Three-stage synchronous starting/generator starting control method based on current/speed sub-period closed-loop

A synchronous starting and time-divided technology, which is applied in the direction of motor generator control, electronic commutation motor control, control generator, etc., can solve problems such as motor dynamic starting, motor torque impact, system starting failure, etc., to achieve The effect of reducing torque shock, prolonging service life and improving stability

Active Publication Date: 2018-02-06
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method also has the following shortcomings: there will be a certain torque impact when the motor is just started; the situation of dynamic starting of the motor is not considered
During the starting process of the aeroengine, external interference may cause the system to fail to start

Method used

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  • Three-stage synchronous starting/generator starting control method based on current/speed sub-period closed-loop
  • Three-stage synchronous starting/generator starting control method based on current/speed sub-period closed-loop
  • Three-stage synchronous starting/generator starting control method based on current/speed sub-period closed-loop

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Experimental program
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Embodiment Construction

[0032] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0033] The 2PT115-T / 2PT115-P loading platform of MAGTROL Company was used to simulate the load of the aeroengine, and a three-stage synchronous starter / generator was used to build an experimental platform.

[0034] The concrete steps that embodiment comprises are as follows:

[0035] constructor f 1 (t), f 2 (t) as follows:

[0036]

[0037] The variables in the formula are defined as follows:

[0038] u s1 *Adjust the output voltage vector amplitude for the current closed loop;

[0039] u s2 *Adjust the output voltage vector amplitude for the speed closed loop;

[0040] θ us1 *Adjust the output voltage vector angle for the torque angle closed loop;

[0041] t is the running time of the system;

[0042] t 0 is the current loop action time;

[0043] t 1 is the action time of a given voltage vector angle.

[0044] Step 1: The motor is started stati...

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Abstract

The invention relates to a three-stage synchronous start / generator start control method based on current / rotational speed time-divided closed-loop control method. Aiming at the problem that there is a torque impact during the initial start of the current method and the dynamic start of the motor cannot be realized, the main generator armature current The initial starting of the motor is completed by closed-loop adjustment of the voltage vector, and the subsequent starting process of the motor is completed through the closed-loop adjustment of the voltage vector of the speed, so as to realize the smooth start and dynamic start function of the motor during the entire starting process. The three-stage synchronous starting / generator starting control method of the present invention has the following advantages: 1) reduces the torque impact when the motor is statically initially started, prolongs the service life of the motor shaft, and improves the stability of the motor starting process; 2) The dynamic starting function of the motor is realized, which reduces the damage to the aeroengine caused by a large amount of high-temperature aviation kerosene in the engine oil pipe that cannot be exported in time when the start fails.

Description

technical field [0001] The invention belongs to the technical field of AC motor drive control, and relates to a three-stage synchronous start / generator start control method, in particular to a three-stage synchronous start / generator start control method based on current / rotational speed segmented closed-loop. Background technique [0002] The starting / power generation integrated system can save the special starting mechanism, effectively reduce the weight of the aircraft, and improve the reliability of the aircraft power system. The three-stage synchronous motor, as a commonly used generator in the current aircraft AC power system, is favored by researchers of starting / power generation integration technology due to its mature structure and high reliability. [0003] Three-stage synchronous starting / generating system such as figure 1 shown. Domestic research on the three-stage synchronous starter / generator starter control strategy started relatively late, and most of the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/34H02P21/22
Inventor 刘卫国孟涛王锐彭纪昌赵鑫鑫姜宇
Owner NORTHWESTERN POLYTECHNICAL UNIV
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