Method for identifying resistor parameter of stator of wound rotor type motor

A stator resistance and parameter identification technology, which is applied in the direction of motor generator control, electronic commutation motor control, control generator, etc., can solve the problems of long identification time, heavy workload, and the influence of subjective factors of operators, and achieve identification time Less, simple calculation, save the effect of tedious work

Active Publication Date: 2013-10-02
扬州市泰康动力科技有限公司
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Problems solved by technology

Therefore, the identification time of the existing technology is long, the workload is large, and it is easily affected by the subjective factors of the

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  • Method for identifying resistor parameter of stator of wound rotor type motor

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Embodiment Construction

[0015] Such as figure 1 shown. The stator resistance parameter identification system of the wound type motor of the present invention comprises a stator current control unit 101, a power drive unit 102, a wound type motor stator winding 103, a wound type motor rotor winding 104, a voltage sensor 105 and an identification unit 106, wherein the stator The output terminal of the current control unit 101 is connected with the input terminal of the power drive unit 102 and an input terminal of the identification unit 106 respectively, and the output terminal of the power drive unit 102 is connected with the input terminal of the stator winding 103 of the wound type motor, and the stator winding of the wound type motor The output terminal of the winding 103 is connected to the input terminal of the voltage sensor 105 , and the output terminal of the voltage sensor 105 is connected to the other input terminal of the identification unit 106 .

[0016] to combine figure 1 The method ...

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Abstract

The invention discloses a method for identifying the resistor parameter of the stator of a wound rotor type motor. The method comprises the following steps: opening the circuit of the rotor winding of the wound rotor type electric motor; adopting a stator current control unit to output a control signal that the current of the q axis of the stator is 0 and the current of the d axis of the stator is a constant; adopting a power drive unit to receive the control signal and output a drive current; adopting the stator winding of the wound rotor type motor to receive the drive current; adopting a voltage sensor to measure the stator winding of the wound rotor type motor to obtain a voltage signal of the d axis of the stator; adopting an identification unit to receive the control signal and the voltage signal of the d axis of the stator, and using the voltage of the d axis of the stator to be divided by the current of the d axis of the stator to obtain the resistor parameter of the stator. According to the method, cumbersome work and errors, caused by manual identification, can be eliminated; the method is simple in computation and spends less time in identification.

Description

technical field [0001] The invention relates to a method for identifying parameters of a wound-type motor, in particular to a method for identifying parameters of a stator resistance of a wound-type motor. Background technique [0002] Wound motors are widely used in hoists, cranes, tower cranes and other places that require heavy load starting and speed regulation. The vector control technology can make the wound motor obtain the same transient response characteristics as the separately excited DC motor, realize the rapid response to the load disturbance and the reference value change, and has been widely used. The analysis of operating characteristics and the design of high-performance control system for vector control of wound-wound motors require accurate knowledge of the stator resistance parameters of wound-wound motors. However, manufacturers generally do not provide stator resistance parameters. Even if the manufacturer can provide it, due to the influence of vario...

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Application Information

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IPC IPC(8): H02P21/14
Inventor 张懿魏海峰冯友兵
Owner 扬州市泰康动力科技有限公司
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