نتایج جستجو برای: reference current generation
تعداد نتایج: 1334325 فیلتر نتایج به سال:
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
A modified circuit topology for voltage references capable of providing very high load current with low-temperature-sensitivity output voltage is presented. Employing a proportional-to-absolute-temperature current source and a complementary-to-absolute-temperature voltage source in a novel closed-loop configuration, the output voltage can be tuned over a wide range of voltages lower or higher t...
This paper proposes an anti-islanding control for a grid connected distributed generation system. The proposed control is based on d-q frame. The scheme using current command reference as positive feedback is utilized to drift the PCC voltage beyond the threshold limits to detect islanding within 2 seconds as prescribed by IEEE 1547. The test system configuration and parameters for anti-islandi...
This paper investigates an improved control strategy for a doubly-fed induction generator (DFIG) based wind-power generation system with series grid-side converter (SGSC) under network unbalance and harmonic grid voltage distortion conditions. The integrated mathematical modeling of the DFIG system with SGSC is established by taking both the negative-sequence and harmonic components of the grid...
Reference architectures are most commonly thought of as tools which enable modules developed at different institutions to be easily integrated. However, reference architectures can also be used for other purposes. In particular, they can make it easier to describe the architecture of systems, by allowing developers to just describe how their architecture differs from the reference one. This is ...
Reliable study results are necessary for the assessment of discoveries, including those from proteomics. Reliable study results are also crucial to increase the likelihood of making a successful choice of biomarker candidates for verification and subsequent validation studies, a current bottleneck for the transition to in vitro diagnostic (IVD). In this respect, a major need for improvement in ...
Development of advanced spectral wind wave models has been the subject of comprehensive researches which has led to reliable wave predictions for assessing the impact of waves on the natural environment, coastal protection, offshore structures and harbor over the past two decades. On the other hand, the Geographical Information Systems (GIS) are developed for working with geographical data whic...
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