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氢氮比自控系统采用动态补偿办法,可解决油田气压力波动与被控对象滞后问题。本系统经过长时间生产运行收到了显著的效果。一、氢氮比自控系统补偿原理图1为前馈补偿方框图。图中W_q(S)——前馈调节器传递函数; W_G(S)——油田气干扰通道传递函数; W_TS)——气动薄膜调节阀传递函数; W_F(S)——副调节器传递函数。根据完全补偿时,P的干扰将全部抵销,于是有 PW_qW_TW_Z+PW_G=0
The hydrogen-nitrogen ratio automatic control system adopts the dynamic compensation method to solve the problem of gas pressure fluctuation and controlled object lag in the oil field. The system received a significant effect after a long period of production operation. First, hydrogen-nitrogen ratio control system compensation principle Figure 1 for the feed-forward compensation block diagram. Figure W_q (S) - feedforward regulator transfer function; W_G (S) - gas field disturbance channel transfer function; W_TS) - pneumatic membrane valve transfer function; W_F (S) . According to the complete compensation, P’s interference will be fully offset, so there PW_qW_TW_Z + PW_G = 0