| Title |
Characteristics Analysis of DQ-axis Currents Control According to Estimated Angular Velocity Error of Single-phase Permanent Magnet Synchronous Motor |
| Authors |
Hyeon-Ah Jo ; So-Young Jun ; Seon-Hwan Hwang |
| DOI |
http://doi.org/10.5207/JIEIE.2023.37.6.075 |
| Keywords |
All-pass filter; Angulaor velocity error; DQ-axis currents; Second-order generalized integrator; Single-phase PMSM |
| Abstract |
This paper analyzes the current control characteristics using the virtual q-axis current generation technique when applying dq-axis currents control to a single-phase permanent magnet synchronous motor(SP-PMSM). In general, the synchronous reference frame dq-axis currents control is widely used in vector control of 3-phase AC motors and can be expanded to apply to current control of SP-PMSM. Therefore, in this paper, we apply representative techniques, which are the all-pass filter(APF) and second-order generalized integrator(SOGI), for generating a virtual q-axis current component for the dq-axis currents control of a SP-PMSM and examine its operating characteristics. In addition, when applying the virtual q-axis components, we investigate the current control characteristics according to the estimated angular velocity error due to sensorless operation of a SP-PMSM. As a result, the dq-axis current control technique was applied to the operation of the SP-PMSM, and the operation characteristics according to the generation of the virtual q-axis component and the estimated angular velocity error were verified through various experiments. |