Energy saving by reducing motor rating of sucker-rod pump systems

Energy industry can make significant savings by reducing electric motors ratings of the popular Sucker-Rod Pump (SRP) systems. This be achieved application robust controllers, which are fully integrated with SRP In this work we have developed, modelled and analysed such systems, specifically examining two control schemes open- closed-loop controllers. The open loop scheme employs a genetic algorithm optimizing frequency in order to minimize fluctuations motor output power. approach results peak torque consequently decreases required rating 20%. However, relies on complex model electromechanical system, it is computationally expensive. second proposed control, first its kind for much faster robust. It allows reduce further 30% that open-loop scheme, save $246 M through choosing smaller $39 per year inner loss.