Title :
Control of a medium-voltage test generator
Author :
Richter, Sebastian A. ; Von Bloh, Jochen ; Dick, Christian P. ; Hirschmann, Dirk ; De Doncker, Rik W.
Author_Institution :
Inst. for Power Electron. & Electr. Drives, RWTH Aachen Univ., Aachen
Abstract :
This paper describes the design of a digital control for a 3.3 kV, 1 MVA three-level PWM converter operating as test generator for disturbances in medium-voltage grids according to standards like IEC 61000, EN 50160, and IEEE 1547. The proposed control combines state-feedback with additional dynamic output feedback. It is designed fully in the stationary reference frame to avoid processing of complex transformations into different rotating reference frames. Resonant controllers provide zero steady-state error for up to ten harmonics. A DSP platform is used for implementing the control. It replaces the control unit of a commercial converter. Experimental results of a downscaled breadboard construction verify the functionality of the control.
Keywords :
PWM power convertors; digital control; power system control; state feedback; DSP; EN 50160; IEC 61000; IEEE 1547; PWM converter; digital control design; dynamic output feedback control; medium-voltage test generator control; state-feedback control; voltage 3.3 kV; zero steady-state error; Digital control; Error correction; IEC standards; Medium voltage; Mesh generation; Output feedback; Pulse width modulation converters; Resonance; Steady-state; Testing;
Conference_Titel :
Power Electronics Specialists Conference, 2008. PESC 2008. IEEE
Conference_Location :
Rhodes
Print_ISBN :
978-1-4244-1667-7
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2008.4592545
