Overload Control of Supersonic Missile System

2011 ◽  
Vol 295-297 ◽  
pp. 1761-1763
Author(s):  
Yu Qiang Jin ◽  
Qiang Ma
Keyword(s):  
Control System ◽  
Linear Systems ◽  
Control Method ◽  
Pi Control ◽  
Overload Control ◽  
Classic Method ◽  
Missile System

PI control is also an old and classic method which is effective and mostly used in linear systems. In this paper, two assumptions are proposed to simplify the design of overload control system of supersonic missiles. No aero-coefficient is necessary to be known because of the adopting of PI control method.

scholarly journals Self-Triggered Model Predictive Control for Linear Systems Based on Transmission of Control Input Sequences

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Koichi Kobayashi
Keyword(s):  
Control System ◽  
Model Predictive Control ◽  
Linear Systems ◽  
Communication Networks ◽  
Predictive Control ◽  
Control Method ◽  
Input Sequence ◽  
Networked Control System ◽  
Control Input ◽  
Sampled Data

A networked control system (NCS) is a control system where components such as plants and controllers are connected through communication networks. Self-triggered control is well known as one of the control methods in NCSs and is a control method that for sampled-data control systems both the control input and the aperiodic sampling interval (i.e., the transmission interval) are computed simultaneously. In this paper, a self-triggered model predictive control (MPC) method for discrete-time linear systems with disturbances is proposed. In the conventional MPC method, the first one of the control input sequence obtained by solving the finite-time optimal control problem is sent and applied to the plant. In the proposed method, the first some elements of the control input sequence obtained are sent to the plant, and each element is sequentially applied to the plant. The number of elements is decided according to the effect of disturbances. In other words, transmission intervals can be controlled. Finally, the effectiveness of the proposed method is shown by numerical simulations.

Research on Accessibility of Integral Sliding Mode Contorl of Missile System

2011 ◽  
Vol 66-68 ◽  
pp. 212-216
Author(s):  
Wen Guang Zhang ◽  
Jun Wei Lei ◽  
Ling Ling Wang
Keyword(s):  
Control System ◽  
Transfer Function ◽  
Sliding Mode Control ◽  
Sliding Mode ◽  
Control Law ◽  
Overload Control ◽  
Function Type ◽  
Dynamic Coefficients ◽  
Missile System ◽  
Backstepping Algorithm

Considering the no uncertain air-dynamic coefficients situation, a kind of sliding mode control law, which was composed of the angle velocity and overload error, was designed for the overload control system of missile. And the accessibility of sliding mode was analyzed. What worthy pointing out is that a transfer- function-type backstepping algorithm was adopted to solve the derivative item of actuator and a novel type of control was proposed.

scholarly journals Dynamic Performance Assessment of Primary Frequency Modulation for a Power Control System Based on MATLAB

Processes ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 11 ◽  
Author(s):  
Shizhe Li ◽  
Yinsong Wang
Keyword(s):  
Control System ◽  
Performance Assessment ◽  
Internal Model ◽  
Control Method ◽  
Dynamic Performance ◽  
Dynamic Control ◽  
Pi Control ◽  
Control Performance ◽  
Assessment Index ◽  
Primary Frequency

The primary frequency modulation (PFM) performance of a power control system (PCS) is an important factor affecting the security and stability of a power grid. The traditional control method is proportional integral (PI) control. In order to improve its dynamic control performance, a control method based on the combination of internal model control (IMC) and PI is proposed. Using the method of theoretical assessment and system identification, a simple simulated model of the typical PCS is established. According to the principle of system identification and the least square estimation (LSE) algorithm, the mathematical models of a generator and a built-in model are established. According to the four dynamic performance indexes, the main and auxiliary assessment index of the PCS are defined, and the benchmark and the result of the performance assessment are given. According to three different structures, the PFM dynamic performance of the PCS is analyzed separately. According to the dynamic performance assessment index of PFM, the structure of the control system and the influence of different parameters on the performance of the PCS are analyzed under ideal conditions. The appropriate control structure and controller parameters are determined. Secondly, under the non-ideal condition, the influence of the actual valve flow coefficient on the performance of the control system is studied under two different valve control modes. The simulation results show that the internal model combined with PI has better dynamic control performance and stronger robustness than the traditional PI control, and it also has better application prospects for thermal power plants.

