A Speed Regulation System of DC Motor Based on PWM Technology

2010 ◽  
Vol 29-32 ◽  
pp. 2194-2199 ◽  
Author(s):  
Wen Cheng Wang
Keyword(s):  
Control System ◽  
Integrated Circuits ◽  
High Stability ◽  
Dc Motor ◽  
Hall Sensor ◽  
Regulation System ◽  
Operating Parameters ◽  
Motor Speed ◽  
Single Chip ◽  
Speed Regulation

The principles of PWM and Hall sensor have been introduced in this paper. To the defects of traditional methods, it proposed the designing strategy of DC motor speed control system based on single chip microcontroller with integrated circuits, and described the overall framework of the system. The system will generate PWM signals to control the motor accelerating, decelerating and turning, its operating parameters can be obtained through the measurement module and displayed on LCD. Experiment proved that the system has high stability, and it can meet the needs of DC motor speed regulation.

scholarly journals Twin Channel of Speed Control System Based on DSP

2011 ◽  
Vol 2-3 ◽  
pp. 447-451
Author(s):  
Bin Li ◽  
Zheng Feng Cao ◽  
Jin Ping Hong
Keyword(s):  
Control System ◽  
Frequency Conversion ◽  
Speed Control ◽  
Regulation System ◽  
Motor Speed ◽  
The Core ◽  
Speed Regulation ◽  
Speed Control System ◽  
Complex Algorithm ◽  
Exchange Data

A microprocessor as the core of the digital controller has become one of the major features AC speed regulation system in modern. Based on DSP as the core of the speed control system，it can realize complex algorithm. At the same time, it can achieve the diagnosis of system’s fault, and the self-setting of parameters controlled, etc. Thus it can make the motor speed control system have higher performance. This paper introduces the motor speed control system which consists of three DSP. This system is able to adjust two Frequency conversion motor. Division of work to the DSP is according to the function of DSP. Inter-DSP makes use of dual-port RAM to exchange data and communicate. They work together to achieve and improve the performance of the control system.

The Application of Microcontroller Timer/Counter in Speed Measuring/Speed Regulation System

2012 ◽  
Vol 490-495 ◽  
pp. 1541-1545
Author(s):  
Shi Sheng Jia ◽  
Bao Yin Li ◽  
Xue Hui Gao
Keyword(s):  
Pulse Width Modulation ◽  
Frequency Converter ◽  
Computer Control ◽  
Hall Sensor ◽  
Duty Ratio ◽  
Regulation System ◽  
Single Chip ◽  
Loop Control ◽  
Speed Regulation ◽  
Single Chip Computer

The system, a closed-loop control system which consists of single chip computer, control circuit, frequency converter and motor, can not only measure the motor’s speed, but also can set the motor’s speed conveniently and make the motor run at the set speed at last. There need to be three timers/counters to realize this function. As an enhanced 51 series microcontroller AT89S52, There are three such timers/counters (T0, T1, T2) in it. We can determine the motor’s speed with T2 by installing powerful magnet and Hall sensor on the motor’s axle. The Hall sensor generates a pulse when the motor’s axle turn a round. We can get the motor’s speed by calculating the cycle of the pulse. T1 and T2, as pulse width modulation signal generator, produce the pulse signals. Here T1 determines the cycle, and T0 determines the duty ratio. The duty ratio of pulse signals can be regulated according to the deviation between the real speed and set speed. Then the single chip computer generates corresponding DC voltage, which controls the frequency converter and makes the motor run at the set speed finally. The system can be applied to many field that has special requirements to motor’s speed.

The Study of Parameter Robustness of Induction Motor Variable Frequency Speed Regulation Adaptive Inverse Control System

2013 ◽  
Vol 313-314 ◽  
pp. 3-6
Author(s):  
Guang Rui Zhang ◽  
Jian Xue
Keyword(s):  
Control System ◽  
Induction Motor ◽  
Regulation System ◽  
Variable Frequency ◽  
Time Varying ◽  
Motor Speed ◽  
Adaptive Inverse Control ◽  
Inverse Control ◽  
Speed Regulation ◽  
Parameter Robustness

Aiming at the problem that the existence of the time varying parameter in the induction motor variable frequency speed regulation system influence the induction motor speed control performances through influences on the vector control decoupling performances, the author puts forward the solution that is to apply the adaptive inverse control scheme to the induction motor speed control system. Research findings suggest that adaptive inverse control is of high parameter robustness to both gradient parameter perturbation and mutational parameter robustness, which effectively reduces induction motor time varying parameters influences on dynamic and static performances of the frequency speed regulation system.

