锻压技术

伺服压力机电容储能系统设计与实验研究

英文标题：Design and experimental research on capacitor energy storage system for servo press

作者：余俊张李超史玉升熊海洋王华

分类号：TG38；TP29

出版年,卷(期):页码：2014,39(11):47-51

摘要：

针对伺服压力机电机再生制动时产生的电能通过制动电阻转变为热能耗散掉的问题，在自主研发的2000 kN曲柄连杆伺服压力机基础上，设计并实现了1套电容储能系统，并给出其具体技术指标。系统采用日本尼吉康NY系列的铝电解电容，单个电容器的容量为12 mF，耐压为450 V，通过串并联的方式，250个电容器总容量为750 mF，总耐压为900 V。电容储能系统支持预充电、正常、过压放电、剩余能量释放4种工作状态，运行过程中充放电电压、电流和温度信号等参数接入采集模块，然后通过Profibus-DP现场总线与主控制器Simotion相连。实验结果表明：电容储能系统能量交换响应速度快，减小了压力机工作行程瞬时大电流对电网的冲击，降低了整流单元的容量要求，达到了系统设计技术指标。

For the problem that electric energy generated through regenerative braking of servo press motor was dissipated into heat energy by braking resistor, a capacitor energy storage system was designed and implemented based on self-developed 2000 kN crank servo press and technical specifications were given. Aluminum electrolytic capacitors of Japan Nichicon NY series were used in the system. Because of the capacitance 12 mF and the rated voltage 450 V of single capacitor, the overall capacitance 750 mF and the overall rated voltage 900 V can be given by 250 capacitors series parallel connection mode. Four kinds of working conditions were supported for the capacitor energy storage system such as precharge, normal, overvoltage discharge and releasing the remaining energy. The signals of charged and discharged voltage, current and temperature parameters etc. were connected into an acquisition module, which was connected to the main controller Simotion by Profibus-DP fieldbus. The experimental result indicates that the exchanged response of this system is so fast as to reduce the impact of instantaneous large current on power grid and capacity requirements of rectifier during the servo press working, and the designed technical specifications are achieved.

基金项目：

国家数控重大专项资助项目 (2012ZX04001-012)

余俊（1987-），男，博士研究生张李超（1975-），男，博士，副教授

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