Multilevel hysteresis modulation (MHM) for sliding mode controlled dual inverter PV systems.

In this article, proposes an adaptive multiband hysteresis modulation and its characterization based on a robust nonlinear sliding-mode control (RNSMC) strategy of a dual two-level inverter topologies for photovoltaic (PV) system subject to robust and fast-tracking characteristics and external disturbance rejection. Using the RNSMC based novel, vector control schemes are designed and implemented to improve its robustness and against the rejection of external disturbances. The control scheme ensures the active power is stable across the whole operation of the PV systems (standalone and grid-connected).

A novel design methodology on cascaded fractional order (FO) PI-PD control and its real time implementation to Cart-Inverted Pendulum System.

The tune up of fractional order (FO)-PID controllers is largely advocated in available literature which mostly requires evolutionary optimization techniques or solution of complex non-linear equations thereby leading to lack of practical solutions in terms of selecting the controller parameters. It may be quite feasible if one can consider PID control in the form of cascaded PI-PD control with which the task of attainment of the control objectives can be accomplished methodically. In extension to this, studies related to FO PI-PD controller are not too exhaustive.

Fractional Order (FO) Two Degree of Freedom (2-DOF) control of Linear Time Invariant (LTI) plants.

The dynamics of Fractional Order (FO) System have recently attracted substantial attention in the field of control. Taking note of this, the Fractional Order (FO) controllers provides additional flexibility in the design by virtue of its non-integer orders. However, all the available control schemes in this domain are mostly featured in 1-DOF (Degree of Freedom) formation which compromises between response and loop goals.

Generalized phase compensator of continuous time plants.

This work proposes a novel design method for generalized order lead/lag compensators. With respect to the traditional lead/lag compensator, it introduces a new parameter, β, which is a non-integer number. A new design method of the compensator is introduced in order to quantify its design parameters.