PID parameter optimization method for permanent magnet synchronous motor control system

A permanent magnet synchronous motor and control system technology, applied in the control system, vector control system, motor generator control, etc., can solve the problems of increasing the research and development cost of the control system, long debugging time, and danger

Inactive Publication Date: 2016-12-07
SHENYANG AEROSPACE UNIVERSITY
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Problems solved by technology

[0003] The PID controller has many advantages such as good stability, reliable operation, and good adaptability; however, the tuning of PID parameters has always been a difficult problem for engineering personnel, and it is generally carried out through empirical methods based on system characteristics and engineering experience. PID parameter tuning; the disadvantages of this method are: low efficiency, poor PID parameter optimization performance, long debugging time, high debugging cost, and some special systems are accompanied by danger, especially not suitable for parameter debugging of some high-precision control systems
The empirical debugging method makes it difficult to achieve the optimal performance index of the control system, and greatly increases the R&D cost of the control system and prolongs the R&D cycle

Method used

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  • PID parameter optimization method for permanent magnet synchronous motor control system
  • PID parameter optimization method for permanent magnet synchronous motor control system
  • PID parameter optimization method for permanent magnet synchronous motor control system

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specific Embodiment 1

[0087] Specific embodiment 1: combine Figure 1-Figure 8 , a PID parameter optimization method for a permanent magnet synchronous motor control system; comprising the following steps:

[0088] Step 1: According to the inner loop current loop control period T of the actual control system C , Outer loop speed loop control period T S , Crystal frequency f osc , crystal period T s , calculate the simulation step size T of the simulation system 1 , current loop period T C1 and the velocity loop period T S1 ;

[0089] Step 2: according to permanent magnet synchronous motor rated current, rated speed, carry out normalized calculation;

[0090] Step 3: CLARK transformation;

[0091] Step 4: PARK transformation;

[0092] Step 5: IPARK transformation;

[0093] Step 6: SVPWM design;

[0094] Step 7: PID parameter discretization process;

[0095] Step 8: set up control system parameter evaluation function;

[0096] Step 9: genetic algorithm design;

[0097] Step 10: configur...

specific Embodiment 2

[0165] Specific embodiment 2: Specific embodiment 2: the present invention is based on a kind of permanent magnet synchronous motor control system PID parameter optimization method, the user can set the device in the simulation environment according to the motor of the control system of oneself, the inverter, according to the control program of oneself related configuration in the simulation system, set the relevant configuration options in the simulation system, and modify the relevant parameter range at the same time, then you can use the present invention to adjust and optimize the control parameters, and finally apply the parameter configuration in the simulation environment to your actual in the control system.

[0166] The configuration and settings of the simulation environment are as follows: Windows 10x64 operating system; Intel(R) Core(TM) i5-3230M processor; 8G memory; the simulation software uses Matlab8.5 of MathWorks Company, including the Simulink module.

[016...

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Abstract

Disclosed is a PID parameter optimization method for a permanent magnet synchronous motor control system. The method comprises the following steps: (1) calculating simulation step length T1, current loop period TC1 and speed loop period TS1 according to parameters of an actual control system; (2) carrying out normalization calculation on current feedback of a current loop and speed feedback of the current loop according to parameters of an actual system permanent magnet synchronous motor; (3) carrying out CLARK transformation; (4) carrying out PARK transformation; (5) carrying out IPARK transformation; (6) carrying out SVPWM design; (7) utilizing matlab language to enable a discretized PID regulator; (8) establishing a control system parameter evaluation function; (9) designing a genetic algorithm; (10) configuring a SIMULINK permanent magnet synchronous motor and IGBT simulation model parameters; (11) building up a SIMULINK simulation model of the permanent magnet synchronous motor space vector algorithm; and (12) optimizing the parameters.

Description

technical field [0001] The invention belongs to the field of permanent magnet synchronous motor control systems, and in particular relates to a method for optimizing PID parameters of a permanent magnet synchronous motor control system. Background technique [0002] Permanent magnet synchronous motors are widely used to realize high-precision and high-efficiency servo control systems due to their high energy efficiency, high moment-to-inertia ratio, high energy density, environmental protection and low carbon. With the further improvement of the precision and performance requirements of the servo control system, the PID controller has become one of the key links in the actual motor control system. [0003] The PID controller has many advantages such as good stability, reliable operation, and good adaptability; however, the tuning of PID parameters has always been a difficult problem for engineering personnel, and it is generally carried out through empirical methods based on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/14G06F17/50
CPCG06F30/17G06F30/367H02P21/0003H02P21/14
Inventor 赵鑫李玉峰李海雄张佩赵为平江秀红王宇鹏邵清亮徐嵩胡乃瑞
Owner SHENYANG AEROSPACE UNIVERSITY
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