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Virtual Intertia in Power Systems

  1. Sep 6, 2016 #1
    Hi again PF.

    I recently came across the term "virtual inertia" when reading about photovoltaics and power converters (DC/DC, DC/AC etc.). Article: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6953370, not sure if people are able to view the article, I have access via university library.

    I have problem understanding the term virtual inertia, PV modules themselves have no inertia, but when connected together with a energy storage device, a battery for example, can introduce virtual inertia to the grid, how?

    My background is from mechanical, just started learning electrical engineering. So from a mechanical background I have trouble understanding how the setup mentioned above can introduce inertia without any rotating parts, hence virtual inertia.
  2. jcsd
  3. Sep 6, 2016 #2


    Staff: Mentor

    The abstract explains it. They propose to use batteries and smart controls to make the PV installations simulate the behavior of a power plant that really does have inertia.
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