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Transactions: WSEAS TRANSACTIONS ON ELECTRONICS
Transactions ID Number: 31-291
Full Name: Chi Chieh Tsung
Position: Associate Professor
Age: ON
Sex: Male
Address: No. 1, Chieh Shou N. Rd., Changhua City 500, Taiwan, R.O.C
Country: TAIWAN
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E-mail address: jih@cc.ctu.edu.tw
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Title of the Paper: A High Performance AC Permanent Magnet Contactor
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Number of paper pages: 10
Abstract: This paper describes a simple colenoid actuator mechanism and its electronic control circuit (ECU) that allows new ac permanent magnet (PM) contactor to perform the making and breaking course without critical disadvantages imposed by the previous ac electromagnetic (EM) contactor, such that consumes much energy to hold armature, produces noise at lower voltage and their coils are easy to be burnt due to continual energization, and incurs abnormal dropouts owing to voltage sag. First, the control circuit of colenoid actuator is derived and then experimental tests are carried out to verify the effectiveness of the control circuit. Then, a theoretical model is built and the dynamic characteristic of the proposed colenoid actuator is identified. Finally, the fast transition and energy saving of the proposed ac PM contactor are demonstrated by experimental and simulation approaches.
Keywords: Electronic control unit (ECU), colenoid actuator, ac PM contactor, ac EM contactor, energy saving, voltage sag
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