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Elimination of the electrolytic capacitor in the inverters of motor system driven domestic appliances is desirable, because the electrolytic capacitor increases the appliance volume and has the problem of short lifetime. Two different control methods for an interior permanent magnet synchronous machine (IPMSM) speed control system without an electrolytic capacitor are compared. The performance of...
Permanent-magnet synchronous motors (PMSMs) with a sinusoidal back EMF are widely used in domestic appliances for reduction of acoustic noises and energy consumption. PMSMs are generally controlled with a sinusoidal waveform current. Typically, PMSMs are controlled by vector controlled sinusoidal drives, which require powerful computational resources. Hence, simpler sinusoidal wave drives such as...
Permanent magnet synchronous motors (PMSMs) with sinusoidal waveform back electromotive force (EMF) are widely applied to home appliances to reduce acoustic noises and energy consumption. PMSMs are generally controlled with a sine waveform current, sine-wave drive for PM motor controlling the phase difference between the voltage and the current has been proposed to control PMSMs efficiently. That...
High power and high efficiency in high-speed operation (e.g. 50,000 r/min) is required for motors used for vacuum cleaners. The permanent magnet synchronous motor (PMSM) is a high efficiency motor in the usual operation region. Large iron losses are generated in conventional PMSMs during high speed operation; therefore, the motor efficiency decreases considerably. In this research, we examine the...
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