Direct flux control – sensorless control method of PMSM for all speeds – basics and constraints

Autor: Peter Thiemann, Tobias Muller, Arfan Ghani, Chan H. See, Akram Bati
Rok vydání: 2017
Předmět:
Stator
Computer science
Culture and Communities
Internet of Things
621.38 Electronics & Communications engineering
02 engineering and technology
Optimisation and learning
permanent magnet synchronous machines
01 natural sciences
Signal
TK Electrical engineering. Electronics Nuclear engineering
law.invention
Control theory
law
Position (vector)
PMSM
0202 electrical engineering
electronic engineering
information engineering
Point (geometry)
Electrical and Electronic Engineering
Sensors
Rotor (electric)
stator inductivity
020208 electrical & electronic engineering
010401 analytical chemistry
Work (physics)
Control engineering
Acoustics
Flux linkage
AI and Technologies
0104 chemical sciences
back-electro motive force
Magnet
flux linkage signal
direct flux control-sensorless control method
Smart cities
Engineering Research Group
Zdroj: Electronics Letters. 53:1110-1111
ISSN: 1350-911X
0013-5194
Popis: The limitations of sensorless control of permanent magnet synchronous machines (PMSMs) are discussed and a viable solution is proposed. The main concept of sensorless control of drives relies on additional information given by the machine during its normal operation. This information provided by the machine is essentially the back-electro motive force and the variance of the stator inductivity, which are dependent on the rotor position. Several approaches and methods have discussed these problems, and in most cases they are not avoidable and that some methods work better on certain speeds of the drives. The direct flux control (DFC) method to combat the above problems at all speeds is presented. The flux linkage signal which contains the necessary information about the rotor position can be measured between the neutral point of a PMSM and an artificial one. The mathematical derivation and the observations from the experiments show that this signal contains a second and a fourth harmonic, which can be used to calculate the rotor position. Furthermore, the limitations of implementing DFC are also addressed.
Databáze: OpenAIRE
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