This paper discussed the structure and principle of EPS system,established the state space equation of EPS,designed PID close loop controller,and set the parameters.
In order to control the error of the vehicle's travel, has designed the External Loop controller of fuzzy and join in an intelligent integrator to avoid surge.
Since both an output voltage decoupling mechanism and a load disturbance compensation have been added, the current loop and instantaneous voltage loop controller is designed through deadbeat theory, so that the inverter's dynamic performance is much improved, and the repetitive control outer loop improves the steady-state performance.
Close-loop Controller Design for Linearized & Decoupled Nonlinear System
非线性系统线性化解耦控制的闭环控制器设计
On this basis the inner-loop current discrete controller and the outer-loop controller of VSC are built and the decoupling control for active and reactive currents are implemented.
But in two traditional vector control schemes, the equivalent stator magnetizing current is considered invariant in order to simplify the rotor current inner-loop controller.
The control system illustrates a tracking performance of the closed-loop controller with a low order transfer function G(s) and a pre-filter F(s) for a parametric uncertainty model.
The chamber uses a single vertically oscillating grid driven by a DC motor and closed-loop controller.
A closed loop controller utilises the estimated minimum temperature near each catheter as a feedback parameter, which reflects variations in local blood flow.
The closed-loop controller was able to keep the patient standing upright with minimum stimulation current, to compensate automatically for muscle fatigue and to smooth the sitting-down movement.
This paper presents a novel speed control system for servo motor.The neuron controller with its selflearning ability and its fast approximate solution algorithm of control sensitivity can realize the online learning algorithm.The neuron controller as the speed controller and the threephase hysteresis controller as the current controller together form the servo system.Through simulation and experiments,it shows that the neuron controller has the strong adaptability and better online performance.
This paper presents an induction heating control system based on fuzzy logic.Its working principles are introduced .The performances of the systems with the phase locked control, or the fuzzy controls respectively based on lookup table or regulating factor are also compared .The experimental results show that the fuzzy control system based on regulating factor has the most robust and fast control and the highest reliability compared with the others.
A controller containing double adaptive circles is presented for the speed and current of electrical drive installation in this paper. It makes electrical drive installation to be able to keep the system stable, improve the system robust.