نتایج جستجو برای: selective harmonic elimination
تعداد نتایج: 299915 فیلتر نتایج به سال:
This paper presents a Selective Harmonic Elimination-PWM technology (SHE-PWM) employing H-Bridge multilevel inverter configuration. In this method variable DC voltage is used and the lower order harmonics are eliminated, without affecting the structure of the inverter. This method gives constant switching angle, so it reduces the number of steps required for offline calculation. The proposed me...
In this paper, selective harmonic elimination pulse width modulation (SHEPWM) using Real Coded Genetic Algorithm (RGA) and Particle Swarm Optimization technique (PSO) for single phase Matrix converter is developed and discussed. In these techniques, the objective function is optimized for optimum switching angles. The switching frequency is fixed and is equal to output frequency. The objective ...
This paper implements Broyden's Method Assisted Differential Evolution (BMADE) algorithm for eliminating third and fifth harmonics in the output voltage of 7-level cascaded H-Bridge multilevel inverter (CHB-MLI) using selective harmonic elimination technique. Calculations switching angles are done various modulation index values (M). Initial guess method is calculated by (DE). Exact value then ...
This paper presents a unified approach for generating pulsewidth-modulated patterns for three-phase current-source rectifiers and inverters (CSR/Is) that provides unconstrained selective harmonic elimination and fundamental current control. The approach uses the chopping angles or gating patterns developed for voltage-source rectifiers and inverters in combination with a logic circuit to genera...
Harmonic identification by using Adaptive Tabu Search (ATS) Method embedded in the active power filter is proposed in this paper. The use of the ATS identifies harmonic components more accurately and precisely. Besides the accuracy and precision, it is able to select only some particular harmonic orders that cause severe consequences to the system for elimination. This principle thus leads to t...
Abstract— This paper presents Neuro-Fuzzy logic based Power Conditioner for elimination of current harmonic. In it neuro-fuzzy based technique is used for generating compensating current to eliminate/reduce the harmonics content which is generated by the system. The modelling of Fuzzy rule base on Neural Network is also mention in this paper. FFT analysis also has been done for the calculation ...
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