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结合抽油机的运行工况和油田生产实际，探讨了电压跟踪负载变化的调压节能控制系统和变频变压节能控制系统及应用问题。
Combined with the operating conditions of pumping unit and the actual production of oilfields, the voltage-controlled energy-saving control system and the variable-frequency variable-voltage energy-saving control system and its application problems are discussed.