Motor rotor initial position detection method, system, storage medium and device
A technology of rotor initial position and detection method, which is applied to control electromechanical transmission device, control system, control generator, etc., can solve the problem of low accuracy and achieve the effect of ensuring accuracy
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Embodiment 1
[0053] figure 1 A motor control system logic block diagram provided by the embodiment of the present invention, such as figure 1 As shown, the motor control system includes: processor 11, power source 12, and motor 13, processor 11 and motor 13 are electrically connected to the power supply 12.
[0054] The power source 12 provides a voltage in accordance with the control command of the processor 11 to operate the rotor of the motor.
[0055] This embodiment provides a rotor initial position detection method of a motor, figure 2 The flow diagram of a rotor initial position detecting method of a motor according to an embodiment of the present invention, in need, is that the initial position detection method of the rotor of the motor provided by the embodiment of the present invention is not figure 2 And the following specific order is limit, it should be understood that in other embodiments, the order of the rotor initial position detecting method of the motor according to the embod...
Embodiment 2
[0074] exist figure 2 Based on, the present invention also provides a detection method. Figure 5 A flow schematic of the rotor initial position detection method of another motor according to an embodiment of the present invention, such as Figure 5 As shown in step S1, the method also includes:
[0075] Step S7, the control power supply provides three single-phase initial voltages to rotate the rotor to the initial position, wherein the phase difference between the phase adjacent two single-phase initial voltages in the three single-phase initial voltages is 120 °.
[0076] This embodiment provides three single initial voltage possible implementations, specific, Image 6 The position of the rotor of another motor according to the embodiment of the present invention, such as Image 6 As shown, the three single-phase initial voltages are U1, U2, and U3, respectively, wherein the electrical angle of U1 is 0 °, the electromal angle of U2 is 120 °, and the electrical angle of U3 is -120 °...
Embodiment 3
[0091] In order to determine the Antarctic and Arctic of the rotor, the present embodiment provides a voltage opposite to the two directions along the position along the rotor, determines the amount of rotor, in accordance with the amount of current obtained in each direction voltage, specifically, the directional voltage includes the first direction. The voltage and the second direction voltage, the direction current includes a first direction current and a second direction current, Figure 8 A flow schematic of the rotor initial position detection method of another motor according to an embodiment of the present invention, such as Figure 8 As shown, step S4 includes:
[0092] Sub-step S41, the control power supply provides a first direction voltage and a second direction voltage to obtain a first direction current and a second direction current, wherein the first direction voltage and the second direction voltage are vector, and the first direction voltage is in the first directi...
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