A multi-objective optimization method for double closed-loop speed regulation system of brushless DC motor

A brush DC motor, multi-objective optimization technology, applied in the direction of single motor speed/torque control, current controller, etc., can solve the problems of speed deviation, current deviation, etc., achieve a good speed regulation system, prevent component damage, solve time-consuming effect

Active Publication Date: 2018-01-09
NANJING UNIV OF POSTS & TELECOMM
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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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  • A multi-objective optimization method for double closed-loop speed regulation system of brushless DC motor
  • A multi-objective optimization method for double closed-loop speed regulation system of brushless DC motor
  • A multi-objective optimization method for double closed-loop speed regulation system of brushless DC motor

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Embodiment Construction

[0036] The specific implementation manners of the present invention will be described in further 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 multi-objective optimization method for a double-closed-loop speed regulation system of a brushless DC motor. The multi-objective optimization for the double-closed-loop speed regulation system of a brushless DC motor is realized based on a quantum genetic algorithm, which can effectively solve the time-consuming and labor-intensive manual setting and large errors. And other problems, and overcome the difficulties of the previous algorithm "premature" and poor local convergence ability; in addition, the design of multi-objective fitness function can effectively prevent the damage of components caused by excessive control amount, which is conducive to obtaining a good speed control system.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/08H02P6/28
Inventor 徐海峰林金星
Owner NANJING UNIV OF POSTS & TELECOMM
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