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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <title>SELF EXCITED OSCILLATIONS OF DIESEL-GENERATORS OPERATING INDEPENDENTLY</title>
      <link>https://trid.trb.org/View/74214</link>
      <description><![CDATA[Recent operation failures of diesel generators operating on ships, which took the form of revolution oscillations caused by electromagnetic self-excitation phenomena are reported. Such phenomena were analyzed up to now only in operation of rigid grids while in the considered cases they appeared in a system consisting of only three aggregates.  The oscillation observed in certain ranges of the load was so strong that it made an ordinary parallel operation quite impossible and could be suppressed only by the use of additional damping windings.  Two phenomena leading to such effects, namely an electromagnetic torsion spring rigidness and its amplification influenced, usually, by a damping winding are analyzed.]]></description>
      <pubDate>Sat, 19 Aug 1978 00:00:00 GMT</pubDate>
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      <title>SOLID STATE SYSTEMS FOR MARINE PROPULSION</title>
      <link>https://trid.trb.org/View/12577</link>
      <description><![CDATA[The author details the application and development of the thyristor as a device associated with marine electric propulsion: from its original application of excitation control to its future fole of controlling the main power supply.]]></description>
      <pubDate>Thu, 18 Oct 1973 00:00:00 GMT</pubDate>
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      <title>A HIGH INITIAL RESPONSE BRUSHLESS EXCITATION SYSTEM</title>
      <link>https://trid.trb.org/View/3838</link>
      <description><![CDATA[A high initial response excitation system retaining the advantages of the absence of commutators, collectors and brushes while responding with the speed of an electronic exciter has been developed.  Calculated performance of this system has been confirmed by factory tests.  With the exciter loaded, the excitation system achieved 95 percent of ceiling voltage in 0.016 seconds following a 10 percent step change in the voltage regulator sensing signal.  In addition to the high initial response capability, the excitation system also includes supplementary feedback control for improving the small signal dynamic performance characteristic of the exciter.  With the addition of feedback, the effective exciter time constant is reduced by a factor of thirty compared to its value without feedback.  The tests confirm that low time constants and high initial response can readily be attained in an excitation system which includes a brushless exciter with non-controlled rectifiers.]]></description>
      <pubDate>Tue, 10 Apr 1973 00:00:00 GMT</pubDate>
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