scholarly journals A Novel Method for Harmonic Current Injection with Sensor Supported Adaptation on Permanent Magnet Synchronous Machines

Machines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 139
Author(s):  
Matthias Vollat ◽  
Dominik Krahe ◽  
Frank Gauterin
Keyword(s):  
Permanent Magnet ◽  
Current Injection ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machine ◽  
Permanent Magnet Synchronous Machines ◽  
Harmonic Current ◽  
Harmonic Currents ◽  
Sensor Signals ◽  
Novel Method ◽  
Higher Harmonic

To reduce torque oscillations in electric motors, harmonic current injection (HCI) has been used in industry for some time. For this purpose, higher harmonic currents calculated in advance are injected into the machine. Since the general conditions for the machine can change during its life cycle, this article presents a method that makes it possible to change the parameters of HCI during operation. For this purpose, sensor signals are used to detect the reaction of the electric motor to small variations of the HCI parameters. The knowledge gained in this way is used to make further suitable variations. FEM simulations were used to verify the effectiveness of the approach. The results show that the algorithm can independently optimize the HCI parameters during runtime and reduces the amplitude of the 6th harmonic in the torque by 87% for a permanent magnet synchronous machine.

scholarly journals Optimal Third-Harmonic Current Injection for Asymmetrical Multiphase Permanent Magnet Synchronous Machines

2021 ◽  
Vol 68 (4) ◽  
pp. 2772-2783 ◽  
Author(s):  
Andrea Cervone ◽  
Marko Slunjski ◽  
Emil Levi ◽  
Gianluca Brando
Keyword(s):  
Permanent Magnet ◽  
Current Injection ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machines ◽  
Harmonic Current ◽  
Third Harmonic

scholarly journals Torque ripple suppression of permanent magnet synchronous machines by minimal harmonic current injection

2019 ◽  
Vol 12 (6) ◽  
pp. 1368-1375 ◽  
Author(s):  
Luocheng Yan ◽  
Yong Liao ◽  
Hao Lin ◽  
Jun Sun
Keyword(s):  
Permanent Magnet ◽  
Torque Ripple ◽  
Current Injection ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machines ◽  
Harmonic Current

Voltage THD Improvement for an Outer Rotor Permanent Magnet Synchronous Machine

2013 ◽  
Vol 14 (5) ◽  
pp. 459-465 ◽  
Author(s):  
Javier de la Cruz ◽  
Juan M. Ramirez ◽  
Luis Leyva
Keyword(s):  
Permanent Magnet ◽  
Harmonic Distortion ◽  
Synchronous Machines ◽  
Design Parameters ◽  
Permanent Magnet Synchronous Machine ◽  
Permanent Magnet Synchronous Machines ◽  
Skew Angle ◽  
The Core ◽  
Outer Rotor ◽  
Rotor Poles

Abstract This article deals with the design of an outer rotor Permanent Magnet Synchronous Machines (PMSM) driven by wind turbines. The Voltage Total Harmonic Distortion (VTHD) is especially addressed, under design parameters’ handling, i.e., the geometry of the stator, the polar arc percentage, the air gap, the skew angle in rotor poles, the pole length and the core steel class. Seventy-six cases are simulated and the results provide information useful for designing this kind of machines. The study is conducted on a 5 kW PMSM.

scholarly journals Enhancement of Permanent-Magnet Synchronous Machines Torque Estimation Using Pulsating High-Frequency Current Injection

2020 ◽  
Vol 56 (1) ◽  
pp. 358-366 ◽  
Author(s):  
Maria Martinez ◽  
David Reigosa ◽  
Daniel Fernandez ◽  
Juan M. Guerrero ◽  
Fernando Briz
Keyword(s):  
Permanent Magnet ◽  
High Frequency ◽  
Current Injection ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machines ◽  
High Frequency Current ◽  
Torque Estimation ◽  
Frequency Current
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