November 2021
Intermediate
416 pages
12h 42m
English
book
Harmonic Modeling of Voltage Source Converters using Basic Numerical Methods
by Ryan Kuo-Lung Lian, Ramadhani Kurniawan Subroto, Victor Andrean, Bing Hao Lin
Content preview from Harmonic Modeling of Voltage Source Converters using Basic Numerical Methods
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13Parameter Estimation for a Single VSC
“It takes both sides to build a bridge.”
– Frederik Nael
As mentioned in the previous chapters, VSCs have been widely used in modern power systems. Consequently, reliable operations of VSCs are essential for these systems to operate properly. A parameter estimator for a VSC acts as a useful tool for problem diagnosis and preventive maintenance. For instance, it has been reported in [124] that capacitors cause 
of the total failures in converter circuits, and capacitance value is a good indication of the health conditions of the capacitor. Moreover, a parameter estimator also allows one to construct an accurate simulation model of the system for component or control design [125], stability analysis [126, 127], fault detection [128, 129], and so on. For a typical two‐level VSC (refer to Fig. 13.1) at least nine parameters need to be identified [130]. They are the grid equivalent resistance (
) and inductance (
), filter resistance (
) and inductance (), dc capacitance (), and the proportional ( and ) and integral time constants ( and ) of current ...
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