2018 Fiscal Year Annual Research Report
High-efficiency Robust Control Technology for Magnetic Bearing and Its Vibration Suppression
| Project/Area Number |
17F17807
|
|---|
| Research Institution | Tokyo University of Technology |
|---|
Principal Investigator |
福島 E.文彦 東京工科大学, 工学部, 教授 (80262301)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
HUANG GANG 東京工科大学, 工学部, 外国人特別研究員
|
|---|
| Project Period (FY) |
2017-11-10 – 2020-03-31
|
| Keywords | magnetic suspension / vibration suppression |
|---|
| Outline of Annual Research Achievements |
This research targets at permanent magnet motor drive systems of 1~3MW/15000~35000rpm class, and study control method of high-speed permanent magnet direct-drive systems and magnetic bearing.
This year, we progressed the study in the following topics: (1) Build of the permanent magnet direct-drive and magnetic suspension bearing control system mathematical model, and simulation and analysis of the basic control schemes; (2)Design of the bearing control scheme, for high speed, high precision and high reliability control, featuring repetitive control scheme and gas control scheme, etc.; (3) Design of a sensorless control system for the motor drive,with vibration control and fault diagnosis system.(4) Design of a scaled mechanical prototype for experimental evaluation.
We published a paper presenting a new estimation method of sensor faults and unknown disturbance in current measurement circuits for an interior PMSM drive system. In this paper, the system model, which contains faults of virtual sensors for ab axis currents and the unknown disturbance, is first constructed. Then, the model is transformed into a model with actuator faults by a first-order low-pass filter. Moreover, the faults and disturbance in the model are decoupled by coordinate transformation. And sliding-mode observers are designed based on the new decoupled system. Single and simultaneous faults of current sensors and an unknown disturbance are accurately estimated based on sliding-mode equivalent control methodology. An experiment is carried out to demonstrate the validity and effectiveness of the method.
|
| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
This year, besides conducting investigation visits to other Universities and exchanged knowledge about related research topics, we presented our research results at an international conference (ISIE2018), and also had an academic journal paper published (Measurement, Vol.137,pp.580-587).
|
| Strategy for Future Research Activity |
We will continue theoretical and practical study in the following topics: (1) Build of the permanent magnet direct-drive and magnetic suspension bearing control system mathematical model, and simulation and analysis of the basic control schemes; (2)Design of the bearing control scheme, for high speed, high precision and high reliability control, featuring repetitive control scheme and gas control scheme, etc.; (3) Design of a sensorless control system for the motor drive, with vibration control and fault diagnosis system.(4) Design of a scaled mechanical prototype for experimental evaluation.
We expected to present the research results in academic conferences and also publish in academic journals.
|
Research Products
(2 results)