Researching of Speed Regulation System for AC Permanent Magnet Synchronous Motor

2013 ◽  
Vol 303-306 ◽  
pp. 1204-1208 ◽  
Author(s):  
Bing Li ◽  
Yue Zhen Feng
Keyword(s):  
Control System ◽  
Permanent Magnet ◽  
Control Method ◽  
Permanent Magnet Synchronous Motor ◽  
Speed Control ◽  
Synchronous Motor ◽  
Regulation System ◽  
Pi Control ◽  
Adaptive Fuzzy ◽  
Speed Control System

In order to improve the speed performance of permanent magnet synchronous motor(PMSM) speed control system, and increase system reliability and adaptability, PMSM current-speed double close loop speed control system based vector control was designed. Current loop adopted traditional PI controller, speed controller adopted adaptive fuzzy PI control method which was based on traditional PI control method and fuzzy control method. Space voltage pulse width modulation (SVPWM) technology was used to control working condition of the inverter. The system simulation model was established in MATLAB/SIMULINK environment, and ran this simulation model.The simulation results show that: This system is feasible, and adaptive fuzzy PI control system has better dynamic and static characteristics than traditional PI control method.

Research on PMSM Fuzzy PI Control System

2013 ◽  
Vol 475-476 ◽  
pp. 628-634
Author(s):  
Wei Qu ◽  
Zhao Xi Zhang ◽  
Xiao Xin Sun ◽  
Wen Qiang Li ◽  
Xiao Jie Chen
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Modular Design ◽  
Control Method ◽  
Permanent Magnet Synchronous Motor ◽  
Response Characteristic ◽  
Fast Response ◽  
Pi Control ◽  
Current Loop ◽  
Loop Current

In this paper, a fuzzy PI control method is proposed in order to overcoming shortcomings of traditional PI regulator control permanent magnet synchronous motor, in this paper. This method combined traditional PI control with fuzzy control is enable to achieve self-tuning fuzzy parameters PI control and take into account sensitivity, and robustness of the system. A double-loop (current loop and velocity loop) fuzzy control system is designed by this method. Modular design of the fuzzy PI controller based on FPGA chip is realized and simulation and experimental is done. The experimental results show that this system has advantages of fast response characteristic, good stability and high precision adjustment.

Research on Simulation of SRM Drive System Based on Simulink

2012 ◽  
Vol 215-216 ◽  
pp. 1327-1330
Author(s):  
Xiang Zhong Meng ◽  
Jiang Hong Wang
Keyword(s):  
Control System ◽  
Control Algorithm ◽  
Control Method ◽  
Drive System ◽  
Pi Control ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
The Stability ◽  
Motor Drive System ◽  
Better Than

A well-performed switched reluctance motor drive system was designed, and the diagram of the hardware on the basis of control system by TMS320F28335 chip was given. A fuzzy PI control method is developed to control SRM in drive system. On the platform of MATLAB/Simulink, the SRM drive system was researched and simulated. The stability of system is analyzed. The results indicated that the performance of SRM speed control system by fuzzy PI control algorithm is obviously better than that by conventional PI control algorithm.

A Servo Control System Based on Fuzzy PI Method for Transverse Flux Machine in Mechanical Press

2014 ◽  
Vol 936 ◽  
pp. 1730-1734
Author(s):  
Jia Xie ◽  
Ai Lin Gao ◽  
Yan Xiang Wu ◽  
Zhong Yong Gao
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Control Method ◽  
Servo Control ◽  
Pi Control ◽  
Speed Controller ◽  
Servo Control System ◽  
Mechanical Press ◽  
Transverse Flux ◽  
Fuzzy Adaptive

A control method for servo control system of Assembled Claw Pole Stator Transverse Flux Machine(ACPTFM) by controlling the armature current Root-Mean-Square (RMS) and the angle between armature current and no-load EMF is proposed in this paper. The servo control system of ACPTFM is composed of a series of closed-loop controllers, and the most complexity design of speed controller is described in detail. Fuzzy adaptive PI control method which integrates the advantages of fuzzy control and PI control is adopted to design the speed controller. Experimental results show that it can improve the system dynamic response and steady state accuracy.

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