作者: Wang Shidong , Fan Hongkang , Sun Mingguang , Wang Guo , Niu Xinming
DOI:
关键词: Back pressure 、 Control theory 、 Throttle 、 Wellhead 、 Mathematics 、 Control methods 、 Control effect 、 Degree (temperature)
摘要: The invention discloses a wellhead back pressure regulation and control method device. comprises the following steps of obtaining value an opening degree throttle valve in real time; respectively calculating deviation valve; when is greater than preset coarse regulating threshold value, controlling on basis so that reaches set smaller or equal to precision range value. has advantages perturbation-free switching realized; during switching, stable does not have perturbation. capabilities fast at great precise small are effect good; simplified; realization easy; stable.