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2010•Small & Special Electrical MachinesRequires access

Design of BLDCM Sine-Wave Driving System Based on dsPIC30F2010

Liu Guan-zhi

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Abstract

Aiming at BLDCM with a Hall rotor position sensor,a new method of sine-wave driving BLDCM was provided,in which dsPIC30F2010 was regarded as the core control unit.The period and amplitude of the modulating sine wave were obtained according to the position and velocity information included in the three-phase Hall signals.Then using the asymmetry regular sampling,six sine pulse width modulation(SPWM) signals were generated.Simulation and experimental results show that this method can make BLDCM driven by SPWM stably under the condition of low cost.

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What this paper is about

Aiming at BLDCM with a Hall rotor position sensor,a new method of sine-wave driving BLDCM was provided,in which dsPIC30F2010 was regarded as the core control unit.The period and amplitude of the modulating sine wave were obtained according to the position and velocity information included in the three-phase Hall signals.Then using the asymmetry regular sampling,six sine pulse width modulation(SPWM) signals were generated.Simulation and experimental results show that this method can make BLDCM driven by SPWM stably under the condition of low cost.

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Available abstract

Aiming at BLDCM with a Hall rotor position sensor,a new method of sine-wave driving BLDCM was provided,in which dsPIC30F2010 was regarded as the core control unit.The period and amplitude of the modulating sine wave were obtained according to the position and velocity information included in the three-phase Hall signals.Then using the asymmetry regular sampling,six sine pulse width modulation(SPWM) signals were generated.Simulation and experimental results show that this method can make BLDCM driven by SPWM stably under the condition of low cost.

Key concepts: Sine wave, Pulse-width modulation, Sine, Rotor (electric), Control theory (sociology), Hall effect sensor, Amplitude, Phase (matter)

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