Paper Info
Title
Design and implementation of a dual PWM frequency converter used in beam pumping unit for energy saving
Abstract
Improving energy efficiency is very important in solving the problem of energy crisis and environmental problems. Beam pumping units consume significant amount of electricity because they are widely used but usually have relative low efficiency especially of the induction motor in petroleum exploitation. This paper first analyzes the beam pumping unit's motion law in petroleum exploitation, and derives the up slowly and down fast (USDF) operation principle of the suspension point to improve its efficiency. For the practical application, a dual PWM frequency converter for a beam pumping unit with a 45kW induction motor is developed and field tested. The unit is capable of starting the motor softly, operating at near unity power factor, providing near sinusoid current and emitting low THD in grid side, making power flows in dual direction; and capable of adjusting frequency smoothly in the range of 5Hz to 75Hz in motor side. Thorough consideration on the protections schemes and special designs in framework make it working reliably in atrocious environment. Field operations results show significant energy savings of the proposed design.
Year
DOI
Venue
2013
10.1109/TIA.2014.2304621
IEEE Transactions on Industry Applications
Keywords
Field
DocType
Frequency conversion,Laser excitation,Voltage control,Pulse width modulation,Reactive power,Induction motors,Frequency control
Energy conservation,Induction motor,Total harmonic distortion,Electricity,Control theory,Efficient energy use,Power factor,Pulse-width modulation,Beam (structure),Engineering,Electrical engineering
Conference
Volume
Issue
ISSN
50
5
0093-9994
Citations 
PageRank 
References 
0
0.34
3
Authors
6
Name
Order
Citations
PageRank
Jiming Lu1126.69
Jin-Ping He2212.80
Chengxiong Mao31911.90
Weiwei Wu400.34
Dan Wang513.05
Weijen Lee600.34