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Synchronous motor self-tuning method suitable for vertical elevator

A synchronous motor and self-tuning technology, which is applied in the direction of motor generator control, electronic commutation motor control, control generator, etc., can solve the problems of low efficiency, complex algorithm, cumbersome steps, etc., and achieve high efficiency, small error, and easy operation simple effect

Inactive Publication Date: 2016-06-15
上海贝思特控制技术有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most elevator control systems on the market mainly use DC attenuation method and voltage integration method to detect motor parameters. Not only the algorithm is complicated, but also the rotor needs to be rotated. Therefore, the car must be hoisted to complete the parameter setting and debug. great inconvenience to staff
However, some systems require step-by-step operation, first to complete the learning of resistance and inductance values, and then to adjust the initial angle of the motor, and errors often occur during the adjustment process, and multiple learning and averaging are required to ensure that the parameters are within the error range of the normal operation of the elevator Internal, cumbersome steps and low efficiency

Method used

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  • Synchronous motor self-tuning method suitable for vertical elevator
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  • Synchronous motor self-tuning method suitable for vertical elevator

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Embodiment Construction

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0029] combine Figure 1 to Figure 4 As shown, a synchronous motor self-tuning method suitable for vertical elevators, including stator resistance tuning steps, stator inductance tuning steps and initial angle tuning steps, wherein:

[0030] Stator resistance tuning steps are as follows: use DC injection method to detect stator resistance, inject a certain amplitude of DC voltage into the motor, and record the stable stator phase current I d and equivalent DC voltage U d . The equivalent circuit expression of a synchronous motor is:

[0031] U d = RI d + L d × dI d ...

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Abstract

The invention provides a synchronous motor self-tuning method suitable for a vertical elevator. The synchronous motor self-tuning method comprises a stator resistance tuning step, a stator inductance tuning step and an initial angle tuning step. The synchronous motor self-tuning method is applied to an elevator control system, is suitable for various power motors, is simple to operate and high in efficiency and can finish parameter learning in one step. A lift car does not need to be hoisted in the self-tuning process, and only once parameter self-tuning is carried out in installation.

Description

technical field [0001] The invention relates to the field of elevator control, in particular to a synchronous motor self-tuning method suitable for vertical elevators. Background technique [0002] In recent years, permanent magnet synchronous motors have attracted more and more attention. Because of their high efficiency, high energy density, good control performance, and low-carbon environmental protection, they have been widely used in the elevator field. [0003] At present, the control technologies for permanent magnet synchronous motors mainly include vector control and direct torque control. In field oriented vector control, the accuracy of control parameters directly affects the performance of the entire speed control system. According to the parameter design of classical control theory, the influence of stator resistance and inductance is the most direct. Moreover, in the vector control mode, the starting torque generated by the motor depends on the accuracy of the...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P21/18
CPCH02P21/0025
Inventor 张海波唐盼盼王国玺顾锡淼杨明慧燕方方
Owner 上海贝思特控制技术有限公司
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