In order to solve the problem of high energy consumption of a forging hydraulic press ’ electro-hydraulic pro-portional valve-controlled system during its fast forging process , a novel pump-valve compound control principle was proposed based on variable frequency motor regulation .The mathematic model of a pump-valve compound hydraulic drive system was established , and a pump-valve compound control strategy with the feature of combining the dis-placement closed-loop control with the load sensitive control was given .Then, an experiment was carried out to val-idate the strategy .The experimental results approved that the forging frequency was up to 60 times per minute , and the position precision was about 0.5 mm for the pump-valve compound control system of a 0.6 MN fast forging hy-draulic press in comparison with traditional electro-hydraulic proportional valve-controlled system , and the installed power was reduced by 18.6%, and the transmission efficiency was increased by 25%.Furthermore, the influences of the pressure difference between pump outlet and cylinder and the forging frequency on the control performance were analyzed through the experiment .%针对锻造液压机电液比例阀控系统快锻工况时传动效率低下的问题，提出了一种基于变频调节的快锻液压机泵阀复合控制原理。建立了其数学模型，给出了位移闭环控制和泵口压力负载敏感控制相结合的泵阀复合控制策略，并对其进行了实验研究。实验结果表明，基于泵阀复合控制的0．6 MN液压机快锻系统，理想的快锻频次能够达到60次／分钟，位置控制精度为0．5 mm。与传统的电液比例阀控系统相比，装机功率降低至18．6％，传动效率提高了25％。并分析了泵口与液压缸工作腔压差Δp大小和锻造频率f变化对其控制特性的影响规律。
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