International Conference
| Hexa-Active Vector Pulse Width Modulation in IPMSM Sensorless Drives Using Single DC-Link Current Sensor | |
|---|---|
| Year | 2023 |
| Month | August |
| Journal | 2023 IEEE International Symposium on Sensorless Control for Electrical Drives (SLED) |
| Author | Byung Ryang Park; Gyu Cheol Lim; Yongsu Han; Jung-Ik Ha |
| Link |
http://ieeexplore.ieee.org/abstract/document/10261368
23회 연결
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In cost-effective applications, the position sensorless drive using single current sensor (SD-SCS) is widely utilized due to the minimized number of sensors. However, the drive performance of the saliency-based SD-SCS is deteriorated due to the limited condition of phase current reconstruction (PCR) and the interference of voltage injection for both PCR and saliency-based position estimation. Therefore, this paper proposes an enhanced position estimation scheme based on the unified carrier-based injection. First, the error in injected voltage is reduced by using the unified carrier-based injection for PCR and saliency-based position estimation. Next, the motor parameter dependency in position estimation is eliminated by utilizing the phase current derivative measurements at each of the six active vectors. To verify the feasibility of the proposed method, the simulation and experimental results are presented about the enhanced drive performance of SD-SCS. |
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