Control apparatus for a power converter
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United States of America Patent
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Nov 28, 2017
Grant Date -
Oct 20, 2016
app pub date -
Dec 4, 2014
filing date -
Dec 6, 2013
priority date (Note) -
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Abstract
A control apparatus configured to control a chain link voltage source converter, the control apparatus comprising; two converter controllers, each converter controller configured to receive a measure of the output voltage and/or current from the converter and determine a control signal therefrom for controlling the voltage source converter, each converter controller including at least one integrator element configured to perform an integration operation and output an integrator term in said determination of the control signal, a selector configured to select which one of the converter controllers provides its control signal to the converter; wherein each integrator element is configured to have two modes, a first mode in which the integrator element determines the integrator term and a second mode in which the integrator term is provided by a corresponding integrator element in the other converter controller.
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