Regenerative Electric Power Treatment of Servo Motor Using a Chopper and Electrolytic Capacitor
●Introduction
■Energy conservation has become a critical issue in recent years for the purpose of preserving the earth's environment. One of the methods of saving energy is motor power regenerative electric power through the power supply, but this involves complicated control and also higher cost. Another widely known method is regeneration through resistance, which is simple to control and cheap, but has no means of saving energy and suffers a large heat dissipation. A further regeneration method is to simply increase the capacity of the smoothing capacitor of the motor control device. However, this method requires an extremely large capacity smoothing capacitor, and also requires a rush current prevention circuit and increased capacitance in the discharging circuit.
■This report proposes a new method of handling regenerative electric power, in which a separate electrolytic capacitor is used in addition to the smoothing capacitor, the charging and discharging of which are controlled by a power converter. We have confirmed satisfactory operation through our experiments and obtained good results as reported here.
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Technical Documentation |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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Nov 1997 |
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1.3 MB |
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