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The objective of this paper is to demonstrate a fully digital controller for interleaving DC/DC converter. In this paper, a new adaptive control method is proposed to improve the dynamic performance in rapid load current slew rate requirement. This control architecture is according to PID controller with Gain Scheduling architecture and based on pole-zero cancellation method to build the parameters...
Robust adaptive control techniques have always been used in numerous industrial applications. In this paper, the dead-zone technique is used to damp growing oscillations in flexible AC transmission systems (FACTS) which is regarded as a new control mechanism for FACTS. The developed controller will overcome the arising problems due to the uncertainty of system parameters and disturbances acting on...
This paper presents an effective method to improve the dynamic performance of permanent magnet synchronous motor(PMSM) servo system which can be implemented via on-line PI self-turning. The algorithm is deduced from the relationship between PI adaptive parameters and the inertia of the PMSM servo system. The proposed method is simple and easy to implement for realtime application. Simulation results...
This paper presents a mixed-signal power-factor-correction (PFC) control IC for the single-phase critical-conduction-mode (CRM) boost AC/DC converters. The peak current mode control is applied and analyzed by using the analog circuit. The voltage control loop is implemented in digital approach. This paper analyzes effect of the hysteresis band effect of the analog current comparator in current loop...
This paper proposes an adaptive backstepping controller design for a position control system of permanent-magnet synchronous motors. The proposed system has been successfully used in a knitting machine with satisfactory performance, including fast transient responses, good steady-state responses, and good tracking ability. Based on properly selecting a Lyapunov function, an adaptive backstepping position...
The linear synchronous motor (LSM) drive system using adaptive backstepping fuzzy neural network (ABFNN) control is investigated for the tracking of periodic reference inputs. First, the field-oriented mechanism is applied to formulate the dynamic equation of the LSM servo drive. Then, an adaptive backstepping approach is proposed to compensate the uncertainties in the motion control system. With...
In this paper, a new control strategy for a low cost series connected single phase PV module inverter is introduced that delivers full PV power (at MPPT) to the load together with voltage compensation. The inverter operates during the day time as an active power compensator as well as load voltage regulator under grid voltage sag, swell or even under normal condition. The compensating voltage provided...
A novel single-phase full-bridge soft switching rectifier (FBSSR) using a new resonance unit is proposed in this paper. All main switches in the proposed soft switching rectifier operate at zero-voltage-switching (ZVS) turn-on and turn-off. Moreover, the auxiliary switches operate at zero-current-switching (ZCS) turn-on and turn-off. Major benefits of this novel rectifier are found in efficiency improvement,...
This paper proposes an adaptive inverse controller design for a micro-permanent magnet synchronous motor control system. The adaptive inverse controller is constructed by using an adaptive model and an adaptive controller. The parameters of the adaptive model and adaptive controller are on-line tuned. By using a state estimator, the speed signal is obviously improved. In addition, the control system...
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