Zusammenfassung In diesem Beitrag wird die beobachterbasierte Zustandsregelung von Strecken mit Stellsignalbegrenzung auf allgemeinere dynamische Ausgangsrückführungen für Zwei-Freiheitsgrade-Regelungen erweitert, die sowohl statische als auch dynamische Rückführungen beliebiger Ordnung umfassen. Die Bestimmung der neuen Ausgangsregler erfolgt durch den unabhängigen Entwurf einer statischen Aus...

The modular multilevel converter (MMC) has been widely adopted in different applications, such as high-voltage direct current (HVDC), electric drives and static synchronous compensators. Despite the application, MMC realization requires a high number of power electronic components, sensors, communication cables. This paper proposes sliding-mode observer for capacitor voltages MMC, using measure...

Optical amplifiers and dispersion compensators form important components of any DWDM system and the overall performance of the system depends critically on the spectral properties of these and other components in the link. This has led to the development of optical amplifiers and fiber based dispersion compensators with specific wavelength dependent characteristics. Dual concentric core fibers ...

This paper presents sufficient conditions for the design of strictly positive real (SPR), fixed-order dynamic compensators. The primary motivation for designing SPR compensators is for application to positive real (PR) plants. When an SPR compensator is connected to a PR plant in a negative feedback configuration, the closed loop is guaranteed stable for arbitrary plant variations as long as th...

High quality sound reproduction by loudspeakers is increaringly problematic if the dimensions of the loudspeaker decrease. To produce enough power, large diaphragm excursions are needed which give rise to significant distortions especially at very low frequencies. Instead of improving the mechanical construction of the transducer we apply a feedforward nonlinear digital inverse circuit. Results...

This study investigates the use of H2, -synthesis, and mixed H2= methods to construct full order controllers and optimized controllers of xed dimensions. The benchmark problem de nition is rst extended to include uncertainty within the controller bandwidth in the form of parametric uncertainty representative of uncertainty in the natural frequencies of the design model. The sensitivity of H2 de...

This paper presents sufficient conditions for the design of strictly positive real (SPR), fixed-order dynamic compensators. The primary motivation for designing SPR compensators is for application to positive real (PR) plants. When an SPR compensator is connected to a PR plant in a negative feedback configuration, the closed loop is guaranteed stable for arbitrary plant variations as long as th...