Peng Chen;Ruiqing Ma;Hao Bai;Zhe Chen;Shoujun Song
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引用次数: 0
Abstract
This article proposes an improved pulsating high-frequency (HF) voltage injection method to suppress the time delay for sensorless control of surface-mounted permanent magnet synchronous motor (SPMSM). First, the HF voltage is still injected into the estimated d-axis. However, the HF current demodulation is at the $\alpha \beta $ -axis, both the positive and negative sequence components of HF current are utilized for rotor position estimation, and the impact of system delay on position estimation is suppressed. Second, dual second-order generalized integrator (DSOGI)-based adaptive bandpass filters (BPFs) are proposed to eliminate the filtering delay in the HF current demodulation process, and the conventional BPF is removed. Finally, the experimental results verify that the time delay is suppressed and the accuracy of position estimation is improved significantly using the proposed method.
期刊介绍:
IEEE Transactions on Transportation Electrification is focused on components, sub-systems, systems, standards, and grid interface technologies related to power and energy conversion, propulsion, and actuation for all types of electrified vehicles including on-road, off-road, off-highway, and rail vehicles, airplanes, and ships.