Measurement method based on quadrature axis reactance measurement device of permanent-magnet synchronous motor
A permanent magnet synchronous motor and quadrature-axis reactance technology, which is used in measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve the problems of cumbersome measurement process, low measurement accuracy, and manual reading, etc. Measurement accuracy, simple method, variable power factor effect
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[0023] The present invention will be further described below in conjunction with accompanying drawing.
[0024] Such as figure 1 As shown, a permanent magnet synchronous motor quadrature-axis reactance measurement device includes a stator three-phase AC power supply 1, a three-phase power switch 2, a stator power converter 3, a current sampling circuit 6, a voltage sampling circuit 7, and an incremental speed encoder 8, permanent magnet synchronous motor 9, DSP controller 10, current sensor 4 for detecting the three-phase current value of the permanent magnet synchronous motor stator and voltage sensor 5 for detecting the stator line voltage value of the permanent magnet synchronous motor, and the stator power conversion The converter 3 is connected to the stator winding of the permanent magnet synchronous machine, one end of the stator power converter 3 is connected to the stator three-phase AC power supply 1 through the three-phase power switch 2, and the other end is electr...
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Abstract
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