569 results found.
Year: 2015, Volume: 15, Number: 3
... 7-level CSI, respectively. Table I and II show the or conducted to the load. Therefore the output current can be switching combinations to achieve the desired levels ... CSI is presented. experimental results from a single-phase 5-level CSI laboratory One is thyristor-based load-commutated converter and the prototype demonstrate its validity. other is a GTO-based converter operating ...
Terms matched: 2 - Score: 8 - 1,143k
Year: 2015, Volume: 15, Number: 3
... ontological terms. II. DISCUSSION Dong-mei et al. [7] describes an ontology based automatic Data products from satellite observations are used for extract, transform and load (ETL) method for Ocean data various purposes in different applications such as natural integration. The approach has four phases 1) extract data resource management, ...
Terms matched: 1 - Score: 6 - 1,152k
Year: 2015, Volume: 15, Number: 3
... is illustrated by block diagram in Fig. 4.+ H/2 Nonlinear load input current can be expressed taking into if,ref or uf, ref ... switching power devices in accordance with the estimated power at industrial consumers) contain non-linear loads, reference signal. Active filter performances are significantly electric motor and static power ...
Terms matched: 2 - Score: 45 - 1,263k
Year: 2015, Volume: 15, Number: 3
... 1 can be measured (R 1 =100Ω, L 1 =25mH, C 1 =280pF). The wire's parameters can be determined using the reflected load theory (R w =5Ω, L w =25mH, C w =1.8µF). Then, the equivalent circuit of the Figure 4. Input ...
Terms matched: 1 - Score: 6 - 1,220k
Year: 2015, Volume: 15, Number: 3
... order to investigate as many initial conditions as transformer magnetization inrush are presented. Since the possible with no risk for equipment, performing simulations inrush current during switch-on of unloaded power transformer is stochastic, its values are obtained by: is very convenient [1]. (i) laboratory measurements and (ii) calculations based ...
Terms matched: 1 - Score: 55 - 1,566k
Year: 2015, Volume: 15, Number: 3
... C 2 serves as a dc bus capacitor and the resistor R 6 simulates a load. Power inductor L 5 of 680 H enables continuous conduction mode at low ... . Figure 1. The initial topology of the PV inverter. Inductors L 1 €“ L 4 simulate parasitic inductances of the PCB traces, which contribute to the ...
Terms matched: 2 - Score: 15 - 2,048k
Year: 2015, Volume: 15, Number: 3
... electromagnetic time constants are much Fig. 9 is very important since it represents the load torque T L smaller than the mechanical ones. of the wind turbine. ... distances from the model developed under Matlab/Simulink environment. heater to the thermal loads may increase the thermal losses Index Terms €” eddy currents, design optimization, ...
Terms matched: 2 - Score: 8 - 1,250k
Year: 2015, Volume: 15, Number: 3
... between the decreased transaction throughput. Initial research was system load/throughput and the query response time in a ... the possibilities of dynamic time of a query on a loaded data warehouse with a QoS control in a grid ... context. In [35], authors dynamically changing workload. They used a machine presented time series prediction ...
Terms matched: 6 - Score: 390 - 1,408k
Year: 2015, Volume: 15, Number: 3
... to know the structure of their harmonic devices in the load profile of modern systems and the spectrum. For ... of harmonics, time presentations of four characteristic switching surges overload of transformers, significant neutral line currents were recorded ... energization of an unloaded 35 kV and strong overheating of the lines are the typical problems underground transmission cable, ...
Terms matched: 3 - Score: 221 - 1,174k
Year: 2015, Volume: 15, Number: 3
... 300.01 The fault resistance (R f) can modify significantly the calculated distance to the fault in conventional relays [21]. E. Case V: Different load and operating conditions In order to evaluate the impact of this parameter in the algorithm performance, several cases were analyzed as The algorithm performance was analyzed with different ...
Terms matched: 1 - Score: 13 - 1,306k