نتایج جستجو برای: 3l
تعداد نتایج: 1178 فیلتر نتایج به سال:
The physiological and agronomic responses of two irrigation systems were compared in ‘Fino 49′ lemon trees (Citrus limon [L.] Burm. fil.). consisted different designs the installation (same amount water frequency): a conventional design (2L, drip lines with six drippers per tree), larger wetted surface (3L, implementing third line nine tree). Results indicated that 3L promoted better distributi...
In this article, switching strategies for dc-link current and voltage ripple reduction have been studied. The considered topology is a neutral-point clamped three-level (NPC-3L) inverter feeding dual three-phase permanent-magnet synchronous motor (PMSM). mechanisms of generation in an NPC-3L inverter-fed PMSM drive are analyzed detail. Then, two-step collaborative strategy proposed, where the o...
Land-surface models are widely used to simulate and predict the movement of momentum, energy, and matter between the biosphere and the atmosphere at local, regional and global scales. In this study, in order to evaluate the performance of this model in daily simulation of discharge in Gharesou watershed, using a spatial resolution of 0.125 degrees, satellite imagery and global databases to prov...
Multilevel inverters have been widely used in various applications, as they provide output voltage with better quality, lower dv/dt, and Total Harmonic Distortion (THD). inverter such Neutral Point Clamped (NPC) uses a large number of semiconductor devices (IGBTs diodes) which negatively affects the cost efficiency. Recently, three-level (3L) F-type has proposed switch stresses, cost, losses co...
In this paper, a comparative analysis is obtained to analyse the performances of two-level conventional and three-level diode clamped voltage source inverter-based drives. Carrier-based space vector modulation technique employed in both & inverter (2L-VSI)-based Comparative study for 2L-VSI, neutral-point-clamped (3L-NPC) T-type (3L-TNPC) inverters are performed view conduction switching losses...
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