Paper Info
Title
Sensorless Starting Control Of Permanent Magnet Synchronous Motors With Step-Up Transformer For Downhole Electric Drilling
Abstract
Downhole electric drilling, with a motor driving the drill bit to rotate, has been an emerging trend for oil/gas drilling industry. This paper proposes an effective starting strategy for permanent magnet synchronous motors with step-up transformer, sin-wave filter and long cables for the downhole electric drilling applications. Due to the saturation effect of the transformer in low frequency region, the traditional sensorless vector control and open V/f control may fail during the startup process of the motor. The proposed starting strategy is based on a modified I-f velocity open loop control, which supplies sufficient starting torque, and the saturation effect of the transformer is effectively mitigated. A filter capacitance current compensation method is proposed to modify the inverter current references. The frequency stablization loop independent on the changeful system parameters is designed to provide stability control to mitigate speed oscillatory or motor stoppage. Finally, the feasibility and effectiveness of the proposed control strategy is verified through simulation results with Matlab/Simulink.
Year
DOI
Venue
2018
10.1109/IECON.2018.8591852
IECON 2018 - 44TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
Keywords
Field
DocType
Sensorless, Permanent magnet synchronous motors (PMSM), Step-up Transformer, I-f control, Downhole electric drilling
Inverter,Vector control,Torque,Synchronous motor,Control theory,Drill bit,Transformer,Electronic stability control,Engineering,Open-loop controller
Conference
ISSN
Citations 
PageRank 
1553-572X
0
0.34
References 
Authors
0
10
Name
Order
Citations
PageRank
Zhixiong Li101.01
Quanli Zhang200.34
Huaidong Luo300.34
hongwei wang4368.68
Jin Wang583.50
Fei Han600.34
Aiguo Wang7657.35
Xicai Liu800.34
Xiaoming Yu900.34
Libing Zhou1001.01