This paper presents fuzzy logic control of Doubly Fed Induction Generator (DFIG) wind turbine in a sample power system. DFIG consists of a common induction generator with slip ring and a partial scale power electronic converter. Fuzzy logic controller is applied to rotor side converter for active power control and voltage regulation of wind turbine. Wind turbine and its control unit are describ...

In this paper, a reduced-sample-rate 2-2-0 deltasigma-pipeline analog-to-digital converter (ADC) is presented. The proposed architecture offers the possibility of implementing the reduced-sample-rate structure on higher order modulator without having stability or digital-to-analog converter (DAC) linearity problems. By the presented implementation approach some digital filters are eliminated, s...

Abstract: Power hardware-in-the-loop (PHIL) systems are advanced, real-time platforms for combined software and hardware testing. Two paramount issues in PHIL simulations are the closed-loop stability and simulation accuracy. This paper presents a virtual impedance (VI) method for PHIL simulations that improves the simulation’s stability and accuracy. Through the establishment of an impedance m...

In this paper, a comparative study on the subject of robust control of dc/dc PWM converters is presented. Considering a wide range of possible changes for the converter’s operating conditions, robust control of dc/dc PWM converters using some state of the art robust controllers i.e., ∞ H , μ , and fuzzy controllers is studied. The system under study is a CUK converter as a non-linear, variable ...

Stability Improvement of Grid-connected Converter with LCL Filter based on Capacitor Current Active Damping by Computational Delay Reduction

This paper presents an FPGA-based real-time simulator, for multilevel converter systems, that is primarily intended for hardware-in-the-loop (HIL) testing applications. The proposed simulator utilizes a customized hardware architecture, as the computational engine, that maps the solution algorithm of the power electronic system under consideration. The designed computational engine enables the ...

This paper presents a new predictive power-factorcorrection (PFC) controller for series-interleaved three-level boost (TLB) converters. Compared to the state-of-the-art TLB PFC controllers, where a two-cycle prediction and a detection of an operating region are necessary, the proposed controller achieves a low total harmonic distortion of the input current by using a single equation to predict ...

This work presents a new control method to track the maximum power point of a grid-connected photovoltaic (PV) system. A backstepping controller is designed to be applied to a buck-boost DC-DC converter in order to achieve an optimal PV array output voltage. This nonlinear control is based on Lyapunov functions assuring the local stability of the system. Control reference voltages are initially...

This proposed work aims at forming a switching level modeling of Unified Power Flow Controller (UPFC) and analyzing its operation. The switching level modeling of UPFC is carried out using high power electronic devices such as IGBT based six pulse shunt and series converters. The operating performance of UPFC is demonstrated on Single Machine Infinite Bus (SMIB) system for different case studie...

Multi-converter system is mainly used in advanced automotive systems. Different converters and inverters are taking part systems to provide different voltage levels a multi-converter system. It involves constant load (CVL), power (CPL) other loads. The CPL such offers negative impedance characteristic it creates destabilizing effect on the main converter. of destabilization can be reduced by in...