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A CONTROL SYSTEM TO REALIZE INPUT POWER CHANGING ALONG WITH BOTH LOADS AND ROTATE SPEED BY AN INVERTER BRIDGE DRAGGING MANY SETS OF MOTORS
A CONTROL SYSTEM TO REALIZE INPUT POWER CHANGING ALONG WITH BOTH LOADS AND ROTATE SPEED BY AN INVERTER BRIDGE DRAGGING MANY SETS OF MOTORS
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机译:一种控制系统,通过逆变桥拖动许多电机,实现随着负载和转速的变化同时改变输入功率
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摘要
A control system to realize input power changing along with both loads and rotate speed by an inverter bridge dragging many sets of motors, is composed of a stator voltage regulating unit(1), a motor unit(2), a rotor speed control unit(3), an inverter bridge unit(4), a control drive unit(5) and a signal processing unit(6). By setting a power factor sensor, the phase voltage and phase current of the motor stator are acquired as a control signal to regulate the input power so as to make it change with loads. At the same time, by setting a voltage sensor and a current sensor, motor rotor phase voltage, rectifier output current, overvoltage protection current and chopper working current are acquired separately as a control signal to regulate the input power so as to make it change with the rotate speed, thus realizing input power changing along with both loads and rotate speed.
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