The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Water level in boiler drum is nonlinear, large time-varying, strong-coupling and multivariable. On the basis of establishing mathematical model of the regulation of boiler drum water level, fuzzy control theory is used for designing the control system for water level in the boiler drum, fuzzy control and PID control are respectively used for controlling water level in the drum. At the same time, design...
The way of modeling and simulation for Active-Disturbance-Rejection-Controller (ADRC) is discussed by masking subsystem and building user custom library in Matlab/Simulink, after studying the basic principle and structure of ADRC. In this way, the programming workload of researching ADRC can be reduced, and the complex blocks group in Simulink can simplify. The simulation example and results show...
Taking error and error rate of change as input, this paper realized the online slef-tuning of PID parameter with the method of fuzzy inference, and made a modeling design and simulation on the controller in the Matlab environment, and realized the non-linear processing to PID controller and the non-linear mapping between the changes of system characteristics and controlled variables. This hybrid system...
Under the control object and the structure of control system built, we set the range of parameters and the objective function and get the best parameters of PID control of the system by genetic algorithm, making use of MATLAB we can do the modeling and simulation of the PID control and fuzzy control. The results of simulation show that the dynamic response of fuzzy control is faster than PID control...
In this paper, we propose a Fuzzy-PID composite parameters' controller. Fuzzy control based on human language and habits of mind belongs to Intelligent Control, is applicable in automatic control field in complex system without accurate mathematic model. However, general fuzzy controller has steady-state static error. While PID can eliminate static error and principle is simple, easy to use and good...
In view of the characteristics of nonlinear, time-variable, large hysteresis of the heating furnace, combined with the advantages and disadvantages of the PID control and the basic principles of fuzzy control, we designed the system which united the fuzzy control and the PID control. After the MATLAB simulation test, the system has the merits of good timeliness, quick speed of the control, the stable...
Electric Power Steering (EPS) has important significance in improving the auto's dynamic and static performances. This paper deals with the mathematical model and characteristic curves of EPS System. First, the principle and structure of EPS are discussed. Then the characteristics of EPS system are analyzed, including the typical power curves which deal the relationship of the assist torque and the...
A new method to develop automobile's anti-lock braking system is presented under MATLAB software condition. First, a single wheel automobile model and an arrester model are established. Then, several sub modules of anti-lock braking system (ABS) are established, that is slippage rate calculating module, wheel supporting force module, road surface input module and full automobile module. Finally, the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.