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Real-time dynamic control of dynamic power filters in supplies with high contamination

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2 Author(s)
van Harmelen, G.L. ; Dept. of Electr. Eng., Pretoria Univ., South Africa ; Enslin, J.H.R.

A real-time closed-loop system for controlling dynamic power filters under rapidly varying nonlinear loading conditions is tested and evaluated. With the aid of a dedicated microprocessor system, using correlation algorithms, real-time reference signals for a dynamic compensation system are generated. In order to facilitate a cost effective compensation system, separate compensation of the fundamental reactive power component and the harmonic components is further investigated. A total algorithm time of 312 μs for a 50 Hz system is achieved, providing accurate compensation effort up to the 21st power system harmonic

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Power Electronics, IEEE Transactions on  (Volume:8 ,  Issue: 3 )