Sensorless Control of PM Synchronous Motors in the Whole Speed Range Including Standstill Using a Combined INFORM/EMF Model

Schrödl, Manfred; Hofer, Matthias; Staffler, Wolfgang

doi:10.1109/epepemc.2006.4778690

Cited by 27 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, a method called INFORM has been studied to detect pulse current variation according to active voltage vectors; this method makes possible realization of low‐speed position estimation using only voltage outputted through conventional sinusoidal modulation, without applying high‐frequency voltage, which is useful for noise reduction 14–16 . However, in this case, accuracy of magnetic pole position detection heavily depends on magnitude of saliency, inductance ratio with respect to DC voltage, and duration of current change detection.…”

Section: Introductionmentioning

confidence: 99%

Improvement of low‐speed sensorless control with multi‐layer neural network

Maekawa

Tanaka

2022

Electrical Engineering Japan

View full text Add to dashboard Cite

In recent years, there has been an increasing demand for position sensorless control in Permanent Magnet Synchronous Motor (PMSM) drives, and various methods have been studied. Switching noise is a problem in the low‐speed sensorless control method that uses the current slope during PWM. Furthermore, another problem is that the inductance does not appear in a sinusoidal distribution owing to magnetic saturation. In this paper, we improve the sensorless control method that estimates the position from the current slope during PWM, which is greatly affected by switching. Additionally, we build a multi‐layer neural network (NN) that directly estimates the position signals by learning a large amount of current data, and verify the driving results in the low‐speed range when the learned NN is incorporated into real‐time control.

show abstract

Section: Introductionmentioning

confidence: 99%

Improvement of low‐speed sensorless control with multi‐layer neural network

Maekawa

Tanaka

2022

Electrical Engineering Japan

View full text Add to dashboard Cite

show abstract

“…Open-loop estimators or closed-loop observers are used for motor position estimation. By exploiting the non-ideal property of motor to acquire position information, sensorless control is extended to low speed range even including zero [60]. The principle of open-loop calculation method is simple and has fast dynamic response.…”

Section: Categories Of Sensorless Control Methodsmentioning

confidence: 99%

Electrical driven winch control for on board deck machinery

Wu¹

View full text Add to dashboard Cite

I would like to express my sincere gratitude to all those who ever gave me a lot of help during the writing of this thesis. My deepest gratitude goes first and foremost to Professor Wang Youyi, my supervisor, for his constant encouragement and guidance. He has guided me in every stage of writing this thesis. This thesis could not have become its present form without his enlightening and consistent instructions. Secondly, I would like to deliver my heartfelt gratitude to Dr. Shawn Liu, who gave me this chance to do this thesis. During these times, he gave me a lot of instructions on directions of this thesis and also provided some important advises on this thesis. I am also greatly indebted to the researcher at Epsil@ntu: Dr. Niu Li, who have instructed and helped me a lot in the past several months. He always welcomed me to consult questions at anytime and gave me very useful suggestions on my work. Finally my thanks would go to my beloved family and friends for their great confidence and loving considerations in me all through these years. I also owe my sincere gratitude to my fellow classmates and my friends who gave me their time and help in listening to me and helping me work out my problems during the difficult times. mooring. The marine winch market was dominated by hydraulic systems and there is a trend to be replaced by more efficient electrical drive system. For both anchoring and mooring control, full load torque is required through the entire speed range including zero speed operation. This poses a challenge for the inverter driven motor control, especially when there is no speed or position sensor. This thesis aims to develop advanced control algorithms of permanent magnet (PM) machine including direct torque control (DTC) and sensorless control for marine winch application. In this thesis, direct torque control, as a new type of high-performance ac driving system after vector control technique, is mainly concerned. Furthermore, since the traditional switch-table based DTC ac motor drive is usually affected by the torque ripple problem and steady-state error problem in torque, this thesis introduced a modified 12-sector DTC control method. The subsystems of traditional DTC system and modified DTC system for permanent magnet synchronous machine (PMSM) are modeled and designed in PSIM software. Then the simulation models of the above two control strategies are also established. Simulation research is conducted and the results are corresponding with theory analysis: the improved system has good dynamic and static performance; less flux and torque ripple especially in the low speed range. The second part of this thesis is to realize sensorless control of DTC control system. Considered the actual situation on board, different methods for high-speed range and lowspeed range are discussed. The rotating high frequency (hf) voltage signal injection as lowspeed sensorless control method is good for its simplicity and better tracking accuracy, while the back-EMF integral as high-speed method is suitable for its ...

show abstract

Self-sensing control of permanent-magnet synchronous machines with reluctance and saturation effects using high-frequency signal injection

Paulus

Gotting

2013

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

View full text Add to dashboard Cite

Sensorless Control of PM Synchronous Motors in the Whole Speed Range Including Standstill Using a Combined INFORM/EMF Model

Cited by 27 publications

References 6 publications

Improvement of low‐speed sensorless control with multi‐layer neural network

Improvement of low‐speed sensorless control with multi‐layer neural network

Electrical driven winch control for on board deck machinery

Self-sensing control of permanent-magnet synchronous machines with reluctance and saturation effects using high-frequency signal injection

Contact Info

Product

Resources

About