Design and application of an optimally tuned PID controller for DC motor speed regulation via a novel hybrid Lévy flight distribution and Nelder–Mead algorithm

2021 ◽  
pp. 014233122110196
Author(s):  
Davut Izci
Keyword(s):  
Pid Controller ◽  
Search Algorithm ◽  
Cuckoo Search ◽  
Absolute Error ◽  
Dc Motor ◽  
Cuckoo Search Algorithm ◽  
Lévy Flight ◽  
Motor Speed ◽  
Levy Flight ◽  
Speed Regulation

This paper deals with the design of an optimally performed proportional–integral–derivative (PID) controller utilized for speed control of a direct current (DC) motor. To do so, a novel hybrid algorithm was proposed which employs a recent metaheuristic approach, named Lévy flight distribution (LFD) algorithm, and a simplex search method known as Nelder–Mead (NM) algorithm. The proposed algorithm (LFDNM) combines both LFD and NM algorithms in such a way that the good explorative behaviour of LFD and excellent local search capability of NM help to form a novel hybridized version that is well balanced in terms of exploration and exploitation. The promise of the proposed structure was observed through employment of a DC motor with PID controller. Optimum values for PID gains were obtained with the aid of an integral of time multiplied absolute error objective function. To verify the effectiveness of the proposed algorithm, comparative simulations were carried out using cuckoo search algorithm, genetic algorithm and original LFD algorithm. The system behaviour was assessed through analysing the results for statistical and non-parametric tests, transient and frequency responses, robustness, load disturbance, energy and maximum control signals. The respective evaluations showed better performance of the proposed approach. In addition, the better performance of the proposed approach was also demonstrated through experimental verification. Further evaluation to demonstrate better capability was performed by comparing the LFDNM-based PID controller with other state-of-the-art algorithms-based PID controllers with the same system parameters, which have also confirmed the superiority of the proposed approach.

Experimental Research on Pulsating Two-Phase Flow Pressure Drop Characteristics in Horizontal Rectangular Channel

2014 ◽  
Author(s):  
Chong Zou ◽  
Puzhen Gao ◽  
Wei Pan ◽  
Zheng Yang ◽  
Xianbing Chen
Keyword(s):  
Control System ◽  
Rectangular Channel ◽  
Hysteresis Effect ◽  
Regulation System ◽  
Single Chip ◽  
Industrial Control ◽  
Correctional Programs ◽  
Control Computer ◽  
Industrial Control Computer ◽  
And Control

We preliminarily designed a power tracking and control system using single-chip computers and industrial control computer in the electric heating simulated power loop. The system is an innovational design based on the proven simulated nuclear power loop, with increased techniques of step-less power regulation system and modeling nuclear feedback effect correctional programs. We promoted both hardware and software designs of this power tracking and control system in this paper. It used single-chip computers as the core control chips and an industrial control computer as the additional correctional program and record carrier. The process and implementation of the control software are presented, which is designed as a fuzzy theoretical nonlinear system. In order to ensure the subsequent updates, the access interface of the system is open for following correctional programs, including the correctional program of void fraction effect, temperature effect, hysteresis effect and heat power distribution effect. Taken hysteresis effect correctional program as an example, we use an offset tic-tac clock replacing the inherent tic-tac clock in different devices of the system in order to reduce the hysteresis effect of measuring and corresponding errors. We also put out a preliminary analysis of the accurate synchronization for the system at the end of the paper.

The Application of the Vector Control in Centrifuge

2012 ◽  
Vol 490-495 ◽  
pp. 2937-2941
Author(s):  
Feng Ou ◽  
Hong Chen ◽  
Xin Xiong
Keyword(s):  
Control System ◽  
Vector Control ◽  
Regulation System ◽  
Control Technology ◽  
Speed Regulation ◽  
Regulation Method ◽  
Very High

In order to ensure the stably operation for centrifuge, this paper presents a new speed regulation method based on the vector control technology, and designs the control system with the inverter for the centrifuge. The paper introduces the fundamental principal of vector control, and analyses the power and torque required for the centrifuge from the result of the calculation and simulation. At last, the paper shows the result the application of the vector control technology in centrifuge. The result shows that the vector control speed regulation system is simple, reliable, and its acceleration stability is very high. The analysis can also provide a reference for similar centrifuge design personnel

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