control of three phase inverters has been an important issue in recent years. this paper proposes active disturbance rejection control (adrc) scheme for controlling three phase inverters. the main advantage of adrc that motivated us for using this controller for inverter is that it is model independent.  this controller is used in a double loop structure including an inner current loop and oute...

An approach to the derivation of variable loop gain sequences of dual-loop digital phase-locked loop (DPLL) [1] is developed based on some modifications of the Kalman filtering formulation. It is shown that optimal loop gain sequences which are independent of measurement noise statistics can be obtained under a deterministic source model. Computer simulation results demonstrate that the adaptiv...

Experiments were conducted in a 76 mm diameter jacketed riser of a dual-loop high-density circulating fluidized bed facility with FCC particles of 65 lm Sauter mean diameter as bed material. The suspension temperature and the average and local suspension-to-wall heat transfer coefficients were measured. After superimposing the heat transfer results when the suspension near the wall is allowed t...

Conventional gyroscopes are equipped with a single-axis control input, limiting their performance. Although researchers have proposed control algorithms with dual-axis control inputs to improve gyroscope performance, most have verified the control algorithms through numerical simulations because they lacked practical devices with dual-axis control inputs. The aim of this study was to design a p...

Abstract In this paper, a Boost-PFC experimental prototype with dual closed-loop control is developed, which carried out by virtual-real interaction approach. Firstly, the optimized design of current inner loop and voltage outer MATLAB verified Simulink graphical virtual simulation. On basis, 250W Power Factor Correction (PFC) device was developed building hardware circuits. Through approach, e...

Abstract: This paper describes a computationally efficient (suboptimal) nonlinear predictive control algorithm. The algorithm uses a modified dual-mode approach which guarantees closed-loop stability. In order to reduce the computational burden, instead of online nonlinear optimisation used in the classical dual-mode control scheme, a nonlinear model of the plant is linearised on-line and a qua...

Main contributors • H. Klingbeil o closed-loop control DSP system, firmware and host software o ramp generation software for dual harmonic generation o LLRF design concept o Performing machine experiment • U. Laier o prototype & measurement setup o measurement data analysis o LLRF design concept o Performing machine experiment • D. Mondry o preparation of the measurement setup & infrastructure ...