In this paper, a five-level inverter is used as shunt active power filter (APF), taking advantages of the multilevel such low harmonic distortion and reduced switching losses. It to compensate reactive eliminate harmonics drawn from diode rectifier feeding RL load under distorted voltage conditions.

This paper presents five-level inverter as a shunt active power filter (SAPF) to compensate reactive and suppresses harmonics drawn from diode rectifier supplying RL load under distorted voltage conditions. The harmonic current extraction is based on the use of self tuning (STF) fuzzy logic controller employed control DC voltage. aim present work obtain perfect compensation by extracting accurate currents improve performances five-levels filters. proposed scheme validated computer simulation...

Wireless power transmission is a process that takes place in any system where electrical energy transmitted from source to an load without wired connection. ideal cases instantaneous or continuous transfer needed, but interconnecting wires are inconvenient, hazardous, impossible. Antenna has become the most vital element RF due its capability as radio wave transceiver. A properly designed antenna desirable ensure efficient of energy. This paper proposes square patch array 3×3 with circular...

This paper presents an interleaved boost DC-DC converter taking advantages such as low ripple current delivered by the PEMFC (Proton Exchange Membrane Fuel Cells), and reduction of stresses on semiconductors since each carries 1/N PEMFC. Undeniably, fuel cells are very sensitive to high undulation currents created power electronic converters. To improve lifespan PEMFCs, convert is proposed in this order reduce undulation. Also a detailed modelisation has been presented. The output voltage...

Partial shading is a common problem in photovoltaic (PV) systems, known for its difficulty. Numerous attempts have been conducted to mitigate this problem. Some of these efforts deploy metaheuristic optimization with view tracking the multiple-peak P–V curve partial PV system. Hence, paper proposes novel algorithm track maximum power point systems using Spotted Hyena Optimization (SHO) algorithm. When evaluated, SHO proved be very fast, robust, and accurate standard conditions, Shading...

This paper proposes a new multifunctional control technique for grid-connected hybrid distributed generation system composed of photovoltaic and wind power based on voltage source converter (VSC). Indeed, aside from the injection energy into grid, proposed deals with quality issues caused by harmonics generated non-linear loads in order to keep current uncontaminated. The VSC serves first ensure that renewable is fed utility grid acts as shunt active filter case an abnormal increase THD...

Piezo-pumps, in the last decade, have received extensive attention because of their potential applications biomedical devices, biological and chemical analysis, micro-electronics cooling space exploration. In this paper an analytical model is developed to analysis parameters effect on pump flow. The micro-pump driven by piezostack (PZT alloy multilayer) as actuator studied function size working middle. This one compared with SCMCP actuated PZT piezomembrane. flow change a frequency, chamber...

This paper presents a control strategy applied to three-phase uninterruptible power supplies with low switching frequency (1500 Hz). In The controller design, the gains are determined by minimizing cost function, which reduces tracking error and smoothes signal. A recursive least square estimator identifies parameters model at different load conditions. Then linear quadratic adapted periodically. output voltage is only state variable measured. other variables obtained estimation process....

This paper presents a control strategy applied for UPS with low commutation frequency. An adaptive linear quadratic controller (LQR) DC/AC converter is presented. The gains are determined by minimizing cost function. A recursive least square (RLS) estimator used to identify the parameters model at different load conditions. inductor current estimated Kalman filter. capacitor voltage and as state variables. Simulation results show that proposed offers good performances either non-linear loads...

This paper presents an enhanced control and fast fault detection method, localisation isolisation for a two-phase interleaved boost DC/DC converter specifically designed fuel cell applications. Fuel cells are known their rapidly changing output voltage current due to fluctuating load demands. Conventional converters might not be able respond enough maintain stable operation under such conditions.The design offers significant advantages. as reduced ripple delivered by dividing the Input...

Keeping electrical systems running is critical in industries especially those that rely on static converters, for example the case of inverters, continuous and safe operation must be ensured even if one inverter’s switch modules fails. This paper presents a method fault detection converters. The study 3-phase 3-level NPC (Neutral Point Clamped) inverter with IGBTs as switches where open-circuit or closed-circuit faults are considered. In addition, leg failure structural reconfiguration also...

In this paper, a nonlinear backstepping controller is proposed for control back-to-back high voltage direct current system using three-phase three-level source converters (VSC-HVDC). The mathematical model and structure discussed in synchronous rotating reference frame (d-q) the aim to provide dynamic performance with complete decouple of active reactive power. objective maintaining balanced voltages DC-link capacitors achieved by three level space vector modulation balancing strategy based...

This paper discusses neural network ANN controller applied for five phase shunt active power filter. Three-phase filters are widely studied, however in this we investigate to extend their application embarked electrical network. Two-level inverter is used as a filter reduce harmonics and compensate reactive injected by five-phase diode rectifier. An artificial has been regulate the DC side of inverter, thereby contributing calculation reference harmonic currents on one controlling other....

Even though the PI controller is among most widespread controllers in photovoltaic (PV) systems, it presents overshoots and undershoots tracking trajectory mode. This major disadvantage remains an open problem. In current paper, a Direct Power Control (DPC) of three-phase grid-connected PV system based on Variable Gain (VGPI) developed to remove classical controller. The proposed control has been tested Matlab/Simulink environment. simulation results demonstrate feasibility robustness method...