Switching Frequency Signal-Injection Sensorless Control in Dual Three-Phase PMSM Robust to Nonideal Characteristics of Inverter System
- Resource Type
- Periodical
- Authors
- Lee, Y.; Sul, S.
- Source
- IEEE Transactions on Power Electronics IEEE Trans. Power Electron. Power Electronics, IEEE Transactions on. 39(7):8540-8552 Jul, 2024
- Subject
- Power, Energy and Industry Applications
Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
General Topics for Engineers
Nuclear Engineering
Signal Processing and Analysis
Transportation
Inverters
Observers
Switching frequency
Windings
Voltage
Sensorless control
Rotors
Current measurement noise
deadtime effects
dual three-phase permanent magnet synchronous motor (DPMSM)
finite element analysis (FEA)
mutual coupling inductance
signal-injection sensorless control (SISC)
- Language
- ISSN
- 0885-8993
1941-0107
This article mainly describes a signal-injection sensorless control (SISC) method whose injection frequency is the same as the inverter's switching frequency. It has been known that the switching frequency SISC is vulnerable to nonideal characteristics of the inverter system. In this article, the current measurement noise and the deadtime effects are considered as the nonideal factors. The two factors are identified with some analyses, and a hint for the mitigation is found in the dual three-phase permanent magnet synchronous motor (DPMSM) drive system. An asymmetric SISC method is proposed based on the hint; it implements the SISC differently in the two individual three-phase windings of the DPMSM. The method can conspicuously reduce the position estimation error due to the nonideal factors of the inverter system. During the descriptions, the mutual coupling inductance between the two three-phase windings is considered by using finite element analysis. The proposed method is verified in the experimental setup with a 1.7-kW DPMSM.