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Recently, haptic information is studied as the third type of multimedia information. In order to control haptic information, the bilateral control is used widely. It is desirable to use the haptics in a training system as one of the proper examples of haptics. In the training system, the movement of the trainer is transmitted to the trainee and the trainee will be influenced. If plural haptic information...
Modular Multilevel Converters (MMCs) are a new circuit topology to realize multilevel converters. Major advantages of MMCs in comparison to other multilevel converters or standard Voltage Source Converters (VSCs) are lower costs and a modular design for high voltage applications, higher reliability and longer maintenance intervals. However, modular multilevel topologies generally require advanced...
The main theme of this paper is to present a robust controller for digital-controlled power converters. The controller design and digital implementation to robust control to achieve robustness to load disturbance while retaining steady state performance of digital-controlled buck converter are presented. The robust controller is designed based upon two-degree-of-freedom control law. The specifications...
Aiming at the problem that it is difficult to confirm the parameters of the PID controller and the parameters can not be changed once identified, an intelligent PID control method is proposed. According to the size of the system error, this algorithm controls the system with different subsections of different parameters, by using the particle swarm optimization (PSO) to optimize the parameters of...
A linear parameter varying approach for designing a constant output feedback controller for a linear time-invariant retarded system with stochastic multiplicative Wiener-type noise, that achieves a minimum bound on the H∞ performance level is introduced. The stochastic uncertainties appear in the dynamic matrices, which correspond to the delayed and non-delayed states of the system, and in the measurement...
A simple method of for observer-based design of pulse-frequency modulated (PFM) control systems is presented. The method consists of first designing a conventional observer-based control system, and then placing a pulse-frequency modulator in the control path, feeding back the PFM signal to the observer. The stability of systems designed by this method is discussed, and the method is illustrated by...
This work describes a novel modeling and simulation approach of brushless DC motor control system depended on analysis of it's mathematical model. The brushless DC motor ontology model, the voltage type inverter circuit model, the hysteresis current tracking comparative model and the PID speed controller model were constructed in the Simulink environment of Matlab. S-function was used in modeling...
Firstly the necessity of the design of signal coordination control system in urban main roads is presented , and the design thinking and process of the signal coordination control system is given, then according to the design thinking and process create a model of signal coordination control system in urban main road., and Qingyang Road of LAN Zhou City is taken for example, based on the survey data...
In the paper, after researched current usage of RFID in automated storage and retrieval system (AS/RS), based on RFID technology , by using Kingview and some other softwares, including Visual Basic and MS Access, a control system, which can manage information in AS/RS and do storage works automatically for QXLMPS-005/1 AS/RS was established. The main steps of design process were given out. This system...
In this paper, based on parameter self-tuning fuzzy PID controller, a fuzzy inference method is utilized to realize automatic regulating PID parameter, and the application of the controller in a system is studied with MATLAB. The results of simulation indicate that the controller gives a good control performance and has a high reference value for further applications.
The vehicle control system based on Network communication becomes increasingly complicated recently. The traditional research only focuses on the improvement of network communication quality or system control performance. The network configuration had been carried out to study the vehicle chassis integrated control system. Based on the MATLAB/Simulink and TrueTime Toolbox, the distributed CAN network...
Adaptive cruise control (ACC) system is a Driver assistant system, which can provide safe and comfortable driving. Based on the analysis of ACC system, a parameter self-tuning fuzzy-PID algorithm is developed to design the ACC control strategy. According to the traffic condition, the parameters of PID controller are adapted on-line by fuzzy rule. The simulation results show that the parameter self-...
Gas turbines are used widely in power generation, oil and gas industries, process plants and aviation. Efficiency and reliability is crucial in such applications. Hence, accurate modeling and control system designing is necessary. This paper first presents a nonlinear modeling of a single-shaft gas turbine in power generation application. This model is developed by solving differential and algebraic...
This paper describes a technique for designing a stabilizing controller for the stable higher order discrete-time systems via its reduced model. The reduced model is obtained by the Improved Bilinear Routh Approximation Method (IBRAM). Reduced model obtained by IBRAM is then used to determine the controller for higher order discrete-time system. It is shown that the controller which is obtained from...
A fuzzy PI controller based on analytical structure is designed to control the batching system of sintering process. With the definition of a fuzzy controller with difference space membership and sum-product inference, the analytical structure of fuzzy controller is derived to adjust the parameters of PI controller. The fuzzy PI controller based on the analytical structure is easy to be programmed,...
To achieve all the design specifications (transient stability, steady state stability, tracking and disturbance rejection property) simultaneously there is a need for two-parameter control. In this paper to improve the damping characteristics of a synchronous generator under disturbance conditions a two parameter controller is utilized in place of single parameter controllers. In power system the...
Induction generators have gained an important rule in many applications. These generators have a very wide rotor speed operation range and reactive power with non-linear characteristics. As a result the linear controllers which have been designed for an operating point don't show a properly function for controlling the generator outputs. In this paper in order to overcome this problem an adaptive...
A separation control method for a flight vehicle is presented. The difficulty of the control system of the flight vehicle lies in the sequential control in the separation process. Through test on the electromagnetism characteristic of the electromagnetism sucker and the electro-magnet, finally proposes one kind of reliable sequential control plan. Experiment proved, the control system designed performs...
In This paper a new Fuzzy Controlled Welding Machine (FCWM) is introduced and the results of the new control method are explained. The Fuzzy controller is applied to the welding machine to improve some problems of welding process. The new intelligent controller guaranties a constant current during welding to improve welding quality. It also provides some features such as hotstart and anti-stuck function...
This paper introduces improvement in a practical nominal characteristic trajectory following (NCTF) controller for two mass point-to-point (PTP) rotary positioning systems. The NCTF controller consists of a nominal characteristic trajectory (NCT) as a movement reference and a compensator. The objective of the NCTF controller is to make the object motion follow the NCT and end at its origin. The NCTF...
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