The Multiple AC Servomotors’ Synchronous Operation Control System Based on DSP and FPGA

2012 ◽  
Vol 490-495 ◽  
pp. 1650-1654
Author(s):  
Xiao Ding Gao ◽  
Zhao Ming Nie ◽  
Yuan Chao Li ◽  
Jia Jia Wang
Keyword(s):  
Control System ◽  
High Precision ◽  
Dynamic Performance ◽  
Speed Control ◽  
Pi Controller ◽  
Precision Control ◽  
Speed Control System ◽  
Operation Control ◽  
Synchronous Operation

The multi AC servomotor synchronous operation control system based on DSP+FPGA and a new intelligent PI controller have been designed. The intelligent PI controller can change the structure of controller and parameters dynamically according to the running status of the system, which improves the dynamic performance of the speed control system. In terms of the condition without loading, the experiments about four AC servomotors in different revolving speed have been implemented and The results of experiments show that the system can achieve the high precision control of the operation of multiple AC servomotors synchronously.

Circular Nets Printing Machine Synchronicity System Based on Intelligent PI Controller

2011 ◽  
Vol 331 ◽  
pp. 476-480
Author(s):  
Xiao Ding Gao ◽  
Gang Wang ◽  
Zhao Ming Nie
Keyword(s):  
Control System ◽  
Dynamic Performance ◽  
Pi Controller ◽  
Pi Control ◽  
System Operation ◽  
Operation System ◽  
Synchronous Operation ◽  
Printing Machine

The Circular nets printing machine synchronicity system based on intelligent PI controller has been designed. The intelligent PI controller can adjust its structure and parameters online, which can remarkably improve dynamic performance of the system. Comparing with common PI control system, it successfully solves the contradiction between quickness and smoothness. The synchronous operation system operation testing results indicate that the biggest error of synchronicity is less than δ=5r／min. It can completely meet the technological requirements of circular nets printing machine.

High-Precision Locating Technology of Automatic Port High-Speed & Heavy Load Rail Power-Driven Trolley

2012 ◽  
Vol 442 ◽  
pp. 276-280
Author(s):  
Xi Xia Huang ◽  
Xiang Pin Kong
Keyword(s):  
Control System ◽  
High Precision ◽  
High Speed ◽  
Speed Control ◽  
Variable Frequency ◽  
Heavy Load ◽  
Precise Positioning ◽  
Soft Start ◽  
Speed Control System ◽  
Braking Process

This paper proposes high-precision locating technology for high-speed & heavy load electric rail trolley in automatic port. Smooth starting/braking and precise positioning is necessary for power-driven rail trolley. This paper presents the soft start scheme and the “double stop” scheme in braking process. In the first stop process, the trolley speed is reduced using variable frequency speed control system. For the second stop process, mechanical braking is adopted for precision locating. Considering wheel-rail adhesion, the trolley braking acceleration is determined. Analysis shows soft start is able to achieve balance between acceleration and running stability of trolley, and “double stop” scheme can not only stop stably, but also achieve precise locating.

The Research of Induction Motor Vector Control System Based on Fuzzy Self-Adaptive Pi Complex Control Algorithm

2012 ◽  
Vol 260-261 ◽  
pp. 348-352
Author(s):  
Wei Wang ◽  
Xia Sun ◽  
Bao Yin Li
Keyword(s):  
Control System ◽  
Induction Motor ◽  
Pid Control ◽  
Fuzzy Controller ◽  
Dynamic Performance ◽  
Speed Control ◽  
Motor Speed ◽  
Adaptive Property ◽  
Speed Control System ◽  
Self Adaptive

According to disadvantages that traditional PID control is difficult to adjust PID parameter for nonlinear and time-variant induction motor speed control system, this paper designs fuzzy self-adaptive PI speed control system with Double Closed-Loop Fuzzy Controller by combining fuzzy control and PID control. The MATLAB simulation results show that this controller has better stability and self-adaptive property and well improved the dynamic performance of the system compared with conational controller.

Simulation of BLDCM Speed Control System Based on PI Controller with Fuzzy Parameter Regulators

2010 ◽  
Vol 29-32 ◽  
pp. 841-846 ◽  
Author(s):  
Peng Yun Song ◽  
Ji Ye Zhang ◽  
Ke Yue Zhang
Keyword(s):  
Control System ◽  
Fuzzy Controller ◽  
Simulation Models ◽  
Speed Control ◽  
Pi Controller ◽  
Motor Speed ◽  
Simulation Speed ◽  
Speed Control System ◽  
Permanent Magnet Brushless Dc ◽  
Fuzzy Parameters

A permanent magnet brushless DC motor speed control system based on PI controller with fuzzy parameters regulators is studied in this paper. First, the simulation models of motor body, inverter, PWM and logic commutation are established, and the generators of Back-EMF and hall signal are obtained by means of s-Function to improve the simulation speed and accuracy; secondly a PI controller with fuzzy parameters regulators is given; lastly designs of the fuzzy controller and of the traditional PI controller are compared with each other by the MATLAB/SIMULINK emulation. The result shows that the simulation model can simulate the actual motor well, and the PI controller with fuzzy parameters regulator is obviously superior to the traditional PI controller in both dynamic and steady-state performance.

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