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This paper investigated into a comparative study of modified swarm intelligence based algorithms for solving multi-objective optimal power flow incorporating wind power and load uncertainties to improve its efficiency and optimize power system generation. The proposed method has been tested under a number of modified IEEE test systems. The results show that solving the multi-objective optimal power...
This paper presents an inrush current reduction method for a 1/2 HP (0.4 kW), 220 V, 4.8 A, 4 poles single phase split-phase type induction generator when connected to a grid using single-phase voltage control with power electronic equipment. A study and analysis of relationship between voltage, current and real power by laboratory tests under direct on line and soft connection conditions are given...
This paper proposes a modified Cultural-based Bee Optimization Algorithm to solve the stochastic optimal power flow (SOPF) problem incorporating a set of wind farms to improve its efficiency and optimize power system generation. The proposed method has been tested under a number of modified IEEE test systems. The results show that solving the SOPF with the proposed algorithm are more effective than...
This paper proposes the investigation of skew effect on the behavior and performance of three phase, 2.2 kW, 220/380 V, Δ / Y connected, 1420 rpm, 4 poles grid connected induction generators with skewed squirrel cage rotor for supplying electric power to utility grid. Skewed rotor with angle of 0°, 5° and 10° for grid connected induction generators are employed. Analysis and comparative study on operating...
This paper presents new controller using FPGA and Real-Time Processor based on LabVIEW Programming that can be detected phenomena of Induction Generator (IG) isolated from grid. Advantage of controller can be monitoring voltage, current signal and reducing effect of buildup voltage of IG after disconnecting form grid system by connecting the impedance to IG terminal. The results demonstrate that the...
This paper presents performance evaluation of three-phase induction generator operating as a grid connected single phase induction generator using electronic capacitor for variable speed wind energy applications. When the existing delta connected three-phase can operate as a single-phase induction generator by voltage control techniques using electronic capacitor. The proposed converter system for...
This paper presents performance evaluation of a single — phase grid connected squirrel cage induction generator for variable speed wind energy applications. The existing delta connected three-phase induction generator can operate as a single-phase induction generator by connecting an external suitable capacitor across terminals. For the front end converter, a single-phase full bridge IGBT converter...
This paper presents the investigation of harmonic currents of a power system associated with a static Var compensator for grid-connected induction generators under condition of low wind speed. The static Var compensator uses fixed capacitor and thyristor controlled reactor. The investigation of reactive power compensation for 2.2 kW, 220/380 V, 8.5/5.2A, Δ/Y, 4 P, induction generator has been performed...
This paper presents a power supply for testing a 5 kVA induction motor, which can be applied to testing of induction motors and generators complied with the IEEE Std. 112-2004. The power supply consists of a three-phase AC-DC rectifier, a DC filter and a 6-step inverter with a low pass filer providing nearly sinusoidal output voltages. The blocked rotor test has been conducted at 25 % rated motor...
This paper proposes characteristic requirements of a small scale squirrel cage induction generator for effective electricity generation from wind energy. These characteristics are obtained from modeling and testing results. Investigation into comparative performances between Standard and high efficiency induction generators is given in order to find out the characteristic requirements of a suitable...
This paper proposes the design, analysis, and construction of a three phase, 0.75 kW, 220/380 V, 3.4/2.0 A, Δ/Y connected, 4 poles, SEIG (self-excited induction generator) based on empirical rules. The designed SEIG offers improved high efficiency and power quality. The design takes into consideration a skew effect and power quality. A 2D-FEA (2 dimension finite element analysis) is used to consider...
This paper proposes the investigation on the behavior and harmonic voltage distortion of terminal voltage regulation by static var compensators for three phase, 2.2 kW, 220/380 V, 8.7/5 A, 4-poles, self-exited induction generators (SEIG). Consideration of capacitance for the SEIG based on equivalent circuit model under steady - state load conditions and a power flow diagram is given. Two types of...
This paper proposes the investigation on the performance between standard and high efficiency induction machines operating as SEIG feeding the nonlinear loads having same rating of 3 phase, 2.2 kW, 220/380 V, 4 poles. Consideration of capacitance for the SEIG based on equivalent circuit model under steady-state load conditions and a power flow diagram is given. The interpretation of experimental results...
This paper proposes the investigation on the performance between standard and high efficiency induction machines operating as grid connected induction generators having same rating of three phase, 2.2kW, 220/380V, 4-poles for supplying electric power to utility grid. Analysis and comparative study on operating of induction generators under transient and steady state conditions at no-load and full-load...
This paper proposes the design and construction of three phase, 220/380 V, 3.4/2.0 A, Delta/Y connected, 4 poles, 0.75 kW a self-exited induction generator (SEIG). Analysis of the designed SEIG uses a finite element method. The designed SEIG has been tested and compared with a standard SEIG under operating conditions such as no-load and on-load with pure resistive load. Consideration of capacitance...
This paper presents the investigation of skew effects on the performance of three phase, 2.2 kW 220/380 volt 4 poles self-excited induction generators (SEIG) with skewed squirrel cage rotor. Analysis of excitation capacitor of the SEIG based on a steady-state equivalent circuit model including rotor skew effect is given. Skewed rotor with angle of 0deg , 5deg, and 10deg for the SEIG are employed....
This paper proposes the performance analysis and comparative study between standard and high efficiency squirrel cage self- excited induction generators (SEIG). Consideration of capacitance of SEIG based on equivalent circuit model is given. Testing and performance comparison under dynamic and steady state conditions for both pure resistive and resistive - inductive load conditions have been made...
This paper proposes a simple method for determining of capacitance requirements of three phase self-exited induction generators(SEIG). Consideration of capacitance of the SEIG based on equivalent circuit model under steady-state load conditions and a power flow diagram is given. Performance testing has been performed under a wide range of operating conditions such as no - load and on - load with pure...
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