| Title |
Position Error Compensation at the Sensorless Control of PMSM using Rectangular 2 Hall Sensors |
| Authors |
Kyung-Min Kim ; Jung-Hyo Lee ; Chun-Hwan Hwang ; Chung-Yuen Won |
| Keywords |
Hall Sensor; Permanent Magnet Synchronous Motor; Sensorless Control; Position Error |
| Abstract |
This paper proposes the PLL method using positive sequence voltage which is estimated by full-order state observer to find an accurate phase angle under the condition of unbalanced utility voltage. The proposed method uses the full-order state observer instead of existing method(APF All Pass Filter) to find a positive sequence of a utility voltage and this proposed method improves transient response of an estimated phase angle when a three-phase utility voltage becomes unbalanced. To compare proposed method withexisting method, experiments have been done for a phase angle detection of utility voltage when a three-phase utility voltage becomes unbalanced. Their results show that transient state response of proposed method is improved. |