Active filters have proven to be more effective than passive techniques to improve power quality and to solve harmonic and power factor problems due to nonlinear loads. This paper proposes a control scheme based on the instantaneous active and reactive power. The inverter of this active filter is a three-phase, two-level converter. Space vector technique is used as modulators and pattern genera...

The paper is devoted to solution of some problems in nuclear power station generating unit intellectual control systems using genetic algorithms on the basis of control system model development, optimizations methods of their direct quality indices and improved integral quadratic estimates. Some mathematical vector models were obtained for control system multicriterion quality indices with due ...

this paper introduces an indirect adaptive fuzzy sliding mode controller as a power system stabilizer for damping local and inter-area modes of oscillations of multi-machine power systems. this controller is designed based on the combination of sliding mode controller and the fuzzy logic systems. the fuzzy systems are used to approximate the unknown functions of power system model. generator sp...

A novel voltage-modulated direct power control (VM-DPC) is first designed for a back-to-back (BTB) converter in the doubly fed induction generator (DFIG) system. The proposed VM-DPC built stator stationary reference frame (??). method uses simple feed-forward and feedback structure without phase-locked loop Park transformation. Therefore, it can be easily implemented BTB converter. Another esse...

Starting from the principle of instantaneous power theory, this article explores various direct control (DPC) strategies for three-phase two-level pulsewidth modulation (PWM) converters. After summarizing fundamental formula PWM rectifiers, studies operating conventional table-based approach and its related improvements. It further looks into advanced counterparts employing space vector differe...