height="15"></td> <td width="220" valign="top" align="left" height="15"></td> </tr> <tr> <td width="220" valign="top" align="left" height="15"></td> <td width="210" valign="top" align="left" height="15"></td> <td width="220" valign="top" align="left" height="15"></td> </tr> <tr> <td width="220" valign="top" align="left" height="15"></td> <td width="210" valign="top" align="left" height="15"></td> <td width="220" valign="top" align="left" height="15"></td> 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