Hybrid control based on a novel fast convergence and high precision CMAC for electric loading system

2009 ◽  
Author(s):  
Bo Yang ◽  
Zhe Wang
Keyword(s):  
High Precision ◽  
Hybrid Control ◽  
Fast Convergence ◽  
Electric Loading ◽  
Loading System

scholarly journals Research on design method of double-loop electric servo loading system with high-frequency band based on H∞ control strategy

2020 ◽  
pp. 002029402096213
Author(s):  
Yang Shui ◽  
Jianli Wei ◽  
Jie Yan
Keyword(s):  
Frequency Band ◽  
Loop System ◽  
Aerodynamic Load ◽  
Double Loop ◽  
Hardware In The Loop ◽  
Load Spectrum ◽  
Electric Loading ◽  
Technical Requirements ◽  
Loading System ◽  
High Dynamic

In the hardware-in-the-loop simulation, the goal of electric loading is to realize the accurate tracking of the torque signal and test the performance of the aircraft actuator system. For some high dynamic aircraft, it is necessary to reduce the influence of the surplus torque to increase the system frequency band. This paper introduces a new electric loading system which adopts a double-loop servo motor as the torque loading mechanism. It applies two loops to track the position of the rudder and the aerodynamic load spectrum respectively. For the purpose of reducing the disturbance between two loops of the scheme, a two-DOF H∞ robust controller is designed, which improves the robustness of the system effectively. The simulation results show that the new system increases the upper limit of 25 Hz frequency band of the traditional single-loop system with PID control to the maximum of 40 Hz. The double-loop system thereby meets the technical requirements of the hardware-in-the-loop simulation experiment for high dynamic aircrafts.

Design and Application of Large Torque Electrical Load Simulator

2013 ◽  
Vol 427-429 ◽  
pp. 660-663
Author(s):  
Zhi Qiang Wei
Keyword(s):  
Mathematical Model ◽  
High Precision ◽  
Hybrid Control ◽  
Electrical Load ◽  
Practical Application ◽  
Compensation Control ◽  
Torque Load ◽  
Load Simulator ◽  
Surplus Torque ◽  
Rudder Angle

In order to meet the testing requirement of positive and reverse operation large torque load for new rudder, an electrical load simulator is designed. The system mathematical model is established and the feedforward compensation control of torque and rudder angle is adopted to restrain the surplus torque according to the principle of invariance. The high precision large torque load under positive and reverse operation for rudder is realized by torque and position hybrid control. The practical application shows that the proposed method can effectively restrain surplus torque and the system meets the high precision torque load under positive and reverse operation for rudder very well.

Research on Control Algorithm of Electric Loading System

2013 ◽  
Vol 579-580 ◽  
pp. 818-822
Author(s):  
Xiang Zhang ◽  
Guang Lin Wang ◽  
Xu Dong Pan ◽  
Hai Bing Xie
Keyword(s):  
Pid Control ◽  
Control Algorithm ◽  
Simulation Analysis ◽  
Feed Forward ◽  
Complex Control ◽  
Electric Loading ◽  
Loading System ◽  
Disturbance Torque

The disturbance torque which is caused by the interference of the motor position has observably impact on accuracy of the loading system. According to unstable loading channel and disturbance torque, this paper use a complex control algorithm of differential forward PID control and feed-forward compensation. At the end of this paper, the simulation analysis results show that the feed-forward compensation can observably eliminate the influence of the disturbance torque, and improve the accuracy of the loading system.

Experiment and Study of Electric Control Loading System

2012 ◽  
Vol 462 ◽  
pp. 720-726 ◽  
Author(s):  
Jia Cai Fu ◽  
Xian Hua Liu ◽  
Tian Chu Ma
Keyword(s):  
Control Strategy ◽  
Hybrid Control ◽  
Torque Control ◽  
Current Loop ◽  
Prototype System ◽  
Loop Current ◽  
Electric Control ◽  
Loading System ◽  
Control Load ◽  
Excess Power

According to the aircraft control load power model, using electric power servo loading approach in designing the aircraft simulator electric control loading system, introduced a control loading system works as well as excess power causes. According to the direct driving torque control servo motor applied characteristics of double by force, and the compensation of hybrid control strategy. Using force is the inner loop, current loop using. At the same time as manipulate load system, we can adopt " Structure invariability principle " compensation strategies that speed compensation measures to abate force to influence on the performance of the control system. Experiment measures to eliminate that speed compensation system of plus torque, and good results have been achieved. Simulation results show that, using the hybrid control strategy can effectively eliminate the surplus torque control steady-state error, tracking precision, to force the requirements for the construction, performance control principle prototype system load provides data parameters and the control strategy.

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