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Research on Energy Conservation Technology of Variable Frequency of Oil Transfer Pump

Author: ChenDianJun
Tutor: YaoJianHong；XueGuangHui
School: Daqing Petroleum Institute
Course: Electrical Engineering and Automation
Keywords: oil transfer pump variable frequency energy conservation
CLC: TM921.51
Type: Master's thesis
Year: 2009
Downloads: 211
Quote: 2
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Abstract


China is a country of the production and consumption of energy. Low energy resources per capita amount、uneven distribution、difficult exploitation, ect. resulted in recent years in China’s energy shortage problem increasingly intensified. Thus the phenomenon such as power brownouts caused serious influence our lives. Saving energy sustainable development has become the important way.In the field of storage and transportation system, due to high pressure differentials of pump pipe、motor speed does not adjusted in variable-operating condition. for these reasons ,them cause inefficiency of oil transfer pump and the power consumption. But because of the special oil transmission system, only by changing the export pump or the right model motor to realize the characteristic matching between designing is impossble.Based on the above reasons, Using the high voltage inverter is proposed in this article to daqing oil storage and transportation system in main oil station and the pipeline of power facilities (oil transfer pump) speed control. Through frequency conversion power to achieve the goal, the energy consumption, research and application of frequency conversion speed pump efficiency changes and energy-saving effect.Energy conservation technology of variable frequency of oil transfer pump is an approach to reduce wasted energy and pollution discharge, using frequency conversion device to alter the frequency of power supply source, then to change rotational speed of asynchronous motor .In the process of research, Through the analysis of frequency conversion technology principle, Propose pipe pressure for basic signal to adjust the pump units operating plan. Oil systems in oilfield production is an important link in the project, and it does not shut down. According to these characteristic, propose variable speed device switch, the work should have variable frequency devices operating frequency conversion control, optimizing the parameters of the automatic protection device, the field alarm, data statistic analysis technology. A design multi-power unit series voltage source inverter multilevel structure scheme. The scheme has higher reliability, the harmonic pollution in small, power factor and high efficiency, has the advantages of bypass protection. In south1 oil depot and north oil depot and qingha oil transport department,we do experiments point on single pump running,double pump and three pump parallel connection running. Comparing with the former condition which did not used the variable frequency technology, we can save electricity 35 to 40% .

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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electric drive ( electric drive ) > Control system > Variable frequency control system
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