Application of High-power Frequency Conversion Technology in the Fracturing Pumping Equipment

Li, Lei; Zhang, Zengnian; Dong, F.; Zhi-xi, Wang; Li, Huachuan; Liu, Qimeng

doi:10.1109/itoec49072.2020.9141688

Cited by 2 publications

(1 citation statement)

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“…Sun Yuhan et al analyzed different frequency conversion operation scheduling forms and found that on the premise of meeting water supply demand, frequency conversion operation with parallel scheduling has a better energy-saving effect [18]. Li Xianghui further studied the speed range of variable frequency speed regulation and found that the application range of low-frequency speed regulation is wider [19]. Axial flow pumps have also been used in new fields such as fluidic rolling robots using voltage-driven oscillating liquid [20] and an eccentric actuator driven by stacked electrohydrodynamic pumps [21].…”

Section: Introductionmentioning

confidence: 99%

Transient Characteristic Analysis of Variable Frequency Speed Regulation of Axial Flow Pump

et al. 2022

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In order to explore the influence of different rotational acceleration on the transient internal and external flow characteristics of the axial flow pump and improve the performance of the pump, numerical simulations and experiments were used to analyze the variable frequency speed regulation characteristics of the axial flow pump. Taking three-dimensional turbulent numerical simulation as the main research method and CFX as the calculation platform, three variable frequency speed regulation methods were used to conduct transient numerical simulation; keep the acceleration constant, increased and decreased; and obtain the real-time pump performance curve and pressure characteristic curve. Uniform acceleration and deceleration with constant acceleration maintained the stable change and good stability of head and shaft power, and the pressure change was the most stable in the process. The acceleration and deceleration with decreasing acceleration ran most smoothly at high speed, and the frequency conversion effect was the best. At the same time, the transition to steady-state operation was also the most stable. The research in this paper can provide reference for the stable operation of variable frequency speed regulation of the axial flow pump.

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Section: Introductionmentioning

confidence: 99%