Abstract
SummaryContactor bounce has a serious impact on its electrical life and closed reliability in the process of closing the main circuit. Controlling the contact movement is one of the effective ways to reduce the bounce effect. In this paper, the contact movement characteristics are concerned directly. A big speed and small acceleration of contact are expected to complete the closure. The mathematical model of the circuit and the magnetic circuit are established, and the dynamic characteristics of the electromagnetic system are analyzed. The closed‐loop control system of contact motion characteristic based on speed feedback is constructed, and the speed tracking effect is improved effectively by fuzzy control. The experiment results showed that the control method proposed is correct, and the actual speed curve of the contact was consistent with the planned motion curve. The contact speed of the contact decreases obviously, which can achieve the goal of restraining the bounce of the contact.
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