Research on Pump-Controlled Servo Hydraulic Press and its Energy Consumption Experiments

Abstract:

A solution was proposed to reform the traditional hydraulic presses by the technology of pump-controlled servo hydraulic power: PMSM(Permanent magnet synchronous servo motor ) and fixed displacement pump replaced the traditional inductive motor and fixed displacement pump as the power unit ; the electromagnetic reversing system, the rapid cylinder and the prefill system were kept; displacement sensors, pressure sensors and a proportional relief valve were added to the hydraulic system. A deep drawing process was taken as an example to analyze the energy consumption by experiments. The results indicated that in the same conditions the pump-controlled servo hydraulic press reached more than 20% energy saving effect in comparison with the traditional hydraulic press and had higher power factor. The main reasons for energy saving are the PMSM has higher efficiency and power factor, and the overflow loss, the standby loss are decreased.

• Periodical: Advanced Materials Research (Volume 988)
• Pages: 590-596
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.988.590
• Online since: July 2014
• Authors: Hong Bo Zheng*, You Song Sun
• Keywords: Energy Consumption, Hydraulic Press, Pump-Controlled, Servo Motor

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