摘  要：石油钻机在生产运行中经常出现突变负载，这类负载会造成动力机组轻载或重载，严重时甚至损坏机组轴承，而且使得动力机组的能耗大大增加。由于飞轮储能系统具有大功率充放电以及充放电次数无限制等优点，本文提出采用飞轮储能系统辅助石油钻机动力系统的负载调峰方案，并提出了应用于石油钻机的飞轮储能充放电优化控制策略，在动力机组轻载时多余能量储存于飞轮中，重载时飞轮释能，从而实现平抑负载波动的功能，同时节能效果显著。通过理论分析及仿真试验验证了在石油钻机上应用飞轮储能系统方案和控制策略的可行性和正确性，这也提高了动力机组的效率。
关键词：石油钻机；动力机组；突变负载；飞轮储能系统；负载调峰

Abstract:  Oil rig often runs under the mutations load in the production, which will result in a light or heavy power unit, even damage the unit bearings and increase the energy of the power unit. In  order  to  achieve the  function of stabilizing the  load fluctuation,  the  flywheel  energy  storage  system  (FESS)  assisted  drilling  rig power  system  scheme  is  adopted.  With the FESS′s characteristic of high power charging and discharging ability and the infinite charging and discharging times, the optimized control method of FESS was designed and applied for oil rig, in which the flywheel stored the excess energy in light load power unit and released when it was overloaded. The theoretical analysis and simulation verify that FESS applied in the oil rig is feasible, correct and can improve the efficiency of the power units.
Key words:  oil rig; power unit; mutation load; flywheel energy storage system; peak load