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Search results for: power
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Year: 2010, Volume: 10, Issue: 4
... microcellular radio communications with the strongest signal assuming equal noise power among systems. The performance analysis includes the channel ... that increasing of number of lower 1 8 8 9 powered transmitters operating on the same frequency as 2 8 ... which the service area is subdivided into larger cells with high-powered base stations. In second case, there are ...
652. Control Strategy for Three Phase Voltage Source PWM Rectifier Based on the Space Vector Modulation
Year: 2010, Volume: 10, Issue: 3
... [5]. desired equilibrium point determined by unity power factor In this approach, dq currents are controlled ... VT 4 VT 5 VT 6 filtering harmonic contents on power-lines and improving VD 4 VD 5 VD 6 significantly ... power quality on the power-distribution system. Figure 1. Circuit schematic of three-phase voltage-source PWM There are many different ...
Year: 2010, Volume: 10, Issue: 3
... in practice, for example the variation of currents are endured by the motor and power system, causing initial voltage Ui, modification of the start time and load ... load is receiving considerable attention as an Modern design rules take full benefit of the powerful capabilities energy conservation measure. In particular, the power factor of computer-aided design ...
Year: 2010, Volume: 10, Issue: 3
... has been illustrated complex electrical phenomenon, which may cause over voltages in [8]. Mozaffari has been investigated the ferroresonance in and over currents in the electrical power system which power transformer and effect of initial condition on this endangers the system reliability and continuous safe operating. phenomena, he analyzed condition of occurring chaos in ...
Year: 2010, Volume: 10, Issue: 3
... and accuracy, e) indoor reception problem of the GPS radio frequency. energy efficiency, and f) low cost and complexity. Another radio-based technique uses the power of the We propose and discuss two methods of distance received signal to calculate the distance to the transmitter. measurement, MTDOA (Modified Time-Difference-of- Usually, ...
Year: 2010, Volume: 10, Issue: 3
... shunt active whole numbers of fundamental frequency, or sometimes power filter applied on 500KV HVDC, after a description ... form to another form. The converters conveying the high powers through the These converters bring a considerable progress in ... components which constitute them undergo considerable industrial processes. These converters are seen as being constraints during the control of ...
Year: 2010, Volume: 10, Issue: 3
... an approximation and a detail in currents asymmetry, but in some normal operation of power the first level. Then in the second level both detail and system, ... BP-ANN) power is supplied at 63 kV from a 30 MVA transformer. are powerful for pattern recognition. With proper training, This transformer has a wye ( ...
Year: 2010, Volume: 10, Issue: 2
... controller, based on reinforcement learning is is considered. In this generator, slip power is injected to the presented to control the WECS. The Actor-Critic learning AC ... used in the stability, speed control electric generators necessitate complicated and nonlinear system and maximum-power transfer of WECS. Self-tuning control of grid connected Wind Energy Conversion Systems adaptive ...
Year: 2010, Volume: 10, Issue: 2
... nr.2, RO-300223 Timisoara mihetz@yahoo.com Abstract — The installation of wind turbines in power systems distribution system, models have been developed for each has developed rapidly through ... and power factor compensation. The above presented model can be a useful tool for windpower industry to study the behavior and influence of big wind turbines (wind farm ...
660. Assessment of Distributed Generation Source Impact on Electrical Distribution System Performance
Year: 2010, Volume: 10, Issue: 2
... Source Impact on Electrical Distribution System Performance Manjunatha SHARMA, Panduranga Vittal KOPPAL National Institue of Technology Karnataka, India kms@nitk.ac.in Abstract — The recent trends in electrical power distribution evaluated on the load flow computations and impact of DGs system operation and management are aimed at improving on the network can be accessed. It is necessary ...
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