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Three-level synchronous starter/generator starting control method based on current/rotate speed timesharing loop closing

A synchronous start and time-divided technology, which is applied in the direction of motor generator control, electronic commutation motor control, control generator, etc., can solve the problems of system start failure, motor torque impact, and motor dynamic start without consideration, and achieve Improve stability, reduce torque shock and prolong service life

Active Publication Date: 2016-07-13
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-level synchronous starter/generator starting control method based on current/rotate speed timesharing loop closing
  • Three-level synchronous starter/generator starting control method based on current/rotate speed timesharing loop closing
  • Three-level synchronous starter/generator starting control method based on current/rotate speed timesharing loop closing

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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-level synchronous starter / generator starting control method based on current / rotate speed timesharing loop closing, and aims at problems including torque shock and unrealizable motor dynamic starting when the method in the prior art initially starts, the initial start of a motor is finished through main generator armature current closed-loop regulating voltage vector, the following starting process of the motor is finished through rotate speed closed-loop regulating voltage vector, so that a stable starting function and a dynamic starting function of the motor in whole starting process are realized. The three-level synchronous starter / generator starting control method comprises the following advantages of 1) reducing torque shock when the motor static initial starting, prolonging service life of a motor rotating shaft, and improving stability of motor starting process; and 2) realizing the motor dynamic starting function, and reducing defects brought to an aero-engine and caused by large amount of unable timely derived high temperature aviation kerosene in an engine oil tube when starting failing.

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 Applications(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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