Vector Control of Interior Permanent Magnet Synchronous Motor Using Non-Singular Terminal Sliding Mode Control
- Title
- Vector Control of Interior Permanent Magnet Synchronous Motor Using Non-Singular Terminal Sliding Mode Control
- Other Titles
- 매입형 영구자석 동기전동기의 비특이 터미널 슬라이딩 모드 제어를 이용한 벡터제어 기법 연구
- Author
- 김경환
- Alternative Author(s)
- Kim Kyung Hwan
- Advisor(s)
- 이주
- Issue Date
- 2023. 2
- Publisher
- 한양대학교
- Degree
- Master
- Abstract
- Recently, as interest in electric vehicles has increased, a lot of research has been
conducted on interior permanent magnet synchronous motors (IPMSM), which have high
power density and are capable of high-speed operation. In the case of a general IPMSM
control system, a PI controller is mainly used, but the gain of the PI controller is greatly
affected by the motor parameters. In particular, in the case of IPMSM, it is designed to have
a large salient polarity for high-speed operation, which can increase parameter uncertainty
due to magnetic flux saturation. Therefore, in order to secure the robustness of the controller,
a control method such as sliding mode control (SMC) is being studied.
In studies applying existing SMC, various types of SMC such as terminal SMC
(TSMC), non-singular terminal SMC (NTSMC), and super-twisting SMC (STSMC) are
being studied to ensure finite time reachability. In this paper, a speed controller was
designed to ensure finite time reachability of the sliding surface and state using NTSMC.
In the process of designing the speed controller, the robustness of the system could not be
guaranteed due to the uncertainty about the disturbance. Therefore, to ensure the robustness
of the system, a disturbance observer was designed to ensure the robustness of the system.
In addition, the current vector control algorithm for IPMSM for torque improvement and
high-speed operation is also applied. Based on the torque command obtained from NTSMC,
an algorithm for selecting a current vector according to the speed command of IPMSM was
implemented.
Finally, to verify the control system (NTSMC + disturbance observer + current vector
algorithm) proposed in this paper, a control system was implemented using
MATLAB/Simulink. The effectiveness of the proposed control system was verified by
comparing the control performance of the existing PI controller and SMC.
- URI
- http://hanyang.dcollection.net/common/orgView/200000653222https://repository.hanyang.ac.kr/handle/20.500.11754/179864
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > ELECTRICAL ENGINEERING(전기공학과) > Theses (Master)
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