Sensorless control algorithm of BLDC motors with current model

2013 ◽  
Author(s):  
Je-Wook Park ◽  
Woo-Young Ahn ◽  
Jang-Mok Kim ◽  
Byung-Moon Han
Keyword(s):  
Control Algorithm ◽  
Sensorless Control ◽  
Current Model

Hybrid-Electric Turbocharger and High-Speed SiC Variable-Frequency Drive Using Sensorless Control Algorithm

2018 ◽  
Vol 140 (12) ◽  
Author(s):  
Andrew L. Carpenter ◽  
Troy L. Beechner ◽  
Brian E. Tews ◽  
Paul E. Yelvington
Keyword(s):  
High Temperature ◽  
Control Algorithm ◽  
Sensorless Control ◽  
Speed Control ◽  
Test Stand ◽  
Switching Frequency ◽  
Variable Frequency ◽  
Variable Frequency Drive ◽  
High Switching Frequency ◽  
Hybrid Electric

Electrically assisted engine boosting systems lend themselves to better throttle response, wider effective operating ranges, and can provide the ability to extract excess energy during deceleration and high-load events (and store it in a vehicle's onboard batteries). This can lead to better overall vehicle performance, emissions, and efficiency while allowing for further engine downsizing and increased power density. In this research effort, a hybrid-electric turbocharger, variable-frequency drive (VFD), and novel sensorless control algorithm were developed. An 11 kW permanent-magnet (PM) machine was coupled to a commercial turbocharger via an in-line, bolt-on housing attached to the compressor inlet. A high-efficiency, high-temperature VFD, consisting of custom control and power electronics, was also developed. The VFD uses SiC MOSFETS to achieve high-switching frequency and can be cooled using an existing engine coolant loop operating at up to 105 °C at an efficiency greater than 98%. A digital sliding mode-observer sensorless speed control algorithm was created to command and regulate speed and achieved ramp rates of over 68,000 rpm/s. A two-machine benchtop motor/generator test stand was constructed for initial testing and tuning of the VFD and sensorless control algorithm. A gas blow-down test stand was constructed to test the mechanical operation of the hybrid-electric turbocharger and speed control using the VFD. In addition, a liquid-pump cart was assembled for high-temperature testing of the VFD. Initial on-engine testing is planned for later this year. This paper intends to present a design overview of the in-line, hybrid-electric device, VFD, and performance characterization of the electronics and sensorless control algorithm.

Back EMF Sensorless-Control Algorithm for High-Dynamic Performance PMSM

2010 ◽  
Vol 57 (6) ◽  
pp. 2092-2100 ◽  
Author(s):  
Fabio Genduso ◽  
Rosario Miceli ◽  
Cosimo Rando ◽  
Giuseppe Ricco Galluzzo
Keyword(s):  
Control Algorithm ◽  
Sensorless Control ◽  
Dynamic Performance ◽  
High Dynamic

scholarly journals Performance Improvement of a PMSM Sensorless Control Algorithm Using a Stator Resistance Error Compensator in the Low Speed Region

2010 ◽  
Vol 10 (5) ◽  
pp. 485-490 ◽  
Author(s):  
Nung-Seo Park ◽  
Min-Ho Jang ◽  
Jee-Sang Lee ◽  
Keum-Shik Hong ◽  
Jang-Mok Kim
Keyword(s):  
Performance Improvement ◽  
Control Algorithm ◽  
Sensorless Control ◽  
Low Speed ◽  
Stator Resistance
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