Variable structure control of voltage sourced reversible rectifiers

Robust Adaptive Control of Pulse-width Modulated Rectifiers Based on Adaptive Super-twisting Sliding-mode and State Feedback Controllers

“…The chattering term in the control input V ds is the last term of Eq. (18), which is the discontinuous part of Eq. (18).…”

“…(18), which is the discontinuous part of Eq. (18). In this term, β decreases to a very low value, as proposed in [20].…”

“…The adaptive controller of Eqs. (18) and (23) with the parameter update laws of Eqs. (29) and (30) ensures that all signals in the closed-loop control system remain bounded, and the equilibrium manifold (e ds , e qs ) = (0, 0) is globally asymptotically stable.…”

“…The studies in [16,17] concluded with a compromise between the tracking precision and the chattering problem. The two time scale model of the PWM converter is used to design a variable structure controller to indirectly control the DC bus voltage of PWM rectifiers in [18]. There is a need for a priori knowledge about the parameters of the plant.…”

DC voltage design and corresponding compensation performance analysis for static var generator

“…For example, in [14], the DC voltage was chosen as 1-1.3 p.u. In [15,16], the voltage vector diagram was proposed and the maximum voltage vector was also analyzed. In [17,18], the DC voltage reference, as a function of var demand, is generated.…”