论文信息 - Control method for harmonic voltage injection to achieve noise reduction in position-sensorless control of permanent-magnet synchronous motors at low speeds

Control method for harmonic voltage injection to achieve noise reduction in position-sensorless control of permanent-magnet synchronous motors at low speeds

In this study, we examine the relationship between harmonic voltage injection, acoustic noise, and position estimation performance in a PMSM when a position-sensorless control method involving harmonic voltage injection is used at low speeds. Further, we propose a novel control method for voltage injection; this method can be used to reduce acoustic noise in the motor. The proposed control method is verified by performing numerical simulations and carrying out experiments using a 4-pole, 2-kW, 2100-rpm IPMSM (interior permanent-magnet synchronous motor).

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