采煤機(jī)外文翻譯---電牽引采煤機(jī)的開關(guān)磁阻電動(dòng)機(jī)-在線瀏覽
2025-02-07 17:06本頁面
【正文】 signal of the Switched Reluctance motor 2 at the moment of ti1. The fuzzy logic algorithm could be expressed as follows, where, E is the fuzzy set of the deviation of the average DC supplied current of the power converter between the two Switched Reluctance motors, EC is the fuzzy set of the variation of the deviation of the average DC supplied current of the power converter between the two Switched Reluctance motors, and U is the fuzzy set of the increment of the duty ratio of the PWM signal of the Switched Reluctance motor 2. The continuous deviation of the average DC supplied current of the power converter between the two Switched Reluctance motors could be changed into the discrete amount at the interval [5, +5], based on the equations as follows, The continuous variation of the deviation of the average DC supplied current of the power converter between the two Switched Reluctance motors could also be changed into the discrete amount at the interval [5, +5], based on the equations as follows, The discrete increment of the duty ratio of PWM signal of the Switched Reluctance motor 2 at the interval [5, +5] could be changed into the continuous amount at the interval [%, +%], based on the equations as follows, There is a decision forms of the fuzzy logic algorithm based on the above principles, which was stored in the programme storage cell of the controller. While the difference of the distribution of the loads between the two Switched Reluctance motors could be got, the duty ratio of PWM signal of the Switched Reluctance motor 2 will be regulated based on the decision forms of the fuzzy logic algorithm and the distribution of the loads between the two Switched Reluctance motors could be balanced. IV. TESTED RESULTS The developed double Switched Reluctance motors parallel drive system prototype had been tested experimentally. Table I gives the tests results, where σ is the relative deviation of the average DC supplied current of the power converter in the Switched Reluctance motor 1, σ is the relative deviation of the average DC2 supplied current of the power converter in the Switched Reluctance motor 2, and, TABLE I. TESTS RESULTS OF PROTOTYPE It is shown that the relative deviation of the average DC supplied current of the power converter in the Switched Reluctance motor 1 and in the Switched Reluctance motor 2 is within 177。 shearer。10% Keywords switched reluctance。 英文原文 Switched Reluctance Motors Drive for the Electrical Traction in Shearer H. Chen College of Information and Electrical Engineering China University of Mining amp。 Technology, Xuzhou 221008, China Abstract—The paper presented the double Switched Reluctance motors parallel drive system for the electrical traction in shearer. The system ponents, such as the Switched Reluctance motor, the main circuit of the power converter and the controller, were described. The control strategies of the closedloop rotor speed control with PI algorithm and balancing the distribution of the loads with fuzzy logic algorithm were given. The tests results were also presented. It is shown that the relative deviation of the average DC supplied current of the power
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