This paper studies the technique of the composite nonlinear feedback (CNF) control for a class of cascade nonlinear systems with input saturation. The objective of this paper is to improve the transient performance of the closed-loop system by designing a CNF control law such that the output of the system tracks a step input rapidly with small overshoot and at the same time maintains the stabil...

Nonlinear plants can often be modelled as linear parameter varying (LPV) plants for which a number of techniques exist for control synthesis. However, there are some systems for which such a technique presents difficulties. In this paper, we consider one such system for which we propose a pole placement method using state feedback in order to cancel parameters variation of LPV plants. Hence, an...

PURPOSE We introduce our transient vascular occlusion technique that uses a vessel loop and Hem-o-Lok clips in laparoscopic partial nephrectomy. MATERIALS AND METHODS From March 2009 to March 2011, 15 consecutive patients underwent laparoscopic partial nephrectomy. All operations were performed by a single surgeon using the transperitoneal approach. The transient vascular occlusion technique ...

High penetration of rooftop photovoltaic (PV) systems in distribution feeders can give rise to overvoltage during peak generation hours. A well-known solution for this problem is Volt-VAR control method, which PV inverters mitigate the by reactive power absorption. The conventional scheme calculates reference based on a limited bandwidth V-Q droop controller. Although method capable steady-stat...

Reset controllers consist of two parts a linear compensator and a reset element. The linear compensator is designed, in the usual ways, to meet all closed-loop performance speci cations while relaxing the overshoot constraint. Then, the reset element is chosen to meet this remaining step-response speci cation. In this paper, we consider the case when such linear compensation results in a second...

The operation of single-phase Modular Multilevel Converter (MMC) is analyzed in the paper. A mathematical model converter developed and described, based on which structure selection parameters for Classical Control Optimal Switching State Model Predictive (OSS-MPC) are defined. Additionally, procedure determination circuit parameters, such as submodule capacitance arm inductance, described carr...

A less-intrusive solution to stabilize a voltage source converter (VSC) over an unknown grid strength is presented in this article. The existence of equilibrium point investigated as prerequisite stabilization. By partially imposing forming control, simple auxiliary outer loop proposed exhaust the physical limit power delivery steady state and provide support fault-ride-through (FRT) operations...

One type of power converter that is widely applied in the field renewable energy DC-DC Converter. In variousapplication cases, voltage control features are often required. challenges how to build a closed loop controller output this journal, an Arduino Mega based will be implemented. The implemented PI with consideration has been well-known tested and mathematically proven. set on block diagram...