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Multipurpose optimization method for double closed-loop speed governing system of brushless DC motor

A brushed DC motor, multi-objective optimization technology, applied in the direction of single motor speed/torque control, electronic commutator, etc., can solve problems such as speed deviation and current deviation

Active Publication Date: 2015-10-14
NANJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an improvement on the existing brushless DC motor double-closed-loop speed regulation system, introduce the speed deviation and current deviation, and use the quantum genetic algorithm to effectively improve the working efficiency of the brushless DC motor speed regulation Multi-objective optimization method for double closed-loop speed regulation system of brushless DC motor

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  • Multipurpose optimization method for double closed-loop speed governing system of brushless DC motor
  • Multipurpose optimization method for double closed-loop speed governing system of brushless DC motor
  • Multipurpose optimization method for double closed-loop speed governing system of brushless DC motor

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Embodiment Construction

[0036] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] The multi-objective optimization method of a brushless DC motor double closed-loop speed regulation system designed by the present invention, in the actual application process, specifically includes the following steps:

[0038] Step 001. If figure 1 As shown, based on the MATLAB / SIMULINK platform, a brushless DC motor double closed-loop speed control system is established, including speed loop, current loop and, brushless DC motor, voltage inverter, pulse width modulation and commutation, angular velocity detection, For the modules of position detection, speed calculation and current detection, the speed loop includes a speed controller, and the current loop includes a current controller. The current loop receives the output of the speed loop as the input current value of the current loop, and enters step 002.

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Abstract

The invention relates to a multipurpose optimization method for a double closed-loop speed governing system of a brushless DC motor. Based on the quantum genetic algorithm, the multipurpose optimization for the double closed-loop speed governing system of the brushless DC motor can be realized. In this way, the problem in the prior art that the manual setting operation is time-consuming, labor-consuming and large in error can be effectively solved. Meanwhile, the prematurity and the local convergence ability of conventional algorithms are poor can also be overcome. In addition, a multipurpose fitness function is designed. Therefore, the damage to components caused by the large amount of controlled variables can be effectively prevented, so that an ideal speed governing system can be obtained.

Description

technical field [0001] The invention relates to a multi-objective optimization method for a double-closed-loop speed regulation system of a brushless DC motor, belonging to the technical field of motor speed regulation optimization. Background technique [0002] Brushless Direct Current Motor (BLDCM) has the advantages of simple structure, reliable operation, convenient maintenance and no mechanical commutator, especially with the development and rapid maturity of power electronics technology and new permanent magnet materials, brushless DC Motors have been widely used in industrial production. [0003] At present, the most typical application of brushless DC motor speed control system is the double closed-loop speed control system, in which the double closed-loop speed control system is controlled by the speed controller and the current controller; the controller in the double closed-loop speed control system is often selected with simple principle and wide application The...

Claims

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Application Information

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IPC IPC(8): H02P6/08H02P6/16
Inventor 徐海峰林金星
Owner NANJING UNIV OF POSTS & TELECOMM
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