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In this paper, it was performed to optimize design of LSM for starting and operating characteristics improvement. Cogging torque and back-EMF were calculated by the no-load analysis, start-up time is calculated. Also, efficiency and torque ripple were calculated by steady state analysis. The characteristics of the motor were calculated through FEM. Validity of this study was proven through comparison...
In this paper, a three phase delta connected self-excited induction generator (SEIG) excited by two capacitors and feeding a single phase load is investigated in both transient and steady state cases. Using symmetrical components analysis, two simple formulas are derived to calculate the required values of the two capacitors that result in balanced stator phase currents under rated conditions, which...
This paper presents the analysis of the dynamic performance of a series-connected capacitor-run three-phase induction motor fed by single-phase power supply. The dynamic model was developed in Simulink based on stationary abc reference frame on stator and rotating dq0 reference frame on rotor. The model was validated by experimental results. The dynamic performance of the proposed connection was studied...
Stepping motors are electromagnetic incremental-motion actuators, which, when energized by a voltage and current input, index in given angular increments. Their inherent positional accuracy makes them suitable for a wide range of motion control and industrial positioning applications, especially when slow and precise movement is required. However, their speed is limited by their torque which diminishes...
Many techniques are available for control of three-phase machines to extract the best performance. However, no generalized technique exists for the application to single-phase induction motor (SPIM) drives. An application of SPIM is not just limited to fans, but it is being used in many domestic gadgets and consumer electronics applications. In this paper, a SPIM is controlled using a dynamic capacitor...
This paper proposes a simple method of evaluating the steady state characteristics of a stand-alone induction generator driven by a small hydro-turbine. The steady state operation of the generator is first described by a set of nonlinear equations using the conventional loop impedance approach. The torque-speed characteristic of the hydro-turbine is then carefully incorporated into the generator equations...
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