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This study presents a power factor correction-based single-ended primary inductance converter (PFC-SEPIC) feeding brushless DC (BLDC) motor drive for low-power household appliances. In a conventional scheme of BLDC motor, the speed is varied by controlling the duty ratio of high-frequency pulse width modulation signals, which increase the switching losses in the voltage source inverter (VSI) feeding...
This paper presents a proposed modeling and numerical simulation of the speed control ac series motor fed from pulse width modulated ac chopper voltage control. The advantage of this system is its high power factor and less total harmonic distortion factor of the motor current. The digital simulation of this system is described the system behavior in the transient and steady - state conditions. The...
High speed flywheel energy storage system (FESS) is one of the most energy dense storage technologies proposed for traction applications. In this paper, performance of a high speed and high power FESS using a permanent magnet synchronous machine (PMSM) is evaluated during both charging (motoring) and discharging (generating) modes of operations. A PWM inverter (rectifier) interfaces between the DC...
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